Memory modules are

Ensure that no special requirements for memory module/connector

detected, but a

placement exist (see Memory).

memory

Ensure that the memory you are using is supported by your computer (see

configuration or

Memory).

compatibility error

If the problem persists, contact Dell (see "Contacting Dell" in your Owner's

has occurred.

Manual).

A possible expansion

1. Determine if a conflict exists by removing an expansion card (not a

card failure has

graphics card) and restarting the computer (see Removing PCI and PCI

occurred.

Express Cards).

 

2. If the problem persists, reinstall the card you removed, then remove a

 

different card and restart the computer.

 

3. Repeat this process for each expansion card installed. If the computer

 

starts normally, troubleshoot the last card removed from the computer for

 

resource conflicts (see "Resolving Software and Hardware Incompatibilities"

 

in your Owner's Manual).

 

4. If the problem persists, contact Dell (see "Contacting Dell" in your Owner's

 

Manual).

Another failure has

Ensure that all hard drive and CD/DVD drive cables are properly connected

occurred.

to the system board (see System Board Components).

 

If there is an error message on the screen identifying a problem with a

 

device (such as the floppy drive or hard drive), check the device to make

 

sure it is functioning properly.

 

If the operating system is attempting to boot from a device (such as the

 

floppy drive or CD/DVD drive); check system setup (see System Setup) to

 

ensure the boot sequence is correct for the devices installed on your

 

computer.

 

If the problem persists, contact Dell (see "Contacting Dell" in your Owner's

 

Manual).

Beep Codes

Your computer might emit a series of beeps during start-up if the monitor cannot display errors or problems. This series of beeps, called a beep code, identifies a problem. For example, beep code 1-3-1 (one possible beep code) consists of one beep, a burst of three beeps, and then one beep. This beep code tells you that the computer encountered a memory problem.

Reseating the memory modules may correct the following beep code errors. If the problem persists, see "Contacting Dell" in your Owner's Manual for instructions on obtaining technical assistance.

Code Cause

1-3-1 through 2-4-4 Memory not being properly identified or used

4-3-1

Memory failure above address 0FFFFh

If you experience any of the following beep code errors, see "Contacting Dell" in your Owner's Manual for instructions on obtaining technical assistance.

Code Cause

1-1-2 Microprocessor register failure

1-1-3 NVRAM

1-1-4 ROM BIOS checksum failure

1-2-1 Programmable interval timer 1-2-2 DMA initialization failure

1-2-3 DMA page register read/write failure

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Dell 710 H2C, DCDO service manual Beep Codes, Code Cause

710 H2C, DCDO specifications

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