Just to be sure, are these CPU temperatures okay?

[DippingSauce]

Hi everyone!

I got my new CPU cooler in the mail today, installed it all properly, huge thing but seems to work like a charm.

I overclocked my i5 4690K to 4.2 Ghz on 1.150v. First time I ever overclocked, but these days it's not magic anymore so I think I did all right.

Temperatures while idle are around 33-35
Temperatures while in different games stroll between 55-60


Just wanted to check, are these temperatures acceptable? Good? Bad? It's always a bit scary when doing stuff like this for the first time


Kind regards,
Daan

 

[airplanegeek]

Those temps look great but are you sure it is fully stable? 1.150V seems pretty low unless you get a darn good chip.

 

[DippingSauce]

Not sure yet! Going to test it for about 6 hours with Prime95 tomorrow, we'll see how it goes.

What would you recommend for voltage then? And what would the max temperatures look like?

 

[airplanegeek]

Well voltage depends on each processor but I would have expected somewhere around 1.2V for 4.2GHz, of course to get higher you will need more. Things get a little hairy once the temperatures start going 80s, so that is where you should stop. Technically anything under 1.4V is pretty safe but your cpu will overheat too fast so stick around 1.3V max. But each cpu is different so you need to test for yourself.

 

[DippingSauce]

Then one last question.

I did do a short stress test with Prime95 and with LinX, and both tests made the CPU temperature go upwards to 78C. Adding more voltage would get it above 80C. However, I read people saying that you shouldn't really look at the temperatures since these are extreme.. And indeed doing a test with Cinebend got the CPU temperature to about 55.

So should I be worried by these tests or for temperatures just test it during gaming myself?

 

[Karadjgne]

I would start out with @1.208 and run prime95 version 26.6 (think that's the one). The latest versions have reported funky temps and don't utilize the cpu the way it should.

From there, if after an overnight test, you are still stable and no errors in Windows event viewer, then start lowering the voltage, 1.2,1.192,etc running prime each step down for at least an hour. Soon as an error shows up in event viewer, step the voltage back up 1 step and run an overnight. If you get no errors, then you are clean and stable as you can expect.

As far as temps go, your reported temps look good, but prome95 can and will put them in the 70's or higher easily.

 

[CompuTronix]

Guys,

Here it is again:

" ... Core i 2nd, 3rd and 4th Generation CPU's have AVX (Advanced Vector Extension) instruction sets. Recent versions of Prime95 run AVX code on the Floating Point Unit (FPU) math coprocessor, which produces unrealistically high temperatures. The FPU test in the software utility AIDA64 shows the same results.

Prime95 v26.6 produces temperatures on 3rd and 4th Generation processors more consistent with 2nd Generation, which also have AVX instructions, but do not suffer from thermal extremes due to having a soldered Integrated Heat Spreader and a 35% larger Die. ... "

Please download Prime95 version 26.6 - http://windows-downloads-center.blogspot.com/2011/04/prime95-266.htm

Please run only Small FFT’s for 10 minutes.

Your Core temperatures will test 10 to 20C lower.

Please read this Tom’s Sticky: Intel Temperature Guide - http://www.tomshardware.com/forum/id-1800828/intel-temperature-guide.html

Thanks,

CT