Startup Problems - HP OmniBook 510 - Notebook PC Reference Manual

Troubleshooting and Maintenance
Troubleshooting Your Computer
If the serial or parallel port is not working
• Make sure the port connection is secure.
• Check the port settings in Control Panel: open the hardware Device Manager, then
double-click Ports (COM & LPT).
• Use the BIOS Setup utility to make sure the serial and parallel ports are enabled—see
"To run the BIOS Setup utility" on page 131.
• Test the ports with the e-Diagtools diagnostics—see "Testing the Hardware" on
page 129.
If the USB port is not working
• Contact the vendor of the peripheral device or check the HP Notebook web site
(www.hp.com/notebooks) for the latest versions of the USB drivers and the driver for
the device.
• Check the port settings in Control Panel: open the hardware Device Manager, then
double-click Universal Serial Bus Controller.
• Test the USB port with the e-Diagtools diagnostics— see "Testing the Hardware" on
page 129.
If a floppy drive connected to the USB port doesn't work
• For Windows 98, if you connect an HP floppy drive using the USB floppy cable, it is
assigned a drive letter greater than C. You cannot access the drive using drive A or B.
• For Windows 98, if you connect a non-HP floppy drive to a USB port, it may prevent
the computer from booting. Try disconnecting the drive while booting, or disable the
Legacy USB Support setting in BIOS Setup.

Startup Problems

If the computer doesn't respond when you turn it on
• Connect the AC adapter.
• Try turning on the unit by pressing the blue sleep button.
• Reset the computer by inserting a straightened paper clip into the system-off switch
on the left side of the computer. Then turn it on by pressing the blue sleep button.
• Don't touch the pointing stick while booting or resuming.
126 Reference Guide