System messages

Address mark not found

Faulty diskette or tape drive subsystem or hard disk drive subsystem.

Yes

Replace the system board.

Alert! Maximum memory size exceeded. Limiting memory size to 2 GB

The system supports up to 2 GB of memory.

Yes

Remove one or more DIMMs so total memory is 2 GB or less.

Alert! Uncorrectable memory error previously detected in ASCII_value

Improperly seated or faulty DIMM.

Yes

Remove and reseat the DIMMs. If the problem persists, replace the DIMMs.

Alert! Unsupported memory in DIMM slot(s) decimal_value

Unsupported DIMMs installed.

Yes

Replace one or more DIMMs so that all DIMMs are of the same type.

Alert! Single-bit memory error previously detected in ASCII_value

Improperly seated or faulty DIMM.

Yes

Remove and reseat the DIMMs. If the problem persists, replace the DIMMs.

Amount of memory has changed

Missing or faulty DIMMs.

Yes

Check the DIMMs. If all are there, remove and reseat the DIMMs. If the problem persists, replace the DIMMs.

Attachment failed to respond

Diskette or hard disk drive controller cannot send data to associated drive.

Yes

Replace the drive's interface cable.

Auxiliary device failure

Mouse plugged into the unsupported mouse port.

No

Remove any attached mice. If the problem persists, replace the system board.

CPUs with different level 2 cache sizes detected

Two different types of microprocessors are installed.

Yes

Remove one of the processors. This configuration is not supported.

Data error

Faulty diskette or diskette drive or hard disk drive.

No

Replace the diskette or diskette drive or hard disk drive.

Decreasing available memory

One or more DIMMs is improperly seated or faulty.

Yes

Remove and reseat the DIMMs. If the problem persists, replace the DIMMs.

Diskette drive failure 0 seek failure

Diskette drive 1 seek failure

Faulty or improperly inserted diskette, loose diskette or tape drive interface cable, or loose power cable.

Yes

1. Replace the diskette.
2. Check the drive interface and power cables.
3. Run the system setup program to correct the diskette drive type.

Diskette read failure

Faulty diskette, faulty or improperly connected diskette or tape drive interface cable, or loose power cable.

No

1. Replace the diskette.
2. Run the system setup program to correct the diskette drive type.
3. Check the drive interface and power cables.

Diskette subsystem reset failed

Faulty diskette/tape drive controller; defective system board.

Yes

Replace the system board.

Gate A20 failure

Faulty keyboard controller; defective system board.

Yes

Replace the system board.

Hard disk controller failure

Incorrect configuration settings in System Setup program, improperly connected hard disk drive, faulty hard disk drive controller subsystem, defective system board, or loose power cable.

Yes

1. Reinstall the hard drive.
2. Check the interface cable and power cable connections to the backplane.
3. Check the hard disk drive configuration settings in the system setup program.
4. Replace the hard disk controller subsystem.

Invalid configuration information - please run SETUP program

Incorrect ISA-CLR jumper configuration, incorrect configuration settings in the System Setup program, or faulty battery.

No

1. Check the system setup configuration settings.
2. Replace the CMOS lithium battery.

Invalid CPU speed detected

Microprocessor not supported by the system.

Yes

Install the correct version of the microprocessor in the specified connector.

I/O parity interrupt at address

Expansion card improperly installed or faulty.

Yes

Reinstall the expansion card. If the problem persists, replace the system board.

Keyboard controller failure

Defective keyboard or mouse controller; defective system board.

No

Remove the keyboard or mouse; they are not supported. If the problem persists, replace the system board.

Keyboard failure

Keyboard cable connector loose or improperly connected, defective keyboard, or defective keyboard or mouse controller; defective system board.

No

Remove the keyboard or mouse; they are not supported. If the problem persists, replace the system board.

Keyboard data line failure

Keyboard stuck key failure

Keyboard cable connector loose or improperly connected, defective keyboard, or defective keyboard or mouse controller; defective system board.

No

Remove the keyboard or mouse. If the problem persists, replace the system board.

