TYAN TAHOE PLUS ATX Manual page 10

23.3 Jumper Settings
CPU Speed Settings for Pentium II and Pentium Pro Processors:
CPU J31
150MHz Off
166MHz Off
180MHz On
200MHz On
233MHz Off
266MHz On
300MHz Off
Bus Speed
HOST PCI
60MHz 30MHz 3-4
66MHz 33MHz 1-2
DRAM Voltage Select
J13 J14
5V Open Open
3.3V Close Close
(* Default is 5V)
CMOS Reset: J44 (Always reset after changing BIOS)
CMOS Normal Clear (Reset)
J44 Open
S1686S/D-001-02 http://www.tyan.com
J32 J33 J34
On On On
On On On
Off On On
Off On On
Off On On
On Off On
On Off On
J11 J12 J37
On Off
Off On
J15 J16 J24
Close Close Open
Open Open Close
Normal
Close
J44
10
J37 J11 J12
3-4 Off On
1-2 On Off
3-4 Off On
1-2 On Off
1-2 On Off
1-2 On Off
1-2 On Off
J11 J12 J37 J11 J12 J37
CPU60MHz
CPU66MHz
PCI30MHz
PCI33MHz
J25 J26 J27
Open Close Close
Close Open Open
Clear (reset)
J44