Sudden death of a ASUS P5GD1

[jmarriott]

I just built a mid-range gaming machine:

ASUS P5GD1
P4 3.0 (530J)
Corsair Valueselect 2x 512B
WD 80GB SATA
XFX 6600 PCIe 128MB
Generic 400W PS with 20-pin (ASUS recommends 24-pin)

It went together fine and ran OK for 2 days. Installed MoH Pacific Assault, played fine for a few hours last night. This morning was playing again - for much less time (15 mins) - and the machine died.

Symptoms:
MB light is ON, Case power light flashes on when PWR first pressed, then goes out.
Tried switching the RAM, removing processor, etc. NO POST BEEPS, no fan activity.

I'm not even sure it's the MB...why did it run OK and then die? Temps in BIOS and ASUS probe seemed fine.

Next step will be ASUS tech, but i wanted to check here first.

 

[Ronin13]

First, make sure that the 4-pin ATX +12V power plug is connected.

Also, check the rating for your PSU. ASUS states that it has to provide at least 15A on the +12V rail if it only has a 20-pin power plug, like the one you're using.

Here's a question of my own:

Will a 20 to 24-pin adapter help the board get the extra power it needs (in the case where the PSU doesn't supply enough power through the 20-pin connector)?