AMD 8350 core temps hotter than Socket temps

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Pickle81

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Greetings,

I have ran into an issue with my 8350 which is confusing me. I am using a corsair h100i CPU cooler and had to change one of the two fans out that pushes air across the radiator because it started to slow down, and was giving me warnings.

After I did this I was checking to make sure everything was okay, with the speed and notice my core temperature rising rapidly on CPUID Hardware Monitor after i loaded cosair h100i product page on newegg to check the warranty. I shut down my computer, and threw my overclock back to stock, and restarted. My idle temps are reading as follow Package 20c CPU 40 as I write this post.

I tried using prim95 to see if i could reproduce what happen, and I was able to. As soon as I start prim95 my package temps shoots up quickly to 59c and i stop it before it goes further. My CPU temp goes to 47c. Could this be my CPU is bad, or is the Corsair cooling causing the issue? Im really confused on this issue. I dont know which to try. The processor seems fine until i put a full load on the processor then the core temps start to raise up to 60c but the socket stays in the 40c

Link to my Cpuid monitor and CPUID
http://i.imgur.com/iIp2WMT.jpg

This is whats going on when i just open newegg.. Im thinking my processor might messing up. They were climbing when i took this screenshot.
http://i.imgur.com/wpi9lzp.jpg

CPU: 8350AMD
MB: Crosshair V Formula-Z

If someone could help me out here i'd be very grateful.

Regards
 
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Pickle81

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If i leave prim95 going it would keep climbing I never seen the package temps go higher than the socket temperature

This is my monitor read out. The package temp went to 59c 5sec after i hit start on prim95 but my cpu socket temp went to 47c which i thought the socket temp would be higher than the core temp. and this is default stock speeds. With a corsair h100i.
http://i.imgur.com/iIp2WMT.jpg
 
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snowctrl

snowctrl

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Ok, I don't fully get how you're reading your temps - can I suggest you try using RealTemp? Then research what are healthy temperatures for your CPU (sorry I'm more of an Intel man...)


But either way, none of the temps you've listed are dangerous or problematic... Your temperatures will shoot up as soon as you start Prime95, as it immediately puts your processor under highest load, and all your fans should immediately kick in to keep temperatures within tollerances - this is what's supposed to happen, so don't worry.
 
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Pickle81

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Ive had this computer for almost 1year. Ive had it overclocked and never had this issue before. When i go to a website my temps SPIKE http://i.imgur.com/wpi9lzp.jpg This shows im loading newegg, and the temps are spiking.

AMD SAFE TEMPS
72c SOCKET
62c CORE

I understand as the screenshot the temps are safe. But what im saying it before my temps never went this high just by browsing the web. This is low impact processing. Im really thinking my processor might be shot..
 
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snowctrl

snowctrl

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AHA!! I sit corrected. Do please take over helping this guy if you can, now we have a clear picture of the scenario - it is beyond my skill to heal, as Aragorn might say
 
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Pickle81

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Would the temps going this high be due to the cosair h100i failing? all i did was replace the fan on the radiator, and it started spiking insanely. I got dual fans pushing air through the radiator.

I went ahead and took the cosairH100i off and notice the paste was very thin. Some bare spots. Not sure if this is the issue. but will be trying the cpu fan and checking again... if anyone go any ideas whats going on let me know. thanks
 
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Pickle81

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I did that. Arrows were facing down to blow air through the radiator. But two fans and one not blowing correctly would that cause that big of a spike?

UPDATE: I put the stock cooler on, and the temps are good at idle. Question since this is a stock fan and im running stock settings. Should the temps be getting up to max package settings of 61c This is what im getting..

When i run Prim95 about 1min in
CPU Socket TEMP 58c
Packaged core temp 59c

It seems to raise slower, but its still rising. here is what the Max settings were in this screenshot
ws7fFIP.jpg

 
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Pickle81

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Question to add.. I went in to my bios and set everything to default via bios recommendation, and wanted to see if it was something that got changed causing this problem... When i ran Prim95 at full cores my core speed never went up to 4.0ghz

Sorry if im an idiot, just dont want to mess anything up. Whats weird is even at low speeds my temps did not move past 55c on the socket and 56c on the package.
http://i.imgur.com/87GX8Ff.jpg
 
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snowctrl

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Well my understanding is that a stock cooler (ie the one supplied with the chip) should be fine for all temperatures at stock settings, right up to maximum load with something like Prime95 (I prefer Intel BurnTest).

But if you're going to overclock (and if you're like me, you really are), you need an after-market cooler, of which the H100i is a cracking example (I have one cooling my 4930K, and it does brilliantly).

