TechTalkz.com Logo

Go Back   TechTalkz.com Technology & Computer Troubleshooting Forums > Tech Support Archives > Hardware > Mainboards - Asus

Notices

Reply
 
Thread Tools Display Modes
Old 08-11-2007, 03:51 PM   #11
Paul
Guest
 
Posts: n/a
Re: Flash bios without CPU

dropzone@cgocable.ca wrote:
> Forget it, found out it's ok, thanks everyone!
>


Yup, it's OK to put a 20 pin in a 24 pin hole.
Pin 1 goes to pin 1, leaving four empty pins bunched
at one end of the connector. The "shape" of the
nylon shells, helps check the alignment of the
proper pins.

Using a 24 pin connector, is more important if you are
installing two PCI Express video cards. If only
one PCI Express video card is present, then for the
most part, the 20 pin supply connector is good enough.

The 20 pin connector has one 12V wire. The 24 pin
connector has two 12V wires. That increases the room
for current to flow, when something in the motherboard
needs more current. Some video cards draw 12V @ 4A through
the video slot, and when two of those cards are present,
and 8 amps is being called for while 3D gaming, that is
when the 24 pin power supply is a better choice for power.

Paul
  Reply With Quote
Old 08-11-2007, 03:51 PM   #12
dropzone@cgocable.ca
Guest
 
Posts: n/a
Re: Flash bios without CPU

On Oct 26, 6:44 pm, Paul <nos...@needed.com> wrote:
> dropz...@cgocable.ca wrote:
> > Forget it, found out it's ok, thanks everyone!

>
> Yup, it's OK to put a 20 pin in a 24 pin hole.
> Pin 1 goes to pin 1, leaving four empty pins bunched
> at one end of the connector. The "shape" of the
> nylon shells, helps check the alignment of the
> proper pins.
>
> Using a 24 pin connector, is more important if you are
> installing two PCI Express video cards. If only
> one PCI Express video card is present, then for the
> most part, the 20 pin supply connector is good enough.
>
> The 20 pin connector has one 12V wire. The 24 pin
> connector has two 12V wires. That increases the room
> for current to flow, when something in the motherboard
> needs more current. Some video cards draw 12V @ 4A through
> the video slot, and when two of those cards are present,
> and 8 amps is being called for while 3D gaming, that is
> when the 24 pin power supply is a better choice for power.
>
> Paul


Thanks, well explained, but I hear there are also adapters, can those
do the job for two pci-e video cards and a 480 watts power supply?

  Reply With Quote
Old 08-11-2007, 03:51 PM   #13
Paul
Guest
 
Posts: n/a
Re: Flash bios without CPU

dropzone@cgocable.ca wrote:
> On Oct 26, 6:44 pm, Paul <nos...@needed.com> wrote:
>> dropz...@cgocable.ca wrote:
>>> Forget it, found out it's ok, thanks everyone!

>> Yup, it's OK to put a 20 pin in a 24 pin hole.
>> Pin 1 goes to pin 1, leaving four empty pins bunched
>> at one end of the connector. The "shape" of the
>> nylon shells, helps check the alignment of the
>> proper pins.
>>
>> Using a 24 pin connector, is more important if you are
>> installing two PCI Express video cards. If only
>> one PCI Express video card is present, then for the
>> most part, the 20 pin supply connector is good enough.
>>
>> The 20 pin connector has one 12V wire. The 24 pin
>> connector has two 12V wires. That increases the room
>> for current to flow, when something in the motherboard
>> needs more current. Some video cards draw 12V @ 4A through
>> the video slot, and when two of those cards are present,
>> and 8 amps is being called for while 3D gaming, that is
>> when the 24 pin power supply is a better choice for power.
>>
>> Paul

>
> Thanks, well explained, but I hear there are also adapters, can those
> do the job for two pci-e video cards and a 480 watts power supply?
>


Say you have a 20 pin power supply. You pick up a 20 pin to 24
pin adapter cable. Then connect that cable to the 24 pin motherboard
header.

That solves the problem of the current level at the motherboard 24 pin
connector. But it moves the problem back, to where the 20 pin power
supply meets the 20 pin adapter end. There is still only one 12V wire
at that point, and still a possibility that the single pin will overheat
if there are two video cards in SLI.

As for power supply ratings, not only the total watts count, but the
12V @ xx amps rating is important too. The major consumers in modern
systems are the processor (runs off +12) and the video cards (also
draw most of their current from +12). Xbitlabs has measured a few cards,
which is where I get most of my video card info. Processorfinder.intel.com
gives me power numbers for their processors. www.amdcompare.com can be
used for AMD processor power numbers.

There were some cheap 500W power supplies maybe three or four years ago,
that had extremely weak 12V outputs (not enough to run even a puny P4 based
system). Thus the 500W number by itself, is not proof of performance. The
individual rail ratings count too.

Paul
  Reply With Quote
Old 08-11-2007, 03:51 PM   #14
Arno Wagner
Guest
 
Posts: n/a
Re: Flash bios without CPU

Previously dropzone@cgocable.ca wrote:
> On Oct 26, 6:44 pm, Paul <nos...@needed.com> wrote:
>> dropz...@cgocable.ca wrote:
>> > Forget it, found out it's ok, thanks everyone!

>>
>> Yup, it's OK to put a 20 pin in a 24 pin hole.
>> Pin 1 goes to pin 1, leaving four empty pins bunched
>> at one end of the connector. The "shape" of the
>> nylon shells, helps check the alignment of the
>> proper pins.
>>
>> Using a 24 pin connector, is more important if you are
>> installing two PCI Express video cards. If only
>> one PCI Express video card is present, then for the
>> most part, the 20 pin supply connector is good enough.
>>
>> The 20 pin connector has one 12V wire. The 24 pin
>> connector has two 12V wires. That increases the room
>> for current to flow, when something in the motherboard
>> needs more current. Some video cards draw 12V @ 4A through
>> the video slot, and when two of those cards are present,
>> and 8 amps is being called for while 3D gaming, that is
>> when the 24 pin power supply is a better choice for power.
>>
>> Paul


> Thanks, well explained, but I hear there are also adapters, can those
> do the job for two pci-e video cards and a 480 watts power supply?


Very, very unlikely. The older PSUs foccussed on 3.3V and 5V
power. The new ones put most into 12V. Get a new PSU. The
cost of the 4 (!) adapters needed will be wasted.

Arno
  Reply With Quote
Old 08-11-2007, 03:51 PM   #15
dropzone@cgocable.ca
Guest
 
Posts: n/a
Re: Flash bios without CPU

On Oct 27, 12:47 pm, dropz...@cgocable.ca wrote:
> On Oct 26, 6:44 pm, Paul <nos...@needed.com> wrote:
>
>
>
> > dropz...@cgocable.ca wrote:
> > > Forget it, found out it's ok, thanks everyone!

