Maintenance and Service Guide

NOTE: The computer will attempt to notify you of this problem through a series of blinking lights. When you
attempt to turn on the computer from an “O” or “Hibernated” state, lights associated with the caps lock and
num lock keys will both blink three times followed by a pause, then continue in a repeating pattern.
Graphics Controller Error (No Controller)
This computer has experienced a graphics controller initialization problem resulting in a failed startup. This
issue may be related to the graphics controller in your machine. This problem may be resolved by ensuring
that the graphics controller module is seated correctly in machines with modular graphics. If this error
reoccurs, a service event must be used to identify the source of the error and take the appropriate corrective
action.
NOTE: The computer will attempt to notify you of this problem through a series of blinking lights. When you
attempt to turn on the computer from an “O” or “Hibernated” state, lights associated with the caps lock and
num lock keys will both blink four times followed by a pause, then continue in a repeating pattern.
Failure - System Board Error
This computer has experienced a system board initialization problem resulting in a failed startup. This issue
may be related to the system board in the computer. A service event must be used to identify the source of
the error and take the appropriate corrective action.
NOTE: The computer will attempt to notify you of this problem through a series of blinking lights. When you
attempt to turn on the computer from an “O” or “Hibernated” state, lights associated with the caps lock and
num lock keys will both blink ve times followed by a pause, then continue in a repeating pattern.
Intel Trusted Execution Technology (TXT) Error
This computer has experienced a problem related to the Intel Trusted Execution Technology resulting in a
failed startup. The error occurs when all of the following are true:
● The Intel Trusted Execution Technology (TXT) has been enabled on the computer.
● Policies have been set to prevent startup if the BIOS measurement has changed.
● The BIOS measurement has changed.
For more information about Intel TXT, go to http://www.intel.com/content/dam/www/public/us/en/
documents/white-papers/trusted-execution-technology-security-paper.pdf.
A service event must be used to resolve this issue.
NOTE: The computer will attempt to notify you of this problem through a series of blinking lights. When you
attempt to turn on the computer from an “O” or “Hibernated” state, lights associated with the caps lock and
num lock keys will both blink six times followed by a pause, then continue in a repeating pattern.
Sure Start unable to nd valid BIOS Boot Block image
This computer has experienced a problem in locating a valid BIOS image, resulting in a failed startup. A service
event must be used to identify the source of the error and take appropriate corrective action.
NOTE: The computer will attempt to notify you of this problem through a series of blinking lights. When you
attempt to turn on the computer from an “O” or “Hibernated” state, lights associated with the caps lock and
num lock keys will both blink seven times followed by a pause, then continue in a repeating pattern.
Additional information 137