Overclock.net › Forums › Intel › Intel CPUs › CPU-Z vcore voltage randomly increases
New Posts  All Forums:Forum Nav:

CPU-Z vcore voltage randomly increases

post #1 of 5
Thread Starter 
I'm trying to work out something that is happening with my q9550

I have disabled every cpu power saving feature i have found on my motherboard (gigabyte, ga-ep45-ud3r) and as such my cpu shows as 3.4GHz (overclocked from 2.83GHz) constant and my vcore shows as 1.152v while in CPU-Z.

It is a perfectly stable overclock showing 0 errors and 0 warnings after 8 hours of torture tests in Prime95 with round off checking.

However CPU-Z shows my vcore increasing to 1.168v from 1.152. Why is this happening? It does it randomly. It will fluctuate between 1.152 and 1.168. In the bios it is manually set to 1.1875 so I didn't think the vcore could move up in voltage?

Any advice will help, thanks!
Edited by sirhc9891 - 2/7/11 at 2:00pm
post #2 of 5
most systems will do this. All of mine have done it to some degree, and im pretty sure most high end systems here on OCN do it as well. it can be everything from power supply fluctuations, the board tweaking some things on the fly automatically, shifts in the 12v load distribution, many things can cause a minor voltage fluctuation. Shoot, even cosmic rays, should a strong enough one manage to get through the magnetic field of the earth and our atmosphere, hitting a trace can cause the voltage to shift slightly.

Dont worry about it as long as it doesnt do any really drastic shifts. If it does something like jump up WAY beyond what you have selected or do the exact opposite if (+/- .150v) then you need to start checking for faulty parts. If speedstep and C1E are enabled, then that is different.
Leviathan
(17 items)
 
Charred
(10 items)
 
 
CPUMotherboardGraphicsGraphics
Xeon E5-2690 Biostar TPower X79 PNY GTX 660 2GB HP GT 440 OEM 
RAMHard DriveHard DriveHard Drive
Gskill Ripjaws 4x2GB 1600mhz Seagate Barracuda 500GB Seagate Barracuda 1.5TB Western Digital Caviar Blue 640GB 
Hard DriveCoolingOSMonitor
Patriot Pyro 60GB Xigmatek Gaia Windows 7 Ultimate Acer S230HL 
MonitorKeyboardPowerCase
Princeton 1280x1024 19" Logitech K120 Seasonic G550 Xclio Nighthawk 
Mouse
Logitech MX310 
  hide details  
Reply
Leviathan
(17 items)
 
Charred
(10 items)
 
 
CPUMotherboardGraphicsGraphics
Xeon E5-2690 Biostar TPower X79 PNY GTX 660 2GB HP GT 440 OEM 
RAMHard DriveHard DriveHard Drive
Gskill Ripjaws 4x2GB 1600mhz Seagate Barracuda 500GB Seagate Barracuda 1.5TB Western Digital Caviar Blue 640GB 
Hard DriveCoolingOSMonitor
Patriot Pyro 60GB Xigmatek Gaia Windows 7 Ultimate Acer S230HL 
MonitorKeyboardPowerCase
Princeton 1280x1024 19" Logitech K120 Seasonic G550 Xclio Nighthawk 
Mouse
Logitech MX310 
  hide details  
Reply
post #3 of 5
the vcore will fluctuate and its completely normal, do you have LLC enabled? I am fairly certain that board has it.
3930k
(20 items)
 
  
Reply
3930k
(20 items)
 
  
Reply
post #4 of 5
Thread Starter 
Yes I have LLC enabled. I was thinking about disabling it but I read that it is better to keep it enabled?
post #5 of 5
Quote:
Originally Posted by sirhc9891 View Post
Yes I have LLC enabled. I was thinking about disabling it but I read that it is better to keep it enabled?
Yup, you should keep it on, it should help negate the vdroop somewhat.
3930k
(20 items)
 
  
Reply
3930k
(20 items)
 
  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel CPUs
Overclock.net › Forums › Intel › Intel CPUs › CPU-Z vcore voltage randomly increases