Dell Latitude LM Reference and Troubleshooting Guide - Page 40

System Beep Codes, Run the System Set Test Group and the Keyboard Controller - bios

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Table 3-2. System Error Messages (Continued) Message Cause Action System CMOS checksum bad- run Setup The BIOS has been updated. CMOS has been corrupted or modified, possibly by an application program that changes data stored in CMOS. Reboot the computer and press to enter the Setup program and reconfigure the system. If the problem persists, call Dell for technical assistance. (For instructions, see Chapter 5, "Getting Help.") System RAM failed at offset: nnnn System RAM failed at address nnnn in the 64-KB block at which the error was detected. Call Dell for technical assistance. (For instructions, see Chapter 5, "Getting Help.") System timer error A chip on the system board may be malfunctioning. Run the System Set Test Group and the Keyboard Controller Test in the Dell Diagnostics. (For instructions, see Chapter 4, "Running the Dell Diagnostics.") NOTE: For the full name of an abbreviation or acronym used in this table, see the Glossary in the online System User's Guide. System Beep Codes When errors occur during the boot routine that cannot be reported on the built-in display or on an external monitor (if attached), the 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 Chapter 5, and then look it up in Table 3-3. 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. (See Chapter 4, "Running the Dell Diagnostics.") If you are still unable to resolve the problem, call Dell for technical assistance. (See Chapter 5, "Getting Help," for instructions.) . 3-6 Dell Latitude LM Reference and Troubleshooting Guide

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3-6
Dell Latitude LM Reference and Troubleshooting Guide
System Beep Codes
When errors occur during the boot routine that cannot be
reported on the built-in display or on an external monitor
(if attached), the 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 non-
volatile 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 Chapter 5, and then
look it up in Table 3-3. 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. (See
Chapter 4, “Running the Dell Diagnostics.”) If you are
still unable to resolve the problem, call Dell for technical
assistance. (See Chapter 5, “Getting Help,” for
instructions.)
.
System CMOS
checksum bad—
run Setup
The BIOS has been updated.
CMOS has been corrupted or
modified, possibly by an
application program that
changes data stored in
CMOS.
Reboot the computer and press <
F2
> to enter the Setup pro-
gram and reconfigure the system. If the problem persists, call
Dell for technical assistance. (For instructions, see Chapter 5,
“Getting Help.”)
System RAM
failed at off-
set:
nnnn
System RAM failed at
address
nnnn
in the 64-KB
block at which the error was
detected.
Call Dell for technical assistance. (For instructions, see
Chapter 5, “Getting Help.”)
System timer
error
A chip on the system board
may be malfunctioning.
Run the System Set Test Group and the Keyboard Controller
Test in the Dell Diagnostics. (For instructions, see Chapter 4,
“Running the Dell Diagnostics.”)
Table 3-2.
System Error Messages
(Continued)
Message
Cause
Action
NOTE:
For the full name of an abbreviation or acronym used in this table, see the Glossary in the online
System User’s Guide
.