Try HP's built-in "Crisis Recovery" method:

The is a durable business desktop (available in Small Form Factor, Tower, and Ultra-Slim Desktop models). However, a common failure point is a corrupted BIOS. If your machine powers on but shows a black screen (often with fans spinning at maximum speed), you likely need a clean BIOS .bin file to flash the chip.

The HP Compaq 8200 Elite typically uses the . Before proceeding with any flashing, confirm your system's current status:

If your PC still POSTs, do not use a BIN file. Use HP’s official tool.