Abit AB-NV7-133R User Manual page 21

Installing the Motherboard
(5). RT1 & RT2: Processor & System Temperature Thermistor
(6). USB1, USB2 and USB3 Headers: Additional USB Plugs Header
The USB2 and USB3 headers provides USB 2.0 specification functions, please use the special USB
cable design for USB 2.0 specifications. Otherwise, it may cause not stable or signal error situation.
The RT1 is used to detect the processor temperature.
The RT2 is used to detect the system environment
temperature. You can see the readings in the BIOS
or in the hardware monitoring application main
screen.
Thess headers are for connecting the additional USB
port plugs. Each connector can provides two
additional USB plugs. Which means, total you can
get two additional USB plugs from each connector.
You can use the special USB port expansion cable
to connect it (the cable come with the metal plate
can fixed on the back panel of computer chassis).
The USB1 is for USB 1.1 devices connection, and
USB2/USB3 are for USB 2.0 devices connection.
Note
2-11
User's Manual