Tyan Computer TYAN S1572 ATX JP23 CPU Speed, CPU Speed Settings for Cyrix/SGS/IBM 6x86/M1/AMD

3.2 Jumper Settings

CPU Speed Settings for Pentium P54C and P55C:

JP4	JP5	JP23	CPU Speed
off	off	1-2,3-4	75MHz
off	off	3-4	90MHz
off	off	1-2	100MHz
on	off	3-4	120MHz
on	off	1-2	133MHz
on	on	3-4	150MHz
on	on	1-2	166MHz
off	on	3-4	180MHz
off	on	1-2	200MHz

CPU Speed Settings for Cyrix/SGS/IBM 6x86/M1/AMD:

JP4	JP5	JP6	CPU Speed/ID
on	off	1-2,3-4	100MHz/P120+
on	off	3-4	120MHz/P150+
on	off	1-2	133MHz/P166+

DIMM Memory Voltage Select: 3V is Default

DIMM VCC	3V	5V
JP9	1-2	2-3
JP10	1-2	2-3

Heatsink Fan Power: J18

pin1 GND

pin2 +12V

pin3 GND

S1572-001-01 http://www.tyan.com 9