I've just done a full upgrade, replacing almost all internals with:
Motherboard: Asus M5A97 pro
Processor: AMD Phenom II X4 980
Ram: single 4GB stick of DDR3 (patriot PSD34G13332H - PC3-10600 1333MHz CL9)
Vid: Asus HD6670
I had no problems really with the build itself (no hammers required), but when I power up, the motherboard is complaining about the ram. There's a dram error led lit, and when I connected a speaker it's giving the code for bad memory. This all happens immediately, before I can get to the bios. It's never got past this point.
I've tried 3 different sticks of the Patriot ram, and another brand (that I don't have the details of), with the same thing happening each time. I've tried the ram in different slots, and am getting the same problem as if there was no ram installed. The motherboard documentation says it's compatible with ECC, non-ECC, non-buffered ram, but Asus' 'Qualified Vendor List' doesn't mention that specific ram (although it does have a few Patriot 1333MHz 2GB sticks in the list).
I also tried removing the video card in case it's a power problem (it's an old 400W PSU), but got the same problem. It didn't go away when I cleared the CMOS RTC ram.
I'm hoping I'm missing something, and want to rule everything out before popping the CPU and returning the motherboard. Does anyone have an idea if it's more likely to be an incompatibility between ram and board, a dodgy board, a badly seated cpu, or something I've missed?
I have just had the same issue with ram not being recognised. In my case though, it is in the QVL ie Corsair CMX8GX3M2A1600C9 DDR3 XMS3 8GB.
Whatever combination I've tried I get the long beep,2 short beeps from MemOk.
I am sending it back as DOA and ordering another type from the QVL; this time it's the Corsair Vengance 2x4Gb CMZ8GX3M2A1600C9
One thing that really disturbs me is the persistent high pitched noise that accompanies the beeps. It sounds awful. Is that anyone else's experience?
Edited by hamluis, 20 November 2011 - 12:09 PM.
Split from different topic, sent PM to new OP.