Computer getting no.......anything?

Falco40

So last week I went to turn on my computer and I didn't get any signal the monitor. I thought it might be the monitor or the cables so i went out bought new cables and tried a monitor i new worked and got the same thing. Then i noticed the mouse wasn't getting power, nor was the keyboard. I also noticed when i turn on the computer to try and figure it out, it will turn off, and then after a few seconds boot turn back on. The fans run and the power goes on but i get no beeps signifying it doing anything at all. I don't think it's the video card at this point but do i need a bigger power source or a new.....sigh motherboard? Thanks for any input! O i forgot to mention idk if it matters but it was custom built.

sychial

Pull all the RAM out and see if it beeps. If not then yeah, it's probably the board. It doesn't sound like a power supply issue, but since you say you need more power then it wouldn't hurt to get another PSU to see if it helps.