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Wrong voltages?

Last response: in Overclocking
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December 23, 2011 2:13:40 AM

I incread the cpu voltage in the BIOS to 1.48125 for an FX 4100. But when running Prime95, cpu-z reports it at 1.5000V...obviously a cpu shouldn't go above 1.5000 yet I only put it at 1.48125..why is that?

More about : wrong voltages

a c 139 à CPUs
a c 242 K Overclocking
December 23, 2011 7:30:30 AM

Reading at bios and cpuz always's different. It's all depend motherboard and PSU .. Called Vdrop.
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December 23, 2011 10:15:58 AM

henydiah said:
Reading at bios and cpuz always's different. It's all depend motherboard and PSU .. Called Vdrop.


But is that inherently bad? I've read everywhere that you're not supposed to go above 1.5V for the Vcore. Right now I've got it at 1.48125 and both CPUZ and CPUID report it at 1.512...should I worry about that? Maybe I shouldn't raise the voltage anymore?
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a c 139 à CPUs
a c 242 K Overclocking
December 23, 2011 10:22:30 AM

No .. You must go back to deafult first. See how much different reading voltage stock, high voltage make me scare
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a c 172 à CPUs
a c 197 K Overclocking
December 25, 2011 4:33:35 AM

henydiah, the word you are looking for is "vdroop". And that is not what is happening.

stryk3r, it looks like what you are seeing is D/A conversion errors in your motherboard power regulator. Check and see if CPU-Z reports voltage .03875 volts higher than what was set in the BIOS. If that error is constant throughout the useful voltage range, just subtract it for the BIOS setting.

If your max recommended voltage is 1.50 volts, you shouldn't go over BIOS settings of about 1.46 volts.

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