Lockup Problems

BigDom · 24 Jan 2008 at 13:36

Hoping you guys can help me trace the cause of an intermittent.. but several times a day.. problem.. namely complete lockups.

I've re-installed XP, cleaned/reseated inside so ruled out those.

She's not overclocked.

X2 3800+
HD3850 ATI
2gig Geil Ram
SATA HDD
Running on 939 so DDR1 not AM2.

Been running fine for 2 years, started to lockup in the last couple of months.

Memtest seems to show clear, no faults with HDD..

I'm worried we're looking at the mobo or cpu but bit rusty of what's available to try to eliminate those two because if it is them then I'm obviously facing replacing ram/cpu/cooler/mobo - unless I can find a 939 mobo.

Any help would be appreciated - thanks.

BigDom · 24 Jan 2008 at 14:07

Mobo's way out of warranty ( over 2 years old ) afaik and the PSU is very decent

Tagan 430 Modular.

BigDom · 24 Jan 2008 at 20:40

PSU I'm sure isn't the fault. The randomness of the problem and fact I've reduced load recently ( HD3850 using less power than the X1800XT ) would seem to discount that. PSU is also a quality device so whilst it's power may look low on paper it's rails are generally strong.

CPU only test ran for 30 mins no problems.

Running a blend test at the moment.

BigDom · 24 Jan 2008 at 22:00

No errors in those tests.

BigDom · 25 Jan 2008 at 07:27

postmanfw said:
Another vote for psu if random lockups during non load situations.

Quality psu true but try a diff one just to be sure and rule it out 100%

Bleh - *hates swapping/testing PSU's - pain in the butt*

BigDom · 25 Jan 2008 at 08:14

Before worrying about actually changing PSU's Figured I'd fire up PC Probe.

Without any 3D stuff running she's reporting voltages all solid :-
1.33 vcore
3.38
5.25
12.04
CPU 44degC
MB 28degC

Firing up POTBS see's them not really change at all (5v drops abou 0.1v if that). Even CPU only warms up a little.