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System Board
To remove the system board:
1. Power down the device. See the "Powering Down the Device" section in this chapter.
2. Extend or remove the device from the rack. See the "Preparation Procedures" section in
this chapter.
3. Remove the access panel. See the "Device Access Panel" section in this chapter.
4. Remove the air baffle. See the "Air Baffle" section in this chapter.
5. Remove the PCI riser cage. See the "PCI Riser Cage" section in this chapter.
6. Remove all hot-plug fans. See the "Hot-Plug Fan" section in this chapter.
7. Remove the front fan bracket. See the "Front Fan Bracket" section in this chapter.
8. Remove any SDRAM DIMMs. See the "DIMMs" section in this chapter.
9. Remove the processors. See the "Processors" section in this chapter.
CAUTION: Discard the heatsink after you remove it from the processor. The
heatsink is for one-time use only; after use the thermal interface material is
degraded and does not provide proper thermal dissipation.
10. Remove the PPMs. See the "PPMs" section in this chapter.
11. Remove the Smart Array 5i Controller. See the "Smart Array 5i Controller" section in
this chapter.
12. Remove the battery. See the "Battery" section in this chapter.
13. Disconnect all cables connected to the system board.
NAS B2000 Maintenance and Service Guide
Removal and Replacement Procedures
2-53
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