TYAN TAHOE AT Manual page 10

2.3 Jumper Settings
Refer to the following table for a quick reference of jumper settings:
Jumper #
J3
J5,J6
J7, J8
J9
J21,J31,J32
J24,25,26,27
J17-20,37,38,40,41 DRAM Voltage Select
J45
J33
J36
J39
J43
CON 6
CON5 & 1
CON4
CON2 & 3
CON7
Reserved
Block J45 Pin Assignments
S1680S-001-02 http://www.tyan.com
Assignments
PS2/Mouse
Universal Serial Bus (J5: USB2, J6: USB1)
Reserved
power supply
bus speed
CPU speed
Pins 2,3: EXTSMI,
Pins15-16:IDE LED, Pins18-20:Power LED,
Pins22,23:Reset, Pins24-27: Speaker
Flash BIOS Volt.Select (5V:1-2, 12V:2-3) Don't change!
Reset CMOS (Closed: clear, Open: Normal)
12V CPU Fan (Pin 2 is "+"--positive)
Keyboard/Lock
LPT1
CON5: COM1, CON1:COM2
FDD
CON2: Primary IDE, CON3: Secondary IDE
IR2
J28-30, J34, J46, J48, J49
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