Tyan Computer S2877 warranty Front Panel Header J139 Function, Clear Cmos Header J112, Default

2.3.1 Front Panel Header: J139

Function		PIN		PIN	Function
	#		#
HDD LED+		1		2	PWR LED+
HDD LED-		3		4	PWR LED-
Reset		5		6	PWR
Button -					Button+
Reset		7		8	PWR
Button +					Button-
VCC		9		10	NC
IRRX		11		12	VCC
GND		13	14		KEY
IRTX		15		16	GND
NC		17		18	SPKR

2.3.2 Clear CMOS Header: J112

Pin_3	Pin_1	Default
Pin_3	Pin_1	Clear

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_1 and Pin_2 for several seconds to Clear CMOS

- Put jumper cap back to Pin_2 and Pin_3 (default setting)

Reconnect power & power on system

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