GA-EP45-DS5 Faulty DIMM Slot1

[Drewy]

Hi
I have been using this motherboard for 7 months with no problems, one day last week  BSOD. After checking various bits I found that DIMM slot 1 seemed to be causing the problem. I am running 2 pairs of Corsair twin2x4096-8500c5d matched Dominator chips. The motherboard runs fine with 4\ 6gb installed but will not boot with the 8 gb installed. I have run mem86 and all is fine until I use DIMM1 when I get many  errors. I have interchanged the memory in DIMM1 and get the same results.
Any help would be appreciated.

Drewy

System
Motherboard       GA-EP45-DS5
Processor           Intel Quad Q9650 @3.ooGHZ
Display              ATI Radeon HD 4600 series.
Power supply     Artic 700w.
O\S                   WIN 7 32 Bit
Bios                  F12

[Pottypete]

hi,Yyou cannot run more than 4gig of memory with a 32 bit O/S, even that will only show as 3.5 gig
due to windows limitation  to 4gig.
cheers

[Drewy]

Hi
I forgot to mention that I run a duel boot system the second one being 64 bit. But that should not make any difference anyway, the PC should boot up with all Dimm slots filled but mine will only boot if I do not use slot1. The board has worked fine with 8 gig installed using 32 and 64 bit O\S.