01-26-2009 05:55 AM - edited 01-26-2009 08:16 AM
As others have noted, my T41 (out of warranty) has begun to randomly freeze, sometimes during BIOS, sometimes in Win XP, with some visible display "wiggles". Matches the descriptions on the web of the bad BGA solder connections, and have tried other troubleshooting techniques. Has Lenovo anything to suggest, before I buy some new laptop(s) from somewhere?
Edit: I had viewed the youtube videos and checked sites about how to reflow previously, but just wondered if Lenovo had any suggestions...
01-26-2009 06:45 AM
You can try to fix the motherboard or replace the motherboard, if indeed the GPU is causing the problem, then a solder reflow of the board can be a worthwhile try. Solder reflow instruction can be viewed in Youtube, and you can take apart the laptop following the following hardware manual.
02-12-2009 09:08 AM
02-12-2009 01:28 PM
The only way to be certain that the GPU issue won't appear is to replace the board with one with Intel graphics from R51, more about that here:
Although T43s are far less prone to develop this problem, they are not completely safe. One of my units has succumbed to the loose GPU syndrome this morning.
Hope this helps.
02-13-2009 07:07 AM
I've been wondering about this. I have the same problem which I keep in check by padding between the chip and keyboard. And I'm too lazy to do the whole reflow thing.
Anyway, does anyone have any thoughts about overclocking the chip so that it overheats? Perhaps using a thermocouple to monitor the temperature, use the overclocking software to bring to the right temperature, and then cool down slowly?
02-19-2009 02:14 PM