CPU/Mobo New Core i5 2400 shows high core voltage in CPU-Z

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viralbug

viralbug

Forerunner
Hey everyone! I just bought a new Intel Core i5 2400 and Asus P8H67 M-LE yesterday.
BIOS shows 1.212 as core voltage. However, when I fire up CPU-Z it shows 1.392V when down to 1.6Ghz. When running upto 3.1-3.2 Ghz it goes upto 1.5-1.6V!! :O :O
I hope this is an issue with CPU-Z? What other software should I check with?

Also, I think Coretemp doesn't show the correct temps for Sandy Bridge yet? Is that right? Coretemp shows 1.06-1.21V VID and temps are 42-52C with the 4th core being a couple degrees higher than the other cores.
 
plz use cpu-z version 1.58, it reports voltages correctly with sandy bridge cpus. Also it looks to me as a bios issue, plz download the latest bios from asus website. The idle voltage for i5-i7 is around 0.8-1 v and load should be around 1.17-1.21v at stock clocks. Also dont rely on coretemp as it does not show vid correctly.
 
Yup I figured that about Coretemp.

I'm using Cpu-Z 1.58 and the latest BIOS. :(

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Also what can I use to monitor temps?
 
^^then there can be either of two things for that ludicrous high stock voltage IMO.

1. Your mobo's vrm can be faulty

2. Your cpu is faulty as it is leaking more current and needing more voltage to run at rated speed.

If you can find yourself another board (may be borrow from a friend) and check you will get to know which is faulty. But if you cant manage that I suggest that since you are within 30 days from the purchase date, you can get your cpu replaced from the dealer you purchased it from. Intel has this condition under their limited warranty. What your dealer will do then is that he will initiate what is known as advanced replacement, where he can get the replacement from intel before he has to send out the faulty cpu.

Do that I think your problem will be solved. And regarding the board replacement Rashi is a bit slow with the RMA so it might take a couple of weeks. But I suggest you replace your cpu from the dealer pronto
 
Yeah even I feel the CPU might be at fault here. :(

The temps also kind of indicate high volt usage. Idle temps are around 45C and with slight load jumps to 55-56C. Also one of the cores seems to constantly run at 5-8C higher than the other cores.
 
What does RealTemp report? A minor voltage droop is always evident. Your motherboard BIOS will report a voltage, the application will report another and the DMM will report one (exact?). However the differences should be marginal.
 
Yups, vDroop. Should be within 5% differential of BIOS vs. correct desktop application.

Compare with: CPU-Z, HWMonitor, CoreTEMP.
 
viralbug said:
Yeah even I feel the CPU might be at fault here. :(

The temps also kind of indicate high volt usage. Idle temps are around 45C and with slight load jumps to 55-56C. Also one of the cores seems to constantly run at 5-8C higher than the other cores.
Click to expand...

idle temps of 45 c with the stock cooler in a non-ac room in india is nothing too much to worry about. Also with even slight loads the temp is supposed to jump. In mult-core cpus one or two cores will always run hotter than the other cores by upto 3-5 C but if its 8C or therebouts then try reapplying TIM and reseating your HSF. Also plz post the rest of your config as its difficult to correctly troubleshoot otherwise. Your temps are not a problem but the voltages that you have posted are. But again with those voltages of yours like 1.5-1.6 your temps are way too low or you are under water which I doubt. Also the max vid of intel SB is 1.52v so anything more than that will SB to throttle or shutdown or be completely unstable. The point I am trying to make is that your voltages are in contradiction with your temps. Might be your mobo Fintek sensors are faulty.
 
I understand vdroop. But the voltage difference in BIOS and CPU-z/HWmonitor is quite a lot.

Coretemp and Realtemp both show 1.04 VID when idle and 1.27V on load.

Cpu-Z and HWmonitor both show 1.39V when idle and jumps all the way upto 1.6V on load!

BIOS voltage is set at 1.16V for CPU and the BIOS monitor shows 1.21V.

I haven't actually put much load yet. I'll try a stress test maybe to check the temps. It does seem to be less erratic now though. :S

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System specs:

i5 2400

Asus P8H67M-LE

G.Skill Sniper 2x4GB 1600 1.25V (Running at 1333 and 1.35V)

MSI 5770 Hawk

Corsair VX450

--- Updated Post - Automerged ---

Tried out the new Coretemp 1.0 RC1 too. Same VID/temps as previous 0.99.8. Earlier version didn't show the model. New version shows i5 2400K. :lol:

Bad news. :( I ran OCCT for under 2 min and temps went upto 72-77C. Stopped it there. I'll try re-seating the heatsink and see if that helps. OCCT also recorded CPU voltage as 1.39-1.6V. :(

The new Coretemp shows power consumed in watts too. Pretty cool.
 








Dunno what's with that spike of 99C in Coretemp. :S I guess it might be an error.

But other temps in Realtemp are a concern too. :(
 
Yeah I guess I'm gonna have to do that. :(

I can't test it with anyone else cause I don't know anyone who has a 1155 motherboard staying nearby.

P.S. - Where in Navi Mumbai are you from? :P
 
why don't you just take it back to prime ? recently my cuz got a g620 + h61 from there, no boot, they tested the cpu+mb+ram, replaced the mobo on the spot.
 
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