Windows Server 2008 (x64) won't boot past BIOS screen
Solution 1:
If you have an Enterprise Agreement with Software Assurance, you could take advantage of Microsoft DaRT (Diagnostics and Recovery Toolset).
DaRT is based on Windows PE, and includes a strong set of tools for troubleshooting and recovering unusable systems. It includes a registry editor, file explorer, and crash analyzer; as well as tools to restore files, repair disks, scan for viruses and more.