CPU temperature instability. Help Needed!!

[kevdit]

CPU: FX 6300
CPU COOLER: Hyper Evo 212
Motherboard: Biostar TA970
Windows 8.1

Hello,

Just recently, HWMonitor has been giving me inaccurate readings in regards to my CPU temp as well as its power. At idle, it'll go from around 29 C (normal) and then drop all the way down to 17 C. Then, it'll go back up to 29 C and repeat this process infinitely. The power is also jumping from 21.60 W to 30.70, sporadically increasing and decreasing. I use SpeedFan to control all my fans, and I was also getting sporadic readings from it as well. Keep in mind that my readings were completely fine until a few days ago. Here's what I did so far:

-Uninstall and reinstall HWMonitor
-Uninstall Speedfan - perhaps there was a conflict with speedfan sensors and MOBO's sensors?
-Virus scan with AVG, Malware Bytes, Iobit Advanced System Care, CC Cleaner

I'm starting to think that maybe the CPU sensors are starting to malfunction. I find it weird that both the temperature and power readings are going haywire. Will this cause cooling issues from the cpu fan in that it can't get a stable reading? Any help greatly appreciated. Thank you!

 

[Barney6262]

are you able to send a picture of a temp graph?
CPU temps normally jump up and down.

 

[Powerbolt]

Check your motherboard.

Biostar makes horridly unreliable motherboards. I had one that was partially DOA, and it wouldn't boot into the OS with any sort of CD in the drive. Even then it took 10 or more reboots to successfully boot up.

 

[nullifier]

Does your mobo report temperatures in the BIOS? If so, watch your temperatures there and see if the fluctuation still exists independently of the aforementioned sensor readout programs. If it does fluctuate, I would save a copy of your BIOS (if possible) and reset to default to ensure there wasn't an accidental misconfiguration.

If the sensors are still wonky, I would then see if a BIOS update is available. If that didn't resolve it, then perhaps the sensors themselves are off on the motherboard -- I have had this happen to me in the past (showed 70C immediately after a cold boot with proper compound and heatsink installation).