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APU Temps - What is normal?

Discussion in 'Overclocking & Cooling' started by dom99, Feb 12, 2014.

  1. dom99

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    Hi,

    I have just built the following HTPC:

    Case - Streacom F1C Evo
    PSU - 160W PicoPSU with 150W Brick
    CPU - AMD A10 7850K
    MB - Asrock FM2+ A88X ITX
    CPU Cooler - Noctua L9a
    RAM - 4GB (stuff from old PC)
    SSD - Samsung 830 256gb

    I havent tested it thoroughly yet as at 2 in the morning the wife was nagging about WTF I was doing when I had to be up for work at 6 :)

    But I noticed when I enetered the Bios the temperature readings were idling at around 49 - 50 Degrees!

    In comparison my Intel i5 4670K @1.239V Idles at around 30-35 Degrees.

    This was all done with the lid off the case so in an open air environment.

    My question is, what are the normal temperatures (idle and gaming load) of an APU? I have searched the internet but cant seemto find any reviews of the A10 7850K with temperature tests.

    Thanks for your help!
     
    Last edited: Feb 13, 2014
  2. dom99

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    EDIT: on a side note, I had loads of trouble with my windows 8 instal on this machine. I think it was becasue I didnt format or secure erase the SSD from the previous build before installing. It was spitting out kernal errors, thread exception errors and just every BSOD error you can think of. Next time I will not just delete the partitions and think that is enough!
     
  3. RCoon

    RCoon Gaming Moderator Staff Member

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    I believe max operating temps of AMD chips of 65 degrees, so idling at 50 degrees is not normal. I have a HTPC at work running a 6800K and at full load (encoding videos) it maxes out at around 55 degrees. Check your thermal paste, check your heatsink contact etc.
     
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  4. dom99

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    My motherboard temperature also read as 50 Degrees, my motherboard is the Asrock A88X ITX.

    If it was a problem with the CPU cooler being seated incorrectly or thermal paste, why is the motherboard that hot too?

    I feel a complete novice when it comes to APUs
     
  5. RCoon

    RCoon Gaming Moderator Staff Member

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    Treat an APU no differently than a normal CPU. What's the airflow like in that case? Does all the air coming out of the case feel quite hot?
    Is your CPU cooler plugged into the CPU FAN pin header?
     
  6. dom99

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    I have the case totally open at the moment and no the air does not feel hot from what I can tell, the CPU cooler is working just fine.

    Hmm I will test it further when I get back tonight, but where did you get the 65 Degree maximum figure fro? I'm just curious?

    I do still have to update the motherboard bios to the latest version so that might chnage somehting I suppose. I will report back later this evening
     
  7. RCoon

    RCoon Gaming Moderator Staff Member

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    It's been a common AMD chip figure for a couple of years, as far as I'm aware it hasn't changed. I've known it from AMD spec sheets since the first FX chips came out. Updating the motherboard BIOS would be a great idea. Also if you can get windows to be stable, I recommend installing HWinfo and running it with sensors only. That should give you accurate readings of volts and temperatures for your CPU, I use it for both work and home workstations.
    Do note that AMD's on-chip temperature sensor is not so great.

    Best of luck
     
  8. Jetster

    Jetster

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    Just make sure the Heat sink is seated properly and you have airflow. APU have issues with temp sensors. Run the ASRock Extreme tuner that came with your motherboard and see what it says.

    Do not use HWinfo. Its not updated for AMD APUs and its not a FX chip
     
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  9. RCoon

    RCoon Gaming Moderator Staff Member

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    Both my 6800K and 750K seem to report temperatures perfectly accurately on HWinfo?
     
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  10. Jetster

    Jetster

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    Last edited: Feb 12, 2014
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  11. RCoon

    RCoon Gaming Moderator Staff Member

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    I've also just discovered the 5600K mule in the corner of my office running 24/7 idles at around 45 degrees (it sits and records things off of internet TV). It's sat in a Fractal Node with stock cooling. OP is only 5 degrees ahead of that in terms of idle temps. I'm not sure how much better the L9a is supposed to be at cooling than the stock APU cooler.
     
  12. dom99

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    Hi,

    Windows is now stable, needed to update the bios I think becuase it didnt fully support the new processor. I was also getting kernal BSODs before entering windows so re-seated my RAM too.

    I dont know whther temps are an issue or not, the temperature in the bios is still reading as around 50 degrees, but I cant find a good temperature monitor to check it with. I have tried CoreTemp and HWInfo. CoreTemp was saying my temps were 0 - 18 degrees idle, which I find hard to believe, and HWMonitor couldnt get a temperature readout.

