I have Centos-3 running on a Dell PowerEdge 1300 (PIII-450) - it''s a dual processor board but with a single processor currently fitted. I have just purchased a second PIII-450 processor on eBay (for ?10!!) - can I just drop it in the system or do I need to reinstall the OS or reconfigure anything software-wise? Thanks NK
you should be able to drop it in just fine, but you''ll need to install an smp kernel in order to actually make use of the second processor (unless your kernel is already smp, which is unlikely). just install the same kernel you now have but with smp in the rpm package name and use that as the lilo/grub default (test first of course) kernel. On Wed, 2 Mar 2005, Nigel Kendrick wrote:> I have Centos-3 running on a Dell PowerEdge 1300 (PIII-450) - it''s a dual > processor board but with a single processor currently fitted. I have just > purchased a second PIII-450 processor on eBay (for ?10!!) - can I just drop > it in the system or do I need to reinstall the OS or reconfigure anything > software-wise? > > Thanks > > NK > > > _______________________________________________ > CentOS mailing list > CentOS@caosity.org > http://lists.caosity.org/mailman/listinfo/centos >
Nigel Kendrick wrote:>I have Centos-3 running on a Dell PowerEdge 1300 (PIII-450) - it''s a dual >processor board but with a single processor currently fitted. I have just >purchased a second PIII-450 processor on eBay (for ?10!!) - can I just drop >it in the system or do I need to reinstall the OS or reconfigure anything >software-wise? > >Just change your grub.conf or lilo.conf to use the SMP kernel by default and reboot. Keep the single processor kernel in the conf file as a fallback in case you have problems with the SMP kernel. It should literally be a 5 minute upgrade. Cheers, -- Chris Mauritz chrism@imntv.com -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 266.5.4 - Release Date: 3/1/2005
Thanks for the reply - is the smp install a simple yum command or a reinstall off the original CD''s - this is not something I have done before. -----Original Message----- From: centos-bounces@caosity.org [mailto:centos-bounces@caosity.org] On Behalf Of Maciej ?enczykowski Sent: 02 March 2005 00:22 To: CentOS discussion and information list Subject: Re: [Centos] Installing a second processor you should be able to drop it in just fine, but you''ll need to install an smp kernel in order to actually make use of the second processor (unless your kernel is already smp, which is unlikely). just install the same kernel you now have but with smp in the rpm package name and use that as the lilo/grub default (test first of course) kernel. On Wed, 2 Mar 2005, Nigel Kendrick wrote:> I have Centos-3 running on a Dell PowerEdge 1300 (PIII-450) - it''s a > dual processor board but with a single processor currently fitted. I > have just purchased a second PIII-450 processor on eBay (for ?10!!) - > can I just drop it in the system or do I need to reinstall the OS or > reconfigure anything software-wise? > > Thanks > > NK > > > _______________________________________________ > CentOS mailing list > CentOS@caosity.org http://lists.caosity.org/mailman/listinfo/centos >_______________________________________________ CentOS mailing list CentOS@caosity.org http://lists.caosity.org/mailman/listinfo/centos
it''s just a matter of running yum install kernel-smp if I''m not mistaken and possibly fixing the grub/lilo configuration files. On Wed, 2 Mar 2005, Nigel Kendrick wrote:> Thanks for the reply - is the smp install a simple yum command or a > reinstall off the original CD''s - this is not something I have done before. > > -----Original Message----- > From: centos-bounces@caosity.org [mailto:centos-bounces@caosity.org] On > Behalf Of Maciej ?enczykowski > Sent: 02 March 2005 00:22 > To: CentOS discussion and information list > Subject: Re: [Centos] Installing a second processor > > > you should be able to drop it in just fine, but you''ll need to install an > smp kernel in order to actually make use of the second processor (unless > your kernel is already smp, which is unlikely). just install the same > kernel you now have but with smp in the rpm package name and use that as > the lilo/grub default (test first of course) kernel. > > On Wed, 2 Mar 2005, Nigel Kendrick wrote: > > > I have Centos-3 running on a Dell PowerEdge 1300 (PIII-450) - it''s a > > dual processor board but with a single processor currently fitted. I > > have just purchased a second PIII-450 processor on eBay (for ?10!!) - > > can I just drop it in the system or do I need to reinstall the OS or > > reconfigure anything software-wise? > > > > Thanks > > > > NK > > > > > > _______________________________________________ > > CentOS mailing list > > CentOS@caosity.org http://lists.caosity.org/mailman/listinfo/centos > > > _______________________________________________ > CentOS mailing list > CentOS@caosity.org http://lists.caosity.org/mailman/listinfo/centos > > _______________________________________________ > CentOS mailing list > CentOS@caosity.org > http://lists.caosity.org/mailman/listinfo/centos >
