Dell 2500 manual System Messages, Indicator Indicator Code, Message Cause Corrective Action

Table 2-2. Power Supply Indicator Patterns

Indicator	Indicator Code
Power-on	Green indicator indicates that the power supply is operational.
Fault	Red indicator indicates a problem with the power supply i.e., fan failure, voltage error, etc.
AC present	Green indicator indicates that AC power is present at the power supply and that the system is connected to an AC source.

System Messages

System messages alert you to a possible operating system problem or to a conflict between the software and hardware. Table 2-3 lists the system error messages that can occur and the probable cause for each message.

NOTE: If you receive a system message that is not listed in Table 2-3, check the documentation for the application that is running when the message appears and/or the operating system documentation for an explanation of the message and recommended action.

Table 2-3. System Messages

Message	Cause	Corrective Action
Address mark not found	Faulty diskette/CD-ROM subsystem	Replace the system board. See "Getting Help," for instructions on
	or hard-disk drive subsystem	obtaining technical assistance.
	(defective system board)
Alert! Maximum memory size	System supports up to 4 GB of	Remove a memory module pair so that the maximum amount of
exceeded. Limiting memory size	memory	memory is 4 GB or less. See "Removing Memory Modules" in
to 4 GB		"Installing System Board Options."
Alert! Single-bit memory error	Improperly seated or faulty memory	Remove and reseat the memory modules. See "Removing Memory
previously detected in xxxx	modules	Modules" in "Installing System Board Options." If the problem
xxxxh		persists, replace the memory modules. See "Removing Memory
		Modules" in "Installing System Board Options." If the problem still
		persists, see "Getting Help," for instructions on obtaining technical
		assistance.
Alert! Previous processor	The microprocessor exceeded its	Remove and Replace the defective microprocessor. See "Adding or
thermal failure.	recommended operating temperature	Replacing a Microprocessor" in "Installing System Board Options."
	during the previous operating session.
Alert! Primary processor is out	System detected that the primary	Replace the microprocessor. See "Adding or Replacing a
of rev.	processor is not the correct revision.	Microprocessor" in "Installing System Board Options."
Alert! Processor thermal probe	Faulty processor or defective system	Replace the defective microprocessor. See "Adding or Replacing a
failure detected.	board.	Microprocessor" in "Installing System Board Options." If the
		problem persists, the system is defective. See "Getting Help," for
		instructions on obtaining technical assistance.
Alert! Secondary processor is	System detected that the secondary	Replace the microprocessor with a type supported by Dell. See
out of rev.	processor is not the correct revision.	"Adding or Replacing a Microprocessor" in "Installing System
		Board Options."
Alert! Unsupported memory in	Unsupported memory module(s)	Replace one or more memory modules so that the memory module
DIMM slot(s)	installed in specified slot(s)	pairs are the same type. See "Removing Memory Modules" in
		"Installing System Board Options."
Alert! Uncorrectable memory	Improperly seated or faulty memory	Remove and reseat the memory modules. See "Adding or Replacing
error previously detected in	modules	a Microprocessor" in "Installing System Board Options." If the
xxxx xxxxh		problem persists, replace the memory modules. See "Adding or
		Replacing a Microprocessor" in "Installing System Board Options."
		If the problem still persists, see "Getting Help," for instructions on
		obtaining technical assistance.
Attachment failed to respond	Diskette drive or hard-disk drive	Replace the defective drive. See "Installing a Device That Uses the
	controller cannot send data to	System's Integrated SCSI Controller" in "Installing Drives." If the
	associated drive	problem still persists, see "Getting Help," for instructions on
		obtaining technical assistance.
Auxiliary device failure	Mouse cable connector loose or	Check the mouse cable connection. "External Connections" in
	improperly connected, defective	"Troubleshooting Your System." If the problem persists, replace the
	mouse	mouse. See "Getting Help," for instructions on obtaining technical