M525 JUMPER SETTING CHART

K/B BIOS

IO
Chips

Power Supply
Connector

JP13

JP14

USB

 DIMM

IDE1  IDE2

ISA SLOT

PCI SLOT

SIMM 
Socket

DIMM Socket

COM1

COM2

1

J1

PRN   FDC

1

1

1

1

1

1

VRM

JP15

JP6

JP5

JP8

JP11

JP12

J10

J11

J8

J9

JP1

JP2

PS/2 MOUSE

J3

J2

																				

Jumper Setting

J1	Keyboard Connector
	
	A standard five-pin female DIN Keyboard connector is located at the rear of the board J1.

Pin	Description	
1	Keyboard Clock	
2	Keyboard Data	
3	N.C.	
4	Ground	
5	+5VDC	

JP1 JP2    DIMM Module Voltage Selector
	
Description	JP2  JP1	

1

5V

3.3V

For SDRAM DIMM 
Module (3.3V)

1

5V

3.3V

For EDO DRAM/Fast Page DRAM DIMM Module (5V)

J3	PS/2 Mouse Connector

Pin	Description	
1	Mouse Data	
2	N.C.	
3	Ground	
4	+5V	
5	Mouse CLK	
6	N.C.	

USB	Set of Univeral Serial Bus Connector

Pin	Description	
1,2	+5VDC	
3,4	Data -	
5,6	Data+	
7,8	Ground	
9,10	Ground	

J11	RST (Reset Switch Connector)

Setting	Description	
Open	Normal Mode	
Short	Reset System	

J9	KEYLOCK (Keylock & Power LED Connector)

Pin	Description	
1	LED Output	
2	N.C.	
3	Ground	
4	Keylock	
5	Ground	

J8	SPK (Speaker Connector)

Pin	Description	
1	Speaker Out	
2	Ground	
3	Ground	
4	5V	

JP8	Flash ROM Voltage Jumper

Description	JP8	

12V

12Volt Flash programming
(Default)		

5V

5Volt Flash programming

J10	HDD LED (Hard Disk LED Connector)

Setting	Description	
Open	Normal Mode	
Short	Reset System	

JP5 JP6	CPU Speed Jumpers

CPU Clock	66MHz	60MHz	50MHz		
JP6				

JP5			

	

JP11 JP12	CPU Internal Clock Speed Selectors

Intel	Cyrix	AMD	JP11	JP12
	
2.0X

	2.0X	Reserved			
1.5X

	Reserved	1.5X			
2.5X	Reserved	Reserved			
3.0X	Reserved	Reserved			

JP15	CPU Voltage Regulator Output Selectors
Description	JP15	
3.5Volt (VRE)
(Default)		
3.3Volt (STD/VR)