>
> > Yup, it's OK to put a 20 pin in a 24 pin hole.
> > Pin 1 goes to pin 1, leaving four empty pins bunched
> > at one end of the connector. The "shape" of the
> > nylon shells, helps check the alignment of the
> > proper pins.

>
> > Using a 24 pin connector, is more important if you are
> > installing two PCI Express video cards. If only
> > one PCI Express video card is present, then for the
> > most part, the 20 pin supply connector is good enough.

>
> > The 20 pin connector has one 12V wire. The 24 pin
> > connector has two 12V wires. That increases the room
> > for current to flow, when something in the motherboard
> > needs more current. Some video cards draw 12V @ 4A through
> > the video slot, and when two of those cards are present,
> > and 8 amps is being called for while 3D gaming, that is
> > when the 24 pin power supply is a better choice for power.

>
> > Paul

>
> Thanks, well explained, but I hear there are also adapters, can those
> do the job for two pci-e video cards and a 480 watts power supply?


Great! thanks again everyone!

Marco

  Reply With Quote
Old 08-11-2007, 04:02 PM   #16
dropzone@cgocable.ca
Guest
 
Posts: n/a
Re: Flash bios without CPU

On Oct 27, 12:38 pm, Paul <nos...@needed.com> wrote:
> dropz...@cgocable.ca wrote:
> > On Oct 26, 6:44 pm, Paul <nos...@needed.com> wrote:
> >> dropz...@cgocable.ca wrote:
> >>> Forget it, found out it's ok, thanks everyone!
> >> Yup, it's OK to put a 20 pin in a 24 pin hole.
> >> Pin 1 goes to pin 1, leaving four empty pins bunched
> >> at one end of the connector. The "shape" of the
> >> nylon shells, helps check the alignment of the
> >> proper pins.

>
> >> Using a 24 pin connector, is more important if you are
> >> installing two PCI Express video cards. If only
> >> one PCI Express video card is present, then for the
> >> most part, the 20 pin supply connector is good enough.

>
> >> The 20 pin connector has one 12V wire. The 24 pin
> >> connector has two 12V wires. That increases the room
> >> for current to flow, when something in the motherboard
> >> needs more current. Some video cards draw 12V @ 4A through
> >> the video slot, and when two of those cards are present,
> >> and 8 amps is being called for while 3D gaming, that is
> >> when the 24 pin power supply is a better choice for power.

>
> >> Paul

>
> > Thanks, well explained, but I hear there are also adapters, can those
> > do the job for two pci-e video cards and a 480 watts power supply?

>
> Say you have a 20 pin power supply. You pick up a 20 pin to 24
> pin adapter cable. Then connect that cable to the 24 pin motherboard
> header.
>
> That solves the problem of the current level at the motherboard 24 pin
> connector. But it moves the problem back, to where the 20 pin power
> supply meets the 20 pin adapter end. There is still only one 12V wire
> at that point, and still a possibility that the single pin will overheat
> if there are two video cards in SLI.
>
> As for power supply ratings, not only the total watts count, but the
> 12V @ xx amps rating is important too. The major consumers in modern
> systems are the processor (runs off +12) and the video cards (also
> draw most of their current from +12). Xbitlabs has measured a few cards,
> which is where I get most of my video card info. Processorfinder.intel.com
> gives me power numbers for their processors.www.amdcompare.comcan be
> used for AMD processor power numbers.
>
> There were some cheap 500W power supplies maybe three or four years ago,
> that had extremely weak 12V outputs (not enough to run even a puny P4 based
> system). Thus the 500W number by itself, is not proof of performance. The
> individual rail ratings count too.
>
> Paul


On Oct 27, 12:38 pm, Paul <nos...@needed.com> wrote:
> dropz...@cgocable.ca wrote:
> > On Oct 26, 6:44 pm, Paul <nos...@needed.com> wrote:
> >> dropz...@cgocable.ca wrote:
> >>> Forget it, found out it's ok, thanks everyone!
> >> Yup, it's OK to put a 20 pin in a 24 pin hole.
> >> Pin 1 goes to pin 1, leaving four empty pins bunched
> >> at one end of the connector. The "shape" of the
> >> nylon shells, helps check the alignment of the
> >> proper pins.

>
> >> Using a 24 pin connector, is more important if you are
> >> installing two PCI Express video cards. If only
> >> one PCI Express video card is present, then for the
> >> most part, the 20 pin supply connector is good enough.

>
> >> The 20 pin connector has one 12V wire. The 24 pin
> >> connector has two 12V wires. That increases the room
> >> for current to flow, when something in the motherboard
> >> needs more current. Some video cards draw 12V @ 4A through
> >> the video slot, and when two of those cards are present,
> >> and 8 amps is being called for while 3D gaming, that is
> >> when the 24 pin power supply is a better choice for power.

>
> >> Paul

>
> > Thanks, well explained, but I hear there are also adapters, can those
> > do the job for two pci-e video cards and a 480 watts power supply?

>
> Say you have a 20 pin power supply. You pick up a 20 pin to 24
> pin adapter cable. Then connect that cable to the 24 pin motherboard
> header.
>
> That solves the problem of the current level at the motherboard 24 pin
> connector. But it moves the problem back, to where the 20 pin power
> supply meets the 20 pin adapter end. There is still only one 12V wire
> at that point, and still a possibility that the single pin will overheat
> if there are two video cards in SLI.
>
> As for power supply ratings, not only the total watts count, but the
> 12V @ xx amps rating is important too. The major consumers in modern
> systems are the processor (runs off +12) and the video cards (also
> draw most of their current from +12). Xbitlabs has measured a few cards,
> which is where I get most of my video card info. Processorfinder.intel.com
> gives me power numbers for their processors.www.amdcompare.comcan be
> used for AMD processor power numbers.
>
> There were some cheap 500W power supplies maybe three or four years ago,
> that had extremely weak 12V outputs (not enough to run even a puny P4 based
> system). Thus the 500W number by itself, is not proof of performance. The
> individual rail ratings count too.
>
> Paul


you have to help me Paul, I don't know what's going!!!
I found out that my old computer was working perfeclty, that the
problem was only my PSU, because it's not working on any other
computers I tried and my old computer IS working with other power
supplies I tried.

So now it seems I have paid for a new computer for nothing and that
all I needed was a new PSU.

However, before I knew that, I plugged my Old PSU in my new computer,
wich is composed of:
Motherboard: Asus P5KC (has 4 DDR2 slots, 2 DDR3 slots, a 775 Socket,
two PCIe x16 slots a 24 pin power input)
Processor: Intel Core 2 Quad 1066 FSB, 2.4 GHz
Memory: 4 chips of 512MB DDR2
Graphics: RADEON X1650 Pro 512MB PCIe

And tried it a couple of times, but nothing was working (of course, my
old PSU was broken and I didn't knew it yet!)

