
5-70 FRU Removal and Replacement
5.5.30 Main Fans Removal and Replacement (Model 400s)
Refer to Figure 5-48 and follow these steps to remove the main fans:
1. Remove the top and side covers, CPU board with plate, RFI cover, all ISA and
DIO cards, RFI cover, ISA or DIO-II card cage, and center wall.
2. Disconnect the fan cable from the motherboard.
3. Cut and remove the tiewraps from around the main power distribution cable and
fan cables.
4. Remove the fan bracket screw and remove the fan bracket.
5. Slide the fan out from its clips.
Figure 5-48. Model 400s Main Fans Removal
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