SUCCESS!! I did the GPU reflow on my T42p

T4x series specific matters only
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texasdiver
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SUCCESS!! I did the GPU reflow on my T42p

#1 Post by texasdiver » Fri Nov 07, 2008 8:10 pm

I'm typing on it now. I was about to give this machine up for dead until directed to the GPU reflow instructions in the sticky on the top of this page. So I took about 3 hours this afternoon to tear it apart according to visionviper's instructions. I did end up with an extra screw at the end of the process. Oops. But it's working just fine.

Thanks everyone. Saves me the purchase price of a new laptop.

Harryc
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#2 Post by Harryc » Fri Nov 07, 2008 8:22 pm

Good news, thanks for sharing. Please correct your email address in the forum profile. It is coming back as invalid.

texasdiver
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#3 Post by texasdiver » Fri Nov 07, 2008 8:26 pm

My correct address is in the profile. I don't know why it comes back bad.

Admin note: Address confirmed; removed "bad email" note.

Cecilia76
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#4 Post by Cecilia76 » Wed Nov 12, 2008 2:17 pm

Hallo,

I had an issue with my T42p and was wandering if this the same problem for the GPU. Basically, I have the ThinkPad beeping on startup and no signal come to the monitor: http://forum.thinkpads.com/viewtopic.php?t=69678

Which is the italian translation of "heat gun"? I don't really know what is the tool...

Thanks for any hint.

Cec
ThinkPad T42p (2373-HTG) [broken GPU, waiting for a motherboard replacement]
ThinkPad X41 (2525)

Beaver
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#5 Post by Beaver » Wed Nov 12, 2008 5:59 pm

I suppose, that it should be TERMOSOFFIATORE :wink:

Check on http://www.bosch-pt.it/cgi-bin/fts_sear ... =giunzioni for examples. Hope I am not wrong.
IBM T40p 2373-CG6, Pentium M 1.5 GHz, 1024 MB RAM, 40GB HDD, 14.1" TFT, ATI FireGL 9000 64 MB
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sparta.rising
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#6 Post by sparta.rising » Wed Nov 12, 2008 6:04 pm

think really hot less windy hair dryer
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okkyn
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Re: SUCCESS!! I did the GPU reflow on my T42p

#7 Post by okkyn » Wed Nov 12, 2008 9:01 pm

Congratulations!! I just did that myself. I think heatgun is a must for T4x owner... :lol:
T42, 1.8GHz Dothan, DDR 1.5GB, 7K100 80GB, IBM 802.11abg
T40 (intermittent shutdown - saved by heat gun!!) 1.6GHz Dothan, DDR 768MB, 40GB, Intel 2200bg

Temetka
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#8 Post by Temetka » Thu Nov 13, 2008 1:37 am

Even though I now have a T60, I would like to congratulate the OP on his success!

I hope your machine continues to serve you well. I love my Thinkpad and could only image the despair if I had a bad GPU.
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Cecilia76
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#9 Post by Cecilia76 » Thu Nov 13, 2008 4:40 am

@Beaver:

thanks a lot! I think that TERMOSOFFIATORE is the right translation!

I'll try to fix my machine next weekend and let you know...

Cheers, Cec
ThinkPad T42p (2373-HTG) [broken GPU, waiting for a motherboard replacement]
ThinkPad X41 (2525)

ashat
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#10 Post by ashat » Sat Nov 15, 2008 8:32 am

Just an italian addendum:

termosoffiatore... isn't it just what we call "phon"?
(the italian name originating from the warm wind real existing somewhere in the world)?

i.e. aren't we basically speaking about hair-drier?

or this is a more powerfull and techinical version?

And I am wondering, why this kind of problem went fixed once you "dry" the MB? Is it something related to plastic part becoming harder?

Annalisa
T41p 2374-GGG P M 1.7GHz, 1Gb RAM, 60GB 7200rpm HDD, 14.1 SXGA+(1400x1050), 128MB Fire GL T2, XPP-SP2
R40 2681-F7G P4-M 2GHz, 256MB, 30GB 4200rpm HDD, 14.1 XGA(1024x768), 16MB ATI Radeon, XPP-SP?

Cecilia76
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#11 Post by Cecilia76 » Sat Nov 15, 2008 9:04 am

Hello,

the "termosoffiatore" is really enhanced version of our phon. It spits hot air, in fact, but it can reach 600° temperature and can be controlled. I found a couple of them in some electricity/tool shops.

Here we are not drying the MB but actually reflowing the connection. In the guide in the sticky it's written that you need to warm it up to 205°.

Cec
ThinkPad T42p (2373-HTG) [broken GPU, waiting for a motherboard replacement]
ThinkPad X41 (2525)

ashat
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#12 Post by ashat » Sat Nov 15, 2008 9:37 am

Thanks,

I am probably missing the italian traslation of "reflow" in this context.

A.
T41p 2374-GGG P M 1.7GHz, 1Gb RAM, 60GB 7200rpm HDD, 14.1 SXGA+(1400x1050), 128MB Fire GL T2, XPP-SP2
R40 2681-F7G P4-M 2GHz, 256MB, 30GB 4200rpm HDD, 14.1 XGA(1024x768), 16MB ATI Radeon, XPP-SP?

Beaver
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#13 Post by Beaver » Tue Nov 18, 2008 3:53 pm

Reflow stands for melting down (a little bit) the tin on the GPU contacts so it can "glue" the GPU pins back to the motherboard. Modern devices do not use the components which are soldered on the opposite side of board (going through the board) but flat/surface mounted components (SMD).
IBM T40p 2373-CG6, Pentium M 1.5 GHz, 1024 MB RAM, 40GB HDD, 14.1" TFT, ATI FireGL 9000 64 MB
Dual boot WinXP + Fedora Core 10

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