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Thread: Quad core temps...




  1. #1
    Join Date
    Feb 2009
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    Default Quad core temps...

    I have recently put together a new computer :-

    Intel Quad Q9650 3.0ghz
    Gigabyte EP45-UD3 Mobo
    Nvidia GTX 295
    Corsair HX 620W ATX2.2
    4Gb G.Skill DDR2 1066

    However I have noticed that when running prime95 core 0 can reach 72c whilst the other cores reach around 65c. At idle they all read around 41c. Its the same when playing games although only reaching about 69c Max (core 0 is always hotter by 6-8c). I've tried remounting cpu and cooler (intel stock hsf) 4 times using Artic silver paste making sure I've pressed the pins in so they click and in different orders and also rotating the cooler. So I'm sure it's not that. Should I be worried about the temps especially as I've only had the computer running for a week (not much break in time for thermal grease). I've had absolutely no instability or problems so maybe I shouldn't worry? Perhaps the core 0 sensor is reading slightly wrong?

    Thanks so much for your help :)

  2. #2
    Join Date
    Sep 2008
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    990

    Default Re: Quad core temps...

    It's just inaccuracy of the temp sensor, after all this is a CPU and not a calibrated thermometor. Some CPUs have one or more very inaccurate sensors, but I wouldn't worry about it.
    If you think about it, it does not make sense that one CPu core which is in the same die as another is 7C hotter than the other, thats not really possible since the die conducts heat to well for that.


  3. #3
    kick's Avatar
    kick is offline Senior Member
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    Default Re: Quad core temps...

    theres a lot of stuff around on the net about that,its not uncommon.
    Its allways core 0 or number 1 of 4 that gets the hottest when it happens.
    I get a 9* variation on high clocks.
    I use the high temp as "the" temp,it doesnt go over 65.
    The second and 3rd core go to inbetween 1 and 4.
    temp spread is like 64..61..61..58.

    My old dual(820d) when reviewed,used to puzzle peoplethat it wouldnt overclock more,but apparently whatever temp sensor is on it only measures one of the2 sanwidched pentiums.,must have been the lower temp one?
    The general advice is to use the hi temperature,I suppose it makes sense,if one core is at 72,whether thats too high or not is up to you.
    Last edited by kick; 03-15-2009 at 07:46 AM.
    Current Systems:

    Asrock p67 Extreme6.............. Gigabyte EP-45 UD3 ...................... Gigabyte 73 PVM S2
    Intel i5 2500k 4.8ghz................ Intel Q8400 3.8ghz......................... Intel D820 2.8ghz
    Zalman 10x cooler.................... Coolermaster V8............................ HP cooler
    8GB Gskill ripjaw ddr3.............. 4GB Gskill PI ddr2.......................... 4GB samsung ddr2
    60GB ssd/500GB HDD .............. WD 1TB hdd.................................... Seagate 160GB hdd
    GTX 460 1GB x2 SLI ................. Msi 9600GT 512MB(died) ........... Onboard gx
    Win7 64 ,750w psu(ocz)............ Win7 64 ,520w psu,seasonic...... Win XP pro ,400w psu

    HEC 6A34 case . ....................... Jeantec R2 case............................ Packard Bell case

    hoping to upgrade to http://www.thinkgeek.com/stuff/41/habicase.shtml
    http://www.flixya.com/video/140325/Animal-launching

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