بله.با تشکر از دوستان.

On a Dell Poweredge 2950 Server - Reboot server and login to BIOS (F2). Scroll down to CPU and hit enter. Make sure that 64 bit is Enabled. You will also see a setting for Virtualization. Set this to Enabled as well. Save your changes. Boot server normally and try installing your 64 bit Operating system (in my case Windows 2008). Installation runs normally now.