4770k Running at high temps with prime95

[dn7309]

I have prime95 and my 4770k is running pretty hot. When I saw hot I mean hot with temperature spike to 90C and then hovers around 65-70c with Noctua U9B under stock speed. While running Prime95 my 4770k tops out at 3.7 ghz with all 4 cores.

I could be the case that I got dud CPU not maybe I don't. Not really sure since I don't know if this is normal for everyone else.

And if I do have a dud cpu, is it possible for my cpu is fry or be damaged under stock speed, ever?

 

[ShintaiDK]

90C as such is not an issue. At stock speed as you run the tjmax is 100C and garanteed for its entire lifespan. (It throttles at 100C).

And 65-70C under prime95 is relatively cold.

 

[ChronoReverse]

90c with Prime95 (assuming it's a recent version with AVX support) is absolutely normal.

 

[Racan]

What Prime95 version are you running? Try the 28.5 beta, makes Haswell burn

ftp://mersenne.org/gimps/p95v285.win64.zip

 

[Smoblikat]

Those temps seem perfectly fine to me. I believe TJmax on those CPU's is about 100*C, so 90*C for short periods of time has nearly 0 detrimental effects.