Skip to main content

Install a 2.5-inch drive backplane

Follow instruction in this section to install a 2.5-inch drive backplane.

About this task

  • Read Installation Guidelines and Safety inspection checklist to ensure that you work safely.

  • Power off the server and peripheral devices and disconnect the power cords and all external cables. See Power off the server.

  • Prevent exposure to static electricity, which might lead to system halt and loss of data, by keeping static-sensitive components in their static-protective packages until installation, and handling these devices with an electrostatic-discharge wrist strap or other grounding system.

  • If the server is installed in a rack, slide the server out on its rack slide rails to gain access to the top covers, or remove the server from the rack. See Remove the server from rails.

The server supports up to six drive backplanes with the following corresponding drive bay numbers.
Figure 1. Drive backplane numbering
Drive backplane numbering
When ThinkSystem 256GB TruDDR5 4800MHz (8Rx4) 3DS RDIMM v1 is installed in the system, the maximum number of supported drives is twenty-four drives.
Table 1. Drive backplanes and corresponding drive bays
Drive backplaneDrive bay Supported drive backplanesSupported drives
1 Backplane 10 to 7
  • 2.5-inch AnyBay 8-bay drive backplane
  • 2.5-inch SAS/SATA 8-bay drive backplane
  • 2.5-inch SAS/SATA/NVMe drives
  • 2.5-inch SAS/SATA drives
2 Backplane 28 to 15
3 Backplane 316 to 23
4 Backplane 424 to 31
  • 2.5-inch AnyBay 8-bay drive backplane
  • 2.5-inch SAS/SATA 8-bay drive backplane
  • 2.5-inch SAS/SATA drives
5 Backplane 532 to 39
6 Backplane 640 to 47
2.5-inch AnyBay 8-bay drive backplanes support 2.5-inch SAS/SATA/NVMe drives.
Table 2. Drive backplanes installation order
Installation priorityBackplane typeBackplane placement priorities
12.5-inch AnyBay 8-bay drive backplane1, 3, 2, 4, 5, 6
22.5-inch SAS/SATA 8-bay drive backplane1, 2, 3, 4, 5, 6

Firmware and driver download: You might need to update the firmware or driver after replacing a component.


  1. If necessary, remove the two screws from the backplane carrier.
    Figure 2. Spare screws on backplane carrier
    Spare screws on backplane carrier
  2. Install backplane to carrier and secure with two screws.
    Figure 3. Installing backplane to carrier
    Installing backplane to carrier

After you finish

  1. Reinstall the drive backplane carrier. See Install the drive backplane carrier assembly.

  2. Connect the power and signal cables to all the backplanes. See 2.5-inch drive backplane cable routing for more information on the internal cable routing.

  3. Reinstall all the 2.5-inch hot-swap drive and drive fillers. See Install a 2.5-inch hot-swap drive.

  4. Reinstall the fan cage. See Install the fan cage.

  5. Reinstall all fan modules. See Install a fan module.

  6. Reinstall the front air baffle. See Install the front air baffle.

  7. Reinstall the front top cover. See Install the front top cover.

  8. Complete the parts replacement. See Complete the parts replacement.

  9. If you have installed 2.5-inch drive backplane with U.3 NVMe drives for Trimode. Enable U.3 x1 mode for the selected drive slots on the backplane through the XCC web GUI. See U.3 NVMe drive can be detected in NVMe connection, but cannot be detected in Tri-mode.

Demo video

Watch the procedure on YouTube