Mobile Pentium I VRT/TCP cpu
Shane
i recently accquired a laptop that uses a pentium 100 MHz cpu that has
an s-spec number of SY029. I am trying to find some of the earlier CPUs,
but am unable to find more of these VRT/TCP processors anywhere on the
internet for sale. I would like to throw in a little faster cpu, would
anyone have any suggestions as to where I might find where to purchase
one of these? Also I was wondering what the fastest Pentium processor
that uses the VRT/TCP technology made was, a 150 MHz or a 133 MHz?
thanks,
Shane
post scriptum,
I found this digging through some old newsgroup posts, is what the
original poster saying possible in regards to popping a pentium mmx cpu
into a laptop?
see below
From: tobia...@my-dejanews.com (tobia...@my-dejanews.com)
Subject: Re: Laptop CPU
Newsgroups: intel.microprocessors.pentium
View: Complete Thread (2 articles) | Original Format
Date: 1999/03/27
> Ron Ableiter wrote:
>
> I have a feetron ft6000 w95 p133. I was wondering if this
> is upgradable to a faster cpu? Any web sites where I can get info?
I haven't found any information either and I have the same problem:
1. Check with a tool like
ftp://ftp.heise.de/pub/ct/pcconfig/ctcm16n.zip
and matching with the table
http://developer.intel.com/design/pentium/qit/
or
http://www.tomshardware.com/pentium.html
whether you have a mobile CPU with VRT (2.9 core, 3.3 I/O)
2. Check whether you you have a socketed and not a soldered CPU
(I don't know whether ctcm16n in step 1. gives enough in-
formation about the cpu, if not you may check the S-Spec
underneath the cpu-fan)
I did both steps and checked the intel documentation of the
VRT pentium and the MMX pentium (P55C). I was wondering whether
the VRT in the laptop is the same as in the MMX cpu. Comparing
both systems I recoginzed that the 28 VCC3, 25 VCC2, and the
53 VCC pins are at the same postion. The only minor difference
I could find was the 2.9V @ VRT and 2.8V @ P55C, which is no
problem as a P55C is even at 2.9V within the specs (you in-
crease however the power dissipation).
Finally then I thought about replacing my P100 cpu with a
Pentium MMX cpu, as this is likely to work considering the tech-
nical side. Still there are other differences between a laptop
and a P55C cpu that might affect the functionality. I don't
have time to check all this, but I was promised to get a
very check P55C soon and if this comes true I will just try
it as intel couldn't help me with my question I posted here
a couple of days before.
If it works you have the following benefits:
- 2*16kb 1st level cache instead of 2*8kb
- improved branch prediction
- enhanced pipeplines
- deeper write buffers
- MMX technology
Especially the 2*16kb 1st level cache would improve the performance
of my system very much.
BUT PAY ATTENTION TO THE POWER CONSUMPTION: Even a P233MMX should
not run beyond 133MHz, as their power consumption is much greater
than the laptop is used to handle. I plan to increase the clock
incremently, but would never go beyond 133MHz.
__
/oby
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