HP Vectra XA 5/xxx HP Vectra XA 5/XXX Series 5 PC Minitower User’s Gu - Page 44

3 Troubleshooting Your PC If Your PC Does Not Start Properly Check Internal Items If the PC still does not start properly, follow this procedure to check the internal items: 1 Turn off the display, the computer, and all external devices. 2 Unplug all power cords and cables, noting their positions. Disconnect the PC from any telecommunications network. 3 Remove the cover. 4 Check the following items: Action Reference Check all internal cables. Check that the processor speed switches have been set correctly. Check that the memory modules are correctly installed. Check that accessory boards are firmly seated in their slots. Verify that any switches and jumpers on the accessory boards are properly set. Check that the switches on the system board are properly set. Ensure they are correctly attached and firmly in place. Refer to "System Board Switches" on page 51. Refer to "Installing Memory" on page 17. Refer to "Installing Accessory Boards" on page 28. Refer to the manuals that came with each board. Refer to "System Board Switches" on page 51. 5 Replace the cover. 6 Reconnect all cables and power cords. 7 Turn on the display and computer. Rebuild Your PC's Components If your PC still does not start properly, remove all boards and accessories, except the hard disk drive and the MGA Millennium board. Start the PC. If the PC now works, add the boards and accessories one at a time to determine which one is causing the problem. If You Cannot Start Your PC from a Modem If you are running Windows 95 and you have chosen the option to start your PC from a modem, and this option does not work, then you need to change the IRQ setting in the HP Setup program. 34 English