Tyan Computer Transport GT20 B3970-U - Manual (Page 18)

10 Chapter 1: Overview
Jumpers & Connectors
Jumper
/Connector
Function
J2/J3 3-pin Back Panel Fan Connector
J4/J22/J23/
J35 4-pin Fan Connector with Speed Control
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