Oracle X7-8 Service Manual page 235

8. Loosen the 19 captive screws on the top access panel and remove the panel.
9. Carefully remove and retain the protective black plastic insert that covers the top
of the midplane assembly.
Note the orientation of the insert with respect to the opening. The insert is fitted to the opening
using tabs and flaps.
Remove the Midplane Assembly
Servicing Components 235