POST Error Codes:

A POST error code can occur in three ways:
1. Under the System Memory count at the upper-left corner of the screen.
2. After one or more beeps, followed by an error code and/or explanatory
message.
3. As a sequence of beeps with no other messages or error codes
displayed.
Note: It might take a minute or more for the system to respond with
error messages or beeps.
If error codes occur for:
Disk Drives
I/O Devices
Plug and Play Devices
Go first to the Setup Utility to assure devices are installed.
If you have an XX62 error with no other error codes, run the Setup Utility
(see “Using the Setup Utility” on page 1-18) and note any flagged options.
Note the XX62 error or flagged option and try to add it from the
Configuration/Setup Utility screen. If the option cannot be added, go to
“Index of Symptoms, Messages, Error Codes, or Beeps” on page 2-9 for
additional help.
If you want to print a copy of a Setup Utility screen on an attached printer,
press Print Screen while the screen is displayed.

How to Use Error Messages:

Use the messages, error codes, and beep
combinations that occur to diagnose failures. If more than one failure
occurs, diagnose the first failure first. The cause of the first failure can result
in false messages, error codes, or beeps. If you did not receive any
messages, error codes, or beeps, see if the symptom is listed in “Index of
Symptoms, Messages, Error Codes, or Beeps” on page 2-9.
001
To begin this check, note the following:
– To disable or reset the power-on password, see “Power-On Password,
CMOS Reset” on page 1-14.
– Disconnect all external cables and devices including speakers and
microphone from the system unit, except for the keyboard, mouse, and
monitor.
(Step 001 continues)
Check Procedures 2-3