Tyan Computer B3970-U manual Jumpers & Connectors Function, JP8

Jumpers & Connectors

Jumper

/Connector

Function

J2/J3	3-pin Back Panel Fan Connector
J4/J22/J23/	4-pin Fan Connector with Speed Control
J35
J6	COM2 Header
J24	USB Front Panel Connector
J25	Front Panel SATA LED Pin Header
J26	Front Panel Header
J27	LCM Pin Header
J29	IPMB Pin Header
JP1	VGA Enable/Disable Jumper
	(Close 1-2) Default, Enabled
	(Close 2-3) Disabled
JP2/JP3	SMDC/ASF2.0 Select Jumper
	(Close 1-2) Default, support ASF2.0
	(Close 2-3) support SMDC card
JP6	PCI-X Frequency Select Jumper
	Open: 100MHz
	Installed: Default, 133MHz
JP8	Clear CMOS Jumper
	(Close 1-2) Default
	(Close 2-3) Clear CMOS
J21	TARO SO-DIMM Socket
J36	SMDC Connector
J5/J28	Reserved for OEM only

10 Chapter 1: Overview