HP Proliant DL360 G5 server with 2 dual core Xeon processors only shows Processor 0 online after the "display processors" command is given. Another server with exact same specs shows Processor 0, 1, 2, & 3 online. BIOS sees both procs and all HP hardware diags pass @ 100% success.

I reseated the procs and even switched slots, but the problem still exists. This is the main file server for a public high school for teachers and students so is fairly critical.

Please advise...

Thanks to all!