You don't need 100% - the 91% will do. Just make sure its
dry, by using some non-linting cloth. The kind for eye glasses
is fine.
--STeve Andre'
On 12/13/11 17:06, Michael Stack wrote:
Well, I had no problem finding thermal compound at Radio Shack, but finding
100% isopropyl alcohol is a challenge. I found some at
http://www.tselectronic.com/shop/product/MG-Chemicals-824-99.953--Pure-Anhydrous-Isopropyl-Alcohol-%28Liquid%29/346
but I don't know whether I should bother, but use 91% instead (found
everywhere, and inexpensive). Does anyone have suggestions on this?
Thanks!
Mike
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.
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