TYAN TOMCAT I845 Manual page 12

2.5– CMOS Reset (JP13)
2.6 – S/PDIF Header (J1)
Pin_3
Pin_3
You can reset the CMOS settings by
using this jumper if you have forgotten
your system/setup password or need to
clear system BIOS setting.
- Power off system and disconnect
both power connectors from the
motherboard
- Use jumper cap to close Pin_2 and
Pin_3 for several seconds to Clear
CMOS
- Put jumper cap back to Pin_1 and
Pin_2 (default setting)
Reconnect power & power on system
Pin-1
SPDIF
_OUT
12
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Default
Pin_1
Clear
Pin_1
Pin-2 Pin-3 Pin-4
NC KEY GND