So I got my new extreme and cpu replacement today. My old setup must have been related to bios update or a bad cpu. Everything seems to be running very stable. I had aida64 run (cpu/fpu/cache) for 60 minutes no issues. Based on the picture I posted how much headroom do I have for the cpu clock and voltage wise? I am trying to achieve a safe 4.8ghz. Possibly 4.9ghz.

Also while 4.7ghz is stable @ 1.41-1.42 vcore. I need help to figure out why if I overclock my ram to 3466 MHz the cpu stress test becomes unstable and the vcore isn't enough. Why is this happening?


My current bios settings are:

1.cpu vcore = 1.385 (1.375 wasn't quite stable)
2.dram = 1.36
3.system agent voltage = 1.2 (I believe it can be pushed to 1.3?)
4.vccio = 1.2 (I believe it can be pushed to 1.250?)

I also left my LLC on auto. I noticed that the cpu (also based on the picture show that the vcore is slightly above what the VID of the cpu is requestion. (I guess LLC preventing vdroop?)

I also noticed when I stress test the ram with aida64 it fails anything over 3200mhz. I tried 3466mhz and it failed. How can I stabilize it at 3466/3600? I was thinking setting voltage to 1.40, system agent to 1.300, and vccio to 1.250. Not sure though.

Thanks in advance.

EDIT: I have cache set to auto which normally is 4100mhz. Just wondering if its safe to have it set at 4.8ghz instead of auto on the "max" setting? Sometimes it causes instability.

Edit #2: Cinebench results added:

single core: 202
regular test: 960 (only 190 behind my 8-core xenon mac pro!)