After I figured out the problem was my PSU, I tried a new one from the
store with 24 pins power for the motherboard, a StarTech AP-500S12V of
450W with these voltage outputs:
+3.3V: 30A
+5V: 45A
+12V1: 17A
And these current outputs:
+12V2: 16A
-12V: 1A
+5Vsb: 2.5A
But my new computer is still not working dammit!! The monitor shows
"No signal". Even if put the motherboard out of the case with only one
memory chip, the cpu and the graphics card and try to power up.
Is it because trying to power up with my old PSU fried the
motherboard, since it was only 20-pins power and it was broken?
Is it because the new power supply still is not powerful enough?
Is it because I have to do something special with the motherboard like
telling which PCIe slot to use, wich memory slots to use, wich kind of
processor is in the CPU between a P4, a dual core or a quad core?
There is no jumper settings in the Asus Manual and it's not saying
anything special about the quad cores, only that it can take them.

I also tried my brother's CPU, a socket 775 Pentium 4 and also tried
changing the memory chip for any other of the 4 I had, but it's still
not showing any display.

Please help me, I'm tired of this. I think I'll try to return my
motherboard for a new one, I'm pretty sure it is a default, but it
could also be the CPU, I don't have a computer to try it on and I
accidentally touched the region under the processor where the pins are
and where the manual says not to touch.

thanks again,

Marco

  Reply With Quote
Old 08-11-2007, 04:02 PM   #17
Paul
Guest
 
Posts: n/a
Re: Flash bios without CPU

dropzone@cgocable.ca wrote:
> On Oct 27, 12:38 pm, Paul <nos...@needed.com> wrote:
>> dropz...@cgocable.ca wrote:
>>> On Oct 26, 6:44 pm, Paul <nos...@needed.com> wrote:
>>>> dropz...@cgocable.ca wrote:
>>>>> Forget it, found out it's ok, thanks everyone!
>>>> Yup, it's OK to put a 20 pin in a 24 pin hole.
>>>> Pin 1 goes to pin 1, leaving four empty pins bunched
>>>> at one end of the connector. The "shape" of the
>>>> nylon shells, helps check the alignment of the
>>>> proper pins.
>>>> Using a 24 pin connector, is more important if you are
>>>> installing two PCI Express video cards. If only
>>>> one PCI Express video card is present, then for the
>>>> most part, the 20 pin supply connector is good enough.
>>>> The 20 pin connector has one 12V wire. The 24 pin
>>>> connector has two 12V wires. That increases the room
>>>> for current to flow, when something in the motherboard
>>>> needs more current. Some video cards draw 12V @ 4A through
>>>> the video slot, and when two of those cards are present,
>>>> and 8 amps is being called for while 3D gaming, that is
>>>> when the 24 pin power supply is a better choice for power.
>>>> Paul
>>> Thanks, well explained, but I hear there are also adapters, can those
>>> do the job for two pci-e video cards and a 480 watts power supply?

>> Say you have a 20 pin power supply. You pick up a 20 pin to 24
>> pin adapter cable. Then connect that cable to the 24 pin motherboard
>> header.
>>
>> That solves the problem of the current level at the motherboard 24 pin
>> connector. But it moves the problem back, to where the 20 pin power
>> supply meets the 20 pin adapter end. There is still only one 12V wire
>> at that point, and still a possibility that the single pin will overheat
>> if there are two video cards in SLI.
>>
>> As for power supply ratings, not only the total watts count, but the
>> 12V @ xx amps rating is important too. The major consumers in modern
>> systems are the processor (runs off +12) and the video cards (also
>> draw most of their current from +12). Xbitlabs has measured a few cards,
>> which is where I get most of my video card info. Processorfinder.intel.com
>> gives me power numbers for their processors.www.amdcompare.comcan be
>> used for AMD processor power numbers.
>>
>> There were some cheap 500W power supplies maybe three or four years ago,
>> that had extremely weak 12V outputs (not enough to run even a puny P4 based
>> system). Thus the 500W number by itself, is not proof of performance. The
>> individual rail ratings count too.
>>
>> Paul

>
> On Oct 27, 12:38 pm, Paul <nos...@needed.com> wrote:
>> dropz...@cgocable.ca wrote:
>>> On Oct 26, 6:44 pm, Paul <nos...@needed.com> wrote:
>>>> dropz...@cgocable.ca wrote:
>>>>> Forget it, found out it's ok, thanks everyone!
>>>> Yup, it's OK to put a 20 pin in a 24 pin hole.
>>>> Pin 1 goes to pin 1, leaving four empty pins bunched
>>>> at one end of the connector. The "shape" of the
>>>> nylon shells, helps check the alignment of the
>>>> proper pins.
>>>> Using a 24 pin connector, is more important if you are
>>>> installing two PCI Express video cards. If only
>>>> one PCI Express video card is present, then for the
>>>> most part, the 20 pin supply connector is good enough.
>>>> The 20 pin connector has one 12V wire. The 24 pin
>>>> connector has two 12V wires. That increases the room
>>>> for current to flow, when something in the motherboard
>>>> needs more current. Some video cards draw 12V @ 4A through
>>>> the video slot, and when two of those cards are present,
>>>> and 8 amps is being called for while 3D gaming, that is
>>>> when the 24 pin power supply is a better choice for power.
>>>> Paul
>>> Thanks, well explained, but I hear there are also adapters, can those
>>> do the job for two pci-e video cards and a 480 watts power supply?

>> Say you have a 20 pin power supply. You pick up a 20 pin to 24
>> pin adapter cable. Then connect that cable to the 24 pin motherboard
>> header.
>>
>> That solves the problem of the current level at the motherboard 24 pin
>> connector. But it moves the problem back, to where the 20 pin power
>> supply meets the 20 pin adapter end. There is still only one 12V wire
>> at that point, and still a possibility that the single pin will overheat
>> if there are two video cards in SLI.
>>
>> As for power supply ratings, not only the total watts count, but the
>> 12V @ xx amps rating is important too. The major consumers in modern
>> systems are the processor (runs off +12) and the video cards (also
>> draw most of their current from +12). Xbitlabs has measured a few cards,
>> which is where I get most of my video card info. Processorfinder.intel.com
>> gives me power numbers for their processors.www.amdcompare.comcan be
>> used for AMD processor power numbers.
>>
>> There were some cheap 500W power supplies maybe three or four years ago,
>> that had extremely weak 12V outputs (not enough to run even a puny P4 based
>> system). Thus the 500W number by itself, is not proof of performance. The
>> individual rail ratings count too.
>>
>> Paul

