Re: [Thinkpad] CPU Upgrade for 770Z - Anyone Tried PIII 500MHz after Switching 64MB Onboard Memory to 100MHz?

I thought there are two memory slots under the hatch. There is another slot
visible on the bottom of the mobo, I thought that IS the onboard memory.
Where is the 4th slot???
----- Original Message -----
From: "Brian Hougaard Baldersbaek" <brian.h.baldersbaek@stofanet.dk>
To: <pkiff@sympatico.ca>
Cc: <thinkpad@stderr.org>
Sent: Wednesday, September 03, 2003 5:19 AM
Subject: Re: [Thinkpad] CPU Upgrade for 770Z - Anyone Tried PIII 500MHz
after Switching 64MB Onboard Memory to 100MHz?

> Hi Philip.
>
> Your thoughts about the ThinkPad 770Z, swapping the MMC-2 form factor
PII-366Mhz (66 MHz FSB) and the "onboard" 64 MB PC66 RAM-module with a
non-speedstep PIII-500 MHz and a 128 MB PC100 RAM-module....I found...and
find...very interesting. Very !
>
> I too...saw the suggestions regarding this.....and I too must ask: "What
were the results ?"
>
> I have had my own thoughts.
> I haven't succeeded in finding out, how much memory the 770Z can be
stuffed with.
>
> What until now have been tried with some sort of success, is putting in,
two 256MB PC100 modules.
> Reports say, however, that the onboard 64MB PC66 module then, is being
swapped out.
>
> Since the 440BX can see up to 256MB in each of the 4 memorybanks, it
should be possible to put in 1GB of RAM.
> The 770Z has all 4 memorybanks.
> The onboard memoryslot being #1.
> One of the free slots being #2 and #3.
> The other slot is #4.
>
> A lot of good folks have had problems in upgrading memory in the 770Z.
> One is, putting in a two-bank memory module in the one-bank memoryslot.
> Therefore they discovered, that only half of the memory module is being
recoqnized.
>
> Now. If it's possible to get my hands in both one-bank and two-banks 256MB
PC100 modules, my theory is, that putting them in the right places, the 770Z
will recoqnize all 1024 MB's of RAM.
> But no one has ever tried this. All attemps stopped, with putting in two
256 MB modules.
>
> With your brilliant theories in conjunction with this....a full-stuffed
ThinkPad 770Z would look like this.
>
> CPU: PIII-500 MHz, Non speed-step.
> FSB: 100 MHz.
> RAM: 1024 MB.
>
> Who have the ability to try these experiments out ?
>
> Sincerely
> Brian
>
>
>
>
>
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Received on Wed Sep 3 11:26:34 2003