Motherboard won't power up

[apemanttt]

Hi, I have a KR7A-133 motherboard and recently had a failed video card so I took my computer apart and RMA'ed the video card. Now, I'm putting my computer back together (which I initially built myself) and whenever I turn the power on, I get the red, yellow, and orange lights to stay lit, and nothing boots up. If it helps, the fan on the motherboard also isn't starting, but the CPU's fan is running fine.

I returned the video card to ATI and they sent it back saying it was fixed so that shouldn't be the problem. I also know the harddrive and RAM are working, and the power supply is more than sufficient with 400 watts.


Does anyone have any ideas what the problem could be?

 

[apemanttt]

Bump

 

[Zepper]

FYI: ATF doesn't allow bumping that close together...

Boilerplate-01:
. Common causes of failure to boot (no video, no beeps) assuming PSU isn't totally dead:
1- RAM, CPU and/or AGP video card not seated properly, a bent pin or corrosion.
2- Drive data cable on upside down or only on half the pins or shifted a pin or two (usually Floppy or Zip drives).
3- CMOS needs to be cleared (AC power must usually be disconnected or . attempts to clear CMOS may fail) Unless your mobo does not use a power-off CMOS clear - check your mobo manual for specific info.
4- On some new mobos there is a CPU protection feature (esp. on Asus/Asrock Athlon/Socket A mobos) that will not allow the system to start if there is no fan (or a fan without a working speed sensor wire) connected to the fan power connector on the mobo (specifically marked "CPU Fan"). If you tried to start your machine without a fan properly connected, you have to attach a proper and working fan and clear the CMOS before it will boot.
.bh.

 

[apemanttt]

Thanks a lot... I'll try all of these.