[ltp] R40 Memory Upgrade

William Harrington linux-thinkpad@linux-thinkpad.org
Fri, 15 Jul 2005 13:14:04 -0500


On Fri, 15 Jul 2005 19:52:39 +0200
Frederic Gaus <mailinglists@necroshine.de> wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Hi folks!
> 
> I recently bought a pc2700 1gb ram for my thinpad r40. I already have a
> 512 MB pc2100 inside, but I thought they would be compatible.
> 
> But starting with both chips inside, my machine only uses 1gb (in fact,
> "free" writes 904932 Byte of total memory, why?). Further on, the
> pcmcia-socket0 could not be initialized.
> 
> Using only one chip (never mind which one) everything works perfectly.
> What do you think? Should I use "advanced memory detection" function
> offered by my bios? It says, modern operating systems won't need it.
> 
> Thanks for your help
> 
> Frederic
> - --
> Frederic Gaus                                 pgp-key: 93E6903C
> fingerprint: 0C55 4517 CC1E 5F7F 9059  3535 AB54 D8E8 93E6 903C
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v1.4.1 (GNU/Linux)
> 
> iD8DBQFC1/fnq1TY6JPmkDwRAiKbAJwJxhySbUrkhcZKj+/DItWW/7luDgCgqA/D
> YkLoRTBL6QOfj1ivA+CTQIY=
> =87s6
> -----END PGP SIGNATURE-----
> -- 
> The linux-thinkpad mailing list home page is at:
> http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpad
> 

You will need highmem support in the kernel for physical ram above 1GB.

Sincerely,
William