|DID YOU ACTUALLY MEAN HP Pavilion Media Center TV m8100n PC (GC673AA) ??|
If so this is the Vista BIOS File sp37530.exe
"MCP61PM-HM Motherboard BIOS update resolves issue with systems with 4GB RAM not waking up from S3 mode and updates AGESA to version 2.08.15"
It will work on Windows 7, but you may need to run in compatibility mode: