Compaq DESKPRO 2000 SERIES Maintenance & Service Manual page 171

5. Remove the LED end of the cable from the front of the chassis by gently pulling on the
cable while at the same time pushing the end of the LED from the front of the chassis.
Figure 5-54. Removing the LED Cable From the Front of the Chassis
To install the LED cable, reverse the above steps.
5-58 Removal and Replacement Procedures