This is a hardware cpu/bios issue, as others have mentioned. I'm not familiar with HP's server line, but with Dell, their generation 8 servers (2800, 2850, etc) have the same issue. These are the first Intel processors that supported 64 bit, but they do not support 64-bit guest operating systems as they don't have the virtualization technology. To get that, you must have a generation 9 server (1950, 2950, etc) that has the option in the bios to support 64-bit guest systems.
It has to do with the processors and what they can support. -Bonnie -----Original Message----- From: Juned Shaikh [mailto:jsha...@gmail.com] Sent: Thursday, April 09, 2009 2:57 PM To: NT System Admin Issues Subject: Re: Win2k8 - 64Bit on ESX I looked everywhere in the BIOS settings and found no reference to enabling or disabling the 64Bit. However the BIOS possibility is ruled out because I am able to install it directly. It is only on VMware ESX 3.5 as virtual machine its not working..!! ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
