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PostPosted: Wed Sep 26, 2012 2:39 am 
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Joined: Thu Nov 20, 2008 10:19 pm
Posts: 12
Location: Nutley, NJ
I've just completed a GPU reflow on a T42p and noticed that the long fan covering the GPU has some hardened black material unlike the white thermal grease used on the CPU. Can anyone identify it or suggest a suitable replacement so that it can be reassembled?

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A31/P, R51, all FlexView; X20(2), 390E, 240X(2), 600E/X, 570E(2) ,765D, 760ED, more docks than Norfolk & more on the way


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PostPosted: Wed Sep 26, 2012 3:14 am 
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Joined: Mon Mar 07, 2005 2:00 pm
Posts: 1799
Location: Copenhagen, Denmark
See the threads T42p fan long m10 installation : pink sheet or not...? and T42 Fan replacement and/or Thermal Paste/Themal Pad and/or Questions on Removing the Fan Unit from a T42.

Johan

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IBM T42p's (2373-Q1U & -Q2U): 2.1 GHz, 15" UXGA FlexView, 2 GB RAM, 128 MB FireGL T2, 128 GB 1.8" SATA SSD, IBM a/b/g, BT, Win 7 Ultimate
IBM T42 (2373-N1G): 1.8 GHz, 15" SXGA+ FlexView, 2 GB RAM, 64 MB Radeon 9600, 64 GB 1.8" SATA SSD, IBM a/b/g, BT, Win 7 Ultimate


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PostPosted: Thu Sep 27, 2012 6:16 am 
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Joined: Thu Nov 20, 2008 10:19 pm
Posts: 12
Location: Nutley, NJ
Thanks for all the reading tips. I cleaned off all the black gunk from the GPU and under the heat sink. When I dry fit the fan back onto the MB, it fits snugly over the GPU. There's a copper shim that fills the gap so it doesn't look like there is any room for a 2mm thermal pad, or even a 1mm. Is there a special compound like the original or can I just use the white thermal grease? The top of the GPU is flat and smooth.

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