Ok my system has a core i7 960, DX58SO2 motherboard, 1200W PSU, and I am trying to run it with my corsair 1600mhz 1.6v ram. I can boot and run stable fine with one stick in the primary slot. (any of my 6 sticks work fine here.) but It won't even post if I fill all the primary slots or all 6 slots. I get the 21b post code. I went into the BIOS configuration and set it to 1600mhz profile but that doesn't change anything..... help?
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