Question about IBM ThinkPad T40 2373 Notebook

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IBM Thinkpad T40 Problem Booting Up

My T40 has been locking up when I move it even the slightest amount. It freezes the video and locks the system so badly that the only option is a hard reset. Typically when I restart the fan comes on but I get no video and the system does not try to access the hard drive.

From what I have read, I am trying to determine if the issue is with the video chip as described in other postings, a memory problem or something else.

Does anyone know the boot up sequence/ requirements for the T40 Thinkpad? Does it have to see the video chip before it will access the hard drive?

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  • jeffsupercnb Sep 12, 2008

    I have the same issue - Thinkpad T40 is 4 years old and when I pulled out the the power plug last night - BOOM - black screen and service. The CD rom functions and the fan works - but you get no screen video display - I noticed that the Hard Drive light does not light up either now when I shut down and restart. I took out the hard drive and put i back in. But no success.

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I have a T41 doing this, and pressing on the big ATI video chip (under the wireless card, under the touchpad) would change the machine's mood from bad to good (or vice versa). There are sites saying motherboard flex is the problem, and the solder balls of the video chip (GPU) are the weak link. There is a service on ebay the repairs the solder balls of ATI GPUs for $50, which I will be trying out. Or check Youtube for how to reflow the solder yourself with a 1500 watt heater and an infrared thermometer.

Posted on Sep 15, 2008

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Well if you had an issue with the video you would get a distorted image on the IBM boot image or on the BIOS. Try to click ACCESS IBM and navigate through there is no video issues occur the motherboard is fine from there. I have seen Memory distort and lock up computers if its bad so I would recommend you download from google a program called MEMTEST and burn it to a cd and test your Computer memory and make sure it passes. From there on I would most like think you have a hard drive problem because that would cause the locking up and the video problems too. If the computer is 3-6 years old It might be the hard drive and dont get me wrong the video on the motherboard could be going too but without proplery diagnosing each part I cant fully answer it.Hope my answer gets you closer to a solution.

Posted on Aug 11, 2008

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