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Removal steps of system board and magnesium structure frame
4
1
1
2
2
3
Step Screw (quantity) Color
Torque
1
Hex stud, nylon-coated (2) Silver
0.392 Nm
(4.0 kgf-cm)
2
M2 × 7 mm, wafer-head, nylon-coated (2) Silver
0.181 Nm
(1.85 kgf-cm)
3
M2 × 3 mm, wafer-head, nylon-coated (1) Silver
0.181 Nm
(1.85 kgf-cm)
When installing When you replace the system board, attach thermal rubbers as shown in this gure.
Depending on the models you are servicing, the number of thermal rubbers are different. Check the thermal
rubbers on the old system board, and nd duplicates of them in the new FRU package and apply them to
the new system board.
b
c
d
a
Removal steps of MDC
Note: Only some selected models are installed with a MDC.
102 Hardware Maintenance Manual