GA-EP45-ud3

Ok some people may have seen my other thread in the win 7 forum for win 7 hanging on start up, I've fixed that by running my hard drives as IDE instead of AHCI. I'f no ides why they stopped working but i'm told older motherboards sata controllers have problems with win 7 64 bit...

Now I have another problem,

I had a few crashes from games, one BSOD and another that just reset the pc, and a few CTDs.

I did a gpu test and cranked the settign to max and that passed no problems.

So then I did a prime95 blend test and this failed after a while, saying there was a memory fault.

So then I did a memory test using memtest86+ V4.0 and this found errors.

However when I continued you test the stick sof memeory one at a time, or even in their pairs in a dual channel they pass. If test every stick in every slot and they all pass, but the moment I put all four in at once, memtest finds faults in errors 5 and 6

Putting just 2 sticks in prime95 has successfully completed a 13 hr blend test.

The main board is a ga-ep45-ud3 rev 1.0, the proc an intel core 2 quad q6600 slacor (not overclocked) and the memory is 4 sticks of corsair CM2X2048-8500C5 in two tested pairs running on auto settings.

I think this is a motherboard fault, my reason being the memory works fine when not used altogether and that the processor test complete fine when there is only 2 sticks installed.

I haven't tried 3 sticks and I do have another mainboard I could test them in (an Asus p5b deluxe runnign an intel 965 chipset).

Shoudl I conintue with tests (it's been almost two days now) or just go get a better board? Corsair have offered to rma the memory but I don't really want to be without a pc for several days unless I absolutely have to (i.e it is the memory)

anyway thanks for listening