11. If applicable, install the front bezel.Removing The I/O PanelCAUTION: Many repairs may only be done by a certified service technician. You should only performtroubleshooting and simple repairs as authorized in your product documentation, or as directed by the online ortelephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by yourwarranty. Read and follow the safety instructions that came with the product.1. If installed, remove the front bezel.2. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet andperipherals.3. Open the system.CAUTION: To prevent damage to the I/O cable, you must release the locking tab before removing or installingthe I/O cable from the connector on the hard-drive backplane.4. Rotate the locking tab on the I/O cable connector clockwise 90 degrees to release the lock.5. Disconnect the I/O cable from the backplane.6. Remove the three Torx screws securing the I/O panel to the chassis.7. Pull out the I/O panel cable through the channel on the chassis.Figure 47. Removing and Installing the I/O Panel1. I/O panel cable2. hard-drive backplane3. Torx screws (3)4. I/O panel5. chassis80