>
> you have to help me Paul, I don't know what's going!!!
> I found out that my old computer was working perfeclty, that the
> problem was only my PSU, because it's not working on any other
> computers I tried and my old computer IS working with other power
> supplies I tried.
>
> So now it seems I have paid for a new computer for nothing and that
> all I needed was a new PSU.
>
> However, before I knew that, I plugged my Old PSU in my new computer,
> wich is composed of:
> Motherboard: Asus P5KC (has 4 DDR2 slots, 2 DDR3 slots, a 775 Socket,
> two PCIe x16 slots a 24 pin power input)
> Processor: Intel Core 2 Quad 1066 FSB, 2.4 GHz
> Memory: 4 chips of 512MB DDR2
> Graphics: RADEON X1650 Pro 512MB PCIe
>
> And tried it a couple of times, but nothing was working (of course, my
> old PSU was broken and I didn't knew it yet!)
>
> After I figured out the problem was my PSU, I tried a new one from the
> store with 24 pins power for the motherboard, a StarTech AP-500S12V of
> 450W with these voltage outputs:
> +3.3V: 30A
> +5V: 45A
> +12V1: 17A
> And these current outputs:
> +12V2: 16A
> -12V: 1A
> +5Vsb: 2.5A
> But my new computer is still not working dammit!! The monitor shows
> "No signal". Even if put the motherboard out of the case with only one
> memory chip, the cpu and the graphics card and try to power up.
> Is it because trying to power up with my old PSU fried the
> motherboard, since it was only 20-pins power and it was broken?
> Is it because the new power supply still is not powerful enough?
> Is it because I have to do something special with the motherboard like
> telling which PCIe slot to use, wich memory slots to use, wich kind of
> processor is in the CPU between a P4, a dual core or a quad core?
> There is no jumper settings in the Asus Manual and it's not saying
> anything special about the quad cores, only that it can take them.
>
> I also tried my brother's CPU, a socket 775 Pentium 4 and also tried
> changing the memory chip for any other of the 4 I had, but it's still
> not showing any display.
>
> Please help me, I'm tired of this. I think I'll try to return my
> motherboard for a new one, I'm pretty sure it is a default, but it
> could also be the CPU, I don't have a computer to try it on and I
> accidentally touched the region under the processor where the pins are
> and where the manual says not to touch.
>
> thanks again,
>
> Marco
>


Return the motherboard and get another one.
Use only the new power supply on the replacement you get.

Power supplies can be tested with a multimeter, especially while
they are still connected to the old system. I've got several
multimeters, and I even have a home made load box, for putting a
load of around 100W or so, on the PSU. By using the load box,
I don't have to endanger a motherboard, until I've verified the
voltage readings. It is too bad nobody makes a simple thing
like that for hobbyist usage.

As for cleaning a processor, I don't really know what is
"safe and effective". On the one hand, rubbing alcohol will not
hurt anything, and could be applied to the contact area. But
in terms of tissues or paper towels to aid in the cleaning
process, those could leave residue (fibers) behind. Because
of that fact, and the fact that the rubbing alcohol could
leave impurities behind, I'd just leave it alone.

Unless you can see foreign matter (something that blocks the
contacts) and it is just a bit of fingerprint grease, I'd
rely on the contacts in the socket of the new motherboard,
to make contact. It is too hard to control cleaning conditions,
to do a good job without making things worse. A lot of
household chemicals are not really pure enough for this
kind of thing.

To test that, find a clear hard surface, that offers
good visual contrast. Pour a little rubbing alcohol on
it. Allow the rubbing alcohol to dry. Did it leave a
stain or drying marks behind ? That is what I'd be worried
about.

And don't use anything stronger than alcohol. Acetone, for
example, can dissolve things, and may not be compatible with
how the processor is constructed.

These are some instructions at Intel:

http://www.intel.com/cd/channel/rese...ech/188115.htm

"Scan the processor package gold pad array for presence of foreign
material. If necessary, the gold pads can be wiped cleaned with
a soft lint free cloth and isopropyl alcohol (IPA)."

Use your best judgment, as to whether you think you can do
a good job or not.

Paul
  Reply With Quote
Old 09-11-2007, 08:41 PM   #18
dropzone@cgocable.ca
Guest
 
Posts: n/a
Re: Flash bios without CPU

On Nov 8, 10:44 pm, Paul <nos...@needed.com> wrote:
> dropz...@cgocable.ca wrote:
> > On Oct 27, 12:38 pm, Paul <nos...@needed.com> wrote:
> >> dropz...@cgocable.ca wrote:
> >>> On Oct 26, 6:44 pm, Paul <nos...@needed.com> wrote:
> >>>> dropz...@cgocable.ca wrote:
> >>>>> Forget it, found out it's ok, thanks everyone!
> >>>> Yup, it's OK to put a 20 pin in a 24 pin hole.
> >>>> Pin 1 goes to pin 1, leaving four empty pins bunched
> >>>> at one end of the connector. The "shape" of the
> >>>> nylon shells, helps check the alignment of the
> >>>> proper pins.
> >>>> Using a 24 pin connector, is more important if you are
> >>>> installing two PCI Express video cards. If only
> >>>> one PCI Express video card is present, then for the
> >>>> most part, the 20 pin supply connector is good enough.
> >>>> The 20 pin connector has one 12V wire. The 24 pin
> >>>> connector has two 12V wires. That increases the room
> >>>> for current to flow, when something in the motherboard
> >>>> needs more current. Some video cards draw 12V @ 4A through
> >>>> the video slot, and when two of those cards are present,
> >>>> and 8 amps is being called for while 3D gaming, that is
> >>>> when the 24 pin power supply is a better choice for power.
> >>>> Paul
> >>> Thanks, well explained, but I hear there are also adapters, can those
> >>> do the job for two pci-e video cards and a 480 watts power supply?
> >> Say you have a 20 pin power supply. You pick up a 20 pin to 24
> >> pin adapter cable. Then connect that cable to the 24 pin motherboard
> >> header.

>
> >> That solves the problem of the current level at the motherboard 24 pin
> >> connector. But it moves the problem back, to where the 20 pin power
> >> supply meets the 20 pin adapter end. There is still only one 12V wire
> >> at that point, and still a possibility that the single pin will overheat
> >> if there are two video cards in SLI.

>
> >> As for power supply ratings, not only the total watts count, but the
> >> 12V @ xx amps rating is important too. The major consumers in modern
> >> systems are the processor (runs off +12) and the video cards (also
> >> draw most of their current from +12). Xbitlabs has measured a few cards,
> >> which is where I get most of my video card info. Processorfinder.intel.com
> >> gives me power numbers for their processors.www.amdcompare.comcanbe
> >> used for AMD processor power numbers.

>
> >> There were some cheap 500W power supplies maybe three or four years ago,
> >> that had extremely weak 12V outputs (not enough to run even a puny P4 based
> >> system). Thus the 500W number by itself, is not proof of performance. The
> >> individual rail ratings count too.

