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System Codes and Messages: Dell Dimension 4300

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System Codes and Messages

Dell™ Dimension™ 4300

  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


Corrective Action

Power up default.

Make sure that the computer is connected to a known working electrical outlet, and then check whether the front-panel power light on the power button is on or off. If the power light is off, check the power supply. If the problem persists, see "Contacting Dell" in the Solutions Guide for instructions on obtaining technical assistance.

See "Safety Instructions," and then remove all cards. If the computer still does not start, see "Contacting Dell" in the Solutions Guide for instructions on obtaining technical assistance.

System board is receiving power, but the BIOS is not executing.

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 remove all cards and restart the computer to determine if a resource conflict exists. If conflict exists, see Resolving Software and Hardware Incompatibilities If the problem persists, see "Contacting Dell" in the Solutions Guide for instructions on obtaining technical assistance.

Recovery mode from BIOS failure.

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 remove all cards and restart the computer to determine if a resource conflict exists. If conflict exists, see Resolving Software and Hardware Incompatibilities If the problem persists, see "Contacting Dell" in the Solutions Guide for instructions on obtaining technical assistance.

Microprocessor has failed a BIOS test.

If the problem persists, see "Contacting Dell" in the Solutions Guide for instructions on obtaining technical assistance.

Memory failed to be sized or enabled.

Reseat the memory modules.  If the problem persists, see "Contacting Dell" in the Solutions Guide for instructions on obtaining technical assistance.

PCI bus failure has occurred.

See "Safety Instructions," and then remove all cards and restart the computer to determine if a resource conflict exists. If conflict exists, see Resolving Software and Hardware Incompatibilities If the problem still persists, see "Contacting Dell" in the Solutions Guide for instructions on obtaining technical assistance.

Video controller failed to initialize or respond.

If the computer has a video card, reseat the video card. If the problem persists or the computer has integrated video, see "Contacting Dell" in the Solutions Guide for instructions on obtaining technical assistance.

IDE bus failure has occurred.

Reseat the drive cables. If the problem persists, see "Contacting Dell" in the Solutions Guide for instructions on obtaining technical assistance.

USB port or a device connected to it has failed initialization.

Disconnect the device from the USB connector. If the problem persists, see "Contacting Dell" in the Solutions Guide for instructions on obtaining technical assistance.

Other failure.

See "Contacting Dell" in the Solutions Guide for instructions on obtaining technical assistance.

Computer has started and turned over control to the operating system.

No action is necessary.


POST Beep Codes

If the monitor cannot display errors or problems, during POST the computer might emit a series of beeps, or beep code, that identifies the problem. The POST beep codes are listed below.

Beep Codes


Possible Cause


Corrective Action

1

A memory refresh failure occurred.

Reseat the memory modules.

2

Memory parity cannot be reset.

Reseat the memory modules.

3

A failure occurred in the first 64 KB of memory.

Reseat the memory modules.

4

The system timer is not operational.

See "Contacting Dell" in the Solutions Guide for instructions on obtaining technical assistance.

6

8042 Gate A20 cannot be toggled.

See "Contacting Dell" in the Solutions Guide for instructions on obtaining technical assistance.

7

An exception interrupt error occurred.

See "Contacting Dell" in the Solutions Guide for instructions on obtaining technical assistance.

8

A read/write error occurred in the display memory.

See "Contacting Dell" in the Solutions Guide for instructions on obtaining technical assistance.

10

A CMOS shutdown register test error occurred.

See "Contacting Dell" in the Solutions Guide for instructions on obtaining technical assistance.

11

An invalid BIOS is installed.

See "Contacting Dell" in the Solutions Guide for instructions on obtaining technical assistance.


System Messages

Message

Possible Cause

Corrective Action

8042 Gate-A20 error

The keyboard controller failed its test.

If you receive this message after making changes in the system setup program, enter the program and restore the original value(s).

Address Line Short!

Error in the address decoding circuitry in the memory.

Reseat the memory modules.

C: Drive Error

C: Drive Failure

The hard drive is not working or is not configured correctly.

Ensure that the drive is installed correctly in the computer and defined correctly in the system setup program.

Cache Memory Bad, Do Not Enable Cache

Cache memory is not operating.

See "Contacting Dell" in the Solutions Guide for instructions on obtaining technical assistance.

CH-2 Timer Error

An error is occurring on the timer on the system board.

See "Contacting Dell" in the Solutions Guide for instructions on obtaining technical assistance.

CMOS Battery State Low

CMOS Checksum Failure

CMOS System Options Not Set

CMOS Display Type Mismatch

CMOS Memory Size Mismatch

CMOS Time and Date Not Set

The system configuration information in the system setup program is incorrect, or the battery charge may be low.

Enter the system setup program and verify the system configuration; then restart the computer.

Diskette Boot Failure

Drive A or B is present but has failed the BIOS POST.

Ensure that the drive is installed correctly in the computer and defined correctly in the system setup program. Check the interface cable at both ends.

DMA Error

DMA 1 Error

DMA 2 Error

Error in the DMA controller on the system board.

The keyboard or system board may need to be replaced.

FDD Controller Failure

HDD Controller Failure

BIOS cannot communicate with the floppy drive or hard drive controller.

Ensure that the floppy drive or the hard drive is installed correctly in the computer and defined correctly in the system setup program. Check the interface cable at both ends.

INTR1 Error

INTR2 Error

Interrupt channel on the system board failed to POST.

The keyboard or system board may need to be replaced.

Invalid Boot Diskette

The operating system cannot be located on drive A or drive C.

Enter the system setup program and confirm that drive A or drive C is properly identified.

Keyboard Error

The BIOS has detected a stuck key.

Make sure that nothing is resting on the keyboard; if a key appears to be stuck, carefully pry it up. If the problem persists, you may need to replace the keyboard.

KB/Interface Error

An error occurred with the keyboard connector.

Make sure that nothing is resting on the keyboard; if a key appears to be stuck, carefully pry it up. If the problem persists, you may need to replace the keyboard.

No ROM Basic

The operating system cannot be located on drive A or drive C.

Enter the system setup program and confirm that drive A or drive C is properly identified.


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