Dell OptiPlex GX1p User Manual page 3

POST Beep Codes: Dell™ OptiPlex™ GX1p
If the monitor cannot display error messages during the POST, the system may emit a series of beeps that identifies the problem or that can help you identify a faulty
component or assembly. The following table lists the beep codes that may be generated during the POST. Most beep codes indicate a fatal error that prevents the
system from completing the boot routine until the indicated condition is corrected.
Beep Code Error
1-1-3 NVRAM write/read failure
1-1-4 BIOS checksum failure
1-2-1 Programmable interval-timer failure
1-2-2 DMA initialization failure
1-2-3 DMA page register write/read failure
1-3-1 Main-memory refresh verification failure
1-3-2 No memory installed
1-3-3 Chip or data line failure in the first 64 KB of
main memory
1-3-4 Odd/even logic failure in the first 64 KB of
main memory
1-4-1 Address line failure in the first 64 KB of main
memory
1-4-2 Parity failure in the first 64 KB of main
memory
2-1-1 through Bit failure in the first 64 KB of main memory
2-4-4
3-1-1 Slave DMA-register failure
3-1-2 Master DMA-register failure
3-1-3 Master interrupt-mask register failure
3-1-4 Slave interrupt-mask register failure
3-2-4 Keyboard-controller test failure
3-3-4 Screen initialization failure
3-4-1 Screen-retrace test failure
3-4-2 Search for video ROM failed
4-2-1 No timer tick
4-2-2 Shutdown failure
4-2-3 Gate A20 failure
4-2-4 Unexpected interrupt in protected mode
4-3-1 Memory failure above address 0FFFFh
4-3-3 Timer-chip counter 2 failure
4-3-4 Time-of-day clock stopped
4-4-1 Serial-port test failure
4-4-2 Parallel-port test failure
4-4-3 Math coprocessor failure
4-4-4 Cache test failure
Probable Causes
Defective system board
Faulty BIOS or defective system board
Defective system board
Defective system board
Defective system board
Faulty or improperly seated DIMM or defective system
board
No memory installed, or faulty or improperly seated DIMM
Faulty or improperly seated DIMM
Faulty or improperly seated DIMM
Faulty or improperly seated DIMM
Faulty or improperly seated DIMM or address line failure
in the first 64 KB of RAM (System riser cards may cause
this error. Remove the riser card and retest)
Faulty or improperly seated DIMM
Defective system board
Defective system board
Defective system board
Defective system board
Faulty keyboard controller (defective system board)
Faulty video subsystem (defective system board)
Faulty video subsystem (defective system board)
Faulty video subsystem (defective system board)
Defective system board
Defective system board
Defective system board
Defective system board
Faulty or improperly seated DIMM
Defective system board
Bad battery or defective system board
Faulty I/O chip (defective system board)
Faulty I/O chip (defective system board)
Faulty microprocessor chip or system board
Defective microprocessor or system board