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Foam on iBook logic board

Discussion in 'PowerPC Macs' started by macgeek77, Jul 21, 2007.

  1. macrumors regular

    I recently ripped apart my iBook G3 due to an infamous logic board failure. I was able to fix the logic board by reheating the soddering points on the graphics chip. However, in order to do this, I had to scrape off this yellow foam off the chip. Now, I am getting ready to patch it all up.

    I don't know if I should replace the foam with something else (the old foam is in pieces and cannot be pieces back together). Does anyone know what this foam is for and if I need it on the chip? Thanks!

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