Dell 840 manual System Beep Codes, Faulty system board. See Getting Help on

System Beep Codes

If an error that cannot be reported on the screen occurs during POST, the system may emit a series of beeps that identifies the problem.

NOTE: If the system boots without a keyboard, mouse, or monitor attached, the system does not issue beep codes related to those peripherals.

If a beep code is emitted, write down the series of beeps and then look it up in Table 1-7. If you are unable to resolve the problem by looking up the meaning of the beep code, use system diagnostics to identify the possible cause. If you are still unable to resolve the problem, see "Getting Help" on page 121.

Table 1-7. System Beep Codes

Code	Cause	Corrective Action
1-1-2	CPU register test failure	See "Troubleshooting the Microprocessor" on
		page 109.
1-1-3	CMOS write/read failure; faulty	Faulty system board. See "Getting Help" on
	system board	page 121.
1-1-4	BIOS error	Reflash the BIOS.
1-2-1	Programmable interval-timer failure;	Faulty system board. See "Getting Help" on
	faulty system board	page 121.

1-2-2 DMA initialization failure

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

1-3-1 Main-memory refresh verification failure

See "Troubleshooting System Memory" on page 100.

1-3-2 No memory installed

1-3-3 Chip or data line failure in the first

64 KB of main memory

1-3-4 Odd/even logic failure in the first 64 KB of main memory

1-4-1 Address line failure in the first 64 KB of main memory

1-4-2 Parity failure in the first 64 KB of main memory

1-4-3 Fail-safe timer test failure

1-4-4 Software NMI port test failure

2-1-1 Bit failure in the first 64 KB of main through memory

2-4-4

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