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Why is my CPU voltage so low?

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DeegansTroop   08-04-2009 at 07:47:20 AM

Hey everyone, just getting my computer going and Im running CPU-Z and a few other programs to check out my voltages and clock speeds and everything looks normal so far but my cpu core voltage is .928 volts. After looking around I found that most ppl had a standard voltage of around 1.2v. Is this a good thing, bad thing? Im not sure what to make of it. Any suggestions?

System Specs:
CPU: Intel Core i7 920 (not overclocked)
CPU Cooler: Ultra Chil-tek thermal-electric cooler
Motherboard: ASUS P6T Deluxe V2
Memory: Corsair i7 Dominator 6 x 2048mb DDR3 PC12800
Video Cards: Two EVGA GTX285 F.T.W. edition in SLI with standard ASUS bridge
Power Supply: Ultra X3 1600w power supply (I have it running 1200w currently)
Case: Cooler-Master HAF932 w/ stock fan setup
Additional: NZXT Fan Controller, LG DVD-RW, Seagate SATA 1.5tb HDD, and I also have the 22" Viewsonic 120mhz 3d Monitor running at 1680x1050
My OS is Windows 7 64bit RC

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Bronze CPUs badge cjl   08-04-2009 at 09:43:46 AM

Lower voltage is always good. As long as it's not crashing or anything like that, I would not worry about it at all. With that voltage though, I bet you're talking about idle voltage. Load up the CPU with something like Prime95 and I bet the voltage will climb to 1.1V or higher.

------------------------------ Asus P6T deluxe
i7 965 @ 4.2GHz (200*21), 1.384V
12GB Corsair Dominator DDR3-1600 CAS 7
 Reply to cjl
amnotanoobie   08-04-2009 at 12:52:20 PM

Read: http://www.anandtech.com/cpuchipse [...] i=3184&p=5

CPU-Z is probably reporting what is being supplied currently to the CPU. The anandtech article explains quite clearly why you really shouldn't worry.

If it ain't broke don't fix it, I guess.

Reply to amnotanoobie
revan89   08-04-2009 at 04:30:59 PM

that could possibly mean u can actually sell ur cpu for a damn good price.

great potential for overclocking, but if u are not an enthusiast, perhaps u wanna sell it? u can earn lots

Reply to revan89
Helloworld_98   08-04-2009 at 04:33:03 PM

^ I'd guess he's an enthusiast since he has two GTX 285's and a TEC cooler.

Reply to Helloworld_98
DeegansTroop   08-04-2009 at 08:47:05 PM

Wow thanks for all the feedback guys, Cjl was right on, when I load the cpu it jumps up to the 1.1v mark. Overclocking is where i want to go with this I was thinking about going to the 3.3mhz or 3.6 mark but maybe Ill give the 4.0mhz a try.

Reply to DeegansTroop
flyin15sec   08-04-2009 at 09:45:18 PM

Those are the Cstate and Speedstep features. They reduce voltage and cpu multiplier. You'd want to turn those features off anyways if you plan on going for hi overclocks.

Reply to flyin15sec
Bronze CPUs badge sminlal   08-04-2009 at 10:22:22 PM

The Core i7 CPU asks the motherboard for the voltage level it needs according to whatever load it's currently under. When lightly loaded it requests less than 1 volt, but when the load picks up it will request up to 1.25V or so.

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