•Ensure that the processor power cable is securely connected to the system board power connector (POWER2) (see System Board Components).
•Remove and then reinstall all memory modules (see Memory).
•Remove and then reinstall any expansion cards, including graphics cards (see Removing PCI and PCI Express Cards).
Eliminate interference — Some possible causes of interference are:
•Power, keyboard, and mouse extension cables
•Too many devices connected to the same power strip
•Multiple power strips connected to the same electrical outlet
Printer Problems
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTE: If you need technical assistance for your printer, contact the printer's manufacturer.
Check the printer documentation — See the printer documentation for setup and troubleshooting information.
Ensure that the printer is turned on
Check the printer cable connections —
•See the printer documentation for cable connection information.
•Ensure that the printer cables are securely connected to the printer and the computer.
Test the electrical outlet — Ensure that the electrical outlet is working by testing it with another device, such as a lamp.
Verify that the printer is recognized by Windows —
Windows XP:
1.Click Start→ Control Panel→ Printers and Other Hardware→ View installed printers or fax printers.
2.If the printer is listed,
3.Click Properties→ Ports. For a parallel printer, ensure that the Print to the following port(s): setting is LPT1 (Printer Port). For a USB printer, ensure that the Print to the following port(s): setting is USB.
Windows Vista:
1.Click Start 
→ Control Panel→ Hardware and Sound→ Printer.
2.If the printer is listed,
3.Click Properties and click Ports.
4.Adjust the settings, as needed.
Reinstall the printer driver —
See the printer documentation for information on reinstalling the printer driver. —
Scanner Problems
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTE: If you need technical assistance for your scanner, contact the scanner's manufacturer.
Check the scanner documentation — See the scanner documentation for setup and troubleshooting information.
Unlock the scanner — Ensure that your scanner is unlocked (if the scanner has a locking tab or button).
Restart the computer and try the scanner again
Check the cable connections —
•See the scanner documentation for information on cable connections.
•Ensure that the scanner cables are securely connected to the scanner and the computer.
