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Diagnostic Codes - Dell Dimension 4300S Manual

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System Codes and Messages
Dell™ Dimension™ 4300S
  Diagnostic Codes
  POST Beep Codes
  System Messages

Diagnostic Codes

Your computer is equipped with four diagnostic lights, which are labeled "A," "B," "C," and "D" on the back of the computer. Each of the four lights can be
yellow, green, or off as shown in the following table. When the computer is turned on or restarted and it is functioning normally, the lights flash during POST.
After the computer starts, the lights remain green to signify normal computer operation.
If a malfunction is detected and the computer fails to start, the lights display a code that identifies the problem. Write down the diagnostic code displayed and
look it up in the following table.
 
Diagnostic Code
Definition
 
Power up default.
 
System board is receiving
power, but the BIOS is not
executing.
 
Recovery mode from BIOS
failure.
 
Microprocessor has failed a
BIOS test.
 
Memory failed to be sized or
enabled.
 
PCI bus failure has occurred.
 
Video controller failed to
initialize or respond.
 
IDE bus failure has occurred.
 
USB port or a device
connected to it has failed
initialization.
Corrective Action
Make sure that the computer is connected to a known working electrical outlet, and then check
whether the front-panel power light on the
the power supply. If the problem persists, see "Contacting Dell" in the Owner's Manual for instructions
on obtaining technical assistance.
See
"Safety
Instructions," and then
"Contacting Dell" in the Owner's Manual for instructions on obtaining technical assistance.
Set the
configuration jumper
to Maintenance mode, and restart the computer. Exit and save changes
in the
system setup
program. Turn off the computer and reset the configuration jumper to Normal
mode, and then restart the computer.
See
"Safety
Instructions," and then
resource conflict exists. If conflict exists, see
the problem persists, see "Contacting Dell" in the Owner's Manual for instructions on obtaining
technical assistance.
Set the
configuration jumper
to Maintenance mode and restart the computer. Exit and save changes in
the
system setup
program. Turn off the computer and reset the configuration jumper to Normal mode,
and then restart the computer.
See
"Safety
Instructions," and then
resource conflict exists. If conflict exists, see "Resolving Software and Hardware
the problem persists, see "Contacting Dell" in the Owner's Manual for instructions on obtaining
technical assistance.
If the problem persists, see "Contacting Dell" in the Owner's Manual for instructions on obtaining
technical assistance.
Reseat the memory
modules.  If the problem persists, see "Contacting Dell" in the Owner's Manual for
instructions on obtaining technical assistance.
See
"Safety
Instructions," and then
resource conflict exists. If conflict exists, see
the problem still persists, see "Contacting Dell" in the Owner's Manual for instructions on obtaining
technical assistance.
If the computer has a video card,
integrated video, see "Contacting Dell" in the Owner's Manual for instructions on obtaining technical
assistance.
Reseat the drive cables. If the problem persists, see "Contacting Dell" in the Owner's Manual for
instructions on obtaining technical assistance.
Disconnect the device from the
USB
Owner's Manual for instructions on obtaining technical assistance.
power button
is on or off. If the power light is off, check
remove all
cards. If the computer still does not start, see 
remove all cards
and restart the computer to determine if a
"Resolving Software and Hardware
remove all cards
and restart the computer to determine if a
remove all cards
and restart the computer to determine if a
"Resolving Software and Hardware
reseat the video
card. If the problem persists or the computer has
connector. If the problem persists, see "Contacting Dell" in the
Incompatibilities." If
Incompatibilities." If
Incompatibilities." If

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