[CentOS] Intel DG33BU motherboard

Peter Kjellstrom cap at nsc.liu.se
Tue Feb 3 10:44:04 UTC 2009


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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