AMD Athlon X4 750K Temperature

physloww

Honorable
Sep 14, 2013
13
0
10,510
Hello everyone ! I bought a new cpu yesterday and I really like its performance. I wanted to check its temperature after 10 mins of gaming on max settings in AC and I used AIDA64 (because I've used this program earlier) and it has not temperature for my mobo and cpu. I downloaded HWMonitor and it showed me 71C..I turned off AC and temperature started to reduce but it jumped like 71-65-58-40-60-64-55-72-62-59 every 0.5 sec. When I touched my CPU cooler it wasn't warm at all. Then I went to the BIOS and it showed that my cpu temp is 34C. I used CoreTemp, but it shows that my cores are like 1-4C (lol). I bought this processor yesterday and I used stock thermal compound which was on the cpu cooler.
What program should I try or is it driver problems ?
 

crisan_tiberiu

Distinguished
Nov 22, 2010
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19,660
i have made for my parents a PC with the A4 3400, and i have the same results as you. Like 8 - 10degrees celsius /core...Like wtf, tried updating BIOS, latest drivers. The only temp that is more acurate is the Tcase temp... I think that is AMDs fault with the /core sensors ^^, you cant do anything.
 

physloww

Honorable
Sep 14, 2013
13
0
10,510
Just did a strees test using HeavyLoad and HWMonitor showed me 85C but in BIOS 45-50 and when I touched the cpu cooler it was quite warm, so does that mean I have to trust BIOS more ?
 

physloww

Honorable
Sep 14, 2013
13
0
10,510
I'm sure it is mounted correctly, the cooler is very firmly on the cpu, (I could actually wave the motherboard with gpu and ram on by holding the cooler), also when I did strees test under 100% load it was getting warmer
 
Ah! The dichotomy you have witnessed is because it is standard to have two sets of temperature sensors for monitoring CPU temperatures. The first set is the CPU Socket temperature, which is great for monitoring idle temperatures, but since it is in the socket, the readings at load are usually 5-15C higher than what they may actually be. Which is why there is the second set, the on-die CPU Core temperatures; these readings are "corrected" by a type of equation as such that they are most accurate at load, but at idle they are inaccurate (often below ambient).

Core Temp is reading your on-die CPU core temperatures. For a convenient, consistent load, get ahold of Prime95 and run a test, oh, for about a half-hour at least. You'll have a pretty good idea of how your cooling solution handles your processor.