Note: Depending on the specific type, your backplane might look different from the illustration in this topic.Step 1. Prepare your server.a. Remove the top cover. See “Remove the top cover” on page 220.b. Remove the system fan cage for easier operation. See “Remove a system fan” on page 209.c. Remove all the installed drives and fillers (if any) from the drive bays. See “Remove a 2.5/3.5-inch hot-swap drive” on page 124.Step 2. Remove the backplane from the chassis.Figure 38. 3.5-inch-drive backplane removala. Open the release latches that secure the backplane.b. Pivot the backplane backward slightly to release it from the three pins 1 on the chassis.c. Carefully remove the backplane out of the chassis.Step 3. Record the cable connections on the backplane and then disconnect all cables from thebackplane. See “2.5-inch/3.5-inch drive backplane (power)” on page 65 and “2.5-inch/3.5-inchdrive backplane (signal)” on page 66.After you finishIf you are instructed to return the old backplane, follow all packaging instructions and use any packagingmaterials that are provided.Install the front 3.5-inch drive backplaneUse this information to install the front 3.5-inch drive backplane.About this taskAttention:• Read “Installation guidelines” on page 83 to ensure that you work safely.Chapter 4. Hardware replacement procedures 97