True 100% is almost impossible to find... too difficult to make... and too much a fire risk. 91% is standard.
Denatured Alcohol sold in quart cans with pour spout can be found at most Walmart, Home Depot, Lowes, and True Value stores around the USA, and paint stores in Mexico.and Canada. RB On Tue, Dec 13, 2011 at 3:41 PM, David Ross <[email protected]> wrote: > "I don't know whether I should bother, but use 91% instead (found > everywhere, and inexpensive). Does anyone have suggestions on this?" > > Even 50% (as in eyeglass cleaner) will do the job. > > As for quantity, most of the heat dissipation from the CPU is in the middle, > so don't sweat about erring on the side of too little. The critical area is > a central disk with diameter around 2/3 the length of the side of the chip. > > David > > At 11:05 AM 12/13/2011 -0800, Laurence wrote: >>You don't need much grease, as you've figured. It's just enough to fill any >>gaps - both microscopic and macro. I did ine a bit on the thin side - I >>scraped it thin with a credit card and you could see through the coating. >>That worked, but peak temps under load seemed high. I also changed the cpu >>at the same time, so the results are not conclusive. So I'm no expert with >>this, for a small cpu area I would call it less than a grain of rice, more >>than the head of a pin. Then again if you use, say, a conductive thermal >>gunk such as arctic silver (or the ibm field service stuff, if you have >>that) I suspect there's a little leeway on the thick side. Wouldn't worry >>too much. >> >>After a bit of practice you'll find you can do many of these sort of things >>faster a round trip to the Fedex office and of course far cheaper, this >>saving things you would have had to throw out otherwise. >> >>-- Larry >> >> >>From: Michael Stack <[email protected]> >>To: Laurence <[email protected]>; "[email protected]" >><[email protected]> >>Sent: Tuesday, December 13, 2011 12:40 AM >>Subject: Re: [Thinkpad] Re T60 fan going bad (Stuart F. Biggar) >> >>Thanks, Laurence. I ordered the fan today and it should be here tomorrow. >>My most significant concern is to use the right amount of thermal grease, >>but there appear to be many sites with instructions ( >>http://tinyurl.com/7vshu3s ). Thanks for your encouragement, and I'll >>report the results here. >> >>Mike >> >>At 07:44 PM 12/12/2011 -0800, Laurence wrote: >>>Re T60 fan going bad (Stuart F. Biggar) >>> >>>As someone who is not a hardware hobbyist and doesn't have any special >>>interest in deconstructing computers, I can say you can certainly replace >>>the fan. It will cost not much less of your time to make phone calls, then >>>pack, ship, pick up and unpack from depot service as to do the repair >>>efficiently yourself (unless the mailroom handles all the shipping for >>>you). >>> >>>The first time you do it will take a total of at least15 min (if you are >>>very efficient with your time, mechanically oriented and spend 2 minutes >>>scanning the HMM), up to an hour (if you have very little experience >>>inside a computer, need to fuss around some, and have to go back and >>>recheck/redo something). >>> >>>If you lay out relevant HMM pages OR keep them open on a nearby monitor, >>>lay out the very few tools needed, secure each screw onto a diagram (or a >>>photo) of the machine (punch through the paper on some such thing) and >>>snap a few px as you take things apart (you probably won't need them) the >>>job should go quickly. If one does half the job and completes it later, >>>loses screws into a carpet, etc etc it will consume time and effort. >>>About the only catch I recall is being careful not to bend the fan's soft >>>copper heatsink, not even a millimeter. That is done by observing the >>>manual and not rushing. It's best to have a lint-free wiper, a bit of >>>alcohol and a trivial amount of fresh thermal compound handy. And a clean >>>uncluttered place to work. >>> >>>If you do all that you'll find the actual job to be trivial. >>>_______________________________________________ >>>Thinkpad mailing list >>><mailto:[email protected]>[email protected] >>>http://stderr.org/cgi-bin/mailman/listinfo/thinkpad >> >> > _______________________________________________ > Thinkpad mailing list > [email protected] > http://stderr.org/cgi-bin/mailman/listinfo/thinkpad > > > > _______________________________________________ > Thinkpad mailing list > [email protected] > http://stderr.org/cgi-bin/mailman/listinfo/thinkpad -- The sooner you fall behind, the more time you'll have to catch up. . .. ... .... ...... ...... ........ .......... Steven Wright _______________________________________________ Thinkpad mailing list [email protected] http://stderr.org/cgi-bin/mailman/listinfo/thinkpad
