Linux not recognising memory above 64MB

I have just installed redhat linux 6.2 onto a PC with 256MB of RAM on an MS-6153VA ATX VIA Apollo Pro133 Mainboard.  Linux is reporting that there is only 64MB of RAM.

The BIOS, win95 and win98 all report 256MB of RAM.
simon_oldfieldAsked:
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modulusConnect With a Mentor Commented:
at boot-prompt:

boot: linux mem=128M
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modulusCommented:
You can make that permanent if you are using lilo by editing your lilo.conf

append="mem=128M"

then running /sbin/lilo

This option is described in the lilo man page if you are interested in further reading.  It's due to a limitation in some BIOS's design,

best wishes,
modulus
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