I have tried 5 different DIMMs,
2x4gb Gskill RIP Jaws 1600mhz
1x8gb PNY XLR8 1600mhz
2x4gb Corsair Vengence 1600mhz
I am using an ASrock h77m-itx mobo, with a i7-2600k, corsair hx750 and the RAM listed above
the mobo has 2 Memory Lanes, I am using the second instead of the first. Out of those 5 DIMMs only 1 DIMM worked, I am using 1 of the 2 corsair vengence 4gb. The other 4 DIMMs did not work on either Memory Channel. I have tried cleaning the RAM, buying new RAM (the 8gb PNY XLR8) I have also used compressed air and cleaned out the Memory Channels. I have tried updating the bios, clearing the CMOS multiple Times Not quite sure what else to do, and I cant really afford to RMA, I work from Home and need my computer, additionally shipping to CA from MA would cost about 1/3 of a new one.