Dell SX260 When to Use the Dell Diagnostics, Starting the Dell Diagnostics

1-3	Video Memory Test failure	Run the VESA/VGA Interface tests in the Dell Diagnostics.
1-3-1 through 2-4-	DIMMs not being properly identified or used	See "Memory Problems."
4
3-1-1	Slave DMA register failure	Run the System Board Devices tests in the Dell Diagnostics, if possible.
3-1-2	Master DMA register failure	Run the System Board Devices tests in the Dell Diagnostics, if possible.
3-1-3	Master interrupt mask register failure	Contact Dell for technical assistance.
3-1-4	Slave interrupt mask register failure	Contact Dell for technical assistance.
3-2-2	Interrupt vector loading failure	Contact Dell for technical assistance.
3-2-4	Keyboard Controller Test failure	Run the Keyboard tests in the Dell Diagnostics. Otherwise, contact Dell for technical
		assistance.
3-3-1	NVRAM power loss	Run the System Board Devices tests in the Dell Diagnostics, if possible.
3-3-2	NVRAM configuration	Run the System Board Devices tests in the Dell Diagnostics, if possible.
3-3-4	Video Memory Test failure	Run the VESA/VGA Interface tests in the Dell Diagnostics.
3-4-1	Screen initialization failure	Run the VESA/VGA Interface tests in the Dell Diagnostics.
3-4-2	Screen retrace failure	Run the VESA/VGA Interface tests in the Dell Diagnostics.
3-4-3	Search for video ROM failure	Run the VESA/VGA Interface tests in the Dell Diagnostics.
4-2-1	No time tick	Contact Dell for technical assistance.
4-2-2	Shutdown failure	Contact Dell for technical assistance.
4-2-3	Gate A20 failure	Contact Dell for technical assistance.
4-2-4	Unexpected interrupt in protected mode	Contact Dell for technical assistance.
4-3-1	Memory failure above address 0FFFFh	Run the System Memory tests in the Dell Diagnostics.
4-3-3	Timer-chip counter 2 failure	Contact Dell for technical assistance.
4-3-4	Time-of-day clock stopped	Contact Dell for technical assistance.
4-4-1	Serial or parallel port test failure	Run the Serial Ports and the Parallel Ports tests in the Dell Diagnostics.
4-4-2	Failure to decompress code to shadowed	Run the System Board Devices tests in the Dell Diagnostics, if possible.
	memory
4-4-3	Math-coprocessor test failure	Run the System Board Devices tests in the Dell Diagnostics, if possible.
4-4-4	Cache test failure	Run the System Board Devices tests in the Dell Diagnostics, if possible.

Dell Diagnostics

When to Use the Dell Diagnostics

If you experience a problem with your computer, run the Dell Diagnostics before you contact Dell for technical assistance. Running the Dell Diagnostics may help you resolve the problem without contacting Dell. If you do contact Dell, the test results can provide important information for Dell's service and support personnel.

The Dell Diagnostics allow you to:

•Perform express, extended, or custom tests on one or all devices

•Select tests based on a symptom of the problem you are having

•Choose how many times a test is run

•Display test results

•Suspend testing if an error is detected

•Access online help information that describes the tests and devices

•Receive status messages that tell you whether tests completed successfully

•Receive error messages if problems are detected

Starting the Dell Diagnostics

It is recommended that you print these procedures before you begin.

NOTICE: Only use the Dell Diagnostics to test your Dell™ computer. Using this program with other computers can result in error messages.