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solved - Re: 6GB RAM on a Tyan S2875 Tiger K8W - 500 MB missing

Max A. wrote:

hi max, hi folks!

> Before playing with Memory Hole and MTRR settings in your BIOS setup,
> I strongly suggest to update your BIOS to the latest version.
> See http://lists.debian.org/debian-amd64/2006/06/msg00344.html

just to let you and google know: it worked out. i upgraded the bios to
version 3.03 (took me 10 floppy disks to find a working one) and
activated these settings:

- MTRR mode discrete
- enable software memory hole
- disable hardware memory hole

and voila, got me 6144MB of RAM:
Memory: 6158992k/8388608k available (2669k kernel code, 131712k
reserved, 1001k data, 196k init)

disabling the hardware memory hole is mandatory, otherwise the kernel
wont boot, probably because it cannot access memory-mapped PCI I/O.

thanks again,


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