Is the stepping the same for this CPU? Without the same stepping you may run into some bizzare SMP problems. It''s always prudent to buy dual processors at the same time (to get the same stepping). On Wed, 2 Mar 2005 02:09:23 +0100 (CET), Maciej ?enczykowski <maze@cela.pl> wrote:> it''s just a matter of running yum install kernel-smp if I''m not mistaken > and possibly fixing the grub/lilo configuration files. > > On Wed, 2 Mar 2005, Nigel Kendrick wrote: > > > Thanks for the reply - is the smp install a simple yum command or a > > reinstall off the original CD''s - this is not something I have done before. > > > > -----Original Message----- > > From: centos-bounces@caosity.org [mailto:centos-bounces@caosity.org] On > > Behalf Of Maciej ?enczykowski > > Sent: 02 March 2005 00:22 > > To: CentOS discussion and information list > > Subject: Re: [Centos] Installing a second processor > > > > > > you should be able to drop it in just fine, but you''ll need to install an > > smp kernel in order to actually make use of the second processor (unless > > your kernel is already smp, which is unlikely). just install the same > > kernel you now have but with smp in the rpm package name and use that as > > the lilo/grub default (test first of course) kernel. > > > > On Wed, 2 Mar 2005, Nigel Kendrick wrote: > > > > > I have Centos-3 running on a Dell PowerEdge 1300 (PIII-450) - it''s a > > > dual processor board but with a single processor currently fitted. I > > > have just purchased a second PIII-450 processor on eBay (for ?10!!) - > > > can I just drop it in the system or do I need to reinstall the OS or > > > reconfigure anything software-wise? > > > > > > Thanks > > > > > > NK > > > > > > > > > _______________________________________________ > > > CentOS mailing list > > > CentOS@caosity.org http://lists.caosity.org/mailman/listinfo/centos > > > > > _______________________________________________ > > CentOS mailing list > > CentOS@caosity.org http://lists.caosity.org/mailman/listinfo/centos > > > > _______________________________________________ > > CentOS mailing list > > CentOS@caosity.org > > http://lists.caosity.org/mailman/listinfo/centos > > > _______________________________________________ > CentOS mailing list > CentOS@caosity.org > http://lists.caosity.org/mailman/listinfo/centos >
As it happens they are B0 and C0 steppings! But I have another old PIII-450 on its way courtesy of eBay so I expect I could find a matching pair. SMP seems fine - I have just reinstalled 3.3 from scratch in order to experiment with some IT8212 drivers that need to be recompiled for SMP support. Thanks for the heads-up on the steppings tho''. NK. -----Original Message----- From: centos-bounces@caosity.org [mailto:centos-bounces@caosity.org] On Behalf Of Matt Bottrell Sent: 08 March 2005 07:08 To: CentOS discussion and information list Subject: Re: [Centos] Installing a second processor Is the stepping the same for this CPU? Without the same stepping you may run into some bizzare SMP problems. It''s always prudent to buy dual processors at the same time (to get the same stepping). On Wed, 2 Mar 2005 02:09:23 +0100 (CET), Maciej ?enczykowski <maze@cela.pl> wrote:> it''s just a matter of running yum install kernel-smp if I''m not > mistaken and possibly fixing the grub/lilo configuration files. > > On Wed, 2 Mar 2005, Nigel Kendrick wrote: > > > Thanks for the reply - is the smp install a simple yum command or a > > reinstall off the original CD''s - this is not something I have done > > before. > > > > -----Original Message----- > > From: centos-bounces@caosity.org [mailto:centos-bounces@caosity.org] > > On Behalf Of Maciej ?enczykowski > > Sent: 02 March 2005 00:22 > > To: CentOS discussion and information list > > Subject: Re: [Centos] Installing a second processor > > > > > > you should be able to drop it in just fine, but you''ll need to > > install an smp kernel in order to actually make use of the second > > processor (unless your kernel is already smp, which is unlikely). > > just install the same kernel you now have but with smp in the rpm > > package name and use that as the lilo/grub default (test first of > > course) kernel. > > > > On Wed, 2 Mar 2005, Nigel Kendrick wrote: > > > > > I have Centos-3 running on a Dell PowerEdge 1300 (PIII-450) - it''s > > > a dual processor board but with a single processor currently > > > fitted. I have just purchased a second PIII-450 processor on eBay > > > (for ?10!!) - can I just drop it in the system or do I need to > > > reinstall the OS or reconfigure anything software-wise? > > > > > > Thanks > > > > > > NK > > > > > > > > > _______________________________________________ > > > CentOS mailing list > > > CentOS@caosity.org > > > http://lists.caosity.org/mailman/listinfo/centos > > > > > _______________________________________________ > > CentOS mailing list > > CentOS@caosity.org http://lists.caosity.org/mailman/listinfo/centos > > > > _______________________________________________ > > CentOS mailing list > > CentOS@caosity.org http://lists.caosity.org/mailman/listinfo/centos > > > _______________________________________________ > CentOS mailing list > CentOS@caosity.org http://lists.caosity.org/mailman/listinfo/centos >_______________________________________________ CentOS mailing list CentOS@caosity.org http://lists.caosity.org/mailman/listinfo/centos
Nigel Kendrick said:> As it happens they are B0 and C0 steppings!According to Intel, those steppings will work fine. http://download.intel.com/design/PentiumIII/specupdt/24445352.pdf (Look on page 13) -- William Hooper