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  1. #1
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    Z690 Formula PCH hitting 90-92C should I worry?

    I was just wondering if I could be concerned about such a high PCH temp. PCH will stay around 75-78 while doing lite things but reach 90-92C while gaming. I have good airflow 011 XL with 6 fans in 3 out. It probably doesn't help that I have M2_2 and M2_3 occupied plus my Strix 3080 sits right on top of it.

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    It was the first thing I noticed about FORMULA.

    I haven't had a chance to test it in games yet (one of the CORSAIR DDR5 5200-16x2 memories reported error code 50 within the first week of use and now I'm waiting for memory RMA) but I see that the PCH really gets hot (maximum so far in normal use 68C)

    And I say this even having removed the fairing with PCH leds (there is still another board covering it).

    I don't even want to see when I install my RTX 3090.
    I'm seriously thinking about adapting a mini cooler to the PCH cover.

  3. #3
    ROG Guru: Orange Belt Array Braegnok PC Specs
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    Quote Originally Posted by Spartanjet View Post
    I was just wondering if I could be concerned about such a high PCH temp. PCH will stay around 75-78 while doing lite things but reach 90-92C while gaming. I have good airflow 011 XL with 6 fans in 3 out. It probably doesn't help that I have M2_2 and M2_3 occupied plus my Strix 3080 sits right on top of it.
    75-78 under lite load, 90-92c with heavy load seems high for PCH temp. What voltage's are you running, is your system overclocked.

    I'm running fairly high voltages on everything with system overclocked, under heavy load my PCH voltage is 1.056v with temps 57c.

    Click image for larger version. 

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    I don't have any drives on my PCH,.. if your voltages are lower than mine and your temps are that high it does seem strange.

    Try HWI_716 current version to check temps/voltages, could be software error not reading sensors correctly.

    Personally seeing 90c under load on my PCH chip, I would pull heatsink and check/replace thermal pad, perhaps add some TP on top of thermal pad insureing I indeed have good contact with heatsink.
    Last edited by Braegnok; 12-25-2021 at 02:49 PM.

  4. #4
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    I get the same PCH temps like the poster before me: Low 50ies in idle, and higher 50ies when benchmarking. It's never above 60C. The temps mentioned by the OP of more than 90C under load are not "normal", I guess.

  5. #5
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    Just for information, Intel whitepaper says, max Temp for PCH is 108 Degree!

  6. #6
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    Quote Originally Posted by Wolfsaccount View Post
    Just for information, Intel whitepaper says, max Temp for PCH is 108 Degree!
    108C? This is probably just below the melting point.

  7. #7
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    You can find this information in :
    Intel®600 Series Chipset Family Platform Controller HubDatasheet, Volume 1 of 2
    https://ark.intel.com/content/www/us...-5-00-ghz.html
    go to Technical Documentation
    Miniatura de Adjuntos Miniatura de Adjuntos Screenshot 2021-12-12 170952.jpg  

    Screenshot 2021-12-25 192936.jpg  

    Last edited by Wolfsaccount; 12-25-2021 at 06:35 PM.

  8. #8
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    Quote Originally Posted by Wolfsaccount View Post
    You can find this information in :
    Intel®600 Series Chipset Family Platform Controller HubDatasheet, Volume 1 of 2
    https://ark.intel.com/content/www/us...-5-00-ghz.html
    go to Technical Documentation
    Interesting finding! However, I wonder what 0C to 108C actually means? Is 108C the max possible temp before the chip becomes inoperable? I think more useful/helpful would be, Intel giving an "average", or a temperature corridor for the PCH operating under regular / normal conditions. It seems, going by the posts here, that would be somewhere between 50C and 70C.

  9. #9
    ROG Guru: White Belt Array theroc44 PC Specs
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    I can confirm with Z690 extreme, 2 980s on the mobo and the pci5 m.2 slot empty my PCH is hitting 50s idle and higher 70s full load. The weird thing is im not hitting crazy high temps with the cpu package or the various cores. Its only the PCH running abnormally hot.

  10. #10
    ROG Guru: White Belt Array theroc44 PC Specs
    theroc44 PC Specs
    MotherboardZ690 Extreme
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    One more small tidbit on the z690 extreme the PCH heatsink is directly on the bottom right below the Aura-sync led piece. The small black triangle. IClick image for larger version. 

Name:	pch layout.jpg 
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ID:	91364 I know you can open the M.2 cover obv, but is there a way to open this led cover to add some thermal pads or something lol Did anyone mess with the PCH cover?

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