Can a CPU get too cold, are my numbers okay?

danielbsipe

Honorable
Aug 14, 2012
221
0
10,760
I just installed a FX-8350. I have only used PIIs in th past. They usually ran 25C to 50C from idle to load under air (Zalman cooling). Using the same Zal, the 8350 is reading 10C to 35C from idle to load. Should I be concerned with these temps? Are my numbers wrong? Can anyone suggests a good temp monitor? Thanks!

 
Solution


acutally a cpu can get to cold but not by air/water cooling, at a business by my house then have a liquid nitrogen cooled pc that actually locked up from temperatures of about -100 C but his temps are fine
 



Actually they do look erroneously cool. 10C = 50F. Since the CPU can't be cooled lower than the ambeint temp by a fan you're either running your PC in a walk-in freezer or that's an error. 35C is awfully cool at full load too.

What program are you using? Have you checked the temps reported in the BIOS?
 
i dont believe thats correct, 10c= about 50 fahrenheit, which means that the air cooler would make the cpu colder than your ambient temps....unless youre in a 40 degree fahrenheit room. you might try core temp or hwmonitor to compare your numbers. it could also be that you have a bad sensor.
 




I just did a google search and the new FX chips sometimes read 10C cooler then the monitoring software is reporting. It might just be the case for the OP
 


My thought exactly. I'm in my 24C living room. The bios also disagrees with the monitor. Bios says i'm idling around 32C. I am using core temp to monitor.
 
I do not think your temperatures are reading correct.
10 C = 50F; Therefore for a reading of 10 C your room (ambient) Temperature of LESS than 50 F (about 45 F).

... A cpu temp can not be below ambient temp unless using a special cooler designed to cool below ambient.

.. need to try a different program to read temps.

WOULD delete my post as covered above - don't see delete post.
 


Because silicon's conductive properties reduce past a certain point until temps drop to a point where it is almost non-conductive.
 
FX cpus do that. Not just with a nice zalman or a noctua, but also with a stock AMD cooler. It is so common and I've seen so many threads on this, that actually I now consider this to be the normal behavior of top of the line AMD cpus. Bulldozers are worse. My room mates 8120 reports 19C with an ambient temp of around 28-30C.

I've not come across any accurate explanation on this and only some (near majority) and not all chips behave this erratically. No one seems to know why is there a negative offset or is it an issue with manufacturing tech. I'd say you are fine. Monitor your socket temps (CPUTIN), which is always higher than the core temp and just ensure it's a safe distance(actually it can be equal too) from the maximum specified operating temp of the cpu package (TCase).

Unless you are observing thermal throttling and performance hits, no need to get anxious.

good luck
-Satyam
 


+1^^ That's just how they are at idle. The closer you move to 40c the more accurate FX chips are. After 40c and up they are very accurate.
 
Solution
My cpu is water cooled in a 65F room and using HWMonitor it's running at 55F. Strong corsair powered liquid cooler. I prefer my processor to be cool so I custom installed it.
"Cant be cooler than room temp" that's total bs. So next time, as long as it isn't running hot, just be happy.
 


not bs, thats just how it is unless you're doing something like ln2 cooling.

this thread is from 6 months ago, mods please select a best answer/close it so it wont keep coming back from the dead