User guide

IMB-G41A Micro-ATX Motherboard
Page 56
4.3 Jumper Settings
NOTE:
A jumper is a metal bridge used to close
an electrical circuit. It consists of two or
three metal pins and a small metal clip
(often protected by a plastic cover) that
slides over the pins to connect them. To
CLOSE/SHORT a jumper means
connecting the pins of the jumper with
the plastic clip and to OPEN a jumper means removing the plastic clip
from a jumper.
The hardware jumpers must be set before installation. Jumpers are shown in Table 4-1.
Description Label Type
AT/ATX Auto power setting jumper JAUTO1 2-pin header
Clear CMOS jumper J_CMOS1 3-pin header
COM Port RI/Voltage select jumper J_COM_F7
J_COM_F8
J_COM_F9
J_COM_F10
3-pin header
COM Port RI pin voltage setting J_COM_V7
J_COM_V8
J_COM_V9
J_COM_V10
3-pin header
COM2 Port RS-232/422/485 mode setting JP1 6-pin header
Table 4-1: Jumpers