Hardware Owner's Manual
Page 102
... until it to the electrical outlet. 12 Turn on the system board. To boot from the electrical outlet and peripherals. 2 Open the system. NOTE: Maximum dimensions supported for the connector location. 7 Install the cooling shroud. 2 Open the system. See "Removing the Expansion Card Stabilizer." 4 Remove the cooling shroud.
... until it to the electrical outlet. 12 Turn on the system board. To boot from the electrical outlet and peripherals. 2 Open the system. NOTE: Maximum dimensions supported for the connector location. 7 Install the cooling shroud. 2 Open the system. See "Removing the Expansion Card Stabilizer." 4 Remove the cooling shroud.