topic Re: Cannot detect dual processor in Operating System - Linux

Cannot detect dual processor

mjsunil — Wed, 08 Sep 2004 03:06:37 GMT

Hi,
We have installed Redhat AS2.1 (2.4.9-e.49smp) in a compaq ML 570 base version server. The OS is unable to detect 2 CPU's. When we had windows 2000 earlier the OS has detected 2 cpu's. checked the dmesg and found a message "SMP motherboard not detected." What should I do to enable dual processor support.

rgds-mjs

Re: Cannot detect dual processor

Vitaly Karasik_1 — Wed, 08 Sep 2004 05:43:10 GMT

Does BIOS see both CPUs?
Did you set "LINUX" as OS in BIOS?

Re: Cannot detect dual processor

Nobody's Hero — Wed, 08 Sep 2004 08:41:43 GMT

I had a similar problem during a fresh install of RH9. I was adding a second processor to a linux box and I compiled an smp kernel. But the system would not recognize the second CPU.

I did a fresh install with both cpu's installed and everything went fine.
Try a fresh install with both CPU's installed.

Re: Cannot detect dual processor

Stuart Browne — Wed, 08 Sep 2004 18:24:34 GMT

Also, what's the MPS table mode set to in the BIOS?