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Which temp program to belive?

Drake

Drake

Drake

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Joined
14 May 2006
Posts
186
Location
Stoke-on-Trent
Hey, ive just finished my firt ever self build and Ive had things running for a hour or two but ive installed 2 programs which monitor my CPU temps and their both giving different results.

The first is Motherboard Monitor 5 which is giving me 31o when idle which is fine but the other which is called Core temp is giving 47-50o per core when idle which is quite worrying..

Im running an E6700 at stock speeds with a Scythe Ninja heatsink+fan in a Lian-Li S80 case. I used Artic Silver 5 on the CPU but I must admit I think it may have been on a tad thick.. but anyway is there anyway to get a 100% accurate reading? I dont want my first ever buidl to result in melt down :(

Cheers.
 
Core Temp reads the temperature from the actual CPU core itself. It will likely be +15C on the motherboards reading.

Jokester
 
hm FanSpeed seems to think its at mid 40s when idle too.. uge this is gonna suck if I need to take the heatsink off cos it wasnt much fun to get on in the first place. :(
 
Drake said:
Hey, ive just finished my firt ever self build and Ive had things running for a hour or two but ive installed 2 programs which monitor my CPU temps and their both giving different results.

The first is Motherboard Monitor 5 which is giving me 31o when idle which is fine but the other which is called Core temp is giving 47-50o per core when idle which is quite worrying..

Im running an E6700 at stock speeds with a Scythe Ninja heatsink+fan in a Lian-Li S80 case. I used Artic Silver 5 on the CPU but I must admit I think it may have been on a tad thick.. but anyway is there anyway to get a 100% accurate reading? I dont want my first ever buidl to result in melt down :(

Cheers.
Click to expand...
There are two different sensors:

1. 2 "on die" digital diodes buried in the core. Calibrated at the factory apparently. Its supposed to be the most accurate and its the one to watch, if it gets too high the chip will start to throttle back.

2. Motherboard thermistor. Its the one read by a lot of programs, there is always going to be a deltaT (difference) this sensor and the on die. It measures the external temperature of the chip. These readings can be miles out, so don't believe them unless you've verified they're accurate.

I've checked mine (underside of HSF) and the motherboards reads within a couple of degrees, so I'm happy with that ( better than my last Ultra-D that was quite a bit off) , just remember to add about 15C for the true CPU temp.
 
The latest Speedfan (v4.29) reads my Optys core as being around 5-6c higher than the standard CPU temp.
 
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