How to access and run HP PC Hardware Diagnostics
You can run the diagnostics from one of three places, depending on your preference and the health of the computer.
1.Turn on the computer and press Esc repeatedly until the BIOS Boot Menu appears.
2.Press F2 or select Diagnostics (F2).
Pressing F2 signals the system to search for the diagnostics in the following locations:
a.A connected USB drive (to download the diagnostics tools to a USB drive, see the instructions in Downloading HP PC Hardware Diagnostics to a USB device on page 187)
b.The hard disk drive
c.A core set of diagnostics in the BIOS (for memory and hard disk drive) that are accessible only if the USB or hard disk drive versions are not detected
186 Appendix B HP PC Hardware Diagnostics