amd64 does not see all 4 GB RAM on tyan GT24

Scott Long scottl at
Mon Nov 7 14:17:45 PST 2005

Claus Guttesen wrote:

>>>Just received a Tyan GT24 with a S2891 board. In the
>>>bios-setup-utility the board has 4 GB RAM, but when FreeBSD 6.0
>>>release boot it only recognizes 3 GB. Dmesg:
>>Please send the verbose boot output, specifically the lines that
>>mention 'SMAP'.
> Did a verbose boot but no lines mentioning SMAP. Verbose dmes is attached.
> regards
> Claus

Not sure why the SMAP lines didn't get printed out.  Anyways, check your
BIOS for a setting related to PCI-Express.  Some motherboards allow you
to reclaim the 256MB hole that PCI-Express consumes.  That should help 
your problem at least a little bit.


More information about the freebsd-amd64 mailing list