From: Mark Lee (mark_at_chilli.net.au)
Date: Wed Jul 03 2002 - 19:34:20 EDT
I have a tp 600e and looked at upgrading the CPU which also has the MMC-1.
I don't know if you have the same restrictions as the 600E which runs a
66MHz FSB.
The 466MHz CPU is a celeron chip and I have one here which I found on the
internet.
Not having much experience with CPU upgrades I ask if I was doing thew right
thing moving from a PII366 to a celeron 466 CPU.
The answer was no. If you are running a PII then the biggest upgrade you can
do if you have a 66MHz FSB is to a PII400.
The advise which was much appreciated was from Ray Bayles and Bruce
Markowitz and they wrote:
It is definitely not better. You will not see an improvement... but
rather a big step backward... The Celeron has a smaller and much slower
cache. You only see a significant improvement when going upward at
least 120 MHz, or with a larger, faster cache memory. YOu would need to
go up to a 600X 500 MHz Pentium III or more to see any significant
improvement over the 600E... The 600X has a larger RAM capacity to 512K
which is where you will see the most significant improvement...
Otherwise, go up to a T21 or A21 or more recent computer...
Celeron units do not process images or sound well, either. And they fail
more frequently... You don't want to go there.
Ray Bayles
Canyonlands Technologics
An IBM/ Compaq/ HP/ Toshiba/ eMachine/ ValuePC warranty service company.
TThe Celeron has less cache, is slower than the comparable Pentium
Stick with the 366
----- Original Message -----
From: "mark" <mark_at_chilli.net.au>
To: "Bruce Markowitz" <scosgt_at_worldnet.att.net>
Sent: Thursday, June 27, 2002 8:13 PM
Subject: RE: CPU Upgrades
> I have a PII 366 so was hoped to get something to work which is a little
bit
> faster but an upgrade to the 400 did not seem to be worth it which is why
I
> had a look at the 466
>
> Thanks
>
> Mark
> -----Original Message-----
> From: Bruce Markowitz [mailto:scosgt_at_worldnet.att.net]
> Sent: Friday, 28 June 2002 10:07 AM
> To: mark; Thinkpad
> Subject: Re: CPU Upgrades
>
> If you already have a 400, don't bother.
> The only upgrade that makes any sense is the 300 to 400 mhz, otherwise
> fergetit
I hope this help.
Mark
-----Original Message-----
From: John Bridges [mailto:jbridges_at_peekpoke.com]
Sent: Thursday, 4 July 2002 1:59 AM
To: Per Hassel Sxrensen; thinkpad_at_cs.utk.edu
Subject: Re: [TP770ED] CPU upgrade recommendations?
On Wed, 3 Jul 2002 17:21:42 +0200, Per Hassel Sxrensen wrote:
>Have anyone any experience with CPU upgrades on the 770ED, good or bad, and
>would like to share it?
Top speed is 466mhz, hard to find last I looked.
>For example, where to get a faster MMC-1, and which type & speed to go for
>if reliability is paramount?
I upgraded to a 366mhz cpu in my 770ED.
A lot of little parts to remove to get to the CPU, time consuming.
If you can get the CPU cheaply, and don't mind the risk of complete failure
(breaking something), go ahead.
But don't expect a dramatic speed up.
If you really need substantial speed, buy a new machine. And if you are
doing
3D CAD work, look for something with decent 3D acceleration (the 770ED has
none). I'd try and get something with an NVIDIA chip so you won't be left
out
in the cold like those stuck with ATI chips in their ThinkPad, like a friend
with an beautiful A21P who had to give up and buy a Toshiba just to feed his
EverCrack addiction. (no DirectX 8.1 drivers from ATI (via IBM)).
I remember a friend showing me his CAD system running on a 450mhz PII with a
old cheap NVIDIA board. Fast and smooth, you could rotate the image in
realtime. Then he showed me the same thing running on a new 2Ghz Pentium IV
his floor manager has just bought, but with the built in Video on the
motherboard. It was herky jerky, couldn't keep up at all.
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