cooler than ambient?

[Herosandwich]

just built a new system after a decade of fighting with a late gen Pentium, the bios is reporting average looking temperatures, about 28-30C at idle, (this is an fx 8350, on an asus m5a99fx r2, and a cooler master gemini heatsink, with a secondary case fan pushing air into the cpu fan from the case side panel) the problem is, the bios seems to report the temperature just fine around 30c idle, but when I come into any sort of coretemp, or amd's overdrive temperature sensors, I get an erratic idle temperature, much of which is below ambient, in the area of 9 to 20C, doing stuff like browsing the web, teamspeak, et cetera. I doubt my hardware is defective, it seems more like this is a software issue... thanks in advance for any advice.

 

[Drew010]

AMD's FX CPUs are well known for reporting erroneous core temps when not under a lot of stress. If you were to fire up Prime95 and then look at the core temp, it would be accurate. No need to worry about the core temp when you're just browsing unless it is abnormally high.

 

[cliffro]

My old Phenom II x4 840 had ridiculous temps as well. Even in the summer with no AC it would idle at like 18c according to Open Hardware Monitor/HWMonitor/AMD Overdrive. I don't recall the load temps, but I think they were off as well. I was using a CM Hyper 212+ on mine.