600E Fan never comes on.

[tatterjack]

600E Type 2645 Windows 98

This is the same unit I had the modem problem with http://forum.thinkpads.com/viewtopic.php?t=5350

The fan never comes on during bootup or normal usage.
It does come on when running the Test option in Easy-Setup
The base and left side of the unit gets pretty hot and it has several times spontaneously rebooted and several times spontaneously shutdown.

I've taken the fan out and tested it on an alternate power supply. It works perfectly in as much as it spins up and blows air. I can't think how to test the temperature sensitive start/stop.

I've checked out the other 600* fan posts but don't see this problem.

However I thought I saw a reference (when I was looking for something else) to a patch for a similar problem on the "old board".

Any help at all would be appreciated but in particular:

1) Can anyone suggest how I can check the temperature while running
(Mobilemeter doesn't run on W98, MBM5 doesn't know this systemboard)?

2) Can anyone point me to this patch or the old board?

Thanks.

[Guest]

I've discovered a few links that may help.

A BIOS update that should help it run cooler http://www-1.ibm.com/support/docview.ws ... us&lang=en

A Battery Maximiser update http://www-3.ibm.com/pc/support/site.ws ... MIGR-44226

A similar problem but in W2000 http://www-3.ibm.com/pc/support/site.ws ... IGR-4MCKLN

Rain Freeware that can auto-throttle the CPU in W98 http://zurich.ai.mit.edu/hypermail/thin ... /0268.html

A suggestion to replace the CMOS/RTC battery http://zurich.ai.mit.edu/hypermail/thin ... /0256.html

A post on here with 600e fan start and stop temperatures http://forum.thinkpads.com/viewtopic.ph ... ht=600+fan

None of these is spot on so I'd still appreciate any help you can offer.

The machine has gone back to it's owner so testing will have to wait

[tatterjack]

Forgot to log in above. Guest=tatterjack.