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At Antec, we continually refine and improve our products to ensure the highest
quality. As such, your new case may differ slightly from the description 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.
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.
Twelve Hundred User’s Manual
Twelve Hundred – Gaming Case
The Twelve Hundred comes without a power supply. Make sure you choose a
power supply that is compatible with your computer components and has a long
enough power harness to reach your motherboard and peripheral devices. We
recommend our TruePower Quattro, TruePower Trio, or NeoPower power supplies for
the latest ATX specification compliance, broad compatibility, and power savings
capability.
Although care has been taken to prevent sharp edges in your Antec case, we
strongly recommend taking the appropriate time and care when working with it.
Avoid hurried or careless motions. Please use reasonable precaution.
Note: The Twelve Hundred comes with a top storage area. Antec does not recommend
that users put any liquid-containing items (drinks, ice cream, candles, perfume
dispensers, etc.) in this area. It was designed to hold your personal media player, digi-
tal camera, keys, coins, etc.
Setting Up
1. Place the case upright on a flat, stable surface so that the rear panel (power
supply and expansion slots) is facing you.
2. Remove the panel thumbscrews from a side panel and open it by sliding it
towards yourself.
Note: Place the panel thumbscrews carefully aside as they are NOT interchangeable
with the HDD cage thumbscrews.
3. Remove the panel thumbscrews from the other side panel and open it by
sliding it towards you. Place the screws carefully aside. Inside the case is the
power supply mount at the lower rear of the case and the 5.25” drive bay
area with three withHDD cages inside the bays. You will also find some wiring
marked connectors (USB, PWR etc.), an installed I/O panel and a toolbox
containing more hardware (screws, brass standoffs, etc.)
Note: Don’t use your fingernail to pry or lift the panels.
