Crashing - Voltage Question

[Texun]

My nephew has an Abit KX7-333 board, XP1700 (Pal), 2-256 DDR's, Burner, 2 HD's, RADEON 7500 and a sound card all under WinXP Pro. The PC has been together for about a month. Last week it started crashing and the crashes have become more frequent and now occur every few minutes. I can't get to the PC, it's 600 miles away but I had him read off the voltages.

Voltage \ Low - High
1.75v @ 1.76- 1.85
3.3v @ 3.49 - 3.5
5.0v @ 4.76 - 4.97
12v @ 12.46 - 12.71

CPU @ 49C

The PSU is a 350W - I don't remember the brand.

He says movement on the 5.0v is pretty active, changing about 0.2v every few seconds. BIOS and MBM show the same voltage swings.

It's all stock but the voltages look odd to me. Could this be the problem? He has reinstalled WinXP and a fresh update of Norton but the problem remains the same or worse.

 

[mechBgon]

I would get me a new high-quality PSU (Enermax, Antec, Sparkle Power) in the 350W+ range if the PSU turns out not to be a high-quality one already. He could also run Memtest86 to test the memory modules, and/or try one memory module at a time. Good luck Texun! 🙂

 

[RLNTEX]

mechBgon
Thanks for the info, I've tried MEMTEST and it found "0" errors (Ran for 3 hours with both sticks)
My uncle and I are leaning toward the fact it may be the PSU since windows isn't recording an application failure only a system error.
I tried removing one stick of mem. at a time and moved each one through all four sockets, same thing happened.
I rebuildt windows last Sunday and the pc was flauless for three days. It started crashing on the 8th, one time. Sometimes it reboots, sometimes it doesn't but it always gives me a error message.
After it's been idle for a while, It seams as though it crashes hardest when I launch something new; Video card maybe?