[ltp] R50 RAM

cr linux-thinkpad@linux-thinkpad.org
Thu, 18 Aug 2011 21:32:59 +1200


Well - having investigated further (some dismantling required!) - when I got 
it it was working with 256MB of 333MHz Hynix/IBM in the hidden 'standard' 
slot and 256MB of 266MHz in the user-accessible 'Optional' slot.
With 1 GB of 333 MHz Apacer swapped into the 'optional' slot it hung on trying 
to load Debian, repeatedly.
With the 1GB of 333MHz Apacer in the 'standard' slot and the 256MB of original 
Hynix/IBM in the 'optional' slot, however, it works.

Which seems to answer my questions anyway.

cr

On Thursday 18 August 2011 20:33:48 cr wrote:
> Thanks.   That reference (besides having RAM at very good prices) says the
> R50 Type 1830 should use 333MHz RAM.    But my R50 currently has 266MHz RAM
> in the user-accessible slot and siezes if I put a gig of 333MHz RAM in.
>
> Maybe I need to investigate further and see what's in the hidden RAM slot
> deep inside.
>
> cr
>
> On Wednesday 17 August 2011 22:48:42 Takis Diakoumis wrote:
> > try this:
> >
> > http://www.upgradeable.com.au/ibm-lenovo/thinkpad-r50-1830.html
> >
> > On Wed, 2011-08-17 at 20:21 +1200, cr wrote:
> > > More a hardware question than a Linux question, though it is running
> > > Debian Lenny - please excuse the slight OT
> > >
> > > I have a R50 Type 1830 with 512MB of RAM, 256 in the accessible slot
> > > and (I think) 256 out of sight inside.    Most references I can find
> > > say the R50 uses PC2700 / 333MHz RAM, so I got a 1GB PC2700  and put it
> > > in, it would run Grub and start Debian but then it hung solid, several
> > > times. I put back the 256MB which is labelled '266MHz' and it works,
> > > and Gnome Hardinfo says there's 512MB of RAM installed.
> > >
> > > Several questions - did IBM change the RAM speed at some point i.e. is
> > > 266 the right speed for my R50, regardless of what the references say?
> > > Can the internal RAM (presumably 256MB?) be changed as well as the
> > > accessible RAM? (The biggest RAM I can get in 266MHz SODIMM seems to be
> > > 512MB).
> > >
> > > Any pointers welcomed.
> > >
> > > cr