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 > > _______________________________________________ > CentOS mailing list > CentOS at centos.org <mailto:CentOS at centos.org> > http://lists.centos.org/mailman/listinfo/centos > > > ------------------------------------------------------------------------ > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > Did you turn acpi back on AND try that boot command?