Cooling system – Antec TWELVE HUNDRED V3 User Manual
Page 11

10
3.5
Rewiring Motherboard Header Connections
There may come a time that you need to reconfigure the pin-out of a motherboard header connector. 
Examples could be for your USB header, audio input header, or some other front panel connector such 
as the Power Button connector. 
Before performing any work, please refer to your motherboard manual or your motherboard 
manufacturer's website to be sure of the pin-out needed for your connector. And we strongly 
recommend making a notated drawing before beginning work so that you can recover if your work gets 
disturbed.
1.
Determine which wires you need to remove in
order to rewire your plug to match the USB pin-outs 
on your motherboard (refer to your motherboard 
manual). Working on one connector at a time, use 
a very small flathead screwdriver or similar tool to 
lift up on the black tab located beside the gold 
posts (squares). This will allow you to easily slide 
out the pins from the USB plug. 
2.
Working carefully so as not to damage the wires,
connectors, or pins, slowly remove the pin from 
the connector. Repeat these steps for each wire 
you need to change. 
3.
Working carefully so as not to damage the wires,
connectors or pins, slowly reinsert the pin into 
the correct slot of the connector, then snap 
closed the black tab that was lifted in step 1. 
Repeat these steps for each wire you need to 
change. 
 
 
Cooling System
4.1
Included Fans
 
Big Boy 200™ fan: 
The Twelve Hundred V3 comes with a Big Boy 200 mm blue LED fan. This fan has a three-speed switch 
that lets you choose the speed best suited to your needs and a switch to turn on or off the blue LED. The 
default fan speed setting is Low
.
 
200 mm Fan Specifications: 
Size: 200 x 30 mm three-speed fan 
Rated Voltage: 12V DC 
Operating Voltage: 10.8V ~ 13.2 V 
 
 
 
