4-4
Diagnostic Tools
POST Messages
Continued
Message
Beeps*
Probable Cause
Recommended Action
203-Memory Address
Error
None
RAM failure
1. Be sure memory module(s) are
installed properly.
2. Replace the DIMMS.
3. Replace the system board.
205-Memory Error
None
Cache memory error (Processor
cache)
Run the Setup and Diagnostics
utilities.
206-Secondary cache
controller failure
None
Cache memory controller or RAM
failure
Run the Setup and Diagnostics
utilities.
207-ECC Failure
2S
Single Bit ECC error
Replace DIMM if error persists.
210-Invalid Memory
Configuration Detected.
Maximum of 1 Gbyte of
Memory Supported. System
Halted.
None
Too much memory installed
Reduce memory installed by
removing DIMMs.
212-Failed Processor
1L
Processor has failed to initialize
Replace the processor and/or
the Processor Power Module.
213-Incompatible DIMM
Module
2S
A DIMM module in DIMM socket
identified in the error message is
missing critical SPD information
or is incompatible with the
chipset.
Replace the DIMM with a
module conforming to the SPD
standard.
301-Keyboard Error
None
Keyboard failure
Reconnect keyboard with
computer turned off.
301-Keyboard Error or
Test Fixture Installed
None
Keyboard failure
Replace the keyboard.
303-Keyboard Controller
Error
None
I/O board keyboard controller
1. Reconnect keyboard with
computer turned off.
2. Replace the system board.
304-Keyboard or System
Unit Error
None
Keyboard failure
1. Reconnect the keyboard with
computer turned on.
2. Replace the keyboard.
3. Replace the system board.
40X-Parallel Port X Address
Conflict
2S
Port address conflict.
Run Computer Setup or
Windows NT utilities.
402-Monochrome
Adapter Failure
1L, 2S
Monochrome display controller
Replace the monochrome
display controller.
404-Parallel Port Address
Conflict Detected
2S
Both external and internal ports
are assigned to parallel port X
Run Computer Setup or
Windows NT utilities.
501-Display Adapter Failure
1L, 2S
Video display controller
Replace the graphics controller.
*L = Long, S = Short
Continued
