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Fx-8350 and hyper 212 evo temp problem

post #1 of 38
Thread Starter 
Hey guys, I recently just installed a Hyper 212 EVO cpu cooler on my AMD FX-8350 cpu. My motherboard is a ASUS m5a99fx pro 2.0. I noticed when i put on turbo mode, which pushes the cpu to 4.3 ghz and I run prime 95 my temps on full load go to 65-68 c using speed fan and hwmonitor to monitor temps, while core temp says my temps are 46 on full load on all 8 cores. I reapplied thermal paste and mounting 3 times already. What is wrong?
post #2 of 38
That 68c reading is actually your socket/VRM temp. The 6 phase M5A is going to need some additional cooling on the board to run the 8350 OC'd. A fan on the VRM and one behind the mobo on the sockr=et area did the trick for me.

dlp0rt.png

2guh1km.jpg

This dropped my socket temps by 10c
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post #3 of 38
Thread Starter 
Also my idle temps is 34-36 c
post #4 of 38
Quote:
Originally Posted by mnicassio89 View Post

Hey guys, I recently just installed a Hyper 212 EVO cpu cooler on my AMD FX-8350 cpu. My motherboard is a ASUS m5a99fx pro 2.0. I noticed when i put on turbo mode, which pushes the cpu to 4.3 ghz and I run prime 95 my temps on full load go to 65-68 c using speed fan and hwmonitor to monitor temps, while core temp says my temps are 46 on full load on all 8 cores. I reapplied thermal paste and mounting 3 times already. What is wrong?

The 212 isn't a very good cooler for the 8 core vishera's.

Edit: Make sure you are reading the correct temp also, core temp and socket temp sometime confuses people.
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post #5 of 38
Quote:
Originally Posted by cssorkinman View Post

The 212 isn't a very good cooler for the 8 core vishera's.

Edit: Make sure you are reading the correct temp also, core temp and socket temp sometime confuses people.

You don't want the core temp above 62 and you don't want the socket temp above 72. The Evo 212 isn't the worst cooler for that CPU. If you haven't done so already, I'd add another fan on your cooler for a push pull configuration.

I also OC manually not using the ASUS OC in the BIOS or the AI Suite.

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post #6 of 38
Quote:
Also my idle temps is 34-36 c
If thats more than 5C above room temps, then you need some better case cooling. (If less than 5C difference, you need a cooler room, heh)

If youre using stock and auto settings, chances are the voltages are set too high for that speed. With the EVO, you should be at those temps in the 4.5 - 4.6 ghz area at around 1.4v or so vcore

Overclocking guide here:
http://www.overclock.net/t/1348623/amd-bulldozer-and-piledriver-overclocking-guide-asus-motherboard/0_20

A fan on the back of the mobo and a fan on the vrms tilted towards the socket will reduce socket temps a lot and help prevent throttling.
According to the new Amd OverDrive program, Thermal Margin max is 72C on the core and the socket can go 10C higher, but youre liable to throttle before then.
Edited by cpmee - 4/22/14 at 8:25am
    
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post #7 of 38
Quote:
Originally Posted by cpmee View Post

If thats more than 5C above room temps, then you need some better case cooling.

If youre using stock and auto settings, chances are the voltages are set too high for that speed. With the EVO, you should be at those temps in the 4.5 - 4.6 ghz area at around 1.4v or so vcore

Overclocking guide here:
http://www.overclock.net/t/1348623/amd-bulldozer-and-piledriver-overclocking-guide-asus-motherboard/0_20

A fan on the back of the mobo and a fan on the vrms tilted towards the socket will reduce socket temps a lot and help prevent throttling.
According to the new Amd OverDrive program, Thermal Margin max is 72C on the core and the socket can go 10C higher, but youre liable to throttle before then.

idle temps are completely inaccurate ,


but I do agree 4.4 - 4.7 @ around 1.40-1.44 depending on the LLC settings


vrm cooling is a must
 
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post #8 of 38
Quote:
idle temps are completely inaccurate ,
Core temps are completely inaccurate until about after 45C, socket temps which hes reading are reasonably accurate.
    
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post #9 of 38
Thread Starter 
I have a little 80mm fan lying around. Should I mount it to vrm heatsink or behind motherboard.
post #10 of 38
If you have enough air flow and space behind there, I would mount it behind the motherboard first, then look around for a 60 to 70 mm fan for the vrms. Both should be used, but the backs gonna give the biggest reduction in socket temps.
    
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