Dell POWEREDGE 840, Hardware Owner'S Manual

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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
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