Upgraded CPU but the case LED did not change due to LED must be set manually.
Cause:
The case LED display must be set manually to match CPU speed.
Solution:
Turn off the computer, disconnect power cords, remove the computer cover, and change the LED display jumpers to match CPU speed.
NOTE: Refer to the computer manual for the correct LED jumper settings.
WARNING: Electrical shock hazard! Make sure the power is turned off and the external power cables have been disconnected before removing the computer cover.
CAUTION 1: This task should be performed by a qualified computer technician.
CAUTION 2: Please observe steps to reduce the potential damage to computer components from electrostatic discharge.
1) Disconnect the power cords, and remove the computer cover.
2) Locate the jumpers for the LED display.
NOTE: LED display jumpers should be located inside the computer adjacent to the face plate.
3) Set the jumpers to match the CPU speed.
NOTE: Refer to the computer manual for the correct LED jumper settings.
4) Replace the computer cover.
5) Reconnect the power cords, and turn the power on the computer and all its components.