Re: [Thinkpad] A31P mYSTERIOUSLY hANGS

>Hi all,
>
>I've got an A31P, 3 years old, and as of a couple of weeks ago, it suddenly
>hangs. I thought it might have been a scratched hard drive, so I Ghosted
>the old to a new drive and still have the same problem.
>
>The hangs occurs when there's movement to the machine. No flicker
>beforehand, it just freezes where it was.
>
>I've removed all daughter cards and it still hangs.
>
>I spent the morning tearing it down to the mother board, thinking it might
>have been a loose connector. I didn't really see what could have been loose
>because all peripherals are surface mounted on the mother board. I put it
>all back together again and still have the problem. (But was greatly
>relieved that it booted up again! I was afraid of the Humpty-Dumpty
>syndrome!)
>
>Anyone else run into this problem?
>
>TIA
>
>pARISpAT
>

I have an A21p. It started hanging in Windows (either 2000 or
xp on different drives). It just worked with Solaris x86 (Unix)
on either drive. It seemed to be worse with a Cardbus IBM
a/b/g WiFi card plugged in (Windows only). I took the machine
completely apart and put it back together (new thermal grease
under the CPU). No change - still hangs (mouse freezes, ctrl-
alt-del doesn't work, etc.). Sometimes unplugging the Cardbus
wifi card would allow the mouse to work but not reliably.

A couple of days ago I reset the bios to defaults. Since then
the machine has been fine. I ran a data collection program
overnight (uses special IEEE-488 card and serial and so on
in a dock) and the wireless. No problems - I can't imagine how
that would "fix" anything but I'm no expert. It has been running
all day so far at home connected with wireless.

I've ordered a new CMOS battery (it is a lithum button cell with
wires and a tiny plug) in case that is low (about 4 years old).

You might try resetting the bios and check to see that the
CMOS battery is OK. Typical button lithium cells are 3 volts.

Stuart
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Received on Sat Jan 22 17:55:19 2005