Abit KR7A, User Manual

Page: 22 / 104

Chapter 2
KR7A/KR7A-RAID
2-12
Pin number Name or significance of signal
1 VCC0
2 VCC1
3 Data0
-
4 Data0 +
5 Data1 -
6 Data1 +
7 Ground
8 Ground
9 NC
10 NC
(9). CCMOS1: CMOS Discharge Jumper
Jumper CCMOS1 discharge CMOS memory. When
you install the motherboard, make sure this jumper is
set for normal operation (pin 1 and 2 shorted). See
Figure 2-8.
Figure 2-8. CCMOS1 jumper setting
Note
Before you clear the CMOS, you have to first turn the power off (including the +5V standby power).
Otherwise, your system may work abnormally.
After updating your BIOS and before boot up, please clear the CMOS first. Then put the jumper to its
default position. After that, you can reboot your system and ensure that your system is working fine.