Solving Problems 341
To perform the power supply self-test:
1
Turn your computer off and disconnect the computer from the electrical outlet.
2
Disconnect the DC power supply connectors from the system board and all internal devices. The
procedure for disconnecting the power supply cables depends on the form factor of your computer:
• For the mini tower, see "Power Supply" on page79
• For the desktop, see "Power Supply" on page155
• For the small form factor, see "Power Supply" on page219
3
Connect your computer to a working electrical outlet.
4
Press and hold the power supply test button.
– If the test LED illuminates, the power supply is functioning properly. Connect the DC power
supply connector to the system board, and then perform the test again. Continue to connect
devices (one at a time) and perform the self-test until the test LED fails to illuminate and a faulty
device is identified. Replace the defective device/part or contact Dell (see "Contacting Dell" on
page370).
– If the test LED does not illuminate, the power supply is defective. Replace the power supply or
contact Dell (see "Contacting Dell" on page370).
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, right-click the printer icon.
3
Click
Propertie s
→
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
.