Dell XPS 420 owner manual Dma

book.book Page 84 Tuesday, November 27, 2007 10:29 AM

Message	Possible Cause	Corrective Action
CMOS Battery	The system	Enter the system setup
State Low	configuration	program (see "Entering
CMOS Checksum	information in the	System Setup" on
	system setup program	page 179), verify the
Failure
	is incorrect or the	system configuration, and
CMOS System	battery charge may be	then restart the computer.
Options Not Set	low.
CMOS Display Type
Mismatch
CMOS Memory Size
Mismatch
CMOS Time and
Date Not Set
Diskette Boot	Drive A or B is present	Ensure that the drive is
Failure	but has failed the BIOS	installed correctly in the
	POST.	computer (see "Drives" on
		page 128) and defined
		correctly in the system
		setup program (see
		"System Setup" on
		page 178). Check the
		interface cable at both
		ends.

DMA	Error	Error in the DMA
DMA	1 Error	controller on the
		system board.

The keyboard or system board may need to be replaced.

DMA 2 Error

84

Troubleshooting