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Athlon X2 can't see all 4G of memory

 
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thedark
Second Lieutenant


Joined: 30 Jul 2005
Posts: 1074

PostPosted: Tue Aug 02, 2005 12:06 pm    Post subject: Athlon X2 can't see all 4G of memory Reply with quote

K8N Neo4 Platinum (NForce 4). I'm using 64 bit Fedora Core 3 with a
2.6.11.12 kernel compiled for the Athlon 64.

The BIOS has a switch called S/W memory hole remapping, when OFF the BIOS
sees 3.5G of RAM as does Linux. When ON the BIOS sees all 4G of RAM but
Linux sees only 3G. I've given a mem=4096M to GRUB,

title Fedora Core (2.6.11.12)
root (hd0,0)
kernel /boot/vmlinuz-2.6.11.12 ro root=LABEL=/1 mem=4096M rhgb quiet
initrd /boot/initrd-2.6.11.12.img
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