I saw this internal comment from Mark Stanfill and thought it was too good not to share. When moving to new hardware, this article is a good reference point: 249694 How to move a Windows installation to different hardware http://support.microsoft.com/default.aspx?scid=kb;EN-US;249694 This article pre-supposes that they know a lot of details about their server (ACPI settings, filter drivers, HAL, etc) that they may not have access to. You should set the expectation that they will likely have to change some BIOS settings and that failures are likely and will have to be troubleshot on a case-by-case basis. If they have any concerns, this is a case where a call to CSS is highly advisable. Mark Stanfill, MCSE+I, MCSE 2000/2003, MCDBA Technical Lead, SBS http://blogs.technet.com/sbs One really important item in the mail - " If you have any concerns - call the support desk " - in the UK this might cost a couple of hundred pounds, but when doing a recovery and you are having problems, it might save you days of sweat,...