Oracle X7-8 Service Manual page 179

b. Lift the processor-heatsink module out of the packaging tray.
Align the processor-heatsink module to the processor socket bolster plate
c.
on the motherboard, matching the pin 1 location (a triangle indicator).
Callout
1
d. Place the processor-heatsink module on the socket on the motherboard.
Description
Pin 1 indicator
Install a Processor
Servicing Components 179