Thinkpads Forum

I have a T60 2007-G4U that goes to sleep or shuts down only while a battery is plugged in (tried with 3 different batteries). If I remove the battery, everything works fine. I even changed the ram / power adapter and I have the same problem. I also tried to a BIOS update to the latest version and that didn`t work either.

edit:
Some pretty weird stuff is going on :
it goes to sleep when I run Prime95 and cinebench and it shuts down under 3dmark2005 cpu test 1 (every other test works fine).
it works fine when I run SuperPi, 3dmark2003, PCWizard benchmarks.

again, this only happens when I have a battery plugged in.

I had an old ThinkPad that sometimes wouldn't boot with a bad battery, but always booted without a battery.

Try running some temperature monitoring software and see what your CPU and GPU temps are like. My T42 was shutting itself down at about 99 deg. C when the fan wasn't working properly. I had the fan replaced under warranty and the problem was solved.

I did some more testing and this only happens when the battery is charged at 100% and the laptop is plugged in to AC power.
It is not temperature related because if I discharge the battery a bit it will pass any test without problems.

I stumbled across the following post while looking for something else. Perhaps the problem below and solution is the same.

http://superuser.com/questions/25636/th ... no-warning