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  1. #1
    DF Jedi hilljd00's Avatar
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    Attention CPU idling at 84c instead of 29c. Ideas?

    Hey Guys,

    Two weeks ago I was developing my Android application in Android Studio and I saved my app and boom, computer turns off!

    CPU idling at 84c instead of 29c - This takes between 30 seconds and two minutes.

    My CPU is cooled by a Corsair H80i. I have disconnected and reconnected my CPU and cables. I have cleaned the CPU and applied new paste and reattached the cooler.

    CPU temp = 74-84c.


    Does anyone have any ideas? I'm stumped.

  2. #2
    DF Jedi ss30's Avatar
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    Default Re: CPU idling at 84c instead of 29c. Ideas?

    Does the heat sink feel hot, is the heat sink's fan working as it should does it speed up as the CPU get's hotter

    EDIT:- Just looked up the cooler and it's a water cooler (I have never used one) is the water being pumped round the cooler and does the block feel hot is their still liquid in the cooler?

  3. #3
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    evilsatan's Avatar
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    Default Re: CPU idling at 84c instead of 29c. Ideas?

    Can you hear the pump working? I've got an Antec sealed liquid cooler, I have read they may not be as efficient as a fan but I don't push my system really. What temps should the processor run at?


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    DF PwNagE WRATH OF BOD's Avatar
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    Default Re: CPU idling at 84c instead of 29c. Ideas?

    go back to a good heat sink & fan, never trusted the low end water coolers, seen a lot fail over the last year.
    you may need a bigger Rad with extra fans or the CPU is starting to fail maybe
    im using a Sapphire Vapor-x dual fan, Idle 20-22 under load 55-62

  5. #5
    DF VIP Member gurry's Avatar
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    Default Re: CPU idling at 84c instead of 29c. Ideas?

    If it was working in the current setup and then it stopped working and you didn't change anything I'd say the pump is faulty. sounds like it just stopped pushing the liquid round the loop.

    Could be worth checking it is still seated properly(but I doubt that would be the issue)

    Can you test it with the original Air cooler just to rule out a faulty sensor?
    PSN - ThirtyQuidKid

  6. #6
    DF Moderator piggzy's Avatar
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    Default Re: CPU idling at 84c instead of 29c. Ideas?

    Have replaced a few water cooled system in the last couple of years for customers where they were sealed units that apparently never ran dry.
    After replacing with a typical air cooled setup I opened said sealed unit to find it was bone dry.

    This I found in 3 different systems . Honestly couldn't remember the make but it was a recognised brand.

  7. #7
    DF Jedi hilljd00's Avatar
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    Default Re: CPU idling at 84c instead of 29c. Ideas?

    Quote Originally Posted by ss30 View Post
    Does the heat sink feel hot, is the heat sink's fan working as it should does it speed up as the CPU get's hotter

    EDIT:- Just looked up the cooler and it's a water cooler (I have never used one) is the water being pumped round the cooler and does the block feel hot is their still liquid in the cooler?
    Doesn't feel warm and the fan is pulling in tons of cold air.


    Quote Originally Posted by evilsatan View Post
    Can you hear the pump working? I've got an Antec sealed liquid cooler, I have read they may not be as efficient as a fan but I don't push my system really. What temps should the processor run at?

    Honestly, I'm not sure what it is meant to sound like.


    Quote Originally Posted by WRATH OF BOD View Post
    go back to a good heat sink & fan, never trusted the low end water coolers, seen a lot fail over the last year.
    you may need a bigger Rad with extra fans or the CPU is starting to fail maybe
    im using a Sapphire Vapor-x dual fan, Idle 20-22 under load 55-62
    I will look into that.


    Quote Originally Posted by gurry View Post
    If it was working in the current setup and then it stopped working and you didn't change anything I'd say the pump is faulty. sounds like it just stopped pushing the liquid round the loop.

    Could be worth checking it is still seated properly(but I doubt that would be the issue)

    Can you test it with the original Air cooler just to rule out a faulty sensor?
    I can't find it atm


    Quote Originally Posted by piggzy View Post
    Have replaced a few water cooled system in the last couple of years for customers where they were sealed units that apparently never ran dry.
    After replacing with a typical air cooled setup I opened said sealed unit to find it was bone dry.

    This I found in 3 different systems . Honestly couldn't remember the make but it was a recognised brand.
    Probably Corsair. It's a sealed unit so can't open it without voiding the warranty.

  8. #8
    DF Member Threatbot1's Avatar
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    Default Re: CPU idling at 84c instead of 29c. Ideas?

    My computer CPU is "overclocked" in the BIOS, so you would expect higher temperatures, but this is not always case.

    Minimum is about 28ºC - however, when running a high load I'm looking at temperatures at 49ºC to about 55ºC.

    When people state that overclocking causes a strain on components, I would agree with them. I go through at least one PSU a year. I've got a Cosair 1.3Kw PSU and replaced that about June last year, the new one is already making the dreaded scrapping noise.

    You could try the following Microsoft Utlities from TechNet.

    Process Explorer
    [Only registered and activated users can see links. ]

    Process Monitor
    [Only registered and activated users can see links. ]

    Both programs should help you find whats causing the high temperature.

  9. #9
    DF Super Moderator
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    Default Re: CPU idling at 84c instead of 29c. Ideas?

