IBM 436854u Service Guide - Page 105

Removing the SAS/SATA hard disk drive backplane This procedure applies only to hot-swap server models with a SAS/SATA hard disk drive backplane installed on the back of the hard disk drive cage. To remove the SAS/SATA hard disk drive backplane, complete the following steps: 1. Read the safety information that begins on page vii and "Installation guidelines" on page 47. 2. Turn off the server and all attached devices; then, disconnect all power cords and external cables. 3. Unlock and remove the side cover (see "Removing the side cover" on page 52). 4. Remove the lower bezel (see "Removing the lower bezel" on page 54). 5. Remove the hot-swap SAS/SATA hard disk drives installed in the hard disk drive cage (see "Removing a hot-swap hard disk drive" on page 67). 6. Remove the hard disk drive fan assembly from the hard disk drive cage (see "Removing the hard disk drive fan assembly" on page 81). 7. Disconnect the power and signal cables from the hard disk drive backplane. 8. Press and hold the drive cage release tab; then, rotate the drive cage out of the chassis until the retaining tab on top of the cage locks into place. 9. Remove the two screws that secure the SAS/SATA hard disk drive backplane to the drive cage. Retaining tab Retaining latch SAS backplane Locating pins Drive cage release tab 10. Tilt the top of the hard disk drive backplane away from the drive cage until it is clear of the locating pins. 11. Lift the SAS/SATA hard disk drive backplane out of the lower lip on the drive cage and set it aside. Chapter 4. Removing and replacing server components 87