Dell 320 manual Beep Codes, Cause

Memory modules are detected, but a	• Ensure that no special memory module/memory connector placement requirements
memory configuration or compatibility error	exist (see Memory).
exists.	• Verify that the memory modules that you are installing are compatible with your
	computer (see Memory).
	• If the problem persists, (see Contacting Dell).
A failure has occurred.	• Ensure that the cables are properly connected to the system board from the hard
	drive, CD drive, and DVD drive.
This pattern also displays when you enter	• Check the computer message that appears on your monitor screen.
	• If the problem persists, (see Contacting Dell).
system setup and may not indicate a
problem (see System Setup).
After POST is complete, all four diagnostic	None.
lights turn green briefly before turning off
to indicate normal operating condition.

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. One possible beep code (code 1-3-1) 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.

If your computer beeps during start-up:

1.Write down the beep code on the Diagnostics Checklist.

2.Run the Dell Diagnostics to identify a more serious cause (see Dell Diagnostics).

3.Contact Dell for technical assistance (see Contacting Dell).

Code	Cause
1-1-2	Microprocessor register failure
1-1-3	NVRAM read/write failure
1-1-4	ROM BIOS checksum failure
1-2-1	Programmable interval timer failure
1-2-2	DMA initialization failure
1-2-3	DMA page register read/write failure
1-3	Video Memory test failure
1-3-1 through 2-4-4	Memory not being properly identified or used
3-1-1	Slave DMA register failure
3-1-2	Master DMA register failure
3-1-3	Master interrupt mask register failure
3-1-4	Slave interrupt mask register failure
3-2-2	Interrupt vector loading failure
3-2-4	Keyboard Controller test failure
3-3-1	NVRAM power loss
3-3-2	Invalid NVRAM configuration
3-3-4	Video Memory test failure
3-4-1	Screen initialization failure
3-4-2	Screen retrace failure
3-4-3	Search for video ROM failure
4-2-1	No timer tick
4-2-2	Shutdown failure
4-2-3	Gate A20 failure
4-2-4	Unexpected interrupt in protected mode
4-3-1	Memory failure above address 0FFFFh
4-3-3	Timer-chip counter 2 failure
4-3-4	Time-of-day clock stopped
4-4-1	Serial or parallel port test failure
4-4-2	Failure to decompress code to shadowed memory
4-4-3	Math-coprocessor test failure
4-4-4	Cache test failure