When errors occur during a boot routine that cannot be reported on the monitor, your computer may emit a series of beeps that identify the
problem. The beep code is a pattern of sounds: for example, one beep, followed by a second beep, and then a burst of three beeps (code 1-1-3)
means that the computer was unable to read the data in nonvolatile random-access memory (NVRAM). This information is invaluable to the Dell
support staff if you need to call for technical assistance.
When a beep code is emitted, write it down on a copy of the Diagnostics Checklist found in "
Getting Help
," and then look it up in Table 2. If you are
unable to resolve the problem by looking up the meaning of the beep code, use the
Dell Diagnostics
to identify a more serious cause. If you are still
unable to resolve the problem, see "
Getting Help
" for instructions on obtaining technical assistance.
Table 2. System Beep Codes
Warning Messages
A warning message alerts you to a possible problem and asks you to do something before execution continues. For example, before you format a
diskette, a message may warn you that you may lose all data on the diskette as a way to protect against inadvertently erasing or writing over the
Code
Cause
Action
1-1-2
Microprocessor register failure
See "
Getting Help
" for instructions on obtaining technical assistance.
1-1-3
NVRAM
Run the
System Board Devices
tests in the
Dell Diagnostics
.
1-1-4
ROM BIOS checksum failure
Run the
System Board Devices
tests in the
Dell Diagnostics
, if possible.
1-2-1
Programmable interval timer
Run the
System Board Devices
tests in the
Dell Diagnostics
, if possible.
1-2-2
Direct memory access (DMA)
initialization failure
Run the
System Board Devices
tests in the
Dell Diagnostics
, if possible.
1-2-3
DMA page register read/write failure
Run the
System Board Devices
tests in the
Dell Diagnostics
, if possible.
1-3
Video Memory Test failure
Run the
VESA/VGA Interface
tests in the
Dell Diagnostics
.
1-3-1 through
2-4-4
DIMMs not being properly identified
or used
See "
Troubleshooting System Memory
."
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
See "
Getting Help
" for instructions on obtaining technical assistance.
3-1-4
Slave interrupt mask register failure
See "
Getting Help
" for instructions on obtaining technical assistance.
3-2-2
Interrupt vector loading failure
See "
Getting Help
" for instructions on obtaining technical assistance.
3-2-4
Keyboard Controller Test failure
Run the
Keyboard
tests in the
Dell Diagnostics
. Otherwise, see "
Getting Help
" for
instructions on obtaining 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
See "
Getting Help
" for instructions on obtaining technical assistance.
4-2-2
Shutdown failure
See "
Getting Help
" for instructions on obtaining technical assistance.
4-2-3
Gate A20 failure
See "
Getting Help
" for instructions on obtaining technical assistance.
4-2-4
Unexpected interrupt in protected
mode
See "
Getting Help
" for instructions on obtaining 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
See "
Getting Help
" for instructions on obtaining technical assistance.
4-3-4
Time-of-day clock stopped
See "
Getting Help
" for instructions on obtaining 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 memory.
Run the
System Board Devices
tests in the
Dell Diagnostics
.
4-4-3
Math-coprocessor test failure
Run the
System Board Devices
tests in the
Dell Diagnostics
.
4-4-4
Cache test failure
Run the
System Board Devices
tests in the
Dell Diagnostics
.
Summary of Contents for OptiPlex GX100
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