Re: [EDAC-AMD64] Display correct RAM sizes in ganged mode on F10CPUs

From: Borislav Petkov
Date: Thu Feb 03 2011 - 11:34:55 EST


On Thu, Feb 03, 2011 at 10:59:52AM -0500, Markus Trippelsdorf wrote:
> Hm, that doesn't work:
>
> EDAC amd64: F10h detected (node 0).
> EDAC MC: DCT0 chip selects:
> EDAC amd64: MC: 0: 1024MB 1: 1024MB
> EDAC amd64: MC: 2: 1024MB 3: 1024MB
> EDAC amd64: MC: 4: 0MB 5: 0MB
> EDAC amd64: MC: 6: 0MB 7: 0MB
> EDAC MC: DCT1 chip selects:
> EDAC amd64: MC: 0: 0MB 1: 0MB
> EDAC amd64: MC: 2: 0MB 3: 0MB
> EDAC amd64: MC: 4: 0MB 5: 0MB
> EDAC amd64: MC: 6: 0MB 7: 0MB
> EDAC amd64: using x4 syndromes.

Of course it doesn't, doh!, we need the DRAM chip selects from the
second DCT too. Can you please run this little script as root so that I
can verify that BIOS is actually programming sensible values in those in
ganged mode? (Yeah, leave your DCT setting to ganged in BIOS).

--
#!/bin/bash

i=0x140

while (( $i <= 0x15c )); do
reg=$(printf "0x%x" $i)
setpci -s 18.2 $reg.l
i=$(($i+4))
done
--

Thanks.

--
Regards/Gruss,
Boris.

Advanced Micro Devices GmbH
Einsteinring 24, 85609 Dornach
General Managers: Alberto Bozzo, Andrew Bowd
Registration: Dornach, Gemeinde Aschheim, Landkreis Muenchen
Registergericht Muenchen, HRB Nr. 43632
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