NMI Error

Hello,

I have a 1U assembled rack server with the following config :
P-IV / 2.4 Ghz / 1GB RAM / 80 x 2 GB SATA HDD 
RedHat Linux 9 installed.

I have been getting the following error since the last few days and am
unable to find out the reason for the same, and also how to rectify
the same.
I have an identical machine with the same configuration and the same
OS, but do not get the same error on that.

Would appreciate your help, i got your reference from the /proc/interrupts file.

Thanks in advance.

Warm Regards,

Savio Dias