Post Error Codes - Lenovo ThinkStation 4353 Hardware Maintenance Manual

The following tables describes beep symptoms.
Beep Symptom
2 short beeps CMOS setting error
1 long and 2 short beeps Monitor or video adapter card
error
1 long and 3 short beeps Keyboard error
1 long and 9 short beeps BIOS ROM error
1-3-3-1 short beeps DRAM memory error

POST error codes

Each time you Turn on the system, it performs a series of tests that check the operation of the system and
some options. This series of tests is called the Power-On Self-Test, or POST. POST does the following
operations.
• Checks some basic system-board operations
• Checks the memory operation
• Starts the video operation
• Verifies that the boot drive is working
If the POST detects a problem, an error message appears on the screen. A single problem can cause several
error messages to appear. When you correct the cause of the first error message, the other error messages
probably will not appear on the screen the next time you turn on the system.
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ThinkStation Hardware Maintenance Manual
FRU/Action
Perform the following actions in order.
1. Start the Setup Utility program and press F10 to save
and exit. See Chapter 6 "Using the Setup Utility
program" on page 55.
2. Start the Setup Utility program and press F9 to load
defaults and then press F10 to save and exit.
3. Perform a Boot block recovery. See "Recovering
from a POST/BIOS update failure" on page 129.
Perform the following actions in order.
1. Make sure the monitor is properly connected to the
computer.
2. Replace the video adapter card (if present).
3. Replace the system board.
Perform the following actions in order.
1. Make sure the keyboard is properly connected to the
keyboard connector.
2. Replace the keyboard.
3. Replace the system board.
Perform the following actions in order.
1. Start the Setup Utility program and press F9 to load
defaults and then press F10 to Save and exit. See
Chapter 6 "Using the Setup Utility program" on page
55.
2. Perform a Boot block recovery. See "Recovering
from a POST/BIOS update failure" on page 129.
3. Replace the system board.
Perform the following actions in order.
1. Make sure the memory module(s) are properly seated
in the connector(s).
2. Replace the memory module(s).
3. Replace the system board.