>
> >> Paul

>
> > On Oct 27, 12:38 pm, Paul <nos...@needed.com> wrote:
> >> dropz...@cgocable.ca wrote:
> >>> On Oct 26, 6:44 pm, Paul <nos...@needed.com> wrote:
> >>>> dropz...@cgocable.ca wrote:
> >>>>> Forget it, found out it's ok, thanks everyone!
> >>>> Yup, it's OK to put a 20 pin in a 24 pin hole.
> >>>> Pin 1 goes to pin 1, leaving four empty pins bunched
> >>>> at one end of the connector. The "shape" of the
> >>>> nylon shells, helps check the alignment of the
> >>>> proper pins.
> >>>> Using a 24 pin connector, is more important if you are
> >>>> installing two PCI Express video cards. If only
> >>>> one PCI Express video card is present, then for the
> >>>> most part, the 20 pin supply connector is good enough.
> >>>> The 20 pin connector has one 12V wire. The 24 pin
> >>>> connector has two 12V wires. That increases the room
> >>>> for current to flow, when something in the motherboard
> >>>> needs more current. Some video cards draw 12V @ 4A through
> >>>> the video slot, and when two of those cards are present,
> >>>> and 8 amps is being called for while 3D gaming, that is
> >>>> when the 24 pin power supply is a better choice for power.
> >>>> Paul
> >>> Thanks, well explained, but I hear there are also adapters, can those
> >>> do the job for two pci-e video cards and a 480 watts power supply?
> >> Say you have a 20 pin power supply. You pick up a 20 pin to 24
> >> pin adapter cable. Then connect that cable to the 24 pin motherboard
> >> header.

>
> >> That solves the problem of the current level at the motherboard 24 pin
> >> connector. But it moves the problem back, to where the 20 pin power
> >> supply meets the 20 pin adapter end. There is still only one 12V wire
> >> at that point, and still a possibility that the single pin will overheat
> >> if there are two video cards in SLI.

>
> >> As for power supply ratings, not only the total watts count, but the
> >> 12V @ xx amps rating is important too. The major consumers in modern
> >> systems are the processor (runs off +12) and the video cards (also
> >> draw most of their current from +12). Xbitlabs has measured a few cards,
> >> which is where I get most of my video card info. Processorfinder.intel.com
> >> gives me power numbers for their processors.www.amdcompare.comcanbe
> >> used for AMD processor power numbers.

>
> >> There were some cheap 500W power supplies maybe three or four years ago,
> >> that had extremely weak 12V outputs (not enough to run even a puny P4 based
> >> system). Thus the 500W number by itself, is not proof of performance. The
> >> individual rail ratings count too.

>
> >> Paul

>
> > you have to help me Paul, I don't know what's going!!!
> > I found out that my old computer was working perfeclty, that the
> > problem was only my PSU, because it's not working on any other
> > computers I tried and my old computer IS working with other power
> > supplies I tried.

>
> > So now it seems I have paid for a new computer for nothing and that
> > all I needed was a new PSU.

>
> > However, before I knew that, I plugged my Old PSU in my new computer,
> > wich is composed of:
> > Motherboard: Asus P5KC (has 4 DDR2 slots, 2 DDR3 slots, a 775 Socket,
> > two PCIe x16 slots a 24 pin power input)
> > Processor: Intel Core 2 Quad 1066 FSB, 2.4 GHz
> > Memory: 4 chips of 512MB DDR2
> > Graphics: RADEON X1650 Pro 512MB PCIe

>
> > And tried it a couple of times, but nothing was working (of course, my
> > old PSU was broken and I didn't knew it yet!)

>
> > After I figured out the problem was my PSU, I tried a new one from the
> > store with 24 pins power for the motherboard, a StarTech AP-500S12V of
> > 450W with these voltage outputs:
> > +3.3V: 30A
> > +5V: 45A
> > +12V1: 17A
> > And these current outputs:
> > +12V2: 16A
> > -12V: 1A
> > +5Vsb: 2.5A
> > But my new computer is still not working dammit!! The monitor shows
> > "No signal". Even if put the motherboard out of the case with only one
> > memory chip, the cpu and the graphics card and try to power up.
> > Is it because trying to power up with my old PSU fried the
> > motherboard, since it was only 20-pins power and it was broken?
> > Is it because the new power supply still is not powerful enough?
> > Is it because I have to do something special with the motherboard like
> > telling which PCIe slot to use, wich memory slots to use, wich kind of
> > processor is in the CPU between a P4, a dual core or a quad core?
> > There is no jumper settings in the Asus Manual and it's not saying
> > anything special about the quad cores, only that it can take them.

>
> > I also tried my brother's CPU, a socket 775 Pentium 4 and also tried
> > changing the memory chip for any other of the 4 I had, but it's still
> > not showing any display.

>
> > Please help me, I'm tired of this. I think I'll try to return my
> > motherboard for a new one, I'm pretty sure it is a default, but it
> > could also be the CPU, I don't have a computer to try it on and I
> > accidentally touched the region under the processor where the pins are
> > and where the manual says not to touch.

>
> > thanks again,

>
> > Marco

>
> Return the motherboard and get another one.
> Use only the new power supply on the replacement you get.
>
> Power supplies can be tested with a multimeter, especially while
> they are still connected to the old system. I've got several
> multimeters, and I even have a home made load box, for putting a
> load of around 100W or so, on the PSU. By using the load box,
> I don't have to endanger a motherboard, until I've verified the
> voltage readings. It is too bad nobody makes a simple thing
> like that for hobbyist usage.
>
> As for cleaning a processor, I don't really know what is
> "safe and effective". On the one hand, rubbing alcohol will not
> hurt anything, and could be applied to the contact area. But
> in terms of tissues or paper towels to aid in the cleaning
> process, those could leave residue (fibers) behind. Because
> of that fact, and the fact that the rubbing alcohol could
> leave impurities behind, I'd just leave it alone.
>
> Unless you can see foreign matter (something that blocks the
> contacts) and it is just a bit of fingerprint grease, I'd
> rely on the contacts in the socket of the new motherboard,
> to make contact. It is too hard to control cleaning conditions,
> to do a good job without making things worse. A lot of
> household chemicals are not really pure enough for this
> kind of thing.
>
> To test that, find a clear hard surface, that offers
> good visual contrast. Pour a little rubbing alcohol on
> it. Allow the rubbing alcohol to dry. Did it leave a
> stain or drying marks behind ? That is what I'd be worried
> about.
>
> And don't use anything stronger than alcohol. Acetone, for
> example, can dissolve things, and may not be compatible with
> how the processor is constructed.
>
> These are some instructions at Intel:
>
> http://www.intel.com/cd/channel/rese...oducts/desktop...
>
> "Scan the processor package gold pad array for presence of foreign
> material. If necessary, the gold pads can be wiped cleaned with
> a soft lint free cloth and isopropyl alcohol (IPA)."
>
> Use your best judgment, as to whether you think you can do
> a good job or not.
>
> Paul


Hey Paul, thanks for the advice, I've retruned my motherboard, but
they sent it back to Asus in California so I have to wait a week or
more to have it back (or a new one). I'll see then what's going on.

In the meanwhile, thanks again!

