Dell Precision 330 - Manual (Page 105)

Installing Upgrades 105
NOTE: Your microprocessor upgrade kit should include a replacement
microprocessor heat sink and two replacement securing clips.
NOTICE: Do not discard the original microprocessor heat sink or securing
clips unless you are installing a microprocessor upgrade kit from Dell. If you
are
not installing a microprocessor upgrade kit from Dell, reuse the original
heat sink and securing clips when replacing the microprocessor.
Re m o v i n g t h e M i c r o p r o c e s s o r H e a t S i n k
6 Remove the microprocessor from its connector.
securing clip
latch
heat sink
retention base
microprocessor
socket
securing clip
latch