Hardware Reference
In-Depth Information
PreparingtheCase
The first step in preparing any case that has an installed power supply is to
look for an input-voltage selector switch on the rear of the power supply.
If that switch is present, make sure it's set to the correct input voltage. If the
switch is set for 230VAC and you connect the system to a 115VAC receptacle,
nothing bad happens. The power supply provides only half the voltage the
motherboard and other components expect, and the system simply doesn't
power up. However, if the input voltage is set to 115VAC and you connect the
power supply to a 230VAC receptacle, the system will receive twice the voltage
it's designed to accept, and you'll get a nice (and expensive) fireworks show.
The Antec TruePower Trio 550 power supply in the Atlas 550 is autosensing,
which means it detects the input voltage and adjusts itself automatically. No
switch necessary, and nothing to worry about. But if you're using some other
case and power supply, make sure to check.
To begin preparing the Antec Atlas 550 case, place it upright on a flat surface.
Loosen both of the captive thumbscrews that secure the side panel, as shown
in Figure 8-2, and then swing the panel out and remove it from the case, as
shown in Figure 8-3.
Figure 8-3.
Swing the side panel out and
remove it from the case
Figure 8-2.
Loosen both captive thumbscrews on the rear of the left side panel
The front bezel is secured by three black plastic latching tabs at the left front
edge of the chassis. Press the top tab gently to release the tension and pull
outward very gently on the top of the front bezel to prevent that tab from
snapping back into place. Repeat this procedure for the middle tab, as shown
in Figure 8-4, and the tab located near the bottom of the chassis frame.
After you release all three latching tabs, swing the front bezel out about 45°,
as shown in Figure 8-5. Lift the front bezel straight up an inch or so, remove it,
and place it aside.
With the front bezel removed, the hard drive cage cover, shown in Figure 8-5,
is visible. Loosen the two thumbscrews, top and bottom, that secure the drive
cage cover, as shown in Figure 8-6.
Figure 8-4.
Release the three latching tabs
that secure the front bezel to the chassis
frame
