Server goes into sleep mode

[Guest Bruce]

I have a 2003 Server, which is also used as a terminal server. The server

randomly goes into sleep mode while remote users are using the server. I

have gone into the power options as administrator, and set the everything to

Never shut off. This only started happening within the last year. Is there

a registry setting I can set, or can I disable ACPI in the bios. This is a

SuperMicro server about 4 years old