Cisco UCS B420 M3 Installation And Service Note page 29

Procedure
Step 1 Position the adapter board connector above the motherboard connector and align the two adapter captive screws to the
standoff posts (see callout 1) on the motherboard.
Step 2 Firmly press the adapter connector into the motherboard connector (see callout 2).
Step 3
Tighten the two captive screws (see callout 3).
Tip Removing an adapter card is the reverse of installing it. You might find it helpful when removing the connector
from the motherboard to gently rock the board along the length of the connector until it loosens.
Figure 21: Installing an Adapter Card
Installing the Flash-Backed Write Cache and Supercap
The Flash-backed Write Cache (FBWC) is an intelligent backup solution that protects disk write cache data during a long term power
loss on the RAID controller. It has two components, the TFM memory and the Supercap module, which provides emergency power.
The TFM installs into a dedicated slot, but the installation steps are identical to installing a DIMM. The flash-backed write cache
feature and its components are not supported at the initial server release.
Verify whether replacement is required by using the show raid-battery detail command in the CLI.
To install the Supercap module, follow these steps:
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