I'm new to both overclocking and this forum, so let's see how this goes.
I yesterday overclocked my E8400 CPU to 3.2 Ghz doing the usual stuff: I increased the host frequency to 350 mhz, set the FSB:DRAM ratio to 1:1, set the PCI-E frequency to 100 and disabled the Speedstep (EIST) and C1E features temporarily for stability testing. But I wasn't sure about the CPU voltage, so I set it to Auto. However, when on Auto, CPU-Z gives me a vcore of 1.28v, which seems to be too high for the current speed of the CPU.
So I checked the VID value on CoreTemp, which I understand shows the "standard" voltage for the CPU, and it gave me 1.225v. So I went into the BIOS and set the "CPU Voltage" to 1.225v. So far so good. But now, CPU-Z is telling me that my vcore is around 1.18v, even when it's under load and when I'm running Intel Burn Test, despite the fact that I set the voltage to 1.225v. Also, under these circumstances, the CPU passed the Burn Test successfully with 10 runs under the Standard setting.
So, overall, there are four questions bugging me:
1- Is it normal for the vcore to be lower than the voltage I set in the BIOS, even under load?
2- Is the VID value the absolute minimum voltage you must set for your CPU, or can you go lower than that?
3- Seeing that it passed the Intel Burn Test, can I say that the CPU is not undervolted?
4- Finally, with the voltage values as they are now, can I eventually go up to 3.6 Ghz as long as the temps are not too high?
Thanks, everyone. I know it's a bit long, but I'd appreciate the help.