HP PC Hardware Diagnostics UEFI helps you diagnose and fix PC memory, disk, etc, problems on Startup. Learn how to use it, install it or disable it.

The HP System Diagnostics will test your HP computer’s hardware outside of the operating system. If you do not want to run the System Diagnostics, you can click Cancel.

What Danger Mouse said. Grab the latest SmartStart ISO for that model of server and you should find that HP Diagnostics are included on the ISO when you boot it.