Dell OptiPlex E1 Service Manual page 21

The hard-disk drive assembly (consisting of the hard-disk drive and the hard-
disk drive bracket) is located inside the chassis at the left front of the computer
and is attached to the bottom of the chassis. One 1-inch-high EIDE hard-disk
drive can be mounted on the hard-disk drive bracket.
NOTE: Throughout this manual, references to component locations assume
the chassis orientation illustrated in Figure 1-7.
left
side
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The computer has a 145-W system power supply that can operate from an AC
power source of 115 VAC at 50 to 60 Hz or 230 VAC at 50 to 60 Hz.
The system power supply provides the DC operating voltages and currents
listed in Table 1-4.
NOTE: The power supply produces DC voltages only under its loaded condi-
tion. Therefore, when you measure these voltages, the DC power input
connectors must be connected to their corresponding power input connectors
on the system board or drives.
back
front
right
side
System Overview 1-13