Dell 2650 manual Support.dell.com

1-1-3	CMOS write/read failure; faulty	Replace the system board (see "System Board").
	system board.
1-1-4	BIOS error.	Update the BIOS firmware. Download the latest firmware from the Dell Support website at
		support.dell.com.
1-2-1	Programmable interval-timer	Replace the system board (see "System Board").
	failure; faulty system board.
1-2-2	DMA initialization failure.	Ensure that the memory modules are properly installed. If the problem persists, replace the faulty memory
		module(s) (see "Memory Modules").
1-2-3	DMA page register write/read
	failure.
1-3-1	Main-memory refresh verification
	failure.
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
3-1-1	Slave DMA-register failure.	Replace the system board (see "System Board").
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.	Check the keyboard cable and connector. If the problem persists, replace the keyboard. If the problem
		persists, replace the system board (see "System Board").
3-3-1	CMOS failure.	Replace the system board (see "System Board").
3-3-2	System configuration check failure.
3-3-3	Keyboard controller not detected.
3-3-4	Video memory test failure.
3-4-1	Screen initialization failure.
3-4-2	Screen-retrace test failure.
3-4-3	Video ROM search failure.
4-2-1	No timer tick.
4-2-2	Shutdown test failure.
4-2-3	Gate A20 failure.
4-2-4	Unexpected interrupt in protected	Ensure that the expansion cards are properly installed. If the problem persists, replace the faulty expansion
	mode.	card(s) (see "Expansion Cards").
4-3-1	Improperly installed or faulty	Ensure that the memory modules are properly installed. If the problem persists, replace the faulty memory
	memory modules.	module(s) (see "Memory Modules").
4-3-2	No memory modules installed in	Install memory modules in bank 1 of the same type and size (see "Memory Modules").
	bank 1.
4-3-3	Faulty system board.	Replace the system board (see "System Board").
4-3-4	Time-of-day clock stopped.	Ensure that the system battery is properly installed. If the problem persists, replace the battery (see
		"System Battery").
4-4-1	Super I/O chip failure; faulty	Replace the system board (see "System Board").
	system board.
4-4-2	BIOS-shadowing failure.	Ensure that the system cooling fans are properly installed. If the problem persists, replace the faulty fan(s)
		(see "System Fans"). If the problem persists, replace the system board (see "System Board").
4-4-3	Microprocessor speed control	Ensure that the microprocessors are properly installed. If the problem persists, replace the faulty
	sequence failure.	microprocessor(s) (see "Microprocessors"). If the problem persists, replace the system board (see "System
		Board").
4-4-4	Cache test failure; faulty
	microprocessor.

Warning Messages

A warning message alerts you to a possible problem and asks you to take corrective action before the system continues a task. For example, before you format a diskette, a message may warn you that you may lose all data on the diskette. Warning messages usually interrupt the procedure and require you to respond by typing y (yes) or n (no).