Help with E8400 temperature readings

[phexac]

I just built a new system in the signature.

The important components here are:
C2D E8400 sitting at stock clock under the Tuniq Tower on ASUS P5E X38 board. The case is Cooler Master Stacker 830 with 2 additional 120mm side fans.

I am using 3 different CPU temperature meters: CPUCoo 8.0.6, Core Temp 0.96.1, and SpeedFan 4.33.

Of the two, CPUCooL and SpeedFan match each other almost exactly, going from 35 degreed on idle to 47 on full load running PRIME95 torture test on both cores. CoreTemp is basically 10-12 degrees higher, going frmo 45 to 57 degrees.

Which one is correct? I have read on the AnandTech forum in the overclocking guide that 3.32 SpeedFan underreported C2D temperatures by 15 or degrees. I find it pretty hard to believe that my E8400 is idling at almost 50 degrees Celsius under the Tuniq.

Finally, in AnanTech reviews, CPU temperatures under high-end coolers go from 27 on idle to about 33-35 on full load at stock temperatures, and that is for the E6xxx series chips. I would expect the E8400 45nm part to run lower. I mean it IS THEORETICALLY possible that I screwed up applying the thermal compound to the processor (I used the one that came with the Tuniq, spread it somewhat evenly over the CPU, and slapped the heatsink on...even if I did not spread it too well, the sheer pressure of the heatsink being pushed down by screws should have ensured that the paste is spread evenly...right?).

Any help and comments would be appreciated.

 

[imported_wired247]

just curious, what vCore are you at?

this board likes to pump the vCore like crazy on Auto setting, which increases temps

 

[phexac]

Triple post woops so sorry--new to these boards' controls

 

[phexac]

woops double posting ignore this one

 

[phexac]

For the stock setting, it was at 1.12x in CPU-Z

I just bumped the processor to 3.3GHz and iset it manually to 1.2V, which vdroop brought down to 1.144 according CPU-Z. That done, CPU temperatures did not change at all. Still idling at 34ish (speed step off this time and running torture test at 47 degrees in SpeedFan/CPUCooL and 58 in CoreTemp.

I would just like to know what other users are getting--if a lot of the numbers end up being a lot lower than mine, I will take off the heatsink and reapply the thermal paste.

Heck the newest review on AnandTech that they just posted claims processors idling at 25 degrees on junky coolers in CoreTemp...wtf

EDIT: I just saw you have a similar system, and am wondering what your temps are....

 

[phexac]

Just got to 400MHz FSB (3.6 GHz CPU speed) at 1.2V (1.144V after vdroop). The temperatures have not budged at all. Still 34-48 on SpeedFan/CPUCooL and 47-59 on CoreTemp.

The whole temperature situation has me confused frankly since it is nowhere close to where AnandTech was reporting in their reviews. At the same time, OCing has been stable.

I am going to leave PRIME95 running while I go to sleep and then use the comp tomorrow all day before OCing further.

NOTE: I would still like to see everyone else's readings here to see if mine are too high, perhaps indicative of needing to reinstall the heatsink and reapply thermal paste...

 

[Blain]

Originally posted by: phexac
I would still like to see everyone else's readings here to see if mine are too high, perhaps indicative of needing to reinstall the heatsink and reapply thermal paste...

A definite possibility.

 

[Riverhound777]

Welcome to the crazy world of the E8400. No I really doubt it has anything to do with your heatsink install. You are not alone with these temperature readings. There are several other posts on here with mention of this issue, mostly by me and a few others. But other sites have large threads about it. Some people are having very odd issues with this processor. Some have temps that are actually stuck, or wont drop below a certain temp. Yours seems to bit another mixture, it changes from idle to load, but those don't change. My processor is similar but my temps change depending on voltage. from ~40idle, ~55 load at stock to ~44idle, 67 load at 4.05GHz. Both way too high for this supposedly cooler running CPU.

Take a look at this thread if you want to see some other temps and OCs
http://www.xtremesystems.org/f...howthread.php?t=173999

 

[phexac]

I just replaced the heatsink and reapplied thermal paste--the results are about the same--dropped 2 degrees or so, which is cool I suppose, but that still leaves me running at temperatures higher than those reported in reviews etc.

The comp completed stability test however, running PRIME95 overnight, so everything is good.

By the way, in SpeedFan, after System and CPU temps, there is a list of other temperatures, which is all outta whack, with some really low (like 1 degree C) and some really higher (70 degress C) readings. I am quite sure there is not a single part of my system that runs that hot or cold. Even the GPU is only 60 degrees...