Intel Core i7 voltage

PH3N0M · Aug 6, 2009, 05:37 PM

I'm curious as to what the threshold is for the core voltage on the Core i7 chips. I have a 920 and at 3.791Ghz, I've seen my core voltage go up to 1.28 volts. Is this within spec or is it too high? Thanks in advance.

mkk · Aug 6, 2009, 05:53 PM

Intel's processor spec finder -page lists the current crop of 920's as capable of up to 1.375V, but I wouldn't take it quite that far myself. You're probably wise to keep it below 1.30V, as it's an expensive chip after all.
Processor Spec Finder
Intel® Core™ i7 Processor

PH3N0M · Aug 6, 2009, 05:57 PM

Well, as you can see in the screenshots above, the voltages don't stay at the 1.28 voltage. It's only when Turbo Tech kicks in that my voltages will fluctuate from 1.10v-1.32v

Tyrsonswood · Aug 6, 2009, 06:26 PM

I don't have an i7, (not even close.... lol) but I would think that is normal fluctuation you are seeing unless both screen shots are at idle........ Isn't the i7 supposed to "overclock/underclock" itself dependent on load?

PH3N0M · Aug 6, 2009, 07:06 PM

Nah, the screenshots are at the peak of the Turbo boost. As you can see below, the multiplier will drop pretty low at times, and then climb back up as needed.

Tyrsonswood · Aug 6, 2009, 07:15 PM

That's what I thought. If your highest reading was 1.32v you're probably fine.

Chanur · Aug 11, 2009, 08:41 AM

Vcore is always going to fluctuate, that's how it functions. It partly because Core i7's underclock/overclock themselves and lower their own voltage when underclocking... it is also a function of vdroop.

1.375v is the maximum Intel spec without voiding the CPU's warranty, and I would say even that is fine for any Core i7... I run mine a fair bit higher since I have it overclocked to 4.2GHz.

procupine14 · Aug 11, 2009, 04:33 PM

From my experience I don't see that voltage causing any problems for your CPU as long as you keep it cool everything is good

Aug 6, 2009, 05:37 PM	#1
PH3N0M The Master of Sarcasm Join Date: Aug 2008 Location: The U.S. of A Posts: 343 Rep Power: 21 System Specs	Intel Core i7 voltage I'm curious as to what the threshold is for the core voltage on the Core i7 chips. I have a 920 and at 3.791Ghz, I've seen my core voltage go up to 1.28 volts. Is this within spec or is it too high? Thanks in advance. __________________ Last edited by PH3N0M; Aug 6, 2009 at 05:47 PM.

Aug 6, 2009, 05:53 PM	#2
mkk cheap philanthropist Join Date: Oct 2003 Location: Gefle, Sweden Posts: 3,704 Rep Power: 67 System Specs	Re: Intel Core i7 voltage Intel's processor spec finder -page lists the current crop of 920's as capable of up to 1.375V, but I wouldn't take it quite that far myself. You're probably wise to keep it below 1.30V, as it's an expensive chip after all. Processor Spec Finder Intel® Core™ i7 Processor

Aug 6, 2009, 05:57 PM	#3
PH3N0M The Master of Sarcasm Join Date: Aug 2008 Location: The U.S. of A Posts: 343 Rep Power: 21 System Specs	Re: Intel Core i7 voltage Well, as you can see in the screenshots above, the voltages don't stay at the 1.28 voltage. It's only when Turbo Tech kicks in that my voltages will fluctuate from 1.10v-1.32v __________________

Aug 6, 2009, 07:06 PM	#5
PH3N0M The Master of Sarcasm Join Date: Aug 2008 Location: The U.S. of A Posts: 343 Rep Power: 21 System Specs	Re: Intel Core i7 voltage Nah, the screenshots are at the peak of the Turbo boost. As you can see below, the multiplier will drop pretty low at times, and then climb back up as needed. __________________

Aug 11, 2009, 08:41 AM	#7
Chanur DriverHeaven Junior Member Join Date: Apr 2006 Location: Texas Posts: 66 Rep Power: 0 System Specs	Re: Intel Core i7 voltage Vcore is always going to fluctuate, that's how it functions. It partly because Core i7's underclock/overclock themselves and lower their own voltage when underclocking... it is also a function of vdroop. 1.375v is the maximum Intel spec without voiding the CPU's warranty, and I would say even that is fine for any Core i7... I run mine a fair bit higher since I have it overclocked to 4.2GHz.

Aug 11, 2009, 04:33 PM	#8
procupine14 Why is it Beeping!?!?! Join Date: Apr 2007 Location: USA, Missouri Posts: 1,211 Rep Power: 27 System Specs	Re: Intel Core i7 voltage From my experience I don't see that voltage causing any problems for your CPU as long as you keep it cool everything is good __________________ Laptop: HP dv6000 - Vista Ultimate (32-bit) - AMD Turion 64 X2 TL-60(2.0GHz) - NVIDIA GeForce Go 7200 256MB - 4GB Kingston DDR2 667 - 160GB 5400RPM SATA Hard Drive HTPC: Vista Ultimate 64-bit - AMD Athlon 5200+ x2 - 4GB OCZ DDR2 800 - 250GB Seagate Barracuda - Samsung EcoGreen 1TB - Hauppauge single tuner HD - ASUS Radeon HD4550 512MB - ECS RS485M-M mobo - Creative X-fi soundcard Other PC: Vista Ultimate 64-bit - AMD Athlon 4200+ X2 - 4GB Crucial Ballistix DDR2 800 - 250GB Seagate Barracuda - XFX 8600GT XXX - DFI Infinity NF570 SLI-M2/G