Been running 4GB (4x1GB, 2 packs) Crucial Ballistix Tracer PC2-8500 without issue for some time when recently I've noticed some strange goings-on with my PC - occasional and completely random total shutdowns (no BSOD, PC just powers off and then restarts seconds later) and lockups. Usually this has happened at totally bizarre intervals - sometimes when the CPU isn't really doing much work (e.g. watching Youtube videos).
Suspecting the memory was at fault I tried running Memtest only to find that it sortof locked up on Test #5 (but the + on the Memtest was still blinking?). I tried re-running it several times and it always locked up during Test #5 after 13 minutes of running. This morning I tried running it again and the PC just powered off and restarted during Test #5, the same behaviour as it does occasionally in Windows.
I was originally running the RAM at DDR800 (400Mhz) 1:1 4-4-4-12 timings (SPD is 5-5-5-15 I think, but for DDR1066) at 2.0v. I've tried 2.1v and 2.2v with no difference. I also tried 5-5-5-15 timings and whilst it got past Test #5 this time (a fluke?) after an hour or so of running Memtest reported 12 errors, so not a-ok.
Other pertinent voltages:
CPU vCore: 1.4750v
vMCH: 1.6v
vICH, vFSB: AUTO
Does Memtest stress the CPU at all? I don't think my CPU is unstable but I'm not 100% sure, but surely even if this was the case why would it always lockup on the same test? CPU is running at 4Ghz currently (400 x 10).
I know Crucial Ballistix is prone to failure - this is my 2nd set as it is - am planning to try each set (1+3, 2+4) seperately tonight but assuming these both check out on their own what else can I try?
Thanks in advance!
Suspecting the memory was at fault I tried running Memtest only to find that it sortof locked up on Test #5 (but the + on the Memtest was still blinking?). I tried re-running it several times and it always locked up during Test #5 after 13 minutes of running. This morning I tried running it again and the PC just powered off and restarted during Test #5, the same behaviour as it does occasionally in Windows.
I was originally running the RAM at DDR800 (400Mhz) 1:1 4-4-4-12 timings (SPD is 5-5-5-15 I think, but for DDR1066) at 2.0v. I've tried 2.1v and 2.2v with no difference. I also tried 5-5-5-15 timings and whilst it got past Test #5 this time (a fluke?) after an hour or so of running Memtest reported 12 errors, so not a-ok.
Other pertinent voltages:
CPU vCore: 1.4750v
vMCH: 1.6v
vICH, vFSB: AUTO
Does Memtest stress the CPU at all? I don't think my CPU is unstable but I'm not 100% sure, but surely even if this was the case why would it always lockup on the same test? CPU is running at 4Ghz currently (400 x 10).
I know Crucial Ballistix is prone to failure - this is my 2nd set as it is - am planning to try each set (1+3, 2+4) seperately tonight but assuming these both check out on their own what else can I try?
Thanks in advance!