4. Insert the tray into the hot-swap cage and then close the lever as
shown below.
Installing a System Board
The housing accommodates various system board sizes. You can
rearrange the pegs on the system board plate to fit the board that you
wish to install.
System Board
Align the system board holes to the pegs with the external ports facing
the rear of the housing. Secure the board with eight screws.
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Altos 500 System Guide