IBM X3950 X5 Problem Determination And Service Manual page 211

4. Remove the system-board tray (see "Removing the memory expansion module
system-board tray assembly" on page 197).
5. Remove the fans (see "Removing a memory expansion module hot-swap fan"
on page 183).
6. From the inside of the system-board tray, remove the fan cable connectors
from the system-board tray, starting with the connector that is farthest from
the operator information panel.
7. Disconnect the five-drop fan cable from the system-board.
8. Grasp the tab on the cable connector on the rear of the fan and push the
connector to the right to release the fan connector from the system-board tray;
then, remove the cable for that fan from the clamp. Repeat this for each fan
connector until you have removed all five fan connectors from the fan
connectors in the fan cage.
9. Lift the five-drop fan cable from the system-board tray.
10. If you are instructed to return the fan cable, follow all packaging instructions,
and use any packaging materials for shipping that are supplied to you.
Chapter 5. Removing and replacing components
195