Parallel And Usb Problems - HP Pavilion XF125 Troubleshooting & Repair Manual

Parallel and USB Problems

If a USB mouse doesn't work properly
Make sure the mouse is securely connected to the USB port.
Put the notebook on standby, then resume.
Restart the notebook.
Check the mouse settings: click Start, Control Panel, Printers and Other Hardware, Mouse.
Make sure you followed the manufacturer's installation instructions completely and have installed
the mouse properly. If not, repeat the procedure.
Check the port settings in Control Panel: click Start, Control Panel, Performance and
Maintenance, System. On the Hardware tab, open the Device Manager, and double-click Ports
(COM & LPT).
If a USB modem doesn't work properly
See "Modem Problems" on page 17.
Make sure the modem is securely connected to the USB port.
Use the modem troubleshooter (under Networking problems) in Windows Help and Support.
Check the modem settings: click Start, Control Panel, Printers and Other Hardware, Phone and
Modem Options.
Disable the notebook's internal modem:
1. Click Start, Control Panel, Performance and Maintenance, System.
2. On the Hardware tab, open the Device Manager.
3. Double-click Modem, then double-click the internal modem.
4. Select the option to disable the modem.
Check the port settings: click Start, Control Panel, Performance and Maintenance, System. On the
hardware tab, open the Device Manager, then double-click Universal Serial Bus controllers.
If the parallel port is not working
Make sure the port connection is secure.
Check the port settings in Control Panel: click Start, Control Panel, Performance and
Maintenance, System. On the Hardware tab, open the Device Manager, and double-click Ports
(COM & LPT).
Test the ports with the e-DiagTools diagnostics—see "Using the e-Diagtools Diagnostic Tests" on
page 25.
If the USB port is not working
Contact the vendor of the peripheral device and 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: click Start, Control Panel, Performance and
Maintenance, System. On the Hardware tab, open the Device Manager, and double-click
Universal Serial Bus controllers.
Test the USB port with the e-DiagTools diagnostics— see "Using the e-Diagtools Diagnostic
Tests" on page 25.
20 Troubleshooting and Diagnostics ze1000 Series Troubleshooting and Self-Repair Guide