[CentOS] Intel DG33BU motherboard

William Warren hescominsoon at emmanuelcomputerconsulting.com
Tue Feb 3 14:41:51 UTC 2009


On 2/3/2009 6:06 AM, Paolo Supino wrote:
> Hi Peter
>
>   I tried that and it the result is the same: Linux only finds, 
> initializes and uses only 1 core ... :-( Is there anything else I can 
> try to have Linux initialize all 4 cores?
>
>
>
>
>
>
>
> --
> TIA
> Paolo
>
>
>
> On Tue, Feb 3, 2009 at 12:44 PM, Peter Kjellstrom <cap at nsc.liu.se 
> <mailto:cap at nsc.liu.se>> wrote:
>
>     On Tuesday 03 February 2009, Paolo Supino wrote:
>     > Hi
>     >
>     >   I've installed CentOS 5.2 (i386) in a computer with a DG33BU
>     motherboard
>     > ... When I installed it it crashed because of ACPI issues.
>     Searching Google
>     > I found that I need to turn ACPI off in order to successfully
>     install
>     > CentOS, which I did.
>     >   After a while I noticed that because of ACPI is off the Linux
>     kernel
>     > finds, initializes and uses only 1 CPU core in the Q6600 quad
>     core CPU that
>     > is installed in this computer :-(
>     > How can I force it to find, initialize and use all the 4 cores
>     in the
>     > computer even if ACPI is off?
>
>     Try to leave ACPI on and boot with "pci=nommconf" instead. This
>     works on my
>     DG33 (mine is a TL not a BU though).
>
>     /Peter
>
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>    
Did you turn acpi back on AND try that boot command?



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