System Beep Codes - Dell OptiPlex N Troubleshooting Manual

Message
Warning -
Thermal Probes
failed.
Warning -
Temperature
is too high.
Write fault
Write fault on
selected drive
NOTE: For the full name of an abbreviation or acronym used in this table, see the abbreviation and acronym list that precedes the
Index.
S
ystem Beep Codes
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.
Table 2-1. System Messages (continued)
Cause
At system start-up, the BIOS has
detected that one or both of the
thermal probes in the computer are
nonoperational.
At system start-up, the BIOS has
detected that one or both microproces-
sors are overheated. After displaying
this message, the BIOS halts the pro-
cesses and turns off the system.
The operating system cannot write to
the diskette or hard-disk drive.
Action
You can continue to use the system, but be aware
that the temperature probe(s) are disabled and a
processor overheat condition will not warn the
Thermal Shutdown service to shut down the
system.
NOTE: The Pentium
built-in thermocouple that halts microprocessor
operation if the microprocessor exceeds its rated
temperature.
To correct this problem, you must replace your
system board. For technical assistance, see
Chapter 7, "Getting Help."
Let the system cool down before attempting to
restart it.
See "Troubleshooting the Diskette/Tape Drive
Subsystem" in Chapter 6.
When a beep code is emitted, write it down on a copy of
the Diagnostics Checklist found in Chapter 7, "Getting
Help," and then look it up in Table 2-2. 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 prob-
lem, see Chapter 7, "Getting Help," for instructions on
obtaining technical assistance.
®
Pro microprocessor has a
Messages and Codes 2-9