Oracle SPARC T7-2 Service Manual page 149

You will reinstall the eUSB drive on the new motherboard. See
Drive" on page 121.
7. Remove all memory risers.
See "Remove a DIMM" on page
8. Remove the System Remind button assembly (air divider) by lifting it up and
away from the power supplies.
9. Disconnect all cables connected to the motherboard.
a. Disconnect two longer cables that connect the motherboard to the drive
backplane.
Push down a metal tab on each connector and pull up.
b. Disconnect two shorter cables from the motherboard.
One cable goes to the drive backplane. The other is a ribbon cable to the power supply.
c. Disconnect the fan board power cable and the ribbon cable from the
motherboard.
When removing the ribbon cable from the motherboard, grasp the cable connector on
Caution -
either side and pull straight up to disconnect the cable. Do not rock the cable side to side. Doing
so could damage the connector.
d. If necessary, disconnect the four NVMe drive cables from the drive
backplane.
Note the order in which the cables are connected, you must reinstall them into the same
connectors.
10. Remove the power supply cover.
You must guide two slots on the PS backplane cover around two pins on the inside of the power
supply cage.
a. Lift the cover up a little to clear the first part of the slots.
b. Pull the cover a little towards the front of the chassis.
c. Push the tooth at the bottom of the cover to clear the edge of the power
supply cage.
102.
Remove the Motherboard
"Remove the eUSB
Servicing the Motherboard 149