TYAN TAHOE 2 ATX Manual page 11

2.3.3 Jumper Settings
CPU Speed Settings for Pentium II and Pentium Pro Processors:
MHz J31
150 open
166 open
180 close
200 close
233 open
266 close
300 open
CMOS Reset (Always reset after changing BIOS)
J44
Closed momentarily to reset
(Cover Pins 1 & 2 momentarily with a
jumper cap and short the circuit
b e t we e n t h e s e 2 p i n s )
Bus Speed
HOST PCI
60MHz 30MHz open
66MHz 33MHz close
DRAM Voltage Select
J15 J16
5V Close Close
3.3V Open Open
I/O Select
J30
1-2
COM2 Close
Infra Red Open
S1682D-001-02
J32 J33 J34
close close close
close close close
open close close
open close close
open close close
close open close
close open close
J11 J12 J37
close 3-4
open 1-2
J26 J27 J13
Close Close Open
Open Open Close
J36
2-3 1-2 2-3
Open Close Open
Close Open Close
11
J37 J11 J12
3-4 open open
1-2 close open
3-4 open open
1-2 close open
1-2 close open
1-2 close open
1-2 close open
J44
J11 J12 J37 J11 J12 J37
60MHz 66MHz
J14 J24
J25
Open Open Open
Close Close Close
COM2 Infra Red
J30 J36
J30 J36