PCA-6763 User Manual
8
1.8
Jumper Settings
This section provides instructions on how to configure your motherboard by setting
the jumpers. It also includes the motherboard’s default settings and your options for
each jumper.
1.8.1
How to set jumpers
You can configure your motherboard to match the needs of your application by set-
ting the jumpers. A jumper is a metal bridge that closes an electrical circuit. It consists
of two metal pins and a small metal clip (often protected by a plastic cover) that slides
over the pins to connect them. To “close” (or turn ON) a jumper, you connect the pins
with the clip. To “open” (or turn OFF) a jumper, you remove the clip. Sometimes a
jumper consists of a set of three pins, labeled 1, 2 and 3. In this case you connect
either pins 1 and 2, or 2 and 3. A pair of needle-nose pliers may be useful when set-
ting jumpers.
1.8.2
BIOS CMOS (JCMOS1)
PCA-6763 CPU card contains a jumper that can erase BIOS CMOS data and reset
the system BIOS information. Normally this jumper should be set with pins 1-2
closed. If you want to reset those data, set JCMOS1 to 2-3 closed for just a few sec-
onds, and then move the jumper back to 1-2 closed. This procedure will reset the
CMOS to its last status or default setting.
Please note that both date and time information will be reset after short pin 2-3.
1.8.3
AT/ATX mode HW selection (ATXF1)
The PCA-6763 can support an advanced soft power switch function. When using an
ATX power supply, please follow the instructions below to enable ATX functions.
1.
Find ATX feature cable (1700002343).
2.
Connect the 3-pin plug of the cable to ATXF1 (ATX feature connector). And con-
nect another plug to backplane HCN1 connector.
3.
Connect the power on/off button cable of the chassis to pin 9 and pin 10 of
JFP1. Default value is set ATXF1 to short pin1-2 to support AT power.
Table 1.3: Clear BIOS CMOS (JCMOS1)
Function
Jumper Setting
*Keep BIOS CMOS data
Clear BIOS CMOS data
* Default setting
1-2 closed
1
2
3
2-3 closed
1
2
3
Table 1.4: AT/ATX Mode HW Selection (ATXF1)
Function
Jumper Setting
*AT mode
1-2 closed
ATX mode
Connecting to backplane with
cable: 1700002343
* Default setting
1
2
3
Summary of Contents for PCA-6763
Page 7: ...PCA 6763 User Manual vi ...
Page 11: ...PCA 6763 User Manual x ...
Page 12: ...Chapter 1 1 Hardware Configuration ...
Page 22: ...Chapter 2 2 Connecting Peripherals ...
Page 37: ...PCA 6763 User Manual 26 ...
Page 38: ...Chapter 3 3 AMI BIOS Setup ...
Page 46: ...35 PCA 6763 User Manual Chapter 3 AMI BIOS Setup 3 2 2 7 IDE Configuration ...
Page 53: ...PCA 6763 User Manual 42 ...
Page 62: ...Chapter 4 4 Value Added Software Services ...
Page 64: ...Chapter 5 5 Chipset Software Installation Utility ...
Page 66: ...Chapter 6 6 LAN Configuration ...
Page 68: ...Appendix A A Programming the Watchdog Timer ...
Page 76: ...Appendix B B I O Pin Assignments ...
Page 89: ...PCA 6763 User Manual 78 ...