9. Take the other end of the signal cable that is attached to the drive backplanesection for drive bays 0 through 3 (as labeled on the front of the drive cage)and connect it to the connector that is closest to the battery on theServeRAID-MR10i SAS/SATA controller. If drives are installed in drive bays 4through 7 (as labeled on the front of the drive cage), take the other end of thesignal cable that is attached to drive backplane section for drive bays 4through 7 and connect it to the connector that is farthest from the battery onthe ServeRAID-MR10i SAS/SATA controller.10. Replace the hard disk drive fan assembly:a. Insert the hard disk drive fan assembly retaining tab over the right edge ofthe hard disk drive backplane; then, rotate the hard disk drive fan assemblytoward the backplane. Do not fully close the hard disk drive fan assembly.b. Route the signal cables and power cable through the slot on the edge ofthe hard disk drive fan assembly. Make sure that the cables will not bepinched between the hard disk drive fan assembly and the hard disk drivebackplane when the assembly is installed.c. Rotate the hard disk drive fan assembly toward the backplane until therelease tabs are fully engaged and snap into place.11. Reconnect the hard disk drive fan assembly cable to the system board.12. Rotate the drive cage back into the server until it stops; then, press and holdthe retaining tab on top of the drive cage while you rotate the drive cage intothe chassis until it is in the closed position.13. Reinstall the hard disk drives.Note: Before you continue, check all internal power cables to make sure thatthey are connected to the system board and other optional devices.14. Install the side cover (see “Reinstalling the side cover” on page 54).15. Lock the side cover.16. Reconnect the external cables and power cords; then, turn on the attacheddevices and turn on the server.Installing an optional mini-PCI-X enablement cardTo install an optional mini-PCI-X enablement card, complete the following steps:1. Read the safety information that begins on page v and “Installation guidelines”on page 20.2. Turn off the server and all attached devices; then, disconnect all power cordsand external cables.3. Unlock and remove the side cover (see “Removing the side cover” on page 24).4. Touch the static-protective package that contains the mini-PCI-X enablementcard to any unpainted surface on the outside of the server; then, removemini-PCI-X enablement card from the package.5. Position the mini-PCI-X enablement card over the mini-PCI slot connector andthe plastic standoff. Press the mini-PCI-X enablement card firmly into themini-PCI slot connector and into the mini-PCI-X enablement card connector, andthen onto the plastic standoff.46 System x3200 M2 Types 4367 and 4368: User’s Guide