CPU running hot

[H3ndo08]

Hi all,

Recently upgraded my Gigabyte 78LMT-USB3 motherboard to a MSI 970 Gaming. The change went fine for two days until my 500w psu blew. I bought a new corsair 600w one and the system is up and running again with one slight issue. My AMD FX 8350 CPU is running a lot hotter than it used to on the old motherboard. I am using the same Nocuta NH-9US cooler and have replaced the thermal paste and re-seated the heatsink a few times now in order to try and solve the problem. This has come to no avail.

Before, on the old mobo, the cpu idled at around 30C and maybe up to 55C while gaming, but now it idles at around 45-50C and has reached 71C during a test playing Fallout 4. It also has random 10-15 degree jumps while idling.

I have read that 60C is the safe maximum for the FX 8350 and would be scared to just leave the problem and use it at 60+. Would a different mobo cause it to run hotter? Is it a fault with the sensors either in the old mobo or the new one?

Does anyone have any advice on this issue?

System:

CPU: AMD FX 8350
Mobo: MSI 970 Gaming
GPU: EVGA Geforce GTX 750Ti FTW
RAM: 2X8GB Kingston HyperX savage 1866Hz
PSU: Corsair CX600
Case: Cit Vantage
Cooler: Noctua NH-9US

 

[Faux_Grey]

It sounds weird.

But I'm thinking the last PSU wasn't giving enough power for your CPU to run as fast as it should?

Either way, a maximum temp of 71 is nothing to be worried about.

 

[H3ndo08]

Thanks for your answer, it's much appreciated!

According to all the online wattage calculators the system should only use 380W so 500w should be good enough...however it wasn't a greal psu by the looks of it.

It's just the fact that it's temperatures have increased by 15C on average I found it strange for it to do so.

I have read that AMD recommend 60C max temp so would 70C be fine?

 

[H3ndo08]

And also, the 70C temp was only athe 65% load :/

 

[CountMike]

Depends which temperature you are talking about. Core temp limit is ~62c max and Package temps up to 90c. AMD Overdrive program may give you more accurate temps.

 

[H3ndo08]

I'm using HWMonitor and under the CPU section (not tmpin1) is where I'm taking the reading from.