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i7 Voltage - Which is Correct?

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PC_User

Supreme [H]ardness
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Sep 15, 2007
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I set the vCore voltage of my i7 to 1.3750 in BIOS and it's running at 4 GHz.

CPU-Z (and other programs) show it as 1.344v on idle and 1.328v on 100% load.

The real-time reading in BIOS is 1.364v.

Which is correct and who should I trust?
 
The BIOS monitor is probably the idle actual vCore, while the ones you see in Windows are when the system is being used some, from vdroop. So, barring measuring with a multimeter, I'd say they're both correct ;).
 
GoldenTiger said:
The BIOS monitor is probably the idle actual vCore, while the ones you see in Windows are when the system is being used some, from vdroop. So, barring measuring with a multimeter, I'd say they're both correct ;).
Click to expand...

Which do you think I should rely on more when OC'ing?

I'm looking for the lowest possible vcore voltage to be stable at 4GHz.

Right now I'm at 4GHz @ 1.344 (Windows idle) with HT off. I'd like to go lower but not sure if the chip will let me.

My other alternative is 3.8GHz @ 1.216 (Windows idle) with HT on. Not sure which I should choose.
 
thats a substantial difference in voltage for only 200mhz. Can you find a common ground between the 2 speeds? for example my i7 920 is stable at low voltage also @ 3.8ghz and it seems to want tons of voltage to hit 4ghz....so Ive settled on 1.232v windows load for 3.925ghz
 
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