Look And Listen; System Setup - Dell Precision 420 User Manual

6. If the problem is resolved, you have corrected a faulty connection.
7. If your monitor is not operating properly, see
8. If your keyboard is not operating properly, see
9. If your mouse or printer is not operating properly, see

Look and Listen

Looking at and listening to your system is important in determining the source of a problem. Look and listen for the indications described in
1.
If after looking and listening to your computer you have not resolved the problem, continue with the recommendations in
Table 1. Boot Routine Indications
Look/Listen for:
An error message
The monitor's power
indicator
The power indicator
The keyboard indicators
The diskette-drive access
indicator
The hard-disk drive access
indicator
A series of beeps
An unfamiliar constant
scraping or grinding sound
when you access a drive
The absence of a familiar
sound

System Setup

"Troubleshooting the
"Troubleshooting the
"Troubleshooting I/O
Action
See "Messages and Codes."
Most monitors have a power indicator (usually on the front bezel). If the monitor's power indicator does not light
up, see "Troubleshooting the Monitor."
Use the power indicator to help you identify a system problem when you press the power button to turn on the
computer but the system does not boot:
A blinking yellow power indicator before power-on self-test (POST) indicates that the power supply may be
l
faulty. In rare cases, the system board may be faulty. See
assistance from Dell.
A solid yellow power indicator before POST indicates that a device on the system board may be faulty or is
l
incorrectly installed. Be sure that the microprocessor is properly seated, remove all expansion
then reboot. If the system does not boot, see
from Dell.
A solid green power indicator and a beep code during POST indicate that a Rambus in-line memory
l
module (RIMM) may be faulty or is not properly seated.
Rambus continuity modules (C-RIMMs) in the empty sockets, and then reboot. Repeat this procedure until
you identify the faulty or improperly seated RIMM.
A solid green power indicator and no beep code and no video during POST indicate that the monitor or the
l
integrated video controller may be faulty. See
properly and is correctly connected, see
Dell.
A solid green power indicator and no beep code with video during POST indicate that an integrated
l
system board device may be faulty. See
Dell.
Most keyboards have one or more indicators (usually in the upper-right corner). Press <Num Lock>, <Caps
Lock>, and <Scroll Lock> to toggle the keyboard indicators on and off. If the keyboard indicators do not light up,
see "Troubleshooting the Keyboard."
The diskette-drive access indicator should quickly flash on and off when you access data on the diskette drive.
On a system running a Microsoft® Windows® operating system, you can test the drive by opening Windows
Explorer and clicking the icon for drive A. If the diskette-drive access indicator does not light up, see
"Troubleshooting Drives."
The hard-disk drive access indicator should quickly flash on and off when you access data on the hard-disk drive.
On a system running a Windows operating system, you can test the drive by opening Windows Explorer and
clicking the icon for drive C. If the hard-disk drive access indicator does not light up, see
Drives."
See "Messages and Codes."
Make sure that the sound is not caused by the application program you are running. The sound could be caused
by a hardware malfunction. See
When you turn on your system, you can hear the hard-disk drive spin up, and the system tries to access the boot
files from the hard-disk drive or the diskette drive. If your system boots, see
does not boot, see "Getting Help."
Monitor."
Keyboard."
Ports." Otherwise, see
"Getting Help" for instructions on getting technical assistance
Remove all RIMMs
"Troubleshooting the
"Getting Help" for instructions on getting technical assistance from
"Getting Help" for instructions on getting technical assistance from
"Getting Help" for instructions on getting technical assistance from Dell.
"Look and Listen."
"System
"Getting Help" for instructions on getting technical
and reinstall or pair with
Monitor." If the monitor is operating
"Troubleshooting
"Dell Diagnostics." If your system
Table
Setup."
cards, and