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Strange black marks on PCB next to VRM

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Gs11suv
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Thursday, May 13, 2021 4:15 PM (permalink)
Are these black marks on right from VRM(red  rectangle) normal or should I be worry that something is too hot/wrong with PCB of graphic card?
 
I've putted heatsinks on VRM on left from blue squares, just didn't do it with these blue squares.From gamer nexus they called these blue squares- 8phase, picture in attachments.
post edited by Gs11suv - Thursday, May 13, 2021 4:23 PM

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    HeavyHemi
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    Re: Strange black marks on PCB next to VRM Thursday, May 13, 2021 4:55 PM (permalink)
    Gs11suv
    Are these black marks on right from VRM(red  rectangle) normal or should I be worry that something is too hot/wrong with PCB of graphic card?
     
    I've putted heatsinks on VRM on left from blue squares, just didn't do it with these blue squares.From gamer nexus they called these blue squares- 8phase, picture in attachments.


    Looks normal. Appears to be a bit of residue left over from the original thermal pads.

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    WindwalkerAlex
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    Re: Strange black marks on PCB next to VRM Saturday, May 15, 2021 5:00 PM (permalink)
    I think its normal
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    abagailsflorist
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    Re: Strange black marks on PCB next to VRM Saturday, May 15, 2021 5:18 PM (permalink)
    Looks like leftover/residual stuff. If it still works, dont fix it ;)
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    the_Scarlet_one
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    Re: Strange black marks on PCB next to VRM Saturday, May 15, 2021 5:19 PM (permalink)
    That also could be flux residue from the soldering of the smd’s, which isn’t anything to worry about.


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    OhmicFutility
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    Re: Strange black marks on PCB next to VRM Tuesday, May 25, 2021 5:23 AM (permalink)
    From the spread pattern, I assume that it indicates a thermal gradient. 
    Either that, or some thermal pads have a light adhesive that remained on the board.
    Is that normal... probably.
    From your description, it sounds like you were replacing the thermal pads... which is the most you could do about it.
    #6
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