According to Microsoft (link), SQL Server 2008 supports up to 8TB of RAM, and Windows Server 2003 SP1 on X64 currently supports 1TB of RAM.

Two out-of-the-box solutions to your problem, both of which assume your server is x64 with 2TB of RAM installed, and your database is 1.0TB (more specific than you posed in your question), and Windows Server 2003 SP1 is installed on your server...

a. Remove half your memory in your desktop.

b. Wait for a version of Windows Server that supports more than 1TB of RAM and upgrade.

🙂