Windows 10: PC not booting after applying thermal paste

  1.    28 Dec 2015 #1

    PC not booting after applying thermal paste


    My heatsink was very Dusty.
    So today I removed it, cleaned it and reapplied thermal paste after cleaning the top of processor. I did pull the leaver to clean but I didn't remove processor.
    I accidentally broke one of the lock pin while placing the heatsink. But still other pins are holding it perfectly. I also plugged the fan connector currently.
    After doing all this my pc is not booting I can hear the fans running and there is the green light, but there is no orange light which used to blink before.
    Is there any power supply problem and if there is then how to solve it?
      My ComputerSystem Spec

  2.    28 Dec 2015 #2

    There are so many sensitive items in a PC in/on/around the CPU and heat sink area, a review of the procedure that you followed may be in order. One reference that I have used in the past can be found here--> How to install Heat Sink/Fan | hardwaretexpert
      My ComputerSystem Spec

  3.    28 Dec 2015 #3

    telepro21 said: View Post
    There are so many sensitive items in a PC in/on/around the CPU and heat sink area, a review of the procedure that you followed may be in order. One reference that I have used in the past can be found here--> How to install Heat Sink/Fan | hardwaretexpert
    I read all the things on your given link.
    And I think I did almost all the things correctly.
    There is a green light above power button and small orange light below restart button.
    The green light is showing but there is no orange light which is supposed to blink.
    Tell me what does this indicates?
      My ComputerSystem Spec

  4.    28 Dec 2015 #4

    It sounds as if the Orange blinking light indicates some form of hard disk drive activity. Does your PC get through POST (power-On Self Test) correctly?
      My ComputerSystem Spec

  5.    28 Dec 2015 #5

    Your motherboard doesn't have a lot of diagnostic display LEDs.

    I suppose that your PC doesn't have a speaker installed. (See your manual for the two pins on the front panel header.) If you can get such a speaker and connect it, you may get BIOS beep codes that indicate what the problem is. You'd get something from that even without a POST display.

    I'm not sure that having 3 of the 4 heatsink mounting prongs intact is adequate to hold the heatsink flat against the CPU. n the other hand, I'm not sure that alone would keep the PC from booting. Either way, you should replace the heatsink. OEM style ones are inexpensive.
      My ComputerSystem Spec

  6.    29 Dec 2015 #6

    bobkn said: View Post
    Your motherboard doesn't have a lot of diagnostic display LEDs.

    I suppose that your PC doesn't have a speaker installed. (See your manual for the two pins on the front panel header.) If you can get such a speaker and connect it, you may get BIOS beep codes that indicate what the problem is. You'd get something from that even without a POST display.

    I'm not sure that having 3 of the 4 heatsink mounting prongs intact is adequate to hold the heatsink flat against the CPU. n the other hand, I'm not sure that alone would keep the PC from booting. Either way, you should replace the heatsink. OEM style ones are inexpensive.
    I exactly don't know what was the problem. Here is what I did-
    I removed the fan and came to know that I have applied too much paste so I cleared all the paste on top and from heatsink.
    When I was fixing the heatsink on CPU before, the heatsink was not fitting currectly other locks were getting automatically removed and hetsink tilted when I was trying to lock the pins. So I fitted all the lock forcefully all the way in.

    But this time I didn't did that.
    I applied pie size thermal paste and fitted the heatsink balanced it on CPU to make sure it is not tilted and turned the knobs to lock it.

    So now my PC is running normally.
    I checked the temp with hwmonitor and it was 43-52C idle.
    But when I used the prime95 version 2.85 small test the temp skyrocketed to 100C, I freaked out and quickly shut down my pc.
    I didn't know it would force it this much.

    I guess I will still need to buy new CPU fan.
      My ComputerSystem Spec

  7.    29 Dec 2015 #7

    Look into a nice after market one. The ones that come with the processor usually are barley adequate. You can figure to spend around 25-30 US for a nice one but it's really worth the extra cost, IMO.

    And nice fix.. and be careful when you put the new fan on. Just make a small letter P in the middle of the processor the next time around and that will be enough paste. I did that when I replaced my processor/fan and it works like a charm.

    Jeff
      My ComputerSystem Spec


 

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