    100% it's your pump!
    Mine went just after Xmas, my tubes also had signs of cracking and I took pictures and RMA'd my H80i with Corsair and they replaced it with the new H80i GT.
    The CPU Cooler attached to the CPU has a pump in it, if you put your finger on it gently, you can feel it.

    Go here -
    [Only registered and activated users can see links. ]
    Start a ticket and upload proof of purchase and they'll replace it.
    Just out of interest, what are you using to find your temperatures? Corsair Link?

    In Corsair Link, your pump will be shown... probably 0 rpm.

    [Only registered and activated users can see links. ]

    I've a AMD FX-8350 that idles around 40°C using my H80i GT.
    Last edited by DejaVu; 11th April 2017 at 08:07 PM.


  10. #10
    DF Jedi hilljd00's Avatar
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    Default Re: CPU idling at 84c instead of 29c. Ideas?

    I did that two weeks ago bud and still have had no response

  11. #11
    DF Jedi hilljd00's Avatar
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    Default Re: CPU idling at 84c instead of 29c. Ideas?

    As I can't find my receipt, Corsair are refusing to fix their equipment so I have to buy new today. I have narrowed it down to the following:

    My Case can fit four fans at the top - Fractal Design R2 but I'm looking to downsize to theiir Node 804 which can hold four 120/140mm.
    So my short list is:


    Corsair Hydro H100i v2 - 2x 120mm
    = £95.99 inc [delivery for the 14th - Amazon Prime]. Maplins = £104.99


    Corsair H110i v2 280mm rad and 2x 140mm fans - £95.94


    Corsair hydro h110 gt £106.98


    Thermaltake water 3.0 - 3x 120mm - £102.95 - £139.99 - Depending on RGB LEDS.


    ID cooling Frostflow 240l - 2x 120mm - £79.99


    Which would you choose and why?

  12. #12
    DF Super Moderator Ganty's Avatar
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    Default Re: CPU idling at 84c instead of 29c. Ideas?

    What CPU are you using? Watercooling isn't really necessary most of the time, I mean it sure does look pretty, but stick to air unless you're running an insane overclock.

    Also, what case is it sitting in?

  13. #13
    DF Jedi ss30's Avatar
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    Default Re: CPU idling at 84c instead of 29c. Ideas?

    As Ganty says don't bother and get a normal heat sink and fan

    Thanks to ss30

    piggzy (13th April 2017) 


  14. #14
    DF Jedi hilljd00's Avatar
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    Default Re: CPU idling at 84c instead of 29c. Ideas?

    Quote Originally Posted by Ganty View Post
    What CPU are you using? Watercooling isn't really necessary most of the time, I mean it sure does look pretty, but stick to air unless you're running an insane overclock.

    Also, what case is it sitting in?
    i7-3820 - from memory. Fractal Design R2 but I want to downsize next month.

    Quote Originally Posted by ss30 View Post
    As Ganty says don't bother and get a normal heat sink and fan
    But in theory it will be cooler?

  15. #15
    DF Jedi ss30's Avatar
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    Default Re: CPU idling at 84c instead of 29c. Ideas?

    What are you doing on the PC that needs liquid cooling?

  16. #16
    DF PlaYa MHP's Avatar
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    Default Re: CPU idling at 84c instead of 29c. Ideas?

    I've used Noctua fans and coolers for years and they can keep up with the best AOI's .



    Sent from my Nexus 6 using Tapatalk

  17. #17
    DF Wh0re josweet's Avatar
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    Default Re: CPU idling at 84c instead of 29c. Ideas?

    Having a Carsair pump also fail, i would also strongly suggest its that. Check the pumps rpm in bios. Mine was either at 0 or spinning slow.

    If u bought it online youll have a purchase history you can use as proof. Alternatively, find someone who has and use there receipt as proof.

  18. #18
    DF Moderator piggzy's Avatar
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    Default Re: CPU idling at 84c instead of 29c. Ideas?

    Water cooling your CPU is the equivalent of putting a spoiler on a Corsa ;-)

    2 Thanks given to piggzy

    MHP (13th April 2017), WRATH OF BOD (13th April 2017) 


  19. #19
    DF Jedi hilljd00's Avatar
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    Default Re: CPU idling at 84c instead of 29c. Ideas?

    Quote Originally Posted by ss30 View Post
    What are you doing on the PC that needs liquid cooling?
    Watching Dwarf porn.


    Quote Originally Posted by MHP View Post
    I've used Noctua fans and coolers for years and they can keep up with the best AOI's .



    Sent from my Nexus 6 using Tapatalk
    I'll have a look now, cheers buddy


    Quote Originally Posted by josweet View Post
    Having a Carsair pump also fail, i would also strongly suggest its that. Check the pumps rpm in bios. Mine was either at 0 or spinning slow.

    If u bought it online youll have a purchase history you can use as proof. Alternatively, find someone who has and use there receipt as proof.
    Can't find it anywhere!


    Quote Originally Posted by piggzy View Post
    Water cooling your CPU is the equivalent of putting a spoiler on a Corsa ;-)
    Haha

  20. #20
    DF Jedi hilljd00's Avatar
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    Default Re: CPU idling at 84c instead of 29c. Ideas?

    I bought a Noctua NH-D15 Dual Fan - I hope you are right!

    Thanks to hilljd00

    MHP (14th April 2017) 


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