Archived from groups: alt.sys.pc-clone.compaq (
More info?)
The MB was Compaqs own design. Made by Mitac I think, been a while since
I had mine opened up.
Chipset was Nvidea and it had S3 sound.
If you want to find out more info grab a copy of SiSoft SANDRA. Run it
and it will outline all the parts in the machine.
As for upping the bus speed it cannot be done, the only options on the
board were 60 or 66 mhz,
--
Steve Williams
"Wayne" <wgt@telus.net> wrote in message
news:mNF7e.33151$vt1.11365@edtnps90...
> Thanks, Steve. Been through the Compaq corporate site. However, the
other
> links you sent are quite interesting. But I still need more specifics
on
> the motherboard and main chipsets, etc. as applies to the 1255's AMD
K-2
> that's on it.
> As well, Mike's site doesn't really chase down many results of any dip
> changes. That could be dangerous without knowing the details of other
> product parts within the laptop. Be great to read some others
comments on
> what they did on the board and what the results were..
> How will any of this change my pc66 directive to a pc100?
>
>
>
>
> "Steve W." <Dugdug56@what.com> wrote in message
> news:425f1d20$1_1@127.0.0.1...
> >
http://www.compaq.com/athome/support/msgs/1255-1275/system.html
> > This the one you found?
> >
> > CPU should be a AMD K6 - 333 with MMX
> > Link to faster CPU upgrade
> > http://www.mgrudkin.clara.net/
> >
http://web.inter.nl.net/hcc/J.Steunebrink/k6plus.htm
> >
> > More info on the 1255
> >
http://snipurl.com/e0v0
> >
> > The only problem I had with mine was the touchpad. It went nuts when
you
> > touched it.
> >
> > --
> > Steve Williams
> >
> > "Wayne" <wgt@telus.net> wrote in message
> > news:xay7e.40208$jR3.30323@edtnps84...
> >> Interesting. Where can one round up info on the specs on the guts
of
> > this
> >> Presario 1255? Is there a link to Compaq (or other) that will
detail
> > that
> >> info, what components went into the laptop. ie: specific CPU and
> > m'board
> >> manufacturer and models, etc. I found a Compaq link to service and
> >> maintenance of the unit but no specifics as (for instance) on the
IBM
> > site
> >> for all their notebooks.
> >>
> >>
> >>
> >> <ben_myers_spam_me_not @ charter.net (Ben Myers)> wrote in message
> >> news:425ea332.18846436@nntp.charter.net...
> >> > This is not unusual, whether notebook or desktop computer. A lot
of
> > the
> >> > older
> >> > chipsets were designed before speed grades faster than PC66 were
> >> > available, so
> >> > the chipsets are constrained to only recognize PC66. In fact,
> > early,
> >> > early PC66
> >> > memory does not have a serial presence detect (SPD) circuit,
which
> > tells
> >> > the
> >> > motherboard the speed of the memory... Ben Myers
> >> >
> >> > On Thu, 14 Apr 2005 16:46:41 GMT, "Wayne" <wgt@telus.net> wrote:
> >> >
> >> >>I'd like to take full advantage of the maximum of 160mb 9by using
> > 128mb),
> >> >>which still is rather limited.
> >> >>
> >> >>Seems Kingston also still provides pc66 at 128mb: KTC-p1900/128
for
> > this
> >> >>1255 laptop.
> >> >>
> >> >>Damn. Really too bad the much more available pc100 does not
appear
> > to
> >> >>work
> >> >>as I was led to believe it was backward compatible. I thought it
> > would
> >> >>just
> >> >>be a matter that the laptop doesn't take advantage of the speed
is
> > all (?)
> >> >>
> >> >>
> >> >>
> >> >>"HH" <hahunt42@hotmail.com> wrote in message
> >> >>news:HLydnTCvfpA50MPfRVn-hQ@giganews.com...
> >> >>> Steve is correct. PC66 only. I recommend Crucial for all
Compaq/HP
> >> >>> memory.
> >> >>> Here is the link to your 1255. Only 64MB SODIMMs are available.
> >> >>>
> >> >>>
> >
http://www.crucial.com/store/listparts.asp?Mfr%2BProductline=Compaq%2BPresario+Notebooks.&mfr=Compaq&cat=RAM&model=Presario+1255.&submit=Go
> >> >>>
> >> >>> HH
> >> >>>
> >> >>>
> >> >>> "Wayne" <wgt@telus.net> wrote in message
> >> >>> news:Cdg7e.32367$7Q4.20399@clgrps13...
> >> >>>> Hi.
> >> >>>>
> >> >>>> I was looking for a rudimentary laptop to do some onboard
> > diagnostics
> >> >>>> on
> >> >>>> my cars. My neighbour was kind enough to loan an older
Presario
> > 1255
> >> >>>> to
> >> >>>> me, and it did the scan flawlessly! I decided to buy the
laptop
> > from
> >> >>>> him
> >> >>>> and now wish to upgrade the meager 32mb of hardwired memory to
> > its max
> >> >>>> of
> >> >>>> 60mb -- with 128mb.
> >> >>>>
> >> >>>> My question is: pc100 backward compatible with the
"suggested"
> > pc66?
> >> >>>> If so, will any 128mb PC100 144pin Sodimm sdram work in this
> > laptop?
> >> >>>> ..say a stick from an Armada M700?
> >> >>>>
> >> >>>> Sure appreciate your input.
> >> >>>>
> >> >>>> Wayne
> >> >>>>
> >> >>>>
> >> >>>
> >> >>>
> >> >>
> >> >>
> >> >
> >>
> >>
> >
> >
> >
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