Vcore voltage on E8400

[GunRunner]

I have been used to overclocking a E6600 for the past year and I am now running an E8400. The motherboard is an EVGA 780i.

I have been slowly increasing the clock speed and have until now left the vcore setting on auto. I am now at 3.8ghz with no problems running prime, but the CPUID hardware monitor shows I am at 1.32 volts. This is obviously too high and I dont feel happy with it much above the specification of 1.25, so I have reset the vcore in the BIOS at 1.25 the CPUID hardware monitor now shows it at 1.22 volts, and prime will stop after 10 minutes.

I have a question to anyone running an E8400 who is experienced at overclocking this chip. What is the safest highest vcore I can get away with to overclodk to 4.0 ghz? I am using an Arctic Freezer 7 pro inside an Antec 900 case. The highest temps I have seen in prime are 60 degrees on both cores. Do I have plenty more room to overclock?

Thanks in anticipation.

 

[El Jimben]

1.32v is fine, most people are saying that anything over 1.4v is where you need to start being careful as you might start to suffer from the dreaded 45nm degradation issue!

 

[GunRunner]

1.32v is fine, most people are saying that anything over 1.4v is where you need to start being careful as you might start to suffer from the dreaded 45nm degradation issue!

Thanks for your input. On my box it says 1.25 volts. I have seen many places quoting 1.375 volts.

Degradation issue? Yes I have seen that stated before! Have you a web site reference on this that is an authority on this subject? All I can find is hearsay and rumour and once someone starts doing this, it gets perpetuated and then becomes fact in many peoples eyes when in most cases it is speculation. Lets face it, it needs many many hours sometimes spread over years to get the correct MTBF (Mean Time Between Failure) for any item (mechanical or electrical), and this CPU has not been on the market long enough to find this out.

 

[El Jimben]

I can't link you to any sites no but I've seen a few users on here stating that after they'd put 1.4/1.45v through their chips if only for a short period for benchmarks etc, their overclocks were no longer stable at the voltage they used to be.