CHAINTECH 9EJL4 User Manual page 18

Chapter 2
CN23/CN23A (CBOX™ 2 Front USB Connector for USB 2/3 and 4/5):
USB Port 2/3 CN23,
If you want to use a USB Keyboard, you must enable the USB keyboard support
function in BIOS's Integrated Peripherals menu (See Section 3.4). This board
contains a USB Host controller and a root hub with two connectors is also included
for an optional USB Adaptor (USB 2/3 and 4/5).
CN24 (CBOX™ 2 Front Audio Connector):
This connector gives you the option of a front panel audio jack cable ext. to be
plugged into a special custom- designed system case.
Simply remove the two jumper caps at pin [5-6] and [9-10] then plug it into the
(optional) cable ext. connector. Pin [5-6] and [9-10] are shorted (default) to enable
the back panel audio function.
It is recommended that you leave the default setting to prevent any burn out on
your CPU.
14
USB Port 4/5 CN23A