To your q about one of the fans facing the wrong way, and would that make that much of a difference - will it might, depending on your case setup. As an example, my H100i is mounted in the top of the case, the fans blowing from within the case through the radiators and out of the case - but from past experience I know that to make this work most effectively you need to have a build up of air pressure inside the case, so the radiator fans are not fighting against are pressure differences when they try to expel air. This is achieved, at the ost simplstic level, by having more case fans setup to suck air into your case than to blow out of it. This may sound like a minor point, but I've seen setups where there is a clear 'tipping point' where temperatures change from slowly but steadily increasing until they become dangerous, to being perfectly level and safe, the 'tipping' caused by the addition of one extra case fan sucking air into the case.

Hope all that makes sense...

Bottom line is, if you're H100i is setup correctly, your temps should be more than fine at stock speeds, and you're ready to OC. If you're worried about other fans or your case causing heat issues, do your overclocking with the case open, then once you're happy with your OC (ie it's stable and temps are stable), close the case, re-monitor and add or adjust case fans etc to match the open-case scenario...

Again, hoping that all makes sense, and helps

(and never, ever, overlook the proper use of thermal paste...)
 
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Pickle81

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Thank you for responding to my post.
My case is the Corsair Graphite Series 600T Arctic White Steel The Radiator was installed on the inside top of the case The fans were mounted on the outside top of the case, and covered with the mesh top. I had the fans blowing through the radiator, which might have been incorrect, and caused more issue with cooling than I thought it would.

My other fan set up was 200mm fan in front sucking air in. 120mm fan in back blowing out. I also added a fan infront fo the 200mm fan to help push air through the case, since the 200mm seem to hardly push anything. Not sure if this is a good idea or not.

I've had my CPU overclocked or well over 6months now at 4.6Ghz with temps getting mid 50's on the core after 1hour of prim95 testing. This is with case closed. What caught my attention to the temp issue is when i was rendering a video. I always keep my CPUID HWmonitor open to make sure nothing is happening. The rendering of the video took about 4mins, and during that time my temp on the core was reaching 60c. I knew at this point something is wrong, because it never got that high from the past times i rendered videos.

I then started to investigate, and noticed one of the fans when I slowed it down and speed it back up, the fan started to fail in Corsair link program. Another thing i noticed is one of the fans MAX RPM was 2700. While the other only got up to 1700RPM. Which was the one that failed.

I dont know if you could tell me this by looking at yours but do both of your fans go up to 2700RPM when they are set to max or does only one of them?

To continue on, I replaced the bad fan with another fan which i had from an old corsair H50. I mounted it the same way, and started up my comp Monitored the temps while Prim95 ran, and from the past when prim95 ran mid 50c reading was now goign to 60c I stop the run as soon as the temps hit 59c on the core, and then came here to ask if it was something to do with my CPU. But im 96.9% sure its my Cooler. I also put my system back to stock setting, and tried again. Still the same results thats what made me wondering....

I added the stock fan on the cpu and ran it and wow isnt the fan loud. I went ahead and mounted some intake fans on top to blow cool air on top of the heatsink. made the Fan go from 7000RPM on full load down to down to 6200RPM. When i run Prim95 my CPU socket temp stops at 59c, and the core temps stop at 52c. So its either something is wrong with the H100i i have, or the fans are not putting out what they are saying. Which i doubt the fans would cause the cpu to rise that quickly, might have been the pump.

I contacted Corsair support and looking to get this one replaced. I was thinking of replacing it the day the lights stopped working on the pump, but its just cosmetic. Now with this I will be trying to get a new one.

Anyways if you see anything in this post, i could do to fix when i get my new pump in let me know!
 
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snowctrl

snowctrl

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Ok, firstly the H100i tech spec:

http://www.corsair.com/en-us/hydro-series-h100i-extreme-performance-liquid-cpu-cooler

... says the fans spin at up to 2700rpm (+/-10%), so at max they should both be running at similar speeds, around 2700rpm.

Your PC has been running fine for 6 months, then suddenly you get a slower fan and increased temps - your fan is faulty, so you replaced the fan, fine.

You replaced it with a fan from a Corsair H50 - well if you check the specs on the H50:

http://www.corsair.com/en-us/hydro-series-h50-quiet-cpu-cooler

... you'll see that the fan that comes with the H50 is rated for 1700rpm max speed - so the fan you've fitted will not do as a replacement for the faulty fan on your H100i, and will consequently not cool your CPU as well. you need to get a proper replacement for the H100i fan:

http://www.corsair.com/en-us/case-fans/popular-fans/static-pressure-fans

... unless your H100i is still within warranty in which case just contact Corsair directly.

To the others points raised - if your PC was running fine before with the case closed, then don't worry about it, your other fans are likely contributing little or nothing to the problem (though cleverly re-arranging them may still bring you a further cooling benefit...)

 
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