Hey guys, so I've been overclocking my CPU by slowly raising my multiplier until it reaches an unstable point where I have to raise my CPU Voltage. I am now at that point however I am having trouble figuting out how to raise the voltage in increments. In my bios settings there is a category of CPU Vdd and plain CPU voltage (both on auto by default). So I try to raise the CPU voltage to something higher than 1.36, (which is the default), like 1.37 however the voltage reading I get does not make sense. So I read somewhere that CPU VDD and CPU V are related. I then try setting just the CPU VDD (to 1.4), I'm just confused on how the settings relate to the actual CPU voltage. Is there one I have to set to something and then set the other to another value. I gathered that CPU V is used to fine tune the CPU VDD for the CPU. Is there a guide to this? All I want to do is to raise my CPU v a little.
My CPU is AMD II X4 Black Edition 965 (the 125 W, not the higher one)
so I went ahead and changed my CPU V settings. It did change in CPU-Z however the numbers I set it to in the cell menu don't match CPU-Z or the Hardware Bios Menu??
for example while trying to stabalize a 4 ghz overclock I set the Cpu-V to 1.425 and it read both on CPU-Z and the Bios HW monitor 1.392 I am kind of confused on how this works?? Which one is the real one?
But anyway I have another question concerning the maximum voltage I should allow for my cpu.
i always trust CPU-Z to see my voltage, but I & Software can wrong ! however CPU-Z always higher than HWM in Mobo and ...other software I use HW monitor Pro, see temperature & Voltage .
965BE for 4Ghz generally Vcore (in CPU-Z) 1.42 ~1.44, but it 's depend on other Hardware & System OS
Hi, thanks for the response. One more question. Why is it that when I set a value for CPU V, say 1.425, it reads 1.392 in both CPU-Z and H/W Monitor in the Bios? Which one should I be paying attention to. I am concerned because obviously 1.425 is over 1.4, yet it reads 1.392 in programs. Also I heard there's actually a margin above the listed voltage one can go to? Is that true? Thanks again!
Do not play around with voltages too close to the manufacturer's upper limit.
The monitored value is the actual voltage - usually slightly lower than the set voltage.
And yes, most manufacturer's design in some safety margin - and that is exactly what it is - safety margin. Analogous to the RPM red line in automotive engines. I would stay clear away from this upper limit.