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    G73JH-A1, CPU temperature spikes to almost 90°C during startup...

    Discussion in 'ASUS Gaming Notebook Forum' started by dean_woa, Apr 25, 2015.

  1. dean_woa

    dean_woa Notebook Enthusiast

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    Hi, guys

    My G73jh has worked perfectly for years. I used to tear it apart and clean it every 6~8 months, the last time I cleaned the fans was about a month ago, I also repasted CPU and GPU both at that time. Since that, the GPU has worked great, the idle temp. was about 55°C. the CPU wasn't that good but run OK as the idle temp. a little above 60°C.

    a few days ago, the CPU fan started to run at full speed and make loud noises all the time, and system would shut down automatically when normal usage like web surfing for a few minutes. when installed the Argus temperature monitor and set it to run at startup, i found out the CPU temp. spikes to 85~90°C when i entered windows ! then after several minutes' normal usage, it hit 100°C for a while and system shutdown suddenly, HWinfo64 indicated the CPU fan runs at about 6000rpm and Max. CPU load is 20~30%. By the way, the GPU still worked great like before.

    The following is what i have done so far:
    a). Repasted CPU ; ==>several times since that, sometimes got a little better temp. sometimes a little worse, but above 80°C on starup anyway.
    b). Cleaned the left&right-side vents; ==> Only cleaned the surface of vents about a month ago, so with compressed air and long,slim paper strips, i cleaned the inside of the vents this time, then found out the GPU temp. got a little better, but for CPU, still the same...
    c). Replaced the CPU fan with a brand-new one(which i bought from ebay); ==>the fan run more quietly, but the temp. didn't change much.
    d). Replaced the i7 720QM CPU with a used but working 820QM; ==>Worse.

    So, what else could be done? what is the most likely cause of this cpu overheating? I am so confused!!! any advice would be appreciated :).
     
    dean_woa, Apr 25, 2015
    #1
  2. KTHIRY

    KTHIRY Notebook Enthusiast

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    Almost sounds like voltage and/or power supply. If they get too much, they will run hot I believe. What is your HWiNFO64 reading for voltage?
     
    KTHIRY, Apr 26, 2015
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  3. Meaker@Sager

    Meaker@Sager Company Representative

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    I would replace the heatsink, one or more of the heatpipes may have failed.
     
    Meaker@Sager, Apr 26, 2015
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  4. dean_woa

    dean_woa Notebook Enthusiast

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    Thank you guys for the replies.

    Things are going rosy! when the heatsink was replaced, -have thought it should be more durable than other parts though, everything come back to normal, actually it goes beyond expectation as i get the CPU temp. below 50°C for normal usage. and the other i want to say is, fortunately, it doesn't come to the motherboard(power supply) as KTHIRY said!

    after found it out, i put in the 820QM CPU i got before again, set turbo on, then got the temp. a little bit higher than the default i7 720, but it still works great! here are some Pics :

    [​IMG]

    [​IMG]

    [​IMG]
     
    Last edited: Apr 28, 2015
    dean_woa, Apr 28, 2015
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  5. Meaker@Sager

    Meaker@Sager Company Representative

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    I'm glad it sorted it for you, the insides of the tubes do have a structure and if that gets damaged or has a flaw that age shows up then they can cease working properly. Happy computing.
     
    Meaker@Sager, Apr 30, 2015
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  6. dean_woa

    dean_woa Notebook Enthusiast

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    Thanks buddy, pretty happy about the way things are going. Only problem is I found out that FPC cables on the plamrest case broken after disassembly so many times, so LED indicators on palmrest don't work now, Considering replacing the palmrest case or FPC cables sometime later. :vbfrown: :vbwink:
     
    dean_woa, May 5, 2015
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