Marco

  Reply With Quote
Old 08-12-2007, 05:53 AM   #19
dropzone@cgocable.ca
Guest
 
Posts: n/a
Re: Flash bios without CPU

On Nov 8, 10:44 pm, Paul <nos...@needed.com> wrote:
> dropz...@cgocable.ca wrote:
> > On Oct 27, 12:38 pm, Paul <nos...@needed.com> wrote:
> >> dropz...@cgocable.ca wrote:
> >>> On Oct 26, 6:44 pm, Paul <nos...@needed.com> wrote:
> >>>> dropz...@cgocable.ca wrote:
> >>>>> Forget it, found out it's ok, thanks everyone!
> >>>> Yup, it's OK to put a 20 pin in a 24 pin hole.
> >>>> Pin 1 goes to pin 1, leaving four empty pins bunched
> >>>> at one end of the connector. The "shape" of the
> >>>> nylon shells, helps check the alignment of the
> >>>> proper pins.
> >>>> Using a 24 pin connector, is more important if you are
> >>>> installing two PCI Express video cards. If only
> >>>> one PCI Express video card is present, then for the
> >>>> most part, the 20 pin supply connector is good enough.
> >>>> The 20 pin connector has one 12V wire. The 24 pin
> >>>> connector has two 12V wires. That increases the room
> >>>> for current to flow, when something in the motherboard
> >>>> needs more current. Some video cards draw 12V @ 4A through
> >>>> the video slot, and when two of those cards are present,
> >>>> and 8 amps is being called for while 3D gaming, that is
> >>>> when the 24 pin power supply is a better choice for power.
> >>>> Paul
> >>> Thanks, well explained, but I hear there are also adapters, can those
> >>> do the job for two pci-e video cards and a 480 watts power supply?
> >> Say you have a 20 pin power supply. You pick up a 20 pin to 24
> >> pin adapter cable. Then connect that cable to the 24 pin motherboard
> >> header.

>
> >> That solves the problem of the current level at the motherboard 24 pin
> >> connector. But it moves the problem back, to where the 20 pin power
> >> supply meets the 20 pin adapter end. There is still only one 12V wire
> >> at that point, and still a possibility that the single pin will overheat
> >> if there are two video cards in SLI.

>
> >> As for power supply ratings, not only the total watts count, but the
> >> 12V @ xx amps rating is important too. The major consumers in modern
> >> systems are the processor (runs off +12) and the video cards (also
> >> draw most of their current from +12). Xbitlabs has measured a few cards,
> >> which is where I get most of my video card info. Processorfinder.intel.com
> >> gives me power numbers for their processors.www.amdcompare.comcanbe
> >> used for AMD processor power numbers.

>
> >> There were some cheap 500W power supplies maybe three or four years ago,
> >> that had extremely weak 12V outputs (not enough to run even a puny P4 based
> >> system). Thus the 500W number by itself, is not proof of performance. The
> >> individual rail ratings count too.

>
> >> Paul

>
> > On Oct 27, 12:38 pm, Paul <nos...@needed.com> wrote:
> >> dropz...@cgocable.ca wrote:
> >>> On Oct 26, 6:44 pm, Paul <nos...@needed.com> wrote:
> >>>> dropz...@cgocable.ca wrote:
> >>>>> Forget it, found out it's ok, thanks everyone!
> >>>> Yup, it's OK to put a 20 pin in a 24 pin hole.
> >>>> Pin 1 goes to pin 1, leaving four empty pins bunched
> >>>> at one end of the connector. The "shape" of the
> >>>> nylon shells, helps check the alignment of the
> >>>> proper pins.
> >>>> Using a 24 pin connector, is more important if you are
> >>>> installing two PCI Express video cards. If only
> >>>> one PCI Express video card is present, then for the
> >>>> most part, the 20 pin supply connector is good enough.
> >>>> The 20 pin connector has one 12V wire. The 24 pin
> >>>> connector has two 12V wires. That increases the room
> >>>> for current to flow, when something in the motherboard
> >>>> needs more current. Some video cards draw 12V @ 4A through
> >>>> the video slot, and when two of those cards are present,
> >>>> and 8 amps is being called for while 3D gaming, that is
> >>>> when the 24 pin power supply is a better choice for power.
> >>>> Paul
> >>> Thanks, well explained, but I hear there are also adapters, can those
> >>> do the job for two pci-e video cards and a 480 watts power supply?
> >> Say you have a 20 pin power supply. You pick up a 20 pin to 24
> >> pin adapter cable. Then connect that cable to the 24 pin motherboard
> >> header.

>
> >> That solves the problem of the current level at the motherboard 24 pin
> >> connector. But it moves the problem back, to where the 20 pin power
> >> supply meets the 20 pin adapter end. There is still only one 12V wire
> >> at that point, and still a possibility that the single pin will overheat
> >> if there are two video cards in SLI.

>
> >> As for power supply ratings, not only the total watts count, but the
> >> 12V @ xx amps rating is important too. The major consumers in modern
> >> systems are the processor (runs off +12) and the video cards (also
> >> draw most of their current from +12). Xbitlabs has measured a few cards,
> >> which is where I get most of my video card info. Processorfinder.intel.com
> >> gives me power numbers for their processors.www.amdcompare.comcanbe
> >> used for AMD processor power numbers.

>
> >> There were some cheap 500W power supplies maybe three or four years ago,
> >> that had extremely weak 12V outputs (not enough to run even a puny P4 based
> >> system). Thus the 500W number by itself, is not proof of performance. The
> >> individual rail ratings count too.

>
> >> Paul

>
> > you have to help me Paul, I don't know what's going!!!
> > I found out that my old computer was working perfeclty, that the
> > problem was only my PSU, because it's not working on any other
> > computers I tried and my old computer IS working with other power
> > supplies I tried.

>
> > So now it seems I have paid for a new computer for nothing and that
> > all I needed was a new PSU.

>
> > However, before I knew that, I plugged my Old PSU in my new computer,
> > wich is composed of:
> > Motherboard: Asus P5KC (has 4 DDR2 slots, 2 DDR3 slots, a 775 Socket,
> > two PCIe x16 slots a 24 pin power input)
> > Processor: Intel Core 2 Quad 1066 FSB, 2.4 GHz
> > Memory: 4 chips of 512MB DDR2
> > Graphics: RADEON X1650 Pro 512MB PCIe

>
> > And tried it a couple of times, but nothing was working (of course, my
> > old PSU was broken and I didn't knew it yet!)

>
> > After I figured out the problem was my PSU, I tried a new one from the
> > store with 24 pins power for the motherboard, a StarTech AP-500S12V of
> > 450W with these voltage outputs:
> > +3.3V: 30A
> > +5V: 45A
> > +12V1: 17A
> > And these current outputs:
> > +12V2: 16A
> > -12V: 1A
> > +5Vsb: 2.5A
> > But my new computer is still not working dammit!! The monitor shows
> > "No signal". Even if put the motherboard out of the case with only one
> > memory chip, the cpu and the graphics card and try to power up.
> > Is it because trying to power up with my old PSU fried the
> > motherboard, since it was only 20-pins power and it was broken?
> > Is it because the new power supply still is not powerful enough?
> > Is it because I have to do something special with the motherboard like
> > telling which PCIe slot to use, wich memory slots to use, wich kind of
> > processor is in the CPU between a P4, a dual core or a quad core?
> > There is no jumper settings in the Asus Manual and it's not saying
> > anything special about the quad cores, only that it can take them.

