Dell GX520 manual Beep Codes, Code Cause

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:

1Write down the beep code.

2See "Dell Diagnostics" on page 28 to identify a more serious cause.

3Contact Dell for technical assistance. For information on contacting Dell, see your online

User’s Guide.

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

Quick Reference Guide

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