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SubjectRe: lost memory on a 4GB amd64
On Thursday 16 Sep 2004 15:09, you wrote:
> AW> Typo? Tyan Thunder?
> no, it's a tiger:

Ah - ok; I thought the Tiger was their dual athlon board. Didn't realise they
had a dual opteron version.

I have a Thunder K8W.

> AW> The option you mention should be set to 'Auto'
> AW>
> AW> Chipset->Northbridge->Memory Configuration->Adjust Memory = Auto
> AW>
> AW> but set
> AW>
> AW> Advanced->Cpu Configuration->MTRR Mapping = Continuous
> I had "MTRR Mapping = Continuous" set all the time and tried "Adjust
> Memory" in all three modes (Auto/manual/disabled) and manual with 1 and
> 2gb size.
> today I had discovered the MTRR option and changed it to "discrete".
> tried "Adjust Memory" manually at 2gb.
> the only working (but with loss of memory) combination seems to be "Adjust
> Memory = disabled" and independant of "MTRR Mapping".
> The only combination I didn't try is "MTRR Mapping=Discrete"+"Adjust
> Memory= Auto". Will try tomorrow morning.

On further investigation, The settings I mentioned, 'Auto' and 'Continuous'
only work when running a 64bit kernel. Are you running a 32bit kernel?

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