I've got the following computer and I've just put in a new CPU QX9650 and I've run into this problem since making this hardware change.
Whenever I put more than 1 of my 4 sticks of ram into my machine it wont load an OS. It'll go through the BIOS but BSOD on windows load. It also wont let me install an OS from disk or boot into Linux.
I've ran memtest with all 4 sticks in and I get 10k+ errors on test5. Each stick of ram on it's own is fine and functions properly. I only have problems when all 4 sticks are in the machine at the same time.
Mobo: Asus P5B 2104 BIOS
RAM: 2xPC25400 DDR2 , 2xPC2 6400 both OCZ.
Is the problem on my end or is the CPU faulty?