ARRRG Antec Neo500HE

[ThyKingdomCome]

I recently assembled a new case.

SILVERSTONE SST-SG01
BFG Tech BFGR78256GTOC Geforce 7800GT 256MB GDDR3 PCI-E
CORSAIR XMS 2GB (2 x 1GB) 184-Pin DDR SDRAM DDR 400 (PC 3200) Update AMD Athlon 64 X2 4400+ Toledo 1GHz FSB Socket 939 Dual Core
BIOSTAR TForce6100-939 Socket 939 NVIDIA GeForce 6100 Micro ATX AMD
NEO500HE 500W Antec PSU

I value the silence of the neo500he rated at 18dB. I had trouble at first as I didn't put the Video on its own cable, but shared it with my dvd. (I thought). This caused my computer to reboot at high usage lvls during my warcraft playing. (no blue screen.. just blammo)
After correcting this and placing the video on its own cable, it seemed to be much more stable. Last night, it eventually arrived at a state of instablility and repeatedly creashed, but only after hours of gaming.
Heat seemingly was the 1st cuplprit, but i found that my cpu was at 42C and my video at 62C. I ran 3dmark06 in a loop test to stress the video card and system, but I could not get the computer to reboot.

This morning I used a MM to find that my starting and stable voltage points were. 11.83, 4.94, and 3.28 these were stable from boot, to stress, to power off. (sisoft claimed the 12v was at 11.23!!, and bios 11.58)

I am discouraged at the 12 v rail that it is low. I took the readings at the modular plugin point. Correspondingly, I found little change from the molex and ATX plugs.

QUESTION: What do you think could be my prob... should I change my PSU for a model that can actually produce a solid 12v rail at the psu? Is this even a problem that could cause my computer to be unstable??

Elso... what silent psu would be a better option should I change it out?
I was thinking of this one.. http://www.ultraproducts.com/product_gallery.php?cPath=61&pPath=407&productID=407#

Comments welcome.

[Know Nuttin]

Seasonic S12-500 or 600 if you want quiet.

[ThyKingdomCome]

Update. I now have a new silverstone 500w power supply.
As the Antecs were posting 11.82 rails, this one can post at 11.98 and stay in the 11.92+ range over entire stress tests. I have run memory tests that analyse the memory in depth, no errors.

The problem continues. Quite frankly it seems like heat. Although everything i can read.. video and cpu are at low temps. I play WoW and I get no boots early on in my gaming from fresh turn on of computer, however after a time, it happens more frequently. After it starts booting, it will continue over and over and over should I try to get back on. All temps (vid and cpu) are still in low temps.

I have re-installed the game. I have noticed that breifly during gameplay my screen will go black for a few seconds and come back. No boot happens from this. Later on, I get no recovery from this "black screen", just power off.

I am thinking it may be some component on the motherboard that is overheating. What can cause a computer to crash, no checkdisk when coming up, no bluescreen of death, or any other trace of what could be happening?

[ThyKingdomCome]

found the problem.

It was heat. The biostar motherboard has onboard video. If you put it to check the onboard 1st, before the pci-e, it will enable both. If the onboard video which is running at high speed and resolutions is allowed to run, it will overheat and crash the board.

Poor design of board bios. I selected "check pci-e 1st" and it now is stable.

I am kind of dissapointed no one was even willing to comment or take a stab at this problem.