Solved

CPU temperature too hot

Posted on 2004-10-25
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Last Modified: 2010-04-12
I have an MSI 865PE NEO 2 motherboard with a 3.2 GHZ CPU. The problem I am having is Motherboard Monitor and speed fan all show my CPU at temps of 50C idle.....78C busy...
More system info  I AM NOT OVERCLOCKED
Aero Cool HT 101 cooling solution on CPU
ThermalTalke Lanfire Case
500w PSU
2GB DDR 400
2 WD HDD 120MB
ATI X800 Pro
4 case fans

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Question by:bilsery
    14 Comments
     
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    Expert Comment

    by:_
    What is the temp reading in the BIOS?

    It kind of sounds like the Aero Cool is not on correctly. Too much paste, too little, not flush, and so on.
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    LVL 6

    Accepted Solution

    by:
    It looks like heatsink is improperly mounted (or it is defective). Could you remove heatsink, clean thermal grease from it and from CPU with acetone and then reapply some fresh thermal grease? Applying instructions can be found at:
    http://www.arcticsilver.com/arctic_silver_instructions.htm

    Also, do you get the same temperature at full load when case is opened?
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    LVL 10

    Expert Comment

    by:kcarrim
    Did you mount the mainboard yourself? Check heatsink as mentioned by tapkep, but also check if there isn't a short against case chassis. I've found this on my own system. Abit KD7 mainboard with Athlon XP 1700+. The CPU reached a temp of 86C° within 2 minutes without even booting the OS and with case opened.
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    Author Comment

    by:bilsery
    The temp reading in the BIOS is 70C before the OS boots
    I will removeremove the sink, clean... and replace..
    Oddly Aero Cool does not mention that this grease should be used on P$s.. Only on AMDs..
    The system was built by a third party company.. I'll look at shorts...
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    LVL 6

    Expert Comment

    by:tapkep
    Thermal grease must be used always, it does not apply only to some CPUs.
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    LVL 10

    Expert Comment

    by:kcarrim
    Also check if the heatsink clip(s) are tightening properly to ensure proper contact with CPU. The heatsink helps to distribute heat from the CPU surface.
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    Author Comment

    by:bilsery
    I just cleaned the CPU heatsink and reinstalled. The temp has gone up instead of down.

    Idle 56C
    busy   81C
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    Author Comment

    by:bilsery
    USed the thermal grease as recommended
    0
     
    LVL 8

    Expert Comment

    by:eccs19
    May sound like a stupid question, but do you have the CPU fan plugged into the correct spot? (CPU Fan vs Chasis Fan)
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    Author Comment

    by:bilsery
    The fan is in the correct place.
    I am going to clean again and put less thermo compund
    0
     
    LVL 9

    Expert Comment

    by:tosh9iii
    When you first turn your computer on in the morning (basically at a time when it's cooled down), check the BIOS temperature immediately, before it has a chance to heat up, and tell us what the temp is.  it's possible that the readings could be wrong.

    Has your computer shut itself off, out of nowhere while playing games?  That's what happens when things get hot.
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    Author Comment

    by:bilsery
    Cleaning the CPu and heatsink and reinstalling them did the trick my idle temp is 37C and busy is 50ish..
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    LVL 6

    Expert Comment

    by:tapkep
    So the problem was too much thermal compound?
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    Author Comment

    by:bilsery
    Too much thermal compound caused the problem...The link provided was very good!!
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