Do you see green lights on the back next the p/s ? Have you tried different monitors ? Its possible your server is bad (RMA is the only option). If you have registered smartnet you can get replacement (Cisco will work with IBM to get you a replacement server). If you dont have smarnet, you should still be under 90 day warranty (if this is a new server), so you should have a lead time of upto 10 days to get a replacement server if you RMA direct with Cisco.
HTH
Sankar.
PS: please remember to rate posts!
Sankar Nair
UC Solutions Architect
Pacific Northwest | CDW
CCIE Collaboration #17135 Emeritus