Quote Originally Posted by tistou77 View Post
I'm testing a Xeon E5640 (quad 32nm) and can not boot with the ram @ 2000, tested several uncor (3000-4000) and different voltage vQPI, I also tried leaving everything to AUTO
just putting the frequency manually RAM, and nothing to do

it sucks at boot, the Qled red CPU flashes and that of the DRAM is fixed

there with the ram to 1600 when it boot, over the 1600 is impossible
that's me doing something wrong, where the Xeon can not boot with a ram over 1600?

I tested with bios 0011 and 1005

thank you very much
The issue is probably your IMC (Uncore). Try raising your QPI/VTT.