Hi there, It looks like your model of Digital Audio indeed has a plastic cover over the CPU. I found a review of these CPUs on XLR8yourmac through a Google search, and it includes an installation guide, so I'm pointing you there: http://www.xlr8yourmac.com/g4cards/giga_designs_800_1ghz/index5.html Eric W. Am Oct 1, 2008 um 2:52 AM schrieb ronald basford: > I have a Digital Audio 733mhz and was given a Giga Designs CPU to > use as an upgrade but without any instructions. When i opened the > machine i saw a plastic cover over where i assume the CPU is - i > have upgraded other machines but am unsure how to remove the > plastic - also is there a firmware or any other action to be done > before. > thanks in advance - ronald > _______________________________________________ > G4 mailing list > G4 at listserver.themacintoshguy.com > http://listserver.themacintoshguy.com/mailman/listinfo/g4