Memory address line failure at Hex_value, read Hex_value expecting Hex_value

Memory double word logic failure at Hex_value, read Hex_value expecting Hex_value

Memory odd/even logic failure at Hex_value, read Hex_value expecting Hex_value

Memory write/read failure at Hex_value, read Hex_value expecting Hex_value

Faulty or improperly seated DIMMs or defective system board

Yes

Remove and reseat the DIMMs. If the problem persists, replace the DIMMs. If the problem still persists, replace the system board.

Memory parity interrupt at Hex_value

Improperly seated or faulty DIMMs

Yes

Remove and reseat the DIMMs. If the problem persists, replace the DIMMs.

Memory tests terminated by keystroke

POST memory test terminated by pressing the spacebar

No

Do not terminate the POST test.

No boot device available

Faulty diskette, diskette/tape drive subsystem, hard disk drive, hard disk drive subsystem, or no boot disk in drive A.

Yes

1. If booting from a diskette, ensure that the diskette is bootable.
2. If booting from a hard disk drive, replace the hard disk drive.
3. Check cabling.
4. Check the SCSI adapter and terminators.
5. If the problem persists, replace the SCSI adapter or the system board.

No timer tick interrupt

Defective system board.

Yes

Replace the system board.

Non-system disk or disk error

Faulty diskette, diskette/tape drive subsystem, or hard disk drive subsystem.

Yes

1. Ensure that the diskette is bootable.
2. Check cabling.
3. Check the SCSI adapter.
4. If the problem persists, replace the SCSI adapter or the system board.

Not a boot diskette

No operating system on the diskette.

No

Use a bootable disk.

Processor or terminator card not installed

No microprocessor or terminator card installed in secondary microprocessor connector.

Yes

Install a terminator card or microprocessor in the secondary microprocessor connector.

Read fault

Requested sector not found

Faulty diskette, diskette or tape drive subsystem, or hard disk drive subsystem; defective system board.

Yes

Replace the diskette or hard disk drive. If the problem persists, replace the system board.

Reset failed

Improperly connected diskette/tape drive, hard disk drive, or power cable.

No

1. Check the diskette/tape drive interface cable and power cable connections to the diskette drive.
2. Replace the diskette/tape drive interface cable.
3. Reinstall the hard disk drive.
4. Check the interface cable and power cable connections to the backplane.

ROM bad checksum = address

Expansion card improperly installed or faulty.

Yes

Reinstall the expansion cards. If the problem persists, replace the expansion card.

Sector not found

Defective sectors on diskette or hard disk drive.

Yes

Replace the diskette or hard disk drive.

Seek error

Defective sectors on diskette or hard disk drive.

Yes

Replace the diskette or hard disk drive.

Seek operation failed

Faulty diskette or hard disk drive.

Yes

Replace the diskette or hard disk drive.

Shutdown failure

Defective system board.

Yes

Defective system board. Replace the system board.

Time-of-day clock stopped

Defective battery or faulty chip; defective system board.

Yes

Replace the CMOS lithium battery. If the problem persists, replace the system board.

Time-of-day not set - please run SETUP program

Incorrect Time or Date settings or defective system battery.

No

Check the Time and Date settings. If the problem persists, replace the CMOS lithium battery. If the problem still persists, replace the system board.

Timer chip counter 2 failed

Defective system board.

Yes

Replace the system board.

Unexpected interrupt in protected mode

Improperly seated DIMMs or faulty keyboard/mouse controller chip; defective system board.

Yes

Remove and reseat the DIMMs. If the problem persists, replace the DIMMs. If the problem still persists, replace the system board.

Unsupported CPU detected in SLOT Decimal_value

Unsupported CPU speed detected!

Microprocessor not supported by system.

Yes

Install a correct version of the microprocessor in the specified microprocessor connector.

Unsupported CPU combination detected. System halted!

Not supported.

No

Not supported.

Unsupported CPU speed in CMOS

Microprocessor not supported by BIOS

Yes

Replace the microprocessor.

Utility partition not available

Not supported.

No

Not supported.

Backplane firmware out of date

The backplane firmware is not current.

No

1. Check the cabling to the backplane.
2. Use the Field Utilities. See the NOW Web page at http://now.netapp.com to update the firmware.
3. Replace the CMOS lithium battery if the problem persists.