Just received my Z77 Pro4 today along with a 3570K and 2x8 GB Corsair Vengeance DDR3-1600.
I'm not able to POST if RAM is inserted into slots A1 or A2 (closer to the CPU). If either or both are in B1 or B2, everything is fine. With both installed in B1+B2, I installed Win7, ran Prime95 for half an hour with no crash, etc.
Obviously, my problem is that even if I'm only planning to use two DIMMs for now, I cannot run dual channel without the A slots available for use.
Already tried flashing to the latest BIOS to no avail. Is there anything else I should try before RMA? Further, should I assume the mobo is at fault and send it back alone, or is it possible the CPU or RAM could be the culprit?
EDIT: Solved. Problem was a bent pin in the CPU socket on the mobo (only knew to check by searching a few other forums and seeing a couple similar reports). Used a mechanical pencil to nudge the pin closer to its proper orientation and crossed my fingers. Booted just fine with any combination of DIMM sockets filled afterward.
I'm not able to POST if RAM is inserted into slots A1 or A2 (closer to the CPU). If either or both are in B1 or B2, everything is fine. With both installed in B1+B2, I installed Win7, ran Prime95 for half an hour with no crash, etc.
Obviously, my problem is that even if I'm only planning to use two DIMMs for now, I cannot run dual channel without the A slots available for use.
Already tried flashing to the latest BIOS to no avail. Is there anything else I should try before RMA? Further, should I assume the mobo is at fault and send it back alone, or is it possible the CPU or RAM could be the culprit?
EDIT: Solved. Problem was a bent pin in the CPU socket on the mobo (only knew to check by searching a few other forums and seeing a couple similar reports). Used a mechanical pencil to nudge the pin closer to its proper orientation and crossed my fingers. Booted just fine with any combination of DIMM sockets filled afterward.
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