But why am I now monitoring the Chrome effect on my CPU temperature? Â Because earlier this week, in the midst of all sorts of irreproducible work (of course), my 3-year-old Lenovo T42P abruptly quit, and wouldn’t return to life. Â BIOS diagnosis: Â fan kaput — and to the point, the notebook would shut down immediately thereafter.
Took the old fan out, which was very easy, following the instructions in the clean T42 Manual. Â For finding the right part number (a cutely named FRU = “Field Replaceable Unit” … guess I’m in the field now!), I used the Service Parts Diagram for the T42p. Â Turns out that my part number –Â 13R2657– has been replaced by part numberÂ 41W5204Â (confirmed in the Thinkpad forums, and also by IBM NL). Â Since I’m in the Netherlands, I had to order from IBM NL … they were pleasant and efficient, and I received the fan overnight. Â Putting the new fan in was a breeze.
Disturbingly, though, the Thinkpad booted up, but then would quit after 10-20 minutes … and by “quit”, I mean: Â turn off abruptly, with no traces left in the event logs. Â Not so cool. Â So I installed “Emeritus'” Windows Thinkpad fan management app (if you’re running Linux on a Thinkpad, there’s a whole host of app support for you … Google it), as discussed in this thread, set it to be a bit more aggressive about kicking the fan up in response to temperature steps … and … so far, so good. Â I’m holding at about 53-54Â° C when on battery, even with my Chrome abuse.