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a.
Connect the power cable to the backplane. If this cable is connected to the storage interposer,
you might find it easier to disconnect it from the storage interposer and then reconnect it to the
storage interposer after the backplane is installed.
b.
Connect the data cables to the backplane. (SAS backplanes have only one data cable. NVMe
backplanes have two data cables.)
Step 2.
Install the hard disk drive backplane.
Note: Existing cables might need to be removed from their retaining clips or moved to the side to
install the backplane.
Figure 79. Hard disk drive backplane (lower) installation
Align the backplane with its location in the server; then, insert the backplane and push it down until
it is fully seated.
Step 3.
Repeat Step 1 on page 145 and Step 2 on page 146 for each hard disk drive backplane being
installed in the lower compute tray.
Step 4.
Route and connect the data cables. See "Cable routing for drives" on page 45.
• Route each SAS data cable to its connector on the RAID adapter; then, connect the SAS cable.
• Route each NVMe data cable to its connector on the compute system board; then, connect the
NVMe cable.
Step 5.
Make sure that all power cables are connected to the storage interposer.
Step 6.
Route any cables that were moved to access the backplanes and connectors.
After you install a hard disk drive backplane:
1. Install the storage interposer and connect all cables. See "Install a storage interposer (lower tray)" on
page 230.
2. Make sure that all of the cables are correctly routed after they have been connected.
3. Install the fan cage. See "Install a fan cage (lower tray)" on page 128.
4. Install the lower compute tray. See "Install a compute tray" on page 117.
User Guide for ThinkAgile VX7820 Appliance, ThinkAgile VX 4-Socket 4U Certified Node
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