Illustrations follow:

The cpu in its socket without the metal cpu holddown

The metal cpu holddown setting on top of the cpu (not installed, just loose)

The metal cpu holddown halfway installed

The metal cpu holddown halfway installed

The metal cpu holddown locked into the cpu socket, but not locked over the cpu yet

The metal cpu bracket on top of the cpu and locked into the cpu socket, but with the lever still open

The metal cpu bracket on top of the cpu and locked into the cpu socket, with the lever halfway closed

CPU installed correctly, but with no thermal paste

CPU installed correctly, but with no thermal paste - different angle

How the pegs on the bracket should be turned

How the bracket fits on the heatsink

Heatsink with the bracket setting in place but not yet locked in

The heatsink mounted correctly