Dell PowerEdge 840 Hardware Owner's Manual (PDF) - Page 42

Inside the System - intrusion switch

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Inside the System In Figure 3-1, the system cover is opened and the front bezel removed to provide an interior view of the system. Figure 3-1. Inside the System 3 2 4 1 5 7 6 1 front fan 4 cooling shroud 7 chassis-intrusion switch 2 drive cage 5 power supply 3 expansion cards (optional) 6 5.25-inch drive bays (2) The system board can accommodate a single processor, five expansion cards, and four memory modules. The hard-drive cage provides space for up to four SAS or SATA hard drives. Two 5.25-inch external drive bays in the front of the system can accommodate optical or tape drives; a single 3.25 drive can accommodate an optional diskette drive. A controller expansion card is required to use SAS hard drives. Power is supplied to the system board and internal peripherals through a single, nonredundant power supply. 42 Installing System Components

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42
Installing System Components
Inside the System
In Figure 3-1, the system cover is opened and the front bezel removed to provide an interior view of the
system.
Figure 3-1.
Inside the System
The system board can accommodate a single processor, five expansion cards, and four memory modules.
The hard-drive cage provides space for up to four SAS or SATA hard drives. Two 5.25-inch external drive
bays in the front of the system can accommodate optical or tape drives; a single 3.25 drive can
accommodate an optional diskette drive. A controller expansion card is required to use SAS hard drives.
Power is supplied to the system board and internal peripherals through a single, nonredundant power
supply.
1
front fan
2
drive cage
3
expansion cards (optional)
4
cooling shroud
5
power supply
6
5.25-inch drive bays (2)
7
chassis-intrusion switch
2
1
4
7
6
5
3