System Flash Codes

When errors that occur during the boot routine cannot be reported on the integrated display or on an external monitor (if attached), the keyboard status indicators (see Figure C-1) may flash together in a pattern of lights (a flash code) that identifies the problem. For example, one flash, followed by a second flash, and then a burst of three flashes (code 1-1-3) means that the computer was unable to read the data in nonvolatile random-access memory (NVRAM). This information is important to the Dell support staff if you need to call for technical assistance.

The keyboard status indicators flash briefly when the computer is turned on. The flash codes, if needed, occur after the boot routine.

scroll lock capitals lock numbers lock indicator indicator indicator scroll lock capitals lock numbers lock indicator indicator indicator

Figure C-1. Keyboard Status Indicators as Flash Code Indicators

When the computer emits a flash code, write it down on a copy of the Diagnostics Checklist (see Figure 5-1) and then look up its cause and meaning in Table C-2. If you are unable to resolve the problem, run the Dell Diagnostics to identify a more serious cause. (See "Running the Dell Diagnostics " in Chapter 3 for instructions.) If you are unable to resolve the problem, call Dell for technical assistance. (See Chapter 5, "Getting Help, " for instructions.)

Table C-2. Flash Codes and Corrective Actions

Message Cause Action

1-1-3 NVRAM write/read failure. Run the System Board Devices tests in the Dell

Diagnostics. For instructions, see "Running the Dell Diagnostics " in Chapter 3. If the program does not load, call Dell for technical assistance. For instructions, see Chapter 5, "Getting Help "

1-1-4 ROM BIOS checksum failure. Run the System Board Devices tests in the Dell

Diagnostics. For instructions, see "Running the Dell Diagnostics " in Chapter 3. If the program does not load, call Dell for technical assistance. For instructions, see Chapter 5, "Getting Help "

Run the System Board Devices tests in the Dell Diagnostics. For instructions, see "Running the Dell Diagnostics in Chapter 3. If the program does not load, call Dell for technical assistance. For instructions, see Chapter 5, "Getting Help "

1-2-2 DMA initialization failure. Run the System Board Devices tests in the Dell

Diagnostics. For instructions, see "Running the Dell Diagnostics in Chapter 3. If the program does not load, call Dell for technical assistance. For instructions, see Chapter 5, "Getting Help "

Run the System Board Devices tests in the Dell Diagnostics. For instructions, see "Running the Dell Diagnostics in Chapter 3. If the program does not load, call Dell for technical assistance. For instructions, see Chapter 5, "Getting Help .

Make sure that a memory module is installed in one of the memory module sockets on the system board. The computer will not function unless at least one memory module is installed. For instructions, see "Installing Memory Modules " in Chapter 2.

3-1-1 Slave DMA register failure. Run the System Board Devices tests in the Dell

Diagnostics. For instructions, see "Running the Dell Diagnostics " in Chapter 3. If the program does not load, call Dell for technical assistance. For instructions, see Chapter 5, "Getting Help "

NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary in the system Help.

1-2-1 Programmable interval timer fail ure.

1-2-3 DMA page register write/read fail ure.

1-3-1 An installed memory module is through not being properly identified or

Message

Cause

Action

3-1-2

Master DMA register failure.

Run the System Board Devices tests in the Dell Diagnostics. For instructions, see "Running the Dell Diagnostics " in Chapter 3. If the program does not load, call Dell for technical assistance. For instructions, see Chapter 5, "Getting Help "

3-1-3

Master interrupt mask register failure.

Call Dell for technical assistance. For instructions, see Chapter 5, "Getting Help "

3-1-4

Slave interrupt mask register failure.

Call Dell for technical assistance. For instructions, see Chapter 5, "Getting Help .

3-2-4

Keyboard controller test failure.

Run the PC-AT Compatible Keyboards test in the Dell Diagnostics. For instructions, see "Running the Dell Diagnostics in Chapter 3.

3-3-4

Display memory test failure.

Run the VESA/VGA Interface test in the Dell Diagnostics. For instructions, see "Running the Dell Diagnostics in Chapter 3.

3-4-1

Display initialization failure.

Run the VESA/VGA Interface tests in the Dell Diagnostics. For instructions, see "Running the Dell Diagnostics in Chapter 3.

3-4-2

Display retrace test failure.

Run the VESA/VGA Interface tests in the Dell Diagnostics. For instructions, see "Running the Dell Diagnostics in Chapter 3.

4-2-1

No timer tick.

Call Dell for technical assistance. For instructions, see Chapter 5, "Getting Help "

4-2-2

Shutdown failure.

Call Dell for technical assistance. For instructions, see Chapter 5, "Getting Help .

4-2-3

Gate A20 failure.

Call Dell for technical assistance. For instructions, see Chapter 5, "Getting Help .

4-2-4

Unexpected interrupt in protected mode.

Call Dell for technical assistance. For instructions, see Chapter 5, "Getting Help .

4-3-1

Memory failure above address 0FFFFh.

Run the System Memory tests in the Dell Diagnostics. For instructions, see "Running the Dell Diagnostics in Chapter 3.

4-3-3

Timer chip counter 2 failure.

Call Dell for technical assistance. For instructions, see Chapter 5, "Getting Help .

4-3-4

Time-of-day clock stopped.

Call Dell for technical assistance. For instructions, see Chapter 5, "Getting Help .

Message

Cause

Action

4-4-1

Serial port failure.

Run the Serial Ports tests in the Dell Diagnostics. For instructions, see "Running the Dell Diagnostics" in Chapter 3.

5-1-2

No usable memory.

Run the System Memory tests in the Dell Diagnostics. For instructions, see "Running the Dell Diagnostics" in Chapter 3.

NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary in the system Help.

NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary in the system Help.

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