set the speed of the RAM to 1333MHz
load Load Optimized Defaults in BIOS
how did you reset the BIOS? Try again with the clrcmos jumper, while the system is disonnected from the wall socket.
Maybe the cpu cooler is too tight on the CPU. Losen it just a bit.
Eventually the CPU contacts are contaminated. Did you touch these? Would clean the CPU contacts with alcohol or similar.
Have a look at the socket pins again, pretty sure it´s a contact problem
RAM speed is 1333, I already tried that. Right now as of typing it's at like 1410 or something because of BCLK overclock.
I use the jumper every time.
I know the cooler isn't too tight, I only use my thumbs and go until it's too hard to twist that way.
I'll try cleaning the CPU, when I upgraded from my H77M I just moved the CPU.
There's one pin on the motherboard that's missing, but it's on the VCC/VSS quadrant of the CPU and even then the RAM was still reported as 24GB, when that still worked.
I blew out the socket with compressed air before my initial post. I'll try again soon and report back. Is there any way I can tell what pins aren't making contact? Intel should make a GUI that shows what pins are being used...