Dell 710 H2C, DCDO Beep Codes, Memory, Express Cards, in your Owners Manual, Code Cause

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