actually, it's not a "gasket", though it is soft like one. it's called a "pad". they can wear out, although you can probably re-use it safely several times as long as you don't bend it or get it dirty. if you do add grease, get one of the premium silver bearing greases for maximum transfer, and apply a very, very thing film. the idea being to make up for any small holes or texture that's developed in the pad from it matching the old surfaces when you change the surface on either side. if you see any squeeze out you've probably used way too much, and as it's very viscous, once it's fairly thin it won't be squeezed out very quickly. if you can find a utility to measure the chip temp that is the best way to tell, although i understand some of the later production chips omitted the heat sensor.
in any case, don't use the cheap grease from radio shack. some of the online electronics companies are also starting to carry the sheet material, although it comes in several grades. i think digikey.com has started carrying it. and remember, even the best grease and pads don't conduct as well as metal, so you want as thin a film as possible, they just help the surfaces make better contact since nothing is perfectly smooth, the grease just fills in whatever texture is left. you of course also really don't want a large air bubble in there, i usually rotate the heat sink on from an angle starting with it just touching one edge of the chip so you get a squeegee type effect, if you have to slide the heat sink a little into final position that's usually ok as well, just keep it all pressed together gently until you get the clips on. James S Jones wrote: > > I have a G4 ZIF en route for my B&W, which should arrive by Tuesday. > From installation tips I've found, online, I gather Apple does not use > thermal grease between their CPUs and heatsinks, but rely on something ------ -- So, in the middle of concern over corporate honesty, and the honesty of Dick Cheney and Haliburton, the DOD gives Haliburton a $10 million dollar contract to build prisoner cells for quantanamo bay, something they've never done before, and hardly related to the oil equipment business, now that's leadership by example, bad example. -- G-List is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- We have Apple Refurbished Monitors in stock! | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> G-List list info: <http://lowendmac.com/lists/g-list.shtml> Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/g-list%40mail.maclaunch.com/> Using a Macintosh? Get free email and more at Applelinks! <http://www.applelinks.com>
