CPU Internal Clock Setting

CPU internal clock	JP25
1.5 x External Clock	Open
2 x External Clock	Short

CPU External Clock Setting

CPU	Ext. clk	JP20	JP21	JP22	JP23	Int. clk
150Mhz and up	Do not support
133Mhz	66Mhz	2&3	2&3	1&2	2&3	2x
120Mhz	60Mhz	2&3	1&2	2&3	1&2	2x
100Mhz	66Mhz	2&3	2&3	1&2	2&3	1.5x
90Mhz	60Mhz	2&3	1&2	2&3	1&2	1.5x
75Mhz	50Mhz	1&2	1&2	1&2	2&3	1.5x

CPU Volatge Setting

Voltage Type	JP29	JP30	JP31
STD/VR 3.4V	short	open	open
VRE 3.5V	open	short	open
VRE 3.6V	open	open	short

CPU Support and Jumper Setting for PCI/I-P54TP4 Mainboard

CPU Internal Clock Setting

CPU internal clock	JP25
1.5 x External Clock	Open
2 x External Clock	Short

CPU External Clock Setting

CPU	Ext. clk	JP20	JP21	JP22	JP23	Int. clk
150Mhz and up	Do not support
133Mhz	66Mhz	2&3	2&3	1&2	2&3	2x
120Mhz	60Mhz	2&3	1&2	2&3	1&2	2x
100Mhz	66Mhz	2&3	2&3	1&2	2&3	1.5x
90Mhz	60Mhz	2&3	1&2	2&3	1&2	1.5x
75Mhz	50Mhz	1&2	1&2	1&2	2&3	1.5x

CPU Volatge Setting

Voltage Type	JP29	JP30	JP31
STD/VR 3.4V	short	open	open
VRE 3.5V	open	short	open
VRE 3.6V	open	open	short