Memtest errors - please help :-)

[Baldrick1001]

I decided to check my daughters PC for memory errors - for no good reason other than I like to ensure that everything is working optimally. Unfortunately I did get an error on the fourth full scan on test 7 @ 279.5M.

The PC was/Is

Q6600 - with acrtic cooler 7 rev 2
4 gig of integral DDR2 ram operating @ 1.8V @ 6-6-6-22
640 gig WD 64M HDD
7900GS PCIE GPU
Giga-byte G41-ES2l
400W Akasa paxpower 400wPSU

I dropped timings and stuff but to no avail - so I purchased some Corsair 5-5-5-18 1.9v DDR2 ram - this errored at the same place - 279.5M in test 7.....

I then decided it could be the motherboard - so I swapped out the motherboard for an Asus p5g41c-m-lx - the error still occurred in the same place on the Corsair RAM, but for the integral RAM I now get a solitary error in test 6 and usually not until 5 or 6 full successful tests have been completed. BTW I have tested the Corsair RAm on another PC and it does not error at all

I have taken the GPU out and run off of the onboard GPU - but this has made no difference....


The only two items that are consistent, as I have changed the MB, RAm and GPU, are the PSU and the CPU - any ideas which could be faulting please???? I've already spents 65 pounds, with out any success, so dont really want to spend another chunk of money without being pretty positive that it will fix the probkem.

Many thanks

Baldrick

 

[spleenharvester]

Check the rails on the Truepower and make sure it's capable of running the system in terms of both amps and watts.

Personally I think it could be CPU cache or an otherwise faulty CPU doing it. Are there any OC's on the system?

 

[Baldrick1001]

No overclocks - all at stock - the proc has never been overclocked. I'm now giving the PC a bit of Prime95 to see if that shows anything.

Its very frustrating - I have updated the PSU details - as I just plain got then wrong - the PSU is a Akasa paxpower 400W..

Thanks for your response.