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GPU Temperature #1, #2 and #3, what do they mean for the 4800 series?

Discussion in 'GPU-Z' started by EastCoasthandle, Jul 31, 2008.

  1. W1zzard

    W1zzard Administrator Staff Member

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    put a sheet of paper over the vrms so that the airflow can not get to the vrms, it should have almost no reducing effect on the "vrm" temperature now
     
  2. trt740

    trt740

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    is this guy really questioning W1zzard? and not just questioning but insulting him, your kidding right? :wtf: Unreal the ban stick needs to be used here I'm not a mod but wow Wshlist you have some balls !!!! hes the founder of this forum and a computer legend, if he doesn't know then who would.
     
    Last edited: Aug 6, 2008
  3. Urbklr

    Urbklr

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    No fan on them right now, didn't need one...Just for when I pencil modded.
     
  4. W1zzard

    W1zzard Administrator Staff Member

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    people are entitled to their own opinions. i don't claim i'm always right. but until someone brings forward some serious counter-evidence (that can be reproduced) i believe in my results

    wshlist is a bit pissed because he thinks we censored some thread (which seems was full of pointless posts). also he's unhappy that i sig violation infracted him for "This forum uses censorship and deletes post without feedback and excuses, please be aware of that, but don't mention it.. " in his sig
     
  5. trt740

    trt740

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    W1zz I think I know alot about computers, mainly because of this forum , but I certainly would not question and insult someone who knows as much about this stuff as you do and is considered an expert on this forum and several other forums on the internet. That just leaves me scratching my head. I think his intention was to get banned and frankly your being way to nice (I know thats not my place to suggest).
     
  6. blaher New Member

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    Maybe the 4850 is different then. You can see in the thread I mentioned earlier that putting heatsinks on the VRMs dropped my temperature by 65degrees when idle. It would crash under load. However, the GPU#1 temperature stayed the same.
     
  7. ASharp New Member

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    Yeah...I hate to disagree with W1zz on this one but, I'm pretty convinced that GPU sensor #2 and/or 3 are for the VRMs and not the GPU die.
     
  8. OzzmanFloyd120

    OzzmanFloyd120

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    That's not it, the GPU on both 4850 and 70 are the same, just downclocked and DDR3 on the 4850, the 4870 has the DDR5(obviously)
     
  9. Widjaja

    Widjaja

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    To conclude this will someone possibly post some video footage showing the VRMs getting more air and running cooler with a screenshot of GPUZ?

    Then just use the stock cooler and show GPUZ again in the video footage.

    This thread has turned into a debate to an extent and most probably won't be resloved without hard proof.
     
  10. W1zzard

    W1zzard Administrator Staff Member

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    show me your evidence
     
  11. Urbklr

    Urbklr

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    I would gladly pull my sinks off my 4850 for this debate, but I'm afraid they wouldn't stick again:(
     
  12. tomcug New Member

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    I'll perform some testing tomorrow, but I think #2 and #3 temperature sensors are on the GPU die after seeing W1zz's experiment.
     
  13. rickpatbrown New Member

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    I must have some magical VRM that doesn't exceed 45 degrees under load :rolleyes:

    This is with an MCW60, so the GPU is the only thing being cooled.

    I do have the VRM's sinked, but they get hot. They are in the 75 degree range.

    This is one of my CF'd 4850's at stock.

    Some people are special.

    [​IMG]
     
  14. tomcug New Member

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    Rickpatbrown, really nice temperatures. So, after seeing your results I'm sure that #2 and #3 temperature sensors are on the GPU die. How did you measuse VRM's temperate?
     
  15. rickpatbrown New Member

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    I stuck a diode in between the heatsinks. It was just a quick test to see what ballpark they were in. Nothing scientific. Actually, I think these are the PWM's. I'm not too sure on the anatomy of the card. What are the big gray boxes? These are the ones I put the diode on. I think they say "vitec" on the 4870.

    I do now that about 80 degrees gets a little painful to touch. I just put my finger on stuff most of the time. Again, not very scientific. I fingered the smaller black chips that are directly behind the big gray boxes. These feel about the same.
     
  16. W1zzard

    W1zzard Administrator Staff Member

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    while it is not scientific it is one of the best ways to measure temperature in my opinion.
    your finger is non conductive and gives you optimum control to get even in very hard to reach areas while the system is running

    if you can comfortably keep your finger on a spot its temperature is perfectly safe. if it hurts you should worry. you will almost never burn your finger because you will sense the heat radiation from the really hot spots
     
  17. rickpatbrown New Member

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    The 4850's burned me a couple of times. 81 degrees at idle . . . ouch! Will GPUz have the updated lables for 4850's or just 4870?
     

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