Dell PowerEdge 1750 Installation And Troubleshooting Manual page 24

System messages alert you to a possible operating system problem or to a conflict between the software and hardware.
messages that can occur and the probable cause for each message.
NOTE: If you receive a system message that is not listed in Table 2-5, check the documentation for the application that is running when the message
appears or the operating system's documentation for an explanation of the message and recommended action.
Table 2-5. System Messages
Message
Address mark not found
Amount of available memory limited to 256 MB! OS Install Mode is enabled in the
Alert! One or more of the memory DIMMs are
out of rev.
Alert! Redundant memory disabled! Memory
configuration does not support redundant
memory.
Alert! Unsupported memory, incomplete sets,
or unmatched sets.
The following memory DIMM(s) have been
disabled: DIMM_xx
Auxiliary device failure
Attachment failed to respond.
Bad error-correction code (ECC) on disk read.
Controller has failed.
BIOS Update Attempt Failed!
Caution! NVRAM_CLR jumper is installed on
system board - please run SETUP program.
CPUs with different cache sizes detected.
Data error
Decreasing available memory
Diskette drive 0 seek failure
Diskette drive 1 seek failure
Diskette read failure
Diskette subsystem reset failed
Diskette write protected
Drive not ready
ECC memory error
Embedded server management error
Embedded server management is not present
Error: Dell Remote Access Controller
Causes
Faulty diskette/CD drive subsystem or
hard-drive subsystem (defective system
board).
System Setup program.
One or more of the installed DIMMs are
not supported by the system. DIMMs
must be registered DDR SDRAM rated for
266-MHz operation.
One memory bank is not populated, or
memory banks are different sizes. To
support redundant memory, both banks
must be populated, and all four DIMMs
must be the same size.
DIMMs are installed in a mismatched
pair, or one memory slot in a bank is
empty. Memory must be installed in
matched pairs. In a mismatched memory
bank, neither DIMM is used.
Mouse or keyboard cable connector
loose or improperly connected; defective
mouse or keyboard.
Diskette drive or hard-drive controller
cannot send data to associated drive.
Faulty diskette drive, tape drive, or
hard-drive subsystem (defective
backplane board).
Remote BIOS update attempt failed.
Incorrect configuration settings in
System Setup program, NVRAM_CLR
jumper is installed, or faulty system
battery.
Two different types of microprocessors
are installed.
Faulty diskette, diskette drive, or hard
drive.
One or more memory modules
improperly seated or faulty.
Faulty or improperly inserted diskette or
incorrect configuration settings in
System Setup program.
Faulty diskette, or faulty or improperly
connected diskette drive.
Faulty diskette/CD drive controller
(defective system board).
Diskette write-protect feature is
enabled.
Diskette missing from or improperly
inserted into the diskette drive.
Improperly seated or faulty memory
modules.
Embedded server management memory
may be temporarily corrupted.
Defective RAC or system board.
Table 2-5
Corrective Actions
See "Getting Help."
Disable the OS Install Mode in the System Setup program.
See "Using the System Setup program" in the User's Guide.
Ensure that all installed memory meets the system
specifications. See "Installing Memory
System Options."
Install identical DIMMs in all four memory banks. See
"Installing Memory Modules" in "Installing System Options."
Ensure that memory is installed in matched pairs. See
"Installing Memory Modules" in "Installing System Options."
Check the mouse and keyboard cable connections. See
"Troubleshooting External Connections" in "Troubleshooting
Your System." If the problem persists, replace the mouse. If
the problem persists, replace the keyboard. See
Help."
Reboot the system. If you receive an error message from the
SCSI, RAID, or diskette controller, see
If no error message appears at system boot, reseat all
drives. If the problem persists, see
Reseat all drives and reboot the system. If the error message
reappears, see "Getting Help."
Retry the BIOS update. If the problem persists, see
Help."
Check the System Setup configuration settings. See "Using
the System Setup Program" in the User's Guide. Remove the
NVRAM_CLR jumper. See Figure A-2
Replace the battery. See "Replacing the System
"Installing System Options."
Install a correct version of the microprocessor so that both
microprocessors have the same level 2 cache size. See
"Installing Microprocessors" in "Installing System Options."
Replace the diskette. Reseat all drives and reboot the
system. If the error message reappears, see
Remove and reseat the memory modules. See
Memory Modules" in "Installing System Options." If the
problem persists, replace the memory modules. If the problem
persists, see "Getting Help."
Reseat the diskette drive and replace the diskette. See
"Installing a Diskette Drive" in "Installing Drives." Run the
System Setup program to correct the diskette drive type. See
"Using the System Setup Program" in the User's Guide.
Reseat the diskette drive and replace the diskette. See
"Installing a Diskette Drive" in "Installing Drives."
Replace the system board. See "Getting
Disable the write-protect feature on the diskette.
Reinsert the diskette into the drive.
Remove and reseat the memory modules. See
Memory Modules" in "Installing System Options." If the
problem persists, replace the memory modules. If the problem
persists, see "Getting Help."
To clear the embedded server management memory, shut
down the system, disconnect the power cord(s), wait
approximately 30 seconds, and then reconnect the power
cord(s) and restart the system. If the problem persists, see
"Getting Help."
Replace the RAC. See the documentation that came with the
lists the system error
Modules" in "Installing
"Getting
"Getting Help."
"Getting Help."
"Getting
for jumper location.
Battery" in
"Getting Help."
"Installing
Help."
"Installing