Dell Dimension 4550 - Manual (Page 98)

98 Adding Parts
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10 Remove the first hard drive from the upper bay and install it in the
lower bay:
a Disconnect the power and the hard-drive cables from the back of
the first hard drive.
b Press in the two green rail tabs and pull the first hard drive out of
the upper bay.
c Gently slide the first hard drive into the lower bay until you hear a
click.
d Reconnect the power and hard-drive cables to the back of the first
hard drive.
11 Gently slide the new hard drive into the upper bay until you hear a
click.
12 Connect a power cable to the drive.
NOTICE: Match the colored strip on the cable with pin 1 on the drive.
13 Locate the extra connector on the drive cable that is attached to your
first hard drive and attach the connector to the second hard drive.
Your computer uses cable-select drive cables, which means that the
device connected to the end connector of the drive cable is the master
device and the device connected to the middle connector is the slave
device. Ensure that the jumper setting on the new device is set for
rail tabs (2)
second hard drive
in upper bay
hard drive bay
first hard drive in
lower bay