look at post 167 here
you may find this info useful
For most HP laptop PCs, these special keys provide the following types of functions:
Esc: Displays the POST (power on self test) message that occurs at initial device bootup, along with other status information as devices are checked and come online. This also provides easy access to the Windows Vista boot menu, where you can enable various safe modes, repair and logging tools, and more.
F1: Displays system information, including laptop PC make and model, system board ID, processor type and speed, memory size, boot ROM data, and BIOS version.
F2: Runs a startup check that inspects the RAM and hard disks.
F9: Starts the Boot Device menu, which lets you examine and reorder available boot devices on your laptop PC.
F10: Invokes the Computer Setup routines from the laptop PC's EPROM where you can examine settings or change your system configuration. Available options include interface language, boot options, and device configurations (which permit use of virtualization technology and button sounds to be enabled or disabled).
F11: Invokes the HP Recovery Manager, a utility that guides users through system repair when system problems require immediate action.
BIOS, driver, and other system software updates for HP laptop PCs may be accessed through the HP Update program. To use this tool, select Start > All Programs > HP, and then select HP Update to start the HP Update Wizard, as shown in Figure 4.
it is from here