    Are there any more recommendations?

    I dont want to stress the CPU before making sure its idle temps aren't genuinly at 50 degrees because if they are something must be wrong. When I touch the heatsink or feel for warm air, I can only feel it being warm from the PicoPSU and not the CPU.
     
  13. Jetster

    Jetster

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    Your motherboard came with temp monitoring software. ASRock Extreme tuner
     
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  14. dom99

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    Would that be the A-Tunning software? Ill try that when I get in back this eve
     
  15. GreiverBlade

    GreiverBlade

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    yes A-Tunning is kinda the new AxTu (ASRock Extreme Tuner)

    my configuration is a ASRock FM2A88M Extreme 4+ but i have a Athlon X4 760K instead of the 7850K atm so my idle temps of 26° MB 30° CPU (oh well idle ... not that much: video playback internet browsing and some other joyful things is what i call "idle") are not too relevant for a APU but my A10-5800K rarely(aka : never) hit 50° in idle, no stock HSF ... NEVER! the A10 : minimal CM Hyper Tx3 Evo (thanks the Node 304 and the comfortable height for the HSF) the X4 is under a Katana 4... for a limited height case i would recommend something like a AXP-100 (Thermalright) or another "low profile" with good review, the L9a is good but it's not what you can call a performer... all review i read about it was on the conclusion "better than stock but not that much" basically : more silent but not better on the temps.
     
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  16. Pill Monster

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    That's an interesting comment, because AMD have never publicly released thermal design specs for Bulldozer based processors. HTC limit is 90c.
     
  17. RCoon

    RCoon Gaming Moderator Staff Member

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    Most of us who watercooled and OC'd the FX chips are well aware of a common maximum temperature being the area of 65 degrees (centigrade). That being said the APU's have a higher maximum operating temp after some research which has already been mentioned.
     
  18. Pill Monster

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    Based on what?
     
  19. RCoon

    RCoon Gaming Moderator Staff Member

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    The internet

    @d1nky

    shutdown temps are 70C

    Source
     
  20. dom99

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    Thanks for the input, I chose the noctua cooler because it has such a low profile. I know it's not the best but at only 37mm tall it was the perfect fit for the case, I saw a review of the intel version (l9i) on an i7 2600k and at stock in a SFF case and it was better than the stock cooler by a margin, but admittedly not much, as I say the appeal for me is in the height
     
  21. Pill Monster

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    Don't believe it. That info applies to A64 and Phenom architecture only, not Bulldozer.
    I hate to dis other sites but ocn is not what it used to be....it's way too big now and is a breeding ground for misinformation. (Majority of members there seem to be registered for 1yr at most if that's anything to go by).


    BD/PD has a HTC (hardware thermal control) limit of 90c and that's really the only number that means anything. This is the temp at which the processor will shut down before it is damaged.

    There is no 62c or 65c or 70c limit for BD/PD as has been mentioned on various sites around the interwebs....it's urban legend. 62c was for Phenom II.

    Naturally running your FX at 80c all day long is not ideal, and I'm not saying it is. Just want to clarify that the 60/70c thing is hearsay.
    A CPU is ASIC similar to GPU, so they are comparable when it comes to thermal design....and no GPU has a 60c ceiling...if u see what I mean. :)

    .
     
  22. RCoon

    RCoon Gaming Moderator Staff Member

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    the L9i is a really nice cooler for that purpose, and even though it's quite small, it's still better quality than the stock cooler. Just done another quick check, and this 5600K is idling at around 36 degrees on the stock cooler at the moment.

    Dude, go take it up with a question to AMD support, and stay on topic for the OP. I'm just stating what me and other members follow as rule of thumb, feel free to PM me when an AMD rep gets back to you on thermal limits. Until then, stay on topic and help out the OP.
     
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  23. Pill Monster

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    I am helping out the OP by correcting misinfo you're giving him. You stated you had seen the data sheets for FX, which was a lie, and I knew it was a lie. Don't say things that aren't true.

    You're just butthurt because I called u out.
     
  24. dom99

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    I've just decided to do some case modding, get rid of the original top to the F1C Evo, and replace it with some quality mesh, and attach a silverstone 180mm air penetrator = Cooling Overkill :)

    Edit: although that means I wouldnt have room for the Optical drive, which is why I got the low profile cooler in the first place
     
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  25. RCoon

    RCoon Gaming Moderator Staff Member

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    I have myself an air penetrator 180mm in my case, and it is truly a glorious cooling machine.
     
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