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Thread: Warmer motherboard Temps

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    • atomictom's system
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    Warmer motherboard Temps

    Awhile ago i cleaned out my pc and cleaned out the carpet of dust that had formed over my heat sink of my CPU between it and the fan. Being the numpty i am i stuck the fan on backwards so instead of blowing air it was sucking. so 2 months on i realize and switch it round.(stock cooler btw)

    now on idle i used to get mobo temperatures of about 29 degrees but now i get 34/35 degrees just browsing. the only change to my system has been changing a 9500GT over for a HD7950 i'm borrowing from a friend(it was when i had the side of the case off after installing i noticed the reversed fan)

    i do get lower CPU temps(2 degrees less idle) but even in the suck configuration it rarely went past 49 degrees on load(1090t hex core 3.2GHz).

    my motherboard is a M4A89GTD PRO/USB3

    So i was wondering is the more meaty graphics card causing extra load on my motherboard thus heating it up more or is the reversed fan entirely responsible?

    Also in you guys opinion is it worth having a 2 degree hotter CPU for shaving 6 off the chips on my motherboard?

    Oh and does anyone know the maximum temps that should be allowed on this mobo? havn't been able to find that out myself.

    Thanks

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    Re: Warmer motherboard Temps

    If your case side is back on then that card is going to produce more heat inside. You don't really mention what other fans you have.

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    Re: Warmer motherboard Temps

    The GPU is probably dumping some heat into the case, rather than causing the motherboard itself to heat up. Usually it's heat radiating from the back(top when installed assuming the usual tower setup) of the card. Which can heat the northbridge up a little, as they're normally only a few cm apart at most and the temp sensor is usually in that area.

    Also worth remembering the last couple of week have been scorching, which will affect your temps.

    Max temps are a bit personal and subjective rather than objective, as it's more to with longevity than anything burning. Anything below 60c is absolutely fine for CPU and Mobo. GPU's tend to be hotter, getting closer to 100c in some cases, but I've seen systems running perfectly stable far beyond these, even though I wouldn't have mine that hot.

    I'd say leave your fan's on the right way round. Your CPU is going heat up much faster and generate much more heat in total under load, than your northbridge, 140w for your CPU compared to 22w for your NB. So focus on cooling that. That's why the stock design is that way around, to provide maximum cooling to the CPU and then the surrounding components secondarily.

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    • atomictom's system
      • Motherboard:
      • M4A89GTD PRO USB3
      • CPU:
      • 1090t X6 Phenom ll 3.2Ghz Black edition
      • Memory:
      • 8GB
      • Storage:
      • 240GB SanDisk Extreme, 250GB Hitachi Deskstar, 1.5TB Western Digital Green
      • Graphics card(s):
      • Radeon HD7770
      • PSU:
      • Corsair AX760
      • Case:
      • T26 Sharkoon Blue
      • Operating System:
      • XP, Windows 7 and Ubuntu

    Re: Warmer motherboard Temps

    @demonwar, i only had the side of the case off initially after installation. all the temperatures mentioned are with the side panels in place. sorry i didn't think to mention other case fans. i have 2 x 120mm blue LED fans at the front of the case and a 3rd 120mm at the back(sorry i don't know the CFM all three came with the case). Its a bottom mounted 120mm PSU that i'm using too just so you know a rough layout.


    @chuckskull, Thanks. i was wondering whether it was the GPU purely because its in the 3rd slot from the bottom so its a fair distance from the major components near the top.

    True that its been hot, but today(well yesterday i spose now) the temperature in the room was lower and i was getting higher mobo temps and lower cpu temps after this so i thought to discount that.

    100C is excessive, i wouldn't be able to stand knowing my components were that hot.

    Thankyou both for your answers

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    Re: Warmer motherboard Temps

    Quote Originally Posted by atomictom View Post
    100C is excessive, i wouldn't be able to stand knowing my components were that hot.
    +1

    that is a little too warm for my liking too

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