Dell PowerEdge R620 Owner's Manual page 40

Figure 12. Inside the System—8 Hard Drive System
1. control panel assembly
2. cable securing clip
3. cooling fans (7)
4. cable securing bracket
5. cooling shroud
6. power supplies (2)
7. chassis intrusion switch
8. riser card 3
9. network daughter card
10. riser card 2
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11. storage controller card
12. network daughter card cooling shroud
13. DIMMs (24)
14. heat sink for processor 2
15. hard-drive backplane
16. control panel
17. hard drives (8)
18. optical drive (optional)