|Hi everyone, I'm looking for some expert confirmation of my own (perhaps flimsy) investigative conclusion. |
My system has been hanging while running both gaming and video applications. Games hang reliably at random intervals between 2 minutes and 1 hour. Video (VLC) doesn't always hang, and when it does it's completely random. I accuse the PSU, in the computer case, with the 3.3v rail! Let's see the cards...
XFX GeForce 9300 Intel 775 mobo
Intel C2D e6400 @stock 2.13ghz
2x 2gb Patriot DDR2-800
30GB OCZ Vertex SATA II ssd (OS drive)
2 x Samsung Spinpoint hdd's
Antec Neo HE430 psu
HWMonitor reports the 3.3v rail at a steady 2.18v, the -12v rail at steady -13.18v and the -5v rail at steady -8.70v, all other values fairly nominal. I don't have the know-how to confirm this with a voltmeter, and I know the onboard voltage monitor can be wrong, but this psu has been through fire smoke (6 months ago) and I've at least partly excluded a few other factors (listed below). I'm not confident about the motherboard (bought to replace my beloved, and smoke damaged, GA-E7AUM-DS2H) either, but I hope I'm just biased. Every test I try on the system, CPU GPU and memory, eventually hangs, but always before reporting any errors.
Excluded factors -
Not the ssd - installed same OS and apps onto a small partition on the newer hdd and the problem remains exactly the same.
Not strictly software - hangs occur even without background apps (avast, utorrent, and whatever system processes I can close) but closing those apps does seem to buy time.
Not a cooling issue - CPU tops out at 68C running OCCT cpu test (eventually hangs anyway), GPU hangs around 84C under OCCT but doesn't surpass mid 70's in gaming/video.
Probably not memory - Memtest86 + v4.10 ran 4 passes with no errors. The system hung 98% of the way through the fifth pass, still no errors, after 5 hours 21 minutes. I also moved both ram sticks into the next slots and keep experiencing the same issue.
I know this doesn't represent much of an investigation, I'm just not that experienced with serious trouble-shooting. Would replacing the PSU be a reasonable move, or are there more tests I should run first for more certainty?
Thanks a lot!