I have an FX-8320 and a Asus M5A99X Evo R2.0 that I bought in September 2013 and a Noctua NH-U14S that I bought in December.
At stock clocks (3.5GHz) it idles at 37 degrees celsius and under full load prime95 (top option) it runs at 59-60 degrees celsius according to both HWMonitor and Speedfan (after 5 or 6 minutes, stopped it because it got over 60 degrees celsius). I looked at this again after I got the high temps @ 4GHz
At 4GHz it idled at 39 degrees celsius and under full load prime 95 (top option) it runs at 66 degrees celsius (after a minute or two. stopped it because I was afraid the chip would be damaged and I don't have the money to replace it) according to HWMonitor and Speedfan.
What would cause these high temps? I've read that the max safe temps for an 8320 is about 60 degrees celsius. Also I'm positive they were much lower before. Do I need to reapply thermal paste?
Also in case it matters I am using Windows 8.1 Pro (incase there is some sort of incompatibility).
Possibly too much/little thermal paste or simply a bad overclocker. Have you tried lowering the voltage at the a stable clockspeed until it's unstable? How experienced at overclocking are you?
It's all about the thermal paste, maybe you didn't apply it right.Or like the guy above me said it may be just a bad overclocker. Just think what you did different last time that you did this time.
I suggest reapplying thermal paste, then going by this guide to overclock your CPU to what you need:
I'm not very experienced at overclocking. I have overclocked it in the past and had it at 4.1GHz stable for a while, but somewhere along the way I reverted it back to default settings. I feel like I might have messed up applying the thermal paste the more I think about it, since it was early in the morning when I installed it and it was the first time I ever applied thermal paste.
Ok, I'll reapply thermal paste when I get home tomorrow, too much going on in my house to do it now (only safe place in house to work on it that doesn't have carpet is the dining room. I'll try using that overclocking instead when I give it another go tomorrow. Thanks for the advice and the link to the guide
looks like you are looking at the socket sensor temperature.
the cpu itself does not have a thermal sensor but instead uses some kind of black magic to find out its temp. (ok now seriously i dont have a clue how the core temperatures work)
you can see that its not the core temp cause the temperature readings are usually all over the place at idle moving from -°C values all the way up to 20-30°C
Leave you voltage and everything in your bios set to auto. Disable turbo boost and CPU level up. Change your multiplier to 20 to get your 4.0ghz. In your configuration disable all power saving modes like C6 etc.... F10 save.
Another big factor is the temp of your computers room. In a warm room 75f or warmer its gonna be hard to keep the temps down.
I have a FX8320/AMD FX Liquid Cooler and Asus Crosshair Formula board. I have my [email protected] on stock (auto) voltage. Room temp 72f, idle temp 36c, gaming 48c.
In the winter its about 68f in my office then all my temps drop around 4-5c, idle 32c, gaming 40c.