I am on my third motherboard and I have not been successful in having one boot with memory in Channel C. The only item connected to the board is a low end graphics card. I have tried several versions of the BIOS and different memory chips. I am using Kingston KVR1333D3N9K3/6G which Kingston assures me is the same as KVR133D3N9K2G. The difference is the first number is a set of 3 matched modules for a total of 6GB. The system boots with memory in DIMM 0 Channel A or Channel B or memory in both Channel A and B but whenever a chip is placed in Channel C it will not boot. When the system is turned on with memory in channel A o B the fns spin,the video comes up and they system go to the splash screen, With any combination that has something in channel C the fans spin up and then stop briefly as if the system were rebooting then they stay on but I never get any video. If I remove that memorny from channel C everything is fine. There is no memory installed DIMM1 Channel A. The Intel Techs are saying the board version E29331-501 is fine with the 975. A lot of finger pointing going on here but no answers. Other things I did – Clear the BIOS, reflashed with 3044, 4014 and 4158, changed video card , changed memory. Anyone ever see this? Since the system works fine with 4GB of memory in Channel A and B I would guess the processor is OK. I am now leaning toward the idea that I have a third bad motherboard board.
I just purchased and installed the DX58SO (Ver. AAE29337-701, BIOS 4598) with the I7 920 and I am having the exact same problem. I am trying to use 3 sticks (2GB each-6GB total) of Kingston 1066 RAM (from the approved memory list) and can only get 2 sticks (4GB) to work. Like you, Channel C seems to have a problem, but A and B have no issues. I've tested all three sticks individually in channel A and my PC started up without any issues. So I don't think my RAM is the issue. Were you able to find a solution? Please help!
My hardware configuration is:
i7-930 2.8 8Mb -> product code: BX80601930
Intel DX58SO Smackover LGA1366 ATX DDR3 -> AAE29331-702
Corsair XMS3 TR3X6G1600C7 6GB DDR3 3X2GB DDR3-1600 CL 7-7-7-20 1T Core i7 Memory Kit
Corsair Professional HX750W 750W ATX 12V 62A 24PIN ATX Modular Power Supply Active PFC 140MM
I have similar problem with my DX58SO -> Channel B stop working (The blue slot in the center of the 2 others blue) This setup have 2.5 year old and working well but sudently computer power off itself and refuse to reboot (it boot, fan running,no beep code, screen stay black in stanby mode, no disk activity . When I remove the DIMM in B channel, computer boot perfectly. I have put new set of 3 DIMM and same thing happen if something in channel B computer not booting. So A, C, A+C ok but B, A+B, A+B+C, B+C fail.
I have resset the bios setting to default, but no change, have unplug computer for week-end... nothing change, I can use only A +/ C slot never the B.
Please help.... thx