windows 2003 server repair

i have HP proliant ml330 G3 in my office, last week by mistake the electricity has been cut off. after that we powered it on. but it could not find the Hard drive. so i tried to configure the BIOS. eventually the server success to see the hard drive but the windows 2003 reboots itself in the initial windows start stage (windows 2003 logo + black background).
to solve the problem i tried to repair the windows 2003 by the windows 2003 CD. but it informed me that " Setup either detected multiple disks in your machine that are indistinguishable or detected raw disks".

please i need your helps to recovery windows 2003 server ASAP

thank you all