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Can this small hole develop shorts?

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tonschk
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2020/09/05 09:47:35 (permalink)
Hi, I took from eBay a second hand processor, I notice the tiny hole was full of thermal paste and then I proceed to remove the paste and make such hole empty, my question is, can the liquid metal or conductive thermal paste drop inside such hole and develop shorts or change the capacitance of the tiny capacitors at the bottom of the hole?. If the answer is yes, then can the use of thermal synthetic graphite pads avoid this problem?, apparently the thermal graphyte pads are electrically conductive. Thank you for advice  

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    Sajin
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    Re: Can this small hole develop shorts? 2020/09/05 12:31:37 (permalink)
    Getting liquid metal into the hole could cause shorts for sure. The pads may work if nothing gets pushed inside the whole making contact with the caps.

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    kougar
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    Re: Can this small hole develop shorts? 2020/09/05 14:43:33 (permalink)
    Regular TIM doesn't matter.... but liquid metal it would depend on the brand. Some are not conductive but you'd need to check the specific brand for safety precautions. Some of them will dissolve a range of metals and are meant to only be used on the bare silicon die. 


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    tonschk
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    Re: Can this small hole develop shorts? 2020/09/06 08:28:02 (permalink)
    Hi, thank you for reply and advice, I think Intel needs to rethink better where to place this small expansion gas holes, I think the IHS of the CPU is a bad idea, EVGA got a better idea to place this tiny hole below the processor socket within the motherboard PCB, thank you

      
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    Delirious
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    Re: Can this small hole develop shorts? 2020/09/06 08:45:09 (permalink)
    first time I've ever seen something like that.

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    HeavyHemi
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    Re: Can this small hole develop shorts? 2020/09/06 12:54:12 (permalink)
    tonschk
    Hi, thank you for reply and advice, I think Intel needs to rethink better where to place this small expansion gas holes, I think the IHS of the CPU is a bad idea, EVGA got a better idea to place this tiny hole below the processor socket within the motherboard PCB, thank you




    Well, the hole in the socket, will not do a thing for the processor.  The vent hole on the IHS is there to let gases escape when the lid is soldered to the die.  My BW-E also has this.
     
    kougar
    Regular TIM doesn't matter.... but liquid metal it would depend on the brand. Some are not conductive but you'd need to check the specific brand for safety precautions. Some of them will dissolve a range of metals and are meant to only be used on the bare silicon die. 


    All liquid metal TIM is conductive. Some regular TIM are conductive. All the consumer LM brands use the same guidelines and procedures. While using LM correctly takes a bit more work than using regular TIM and it is obviously far more conductive thus more risky, the results are worth it IMO.

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    HeavyHemi
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    Re: Can this small hole develop shorts? 2020/09/07 02:42:19 (permalink)
    Delirious
    first time I've ever seen something like that.



     

    Utterly by accident I stumbled up on this.

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