>
> > I also tried my brother's CPU, a socket 775 Pentium 4 and also tried
> > changing the memory chip for any other of the 4 I had, but it's still
> > not showing any display.

>
> > Please help me, I'm tired of this. I think I'll try to return my
> > motherboard for a new one, I'm pretty sure it is a default, but it
> > could also be the CPU, I don't have a computer to try it on and I
> > accidentally touched the region under the processor where the pins are
> > and where the manual says not to touch.

>
> > thanks again,

>
> > Marco

>
> Return the motherboard and get another one.
> Use only the new power supply on the replacement you get.
>
> Power supplies can be tested with a multimeter, especially while
> they are still connected to the old system. I've got several
> multimeters, and I even have a home made load box, for putting a
> load of around 100W or so, on the PSU. By using the load box,
> I don't have to endanger a motherboard, until I've verified the
> voltage readings. It is too bad nobody makes a simple thing
> like that for hobbyist usage.
>
> As for cleaning a processor, I don't really know what is
> "safe and effective". On the one hand, rubbing alcohol will not
> hurt anything, and could be applied to the contact area. But
> in terms of tissues or paper towels to aid in the cleaning
> process, those could leave residue (fibers) behind. Because
> of that fact, and the fact that the rubbing alcohol could
> leave impurities behind, I'd just leave it alone.
>
> Unless you can see foreign matter (something that blocks the
> contacts) and it is just a bit of fingerprint grease, I'd
> rely on the contacts in the socket of the new motherboard,
> to make contact. It is too hard to control cleaning conditions,
> to do a good job without making things worse. A lot of
> household chemicals are not really pure enough for this
> kind of thing.
>
> To test that, find a clear hard surface, that offers
> good visual contrast. Pour a little rubbing alcohol on
> it. Allow the rubbing alcohol to dry. Did it leave a
> stain or drying marks behind ? That is what I'd be worried
> about.
>
> And don't use anything stronger than alcohol. Acetone, for
> example, can dissolve things, and may not be compatible with
> how the processor is constructed.
>
> These are some instructions at Intel:
>
> http://www.intel.com/cd/channel/rese...oducts/desktop...
>
> "Scan the processor package gold pad array for presence of foreign
> material. If necessary, the gold pads can be wiped cleaned with
> a soft lint free cloth and isopropyl alcohol (IPA)."
>
> Use your best judgment, as to whether you think you can do
> a good job or not.
>
> Paul


Hi Paul,

I've just received my motherboard returned from the store, who got it
from Asus RMA service. I tried putting on the CPU, the graphics and
one memory chip and still got no display at all, absolutely nothing,
no clue. I've been waiting for a month for my motherboard and it
wasn't the problem.. I'm really getting tired of this. Do you have ANY
idea at all?

thanks

Marco
  Reply With Quote
Old 08-12-2007, 05:54 AM   #20
dropzone@cgocable.ca
Guest
 
Posts: n/a
Re: Flash bios without CPU

On Dec 5, 11:50 pm, dropz...@cgocable.ca wrote:
> On Nov 8, 10:44 pm, Paul <nos...@needed.com> wrote:
>
>
>
> > dropz...@cgocable.ca wrote:
> > > On Oct 27, 12:38 pm, Paul <nos...@needed.com> wrote:
> > >> dropz...@cgocable.ca wrote:
> > >>> On Oct 26, 6:44 pm, Paul <nos...@needed.com> wrote:
> > >>>> dropz...@cgocable.ca wrote:
> > >>>>> Forget it, found out it's ok, thanks everyone!
> > >>>> Yup, it's OK to put a 20 pin in a 24 pin hole.
> > >>>> Pin 1 goes to pin 1, leaving four empty pins bunched
> > >>>> at one end of the connector. The "shape" of the
> > >>>> nylon shells, helps check the alignment of the
> > >>>> proper pins.
> > >>>> Using a 24 pin connector, is more important if you are
> > >>>> installing two PCI Express video cards. If only
> > >>>> one PCI Express video card is present, then for the
> > >>>> most part, the 20 pin supply connector is good enough.
> > >>>> The 20 pin connector has one 12V wire. The 24 pin
> > >>>> connector has two 12V wires. That increases the room
> > >>>> for current to flow, when something in the motherboard
> > >>>> needs more current. Some video cards draw 12V @ 4A through
> > >>>> the video slot, and when two of those cards are present,
> > >>>> and 8 amps is being called for while 3D gaming, that is
> > >>>> when the 24 pin power supply is a better choice for power.
> > >>>> Paul
> > >>> Thanks, well explained, but I hear there are also adapters, can those
> > >>> do the job for two pci-e video cards and a 480 watts power supply?
> > >> Say you have a 20 pin power supply. You pick up a 20 pin to 24
> > >> pin adapter cable. Then connect that cable to the 24 pin motherboard
> > >> header.

>
> > >> That solves the problem of the current level at the motherboard 24 pin
> > >> connector. But it moves the problem back, to where the 20 pin power
> > >> supply meets the 20 pin adapter end. There is still only one 12V wire
> > >> at that point, and still a possibility that the single pin will overheat
> > >> if there are two video cards in SLI.

>
> > >> As for power supply ratings, not only the total watts count, but the
> > >> 12V @ xx amps rating is important too. The major consumers in modern
> > >> systems are the processor (runs off +12) and the video cards (also
> > >> draw most of their current from +12). Xbitlabs has measured a few cards,
> > >> which is where I get most of my video card info. Processorfinder.intel.com
> > >> gives me power numbers for their processors.www.amdcompare.comcanbe
> > >> used for AMD processor power numbers.

>
> > >> There were some cheap 500W power supplies maybe three or four years ago,
> > >> that had extremely weak 12V outputs (not enough to run even a puny P4 based
> > >> system). Thus the 500W number by itself, is not proof of performance. The
> > >> individual rail ratings count too.

>
> > >> Paul

>
> > > On Oct 27, 12:38 pm, Paul <nos...@needed.com> wrote:
> > >> dropz...@cgocable.ca wrote:
> > >>> On Oct 26, 6:44 pm, Paul <nos...@needed.com> wrote:
> > >>>> dropz...@cgocable.ca wrote:
> > >>>>> Forget it, found out it's ok, thanks everyone!
> > >>>> Yup, it's OK to put a 20 pin in a 24 pin hole.
> > >>>> Pin 1 goes to pin 1, leaving four empty pins bunched
> > >>>> at one end of the connector. The "shape" of the
> > >>>> nylon shells, helps check the alignment of the
> > >>>> proper pins.
> > >>>> Using a 24 pin connector, is more important if you are
> > >>>> installing two PCI Express video cards. If only
> > >>>> one PCI Express video card is present, then for the
> > >>>> most part, the 20 pin supply connector is good enough.
> > >>>> The 20 pin connector has one 12V wire. The 24 pin
> > >>>> connector has two 12V wires. That increases the room
> > >>>> for current to flow, when something in the motherboard
> > >>>> needs more current. Some video cards draw 12V @ 4A through
> > >>>> the video slot, and when two of those cards are present,
> > >>>> and 8 amps is being called for while 3D gaming, that is
> > >>>> when the 24 pin power supply is a better choice for power.
> > >>>> Paul
> > >>> Thanks, well explained, but I hear there are also adapters, can those
> > >>> do the job for two pci-e video cards and a 480 watts power supply?
> > >> Say you have a 20 pin power supply. You pick up a 20 pin to 24
> > >> pin adapter cable. Then connect that cable to the 24 pin motherboard
> > >> header.

