3-2
Dell OptiPlex Gs and Gs+ Systems Service Manual
Table 3-1. POST Beep Codes
Beep Code
Error
1-3
Monitor not detected
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 verifi-
cation failure
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
Bit failure in the first 64 KB
through
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 regis-
ter failure
3-1-4
Slave interrupt-mask register
failure
3-2-4
Keyboard-controller test
failure
Probable Causes
Disconnected or faulty
monitor
Defective system board
Faulty BIOS or defective
system board
Defective system board
Faulty or improperly seated
SIMM or defective system
board
Faulty or improperly seated
SIMM
Defective system board
Faulty keyboard controller
(defective system board)