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    Asus z70va VGA problem

    Discussion in 'Asus' started by canadian_mofo, Jan 22, 2009.

  1. canadian_mofo

    canadian_mofo Notebook Consultant

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    Ok i just took my z70va into the shop to get the heatsing/fan assembly replaced for the video card. The fan stopped working a while ago and the card would obviously get to some ridiculous temps. So its all said and done now, however speedfan is reading the video card idle temp at 91C and thats with the fan ripping at full speed. Whats up with that? The funny thing is there is no real heat comming from the fan vent or the casing around the card, and at that heat i would assume there would be. Now ive reinstalled speedfan and windows ect. Way back when before any problems i could keep my video card temp down around 50 so this is strange. Did they install it wrong?? Very reputable computer store and tech department. Or is there a possiblity that the heat sensor is damaged and not reading properly?? Any help please would be great. This thing is like a 2 hour disasembly/assembly to get to it again so would hate to get them to have to rip it all open again for nothing.
     
  2. ramgen

    ramgen -- Morgan Stanley --

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    You are saying that the fan is running at full speed and there is no heat coming out of the vent...

    The only reason for that is a large object might be blocking the fan output completely. This may sound ridiculous but I could not find any other reason for that...


    ps: I have an unused GPU heatsink+fan assembly (with its original thermal pads) that I purchased for my old Z70V. I can send you a pic of it. If you can replace it by yourself, I can sell it to you for a very reasonable price.

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  3. canadian_mofo

    canadian_mofo Notebook Consultant

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    no ive already replace the heatsing fan assembly its a brand new one in there right now that the store installed for me. I mean there is a little bit of heat comming out but alot more heat comming out of my cpu vent that is at only 60C. Could the sensor be broken??
     
  4. ramgen

    ramgen -- Morgan Stanley --

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    As far as I remember, the case around the heatsink was pretty hot even when the GPU was around 70C in my Z70V. It was much hotter than the CPU side.

    If your GPU is running at 91C, the case around the GPU should be as hot as hell. Is that correct?

    edit: This was happening after 1-2 hours of use. It takes sometime for the outer shell to heat up..
     
  5. canadian_mofo

    canadian_mofo Notebook Consultant

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    its been on now for 3 hours CPU case side hotter then GPU and the CPU heat out of the vent is deffinatley hotter as well.
     
  6. ramgen

    ramgen -- Morgan Stanley --

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    I remember that my GPU case side was noticeably hotter than the CPU side when the GPU temp was ~70C and the CPU temp was ~60C.

    No need to worry then... Either there is something wrong with the program that reports 91C or with the thermal sensors... If the GPU was 91C for 3 hours, the case should start melting...


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  7. ramgen

    ramgen -- Morgan Stanley --

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    Reading after your first post, I think it is the faulty thermal sensor, not the software. If there was a problem with the software, the fan speed shouldn't be that high...

    The fan speed was modulated according to the thermal sensor. In your case, although the GPU is around ~50-55C (I presume), the thermal sensor reads it over 90C and fan runs at the full speed trying to cool it down. And obviously very little heat is coming out...


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  8. E.B.E.

    E.B.E. NBR Procrastinator

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    It could also be poor contact between the heatsink and the die. In which case heat would not propagate to heatsink, fan, and surrounding case area -- but the GPU itself would still be hot.

    I would try a disassembly-reassembly, perhaps with a new coat of thermal paste (make sure to clean old one before).