IBM F50 RS/6000 7025 - Manual (Page 182)

6. If you are upgrading a CPU card, remove the installed CPU card:
a. Remove the power cable from the CPU card by squeezing the tabs.
b. The card is secured in place with card retainer hooks, one on each end of
the card. Open the card retainer hooks and remove the card.
Attention: To prevent damage to the card and the card connectors, open
and close the retainer hooks at the same time.
c. Place the new CPU card in the card guide rails.
d. Make sure that the black tabs on the new card are captured by the retainer
hooks.
e. Align the card with the connectors.
f. Close the retainer hooks to set the card.
Attention: To prevent damage to the card and the card connectors, open
and close the retainer hooks at the same time.
g. Connect the power cable to the CPU card.
7. If you are adding a CPU card:
a. Remove the power cable from the existing CPU card by squeezing the tabs.
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