Service Forum

[oliwek]

Hello, I have bought recently a 2nd hand X41 Tablet ; it came with a fresh install of Win XP Tablet PC edition, and the reinstall hidden partition.
This laptop succeeds in all PC-Doctor hardware (diagnostic) tests, and generally works without issue when sitting on a desk ; however it randomly freezes (black screen, with just battery +"Z in a cercle" + eventually WLAN LEDs lit, unresponsive to everything but a 20s press on the power button). I suspected earlier the thinkvantage hard disk driver (anti-fall) that would cause freezes, but disabling it doesn't help, and even booting from a liveusb linux drive shows the same issues, so it must be hardware related.

I don't know if the bios could (heat related?) abruptly shut down the laptop ; however I don't think it's heat as the laptop succeed all tests stressing CPU i have tried (max CPU temp during PC Doctor tests was around 60 or 61?C, PC Wizard 2010 says). I suspect a loose connexion somewhere. Someone in another forum said to check without battery, AC connected, to see if an old defective battery could cause the issue (even on AC when battery attached), but even so the laptop still freezes (when moved I guess).

Any advice? Should I disassemble to check something?

thank you