Oracle X7-8 Service Manual page 231

Replace the Midplane Assembly
9. Reach into the side access opening and disconnect the five connectors from the
back of the midplane assembly.
Tip - To see the connectors, direct the light from a flashlight through the small opening in the
top access just above the cable connect points.
The following illustration shows the location and arrangement of the connectors on the back of
the midplane.
Servicing Components 231