Some T-20's will support one gig and some won't. It should work just fine
with a 900 Mhz. I don't know why this is, but the shutdown indicates some
CPU incompatibility that I doubt you can work around. Pick up a 900Mhz,
there is really not that much difference
----- Original Message -----
From: <MScott8169@aol.com>
To: <thinkpad@stderr.org>
Sent: Tuesday, February 17, 2004 12:08 PM
Subject: [Thinkpad] 1.0 GHz PIII CPU Upgrade 2647-81U
> After a new 60 GB hard drive, CDRW and fresh load of W2K with a clean
install
> I finally had a problem I couldn't over come. I attempted to install a
1.0
> GHz SL53S Intel PIII CPU and a fan from a T21 laptop. The BIOS needed the
date
> reset as expected but it also said fan error. I noticed where the T21 fan
> had three wires and my T20 had four so I removed the T21 fan added a dab
of
> Artic Silver to make sure I had good a thermal transfer and attempted to
boot
> again. This time after setting the time and date again I got to the W2K
startup
> screen before it shut down. I shut down the system. Took it apart again
and
> reseated the CPU. Clean up the area, added just enough thermal compound
and
> the T20 fan. I booted to BIOS set date and time. Saved and booted to W2K
and
> this time I got to the desktop before it died again. Finally, I
reinstalled by
> 700 MHz PIII and ran through the whole deal again where it booted just
fine.
> Have I left something out like flashing the BIOS after the CPU switch? I
> already have version 1.21 or do I possibly have a bad CPU?
>
> I usually learn more when thing go wrong rather than go right but I wish
this
> wouldn't be such a learning experience.
>
> Thanks as always,
> Mike Scott
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Received on Tue Feb 17 12:23:44 2004
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