Core 2 Duo E6850 Incorrect Temperature Reading

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Shaina11

Shaina11

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Apr 23, 2014
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I'm using SpeedFan to take control over the fans controlled by the Intel QST on my DG43NB motherboard, but I've noticed a difference in temperatures between HWMonitor and SpeedFan.

Here's an example. One of them is off by 10*C, while the CPU is idle, SpeedFan can report the core temps are around 35*C, meanwhile HWMonitor reports core temps are at 45*C, which should I believe? If you need more information, please let me know.
 
Solution
D
Use RealTemp. It was designed for Intel processors.

https://www.techpowerup.com/realtemp/

CoreTemp is another good one.

http://www.alcpu.com/CoreTemp/

I would bet those 2 programs will agree and will be correct.
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Use RealTemp. It was designed for Intel processors.

https://www.techpowerup.com/realtemp/

CoreTemp is another good one.

http://www.alcpu.com/CoreTemp/

I would bet those 2 programs will agree and will be correct.
 
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Shaina11

Shaina11

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Thanks for the suggestions, I'll certainly try those two programs. Though my question remains, which of the two that I currently have would you believe to be more accurate? I'm trying to tune SpeedFan to control the fans based on temperature as well, I want to make sure that it's accurate. Though I am aware that by trying those other two programs it will tell me which is correct anyway.
 
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No way to tell. Let's see if RealTemp and Coretemp agree and if they do which of the other programs they match. Odd to think that CPU might just have aged out of support for one of those programs but it's possible. Old CPU could also have a stuck sensor.
 
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Shaina11

Shaina11

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Alright, as of right now, SpeedFan says 16*C on both cores, HWMonitor says 26*C, Core Temp says 22*C and Real Temp says 26*C.

From this, it looks like HWMonitor could be more accurate if Core Temp is correct, and SpeedFan is off by several degrees. I'm warming up the CPU now with Prime95 since it's a cold boot, then I'll let it idle and check the temperatures of all programs.

EDIT: So far it looks like Real Temp agrees with HWMonitor, and SpeedFan is 10*C below HWMonitor, and Core Temp is 5*C - 6*C below HWMonitor.

Results:
Here are some screenshots from the load temp, and idle temp as of that time.

Load Temp:
LlEAQHl.jpg


Idle Temp:
NtmG9OA.jpg


Update:
MSI Afterburner also agrees with HWMonitor on the core temperature. It's supposedly idling about 38*C according to HWMonitor, MSI AF, and Real Temp. Core Temp says about 33-34*C, SpeedFan says 28*C. I think SpeedFan is wrong and thus I need to tune its reading to be about 10*C higher.
 
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Realtemp should be the most accurate since it was specifically designed for Intel. Speedfan isn't terrible but I mostly use it for reading SMART attributes.

It is kinda crazy you're seeing that much variation though. I really don't know why honestly.
 
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Shaina11

Shaina11

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Thanks for the help anort3, appreciate it. I've offset SpeedFan's reading to be 10*C higher for the CPU cores, and I'm going to tune the fan speeds accordingly.

One more thing I just noticed too.... my PSU is rattling. I think it's the fan as I can hear it spinning down once I shut off the computer. I also opened the case, listened, and watched it. I changed the other fan speeds to make sure as well. Uh, is it bad for it to be rattling? I know it's "bad" and it's a sign of failure for the fan, but it's hardly audible unless the other fans are near-silent. Is it still safe to use, or should I be a bit concerned? I'm definitely going to be keeping an eye on it, and not leave it running alone. I don't want it to blow up and take the rest of the parts with it, nor burn the house down.

400 watt, Delta brand. Borrowed from another semi-working desktop(needs a new HDD, original failed.) until I can get my own PSU. I just recently built this rig from parts from a local computer parts shop, they have mostly old parts. I wanted it mainly for Windows XP and older games.

P.S. As a question of comfort, will a PSU shut itself down if it gets too hot to prevent damage and from blowing up/melting?
 
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Deleted member 217926

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Delta made units are known for being quite good usually but if the fan is making noise the bearings might well be failing. I'd replace it to be sure when you can. Since this seems to be more something to play with and not a primary machine I wouldn't worry about it too much but if that power supply is over 7 or 8 years old that alone would be a reason for me to start looking for a replacement just due to capacitor aging.

Glad to help. :)
 
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Shaina11

Shaina11

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Thanks, hopefully I can get a new PSU soonish. Hopefully this one won't fail on my brother when we can get his desktop up and running with a new HDD... that would suck to get a working desktop only to have the PSU take everything out. Maybe we can try to get him a new PSU as well.
 
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