I assembled a new PC a while back and couldn't get the memory to work properly with 8GB of supported memory installed. It worked fine with 4GB. A very helpful fellow on this forum (bilbat) gave me some BIOS settings which appeared to work, and my PC passed a long memtest86 test.
As time wore on, though, the system freezes returned; at first sporadically, then more and more until the system was unusable. I removed 4GB and the system is stable again.
My theory is that the system was still on the edge after the BIOS settings, and something in the OS changed (??) which pushed it over the edge.
Advanced Voltage Settings
- CPU Vcore 1.24375
- QPI/Vtt Voltage 1.200V <-- increased from 1.1 per bilbat
- PCH Core 1.050V
- CPU PLL 1.800V
- DRAM Voltage 1.540V <-- increased from 1.5 per bilbat
- DRAM Termination 0.750V