>
> > >> That solves the problem of the current level at the motherboard 24 pin
> > >> connector. But it moves the problem back, to where the 20 pin power
> > >> supply meets the 20 pin adapter end. There is still only one 12V wire
> > >> at that point, and still a possibility that the single pin will overheat
> > >> if there are two video cards in SLI.

>
> > >> As for power supply ratings, not only the total watts count, but the
> > >> 12V @ xx amps rating is important too. The major consumers in modern
> > >> systems are the processor (runs off +12) and the video cards (also
> > >> draw most of their current from +12). Xbitlabs has measured a few cards,
> > >> which is where I get most of my video card info. Processorfinder.intel.com
> > >> gives me power numbers for their processors.www.amdcompare.comcanbe
> > >> used for AMD processor power numbers.

>
> > >> There were some cheap 500W power supplies maybe three or four years ago,
> > >> that had extremely weak 12V outputs (not enough to run even a puny P4 based
> > >> system). Thus the 500W number by itself, is not proof of performance. The
> > >> individual rail ratings count too.

>
> > >> Paul

>
> > > you have to help me Paul, I don't know what's going!!!
> > > I found out that my old computer was working perfeclty, that the
> > > problem was only my PSU, because it's not working on any other
> > > computers I tried and my old computer IS working with other power
> > > supplies I tried.

>
> > > So now it seems I have paid for a new computer for nothing and that
> > > all I needed was a new PSU.

>
> > > However, before I knew that, I plugged my Old PSU in my new computer,
> > > wich is composed of:
> > > Motherboard: Asus P5KC (has 4 DDR2 slots, 2 DDR3 slots, a 775 Socket,
> > > two PCIe x16 slots a 24 pin power input)
> > > Processor: Intel Core 2 Quad 1066 FSB, 2.4 GHz
> > > Memory: 4 chips of 512MB DDR2
> > > Graphics: RADEON X1650 Pro 512MB PCIe

>
> > > And tried it a couple of times, but nothing was working (of course, my
> > > old PSU was broken and I didn't knew it yet!)

>
> > > After I figured out the problem was my PSU, I tried a new one from the
> > > store with 24 pins power for the motherboard, a StarTech AP-500S12V of
> > > 450W with these voltage outputs:
> > > +3.3V: 30A
> > > +5V: 45A
> > > +12V1: 17A
> > > And these current outputs:
> > > +12V2: 16A
> > > -12V: 1A
> > > +5Vsb: 2.5A
> > > But my new computer is still not working dammit!! The monitor shows
> > > "No signal". Even if put the motherboard out of the case with only one
> > > memory chip, the cpu and the graphics card and try to power up.
> > > Is it because trying to power up with my old PSU fried the
> > > motherboard, since it was only 20-pins power and it was broken?
> > > Is it because the new power supply still is not powerful enough?
> > > Is it because I have to do something special with the motherboard like
> > > telling which PCIe slot to use, wich memory slots to use, wich kind of
> > > processor is in the CPU between a P4, a dual core or a quad core?
> > > There is no jumper settings in the Asus Manual and it's not saying
> > > anything special about the quad cores, only that it can take them.

>
> > > I also tried my brother's CPU, a socket 775 Pentium 4 and also tried
> > > changing the memory chip for any other of the 4 I had, but it's still
> > > not showing any display.

>
> > > Please help me, I'm tired of this. I think I'll try to return my
> > > motherboard for a new one, I'm pretty sure it is a default, but it
> > > could also be the CPU, I don't have a computer to try it on and I
> > > accidentally touched the region under the processor where the pins are
> > > and where the manual says not to touch.

>
> > > thanks again,

>
> > > Marco

>
> > Return the motherboard and get another one.
> > Use only the new power supply on the replacement you get.

>
> > Power supplies can be tested with a multimeter, especially while
> > they are still connected to the old system. I've got several
> > multimeters, and I even have a home made load box, for putting a
> > load of around 100W or so, on the PSU. By using the load box,
> > I don't have to endanger a motherboard, until I've verified the
> > voltage readings. It is too bad nobody makes a simple thing
> > like that for hobbyist usage.

>
> > As for cleaning a processor, I don't really know what is
> > "safe and effective". On the one hand, rubbing alcohol will not
> > hurt anything, and could be applied to the contact area. But
> > in terms of tissues or paper towels to aid in the cleaning
> > process, those could leave residue (fibers) behind. Because
> > of that fact, and the fact that the rubbing alcohol could
> > leave impurities behind, I'd just leave it alone.

>
> > Unless you can see foreign matter (something that blocks the
> > contacts) and it is just a bit of fingerprint grease, I'd
> > rely on the contacts in the socket of the new motherboard,
> > to make contact. It is too hard to control cleaning conditions,
> > to do a good job without making things worse. A lot of
> > household chemicals are not really pure enough for this
> > kind of thing.

>
> > To test that, find a clear hard surface, that offers
> > good visual contrast. Pour a little rubbing alcohol on
> > it. Allow the rubbing alcohol to dry. Did it leave a
> > stain or drying marks behind ? That is what I'd be worried
> > about.

>
> > And don't use anything stronger than alcohol. Acetone, for
> > example, can dissolve things, and may not be compatible with
> > how the processor is constructed.

>
> > These are some instructions at Intel:

>
> >http://www.intel.com/cd/channel/rese...oducts/desktop...

>
> > "Scan the processor package gold pad array for presence of foreign
> > material. If necessary, the gold pads can be wiped cleaned with
> > a soft lint free cloth and isopropyl alcohol (IPA)."

>
> > Use your best judgment, as to whether you think you can do
> > a good job or not.

>
> > Paul

>
> Hi Paul,
>
> I've just received ...
>
> read more >>


Oh and I forgot, I also tried removing the pcie video card and putting
an old pci video card. The pc speakers are also plugged and I hear no
beeps, and there is still no display... what the??
  Reply With Quote
Reply

Thread Tools
Display Modes


Google
 


All times are GMT +5.5. The time now is 03:36 AM.


vBulletin, Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO
Copyright © 2005-2008, TechTalkz.com. All Rights Reserved - Privacy Policy
Valid XHTML 1.0 Transitional