freezes on my T41...

T4x series specific matters only
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wrybread
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Location: San Francsico, CA

freezes on my T41...

#1 Post by wrybread » Tue Apr 22, 2008 4:33 am

I bought a used T41 a few months ago and have had no problems until the last few days. Now I'm getting a strange freeze. Here's the symptoms:

- the screen goes black and all activity pauses, and if I move the screen it will sometimes come back, though with dots on the screen. Eventually the screen will redraw itself and the dots will go away.

- the problem seems to come in bursts, meaning it won't happen for a while and then it will happen pretty constantly

- moving the screen during the blackout often brings life back, but not every time. I don't think its a simple loose connection though since activity on the computer completely halts during this freezeup. I can tell this is the case because all audio stops too.

- I tried installing Ubuntu but got a freeze during setup, so it sounds like its not a driver issue.

- the problem seems to happen most when I type or use the touchpad.

- I removed the keyboard and palmrest and didn't see anything obviously loose.

Anyone have any theories?

AIX
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Location: Bucharest, Romania, EU

#2 Post by AIX » Tue Apr 22, 2008 5:24 am

Maybe a memory related problem? Have you tried to test it? or to change it?
T430 · i7-3632QM · 12GB RAM · 512GB SSD · HD+ · NVIDIA NVS 5400M · H5321gw
T420s · i5-2520M · 12GB RAM · 480GB SSD · HD+ · HD3000 · F5521gw
T60 · T2500 · 3GB RAM · 128GB SSD · 14.1 SXGA+ · 128MB ATI X1400
Past: T400, T41, T22, 600X, 390X

wrybread
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Posts: 65
Joined: Wed May 30, 2007 12:01 am
Location: San Francsico, CA

#3 Post by wrybread » Tue Apr 22, 2008 5:39 am

Thanks for the suggestion. I tested with Memtest, all clear.

I just researched some more and see I might have the dreaded loose solder joints between the GPU and the mobo. Apparently a very common problem with the T41's. Ugh.

See here for more info:

http://episteme.arstechnica.com/eve/for ... 2002878831

http://forum.thinkpads.com/viewtopic.php?t=57021

Does anyone not agree that this is the issue?

I'm pretty sure it is the issue, since it happens pretty often if I prod the GPU.

And does anyone know someone who would do this fix if I mailed them the laptop?

zdriver
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Location: Seattle WA

#4 Post by zdriver » Tue Apr 22, 2008 10:12 am

Highly recommended for your board repair is member jamiphar, known for high quality repairs of boards with your problem.
See the thread - LCD CCFL Backlight Repair/GPU Rework - I'll fix it for you!
This would be your #1 option.
X200s 7470-A12 1.86Ghz 8GB WXGA+ 1440x900 HyperX SSD 120GB Windows7 Pro 64bit

T42 Retired

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