IBM i 830 Repair Manual page 674

Remove and Replace Procedures
29. You are removing a Processor card assembly (M03 or M04) in a Model
Refer to "Models 830 and SB2 with FC 9074 - Final Assembly, Rear" on page 816
and perform the following steps.
660
iSeries Model 830, 840, SB2, and SB3 Problem Analysis, Repair and Parts V5R1
e. Pull up on both latches at the same time to remove the Network
Interface Controller Card.
Note: If you replacing the Network Interface Controller Card, then
you will need to remove the Clock Card and install it on the
new controller card.
f. Locate the small plastic cover on the side of the Network Interface
Controller Card. Press the two locking tabs together and remove
the cover.
g. Hold the controller card with the opening facing up, then grasp
the bar handle on the Clock Card and pull straight up to remove
it.
h. Align the holes in the Clock Card with the guide pins on the
controller card. Press down firmly on the bar handle until the
Clock Card is fully seated.
i. Complete the repair by reversing the removal procedures.
j. After exchanging an item, go to "Verifying the Repair" on page 920.
This ends the procedure.
830/SB2 System Unit.
Attention: It is important that the area inside the processor drawer is free of
dust build up. The mating of the two surfaces is critical for the processor to
function properly. Ensure that you have the special brush that was supplied
with the new processor and use it only when instructed to do so!
a. Inspect the inside of the processor drawer for dust particles. If dust is
visible, then clean the area, especially in and around the processors (do not
use the special brush at this time). It is important for this area to be clean
and free of debris, prior to continuing with the next step of this procedure.
b. Remove the screws from the processor air cover.
c. Remove the processor air cover from the drawer.
d. Inspect the inside of the processor drawer for dust particles. If dust is
visible, then clean the area, especially in and around the processors (do not
use the special brush at this time). It is important for this area to be clean
and free of debris, prior to continuing with the next step of this procedure.
e. Loosen and remove the 3/8" (9.5mm) hex head screw/spring assembly
from the end of the latching arm and pull the arm up until it rests against
the sheet metal.
f. Grasp the center of the processor assembly and remove it by pulling
straight up.
g. Lay the new processor and the processor that you just removed on their
backs so that the contact surface is facing upward. Be very careful not to
damage or contaminate these surfaces.
h. Carefully remove the array cover (black) from the new processor by gently
lifting one end and then the other until it easily slides up and off of the
contact surface. With the array cover oriented so that the side containing
the part number is facing down towards the processor that you just
removed, gently slide the array cover over the contact surface until it
snaps (before shipping it back to IBM). Then, place the processor that
you just removed out of the way.