Antec III 500 User Manual

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At Antec, we continually refine and improve our products to ensure the highest 
quality. As such it’s possible that your new case may differ slightly from the 
descriptions in this manual.  This isn’t a problem; it’s simply an improvement. As 
of the date of publication, all features, descriptions, and illustrations in this manual 
are correct.
SONATA III 500 USER’S MANUAL
The Sonata III 500 comes with a 500 Watt EarthWatts™ power supply unit (PSU) 
which is built to be compatible with the ATX12V version 2.2 specification. This 
PSU features higher energy efficiency which reduces power consumption by up to 
25%, saving you money on your electricity bill. EarthWatts power supplies have 
achieved 80 PLUS® Certification, the latest independent standard in power supply 
efficiency. In addition EarthWatts includes a variety of protective circuitry: 
OPP (over power protection), OVP (Over Voltage Protection), and SCP (Short 
Circuit Protection).
EarthWatts also includes Universal Input with Active Power Factor Correction 
(PFC). Universal Input allows you to connect your Antec EarthWatts power supply 
to any AC power outlet between 100~240V without having to worry about setting 
a voltage switch. Active PFC reduces electrical waste by improving the power factor 
value to the power supply, helping the power plant to provide power to users 
more efficiently.
Power Switch: This power supply comes with a main power switch. Make sure 
you turn the switch to the ON (I) position before you boot up your computer for 
the first time. In normal operation there is no need to turn the switch to the OFF 
(O) position since the power supply is equipped with a soft on/off feature, which 
turns your computer on and off through the soft switch on your computer case. 
You may need to turn the switch to the OFF position occasionally should your 
computer crash and you cannot shut it down through use of the soft switch.
SETTING UP
Place the case upright on a flat, stable surface. The power supply fan should be 
at the back, facing you. Remove the thumbscrews from the panel with the latch. 
Unlock the side panel, swing the panel out, and remove it.  Set the panel safely 
aside.
Note: Please do not try to use your fingernails to pry or lift the panel. Inside the 
case you should see the power supply, a 120mm TriCool™ fan (preinstalled), some 
wiring with marked connectors (USB, PWR etc.), an installed I/O panel, and a 
power cord. You will also find a bag of hardware (screws, brass standoffs, 
plastic stands, etc.)
Disclaimer
This manual is intended only as a guide for Antec’s Computer Enclosures. For more 
comprehensive instructions on installing the motherboard and peripherals, please 
refer to the user’s manuals that come with those components.