T41 faulty?

[jiopsi]

Hi,

I have T41 thinkpad, which doesn't work. Here are the symptoms:

- without battery
- fan starts, power-on indicator works
- lcd blank, external monitor blank
- no peep

- when I take dimm out, it peeps correctly symptoms - --- --- -
- changed CPU, didn't fix the problem
- tested CMOS voltage 2.87

Is the motherboard faulty or something else?

[Neil]

Most likely the motherboard. Probably either the GPU or Southbridge (or both) BGA solder joints have failed.

I have a couple of T41 that perform something like that. If you want to do some testing, lift the keyboard and apply some pressure to the ATI chip. While holding pressure power it up. One of mine will still boot every time with pressure on the chip. Fails most of the time without. The other won't boot no matter where I push on the ATI chip or the Southbridge chip.

[jiopsi]

Most likely the motherboard. Probably either the GPU or Southbridge (or both) BGA solder joints have failed.

I have a couple of T41 that perform something like that. If you want to do some testing, lift the keyboard and apply some pressure to the ATI chip. While holding pressure power it up. One of mine will still boot every time with pressure on the chip. Fails most of the time without. The other won't boot no matter where I push on the ATI chip or the Southbridge chip.

Tested it. When I pressed southbridge it did post bios for external monitor and as soon as I lifted the pressure it went blank. I assume only way to fix it, is to change the motherboard?

[Neil]

Forum member poshgeordie used to provide a professional repair service for these boards that are likely better than any replacement boards you might be able to find. But, I'm not sure if he is still doing it. Might want to try to contact him anyway.

[poshgeordie]

Tested it. When I pressed southbridge it did post bios for external monitor and as soon as I lifted the pressure it went blank. I assume only way to fix it, is to change the motherboard?

PM sent.