From: Paul Khoury (pkhoury_at_earthlink.net)
Date: Sun May 19 1996 - 12:21:49 EDT
On 23 Apr 1997 07:22 EDT, Daniel Hammett wrote:
>Folks,
>
>It's been a while since I saw this topic posted, and I am ever the
>optimist. The question is fairly straight forward - does anyone know of
>a CPU upgrade for the ThinkPad 750? The original CPU is a 486SL/33 and I
>had heard that there was no upgrade path from SL parts.
>
>Are there no higher speed SL CPUs or did Intel only make the 33MHz
>version?
>
>Thanks for any replies,
>
>Dan.
>
>*---------------------------------------------------------------*
>| Dan Hammett - TN-16X Hardware Engineer |
I believe that Intel only made the 486SL-25 & 33, and also had an SL series for the 386, but I think that's it.
Upgrading any machine (with some exceptions on today's Pentiums) requires that the crystel match the
speed of the processor, i.e. 25,50,75MHz=50MHz crystel, 33,66,100 (actually 99)MHz=33MHz,
20,40MHz=40MHz, etc. I have heard, however, in Play at Will, the new EZPLAY for OS/2 Warp, in the card
compatibility list of an IBM Chip Upgrade, as noted below.
PlayAtWill (*) PC Card(**) support
=======================================
...........blah, blah, blah.....
CPU
IBM
ChipCard TC-100
3.0 Trademarks
----------------
The following terms, denoted by a double asterisk(**), are trademarks of
o (blah, blah, blah...)
IBM
ThinkPad
PlayAtWill
PC Card Director
And that's it. I have no idea if the card still exists or which machine it's intended for, but there's the
information anyways.
Regards,
Paul Khoury
pkhoury_at_earthlink.net
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