M725 Motherboard Settings and Configuration

PC CHIPS MAUNFACTURING, LTD.

M725

Device Type
Mainboard
Processor
Pentium II
Processor Speed
233/266/300/333MHz
Chip Set
Intel
Maximum Onboard Memory
384MB (EDO & SDRAM supported)
Cache
256/512KB (located on the Pentium II CPU)
BIOS
AMI
Dimensions
220mm x 220mm
I/O Options
32-bit PCI slots (3), floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, PS/2 mouse interface, serial ports (2), ATX power connector, AGP slot, audio in – CD-ROMs (2)

CONNECTIONS
Purpose
Location
Purpose
Location
AGP slot
AGP
Sound and Game Header
J3
ATX power connector
ATX
ATX form card connector
J4
Audio in – CD-ROM
CD1
Speaker
J5/pins 1, 3, 5, 7
Audio in – CD-ROM
CD2
Power LED & keylock
J5/pins 2, 4, 6, 8, 10
Serial port 1
COM1
Turbo LED
J5/pins 13 & 14
Serial port 2
COM2
IDE interface LED
J5/pins 15 & 16
CPU fan power
FAN1
Reset switch
J5/pins 17 & 18
Floppy drive interface
FDC1
Green PC LED
J5/pins 19 & 20
IDE interface 1
IDE1
32-bit PCI slots
PC1 - PC3
IDE interface 2
IDE2
Parallel port
PRN1
Digital audio out
J1
PS/2 mouse interface
PS1
Digital audio in
J2
PS/2 mouse port
PS2

USER CONFIGURABLE SETTINGS
Function
Label
Position

Sound pro enabled
JP1
Pins 2 & 3 closed

Sound pro disabled
JP1
Pins 1 & 2 closed
»
Microphone type select standard
JP2
Open

Microphone type select special
JP2
Closed
»
CMOS memory normal operation
JP10
Pins 1 & 2 closed

CMOS memory clear
JP10
Pins 2 & 3 closed

DIMM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
8 MB
1 M x 64
None
None
16 MB
1 M x 64
1 M x 64
None
16 MB
2 M x 64
None
None
24 MB
1 M x 64
1 M x 64
1 M x 64
32 MB
2 M x 64
2 M x 64
None
32 MB
4 M x 64
None
None
40 MB
2 M x 64
2 M x 64
1 M x 64
48 MB
2 M x 64
2 M x 64
2 M x 64
64 MB
4 M x 64
4 M x 64
None
64 MB
8 M x 64
None
None
80 MB
4 M x 64
4 M x 64
2 M x 64
96 MB
4 M x 64
4 M x 64
4 M x 64
128 MB
8 M x 64
8 M x 64
None
128 MB
16 M x 64
None
None
130 MB
8 M x 64
8 M x 64
4 M x 64
192 MB
8 M x 64
8 M x 64
8 M x 64
256 MB
16 M x 64
16 M x 64
None
320 MB
16 M x 64
16 M x 64
8 M x 64
384 MB
16 M x 64
16 M x 64
16 M x 64

DIMM VOLTAGE CONFIGURATION
Voltage
JP5A
JP5B
»
3.3v
Pins 2 & 3 closed
Pins 2 & 3 closed

5v
Pins 1 & 2 closed
Pins 1 & 2 closed

CACHE CONFIGURATION
Note: The cache is located on the Pentium II CPU.

CPU FREQUENCY SELECTION
Frequency
JP7
66MHz
Pins 2 & 3 closed

CPU MULTIPLIER SELECTION
Multiplier
JP3A
JP3B
JP3C
JP3D
1.5x
Open
Open
Closed
Open
2x
Closed
Closed
Closed
Closed
2x
Open
Open
Open
Open
2.5x
Open
Closed
Closed
Closed
3x
Closed
Closed
Open
Closed
3.5x
Open
Closed
Open
Closed
4x
Closed
Closed
Closed
Open
4.5x
Open
Closed
Closed
Open
5x
Closed
Closed
Open
Open
5.5x
Open
Closed
Open
Open
6x
Closed
Open
Closed
Closed
6.5x
Open
Open
Closed
Closed
7x
Closed
Open
Open
Closed
7.5x
Open
Open
Open
Closed
8x
Closed
Open
Closed
Open

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M725 Motherboard Settings and Configuration

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Device Type	Mainboard
Processor	Pentium II
Processor Speed	233/266/300/333MHz
Chip Set	Intel
Maximum Onboard Memory	384MB (EDO & SDRAM supported)
Cache	256/512KB (located on the Pentium II CPU)
BIOS	AMI
Dimensions	220mm x 220mm
I/O Options	32-bit PCI slots (3), floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, PS/2 mouse interface, serial ports (2), ATX power connector, AGP slot, audio in – CD-ROMs (2)

CONNECTIONS
Purpose	Location	Purpose	Location
AGP slot	AGP	Sound and Game Header	J3
ATX power connector	ATX	ATX form card connector	J4
Audio in – CD-ROM	CD1	Speaker	J5/pins 1, 3, 5, 7
Audio in – CD-ROM	CD2	Power LED & keylock	J5/pins 2, 4, 6, 8, 10
Serial port 1	COM1	Turbo LED	J5/pins 13 & 14
Serial port 2	COM2	IDE interface LED	J5/pins 15 & 16
CPU fan power	FAN1	Reset switch	J5/pins 17 & 18
Floppy drive interface	FDC1	Green PC LED	J5/pins 19 & 20
IDE interface 1	IDE1	32-bit PCI slots	PC1 - PC3
IDE interface 2	IDE2	Parallel port	PRN1
Digital audio out	J1	PS/2 mouse interface	PS1
Digital audio in	J2	PS/2 mouse port	PS2

USER CONFIGURABLE SETTINGS
Function		Label	Position
	Sound pro enabled	JP1	Pins 2 & 3 closed
	Sound pro disabled	JP1	Pins 1 & 2 closed
»	Microphone type select standard	JP2	Open
	Microphone type select special	JP2	Closed
»	CMOS memory normal operation	JP10	Pins 1 & 2 closed
	CMOS memory clear	JP10	Pins 2 & 3 closed

DIMM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2
8 MB	1 M x 64	None	None
16 MB	1 M x 64	1 M x 64	None
16 MB	2 M x 64	None	None
24 MB	1 M x 64	1 M x 64	1 M x 64
32 MB	2 M x 64	2 M x 64	None
32 MB	4 M x 64	None	None
40 MB	2 M x 64	2 M x 64	1 M x 64
48 MB	2 M x 64	2 M x 64	2 M x 64
64 MB	4 M x 64	4 M x 64	None
64 MB	8 M x 64	None	None
80 MB	4 M x 64	4 M x 64	2 M x 64
96 MB	4 M x 64	4 M x 64	4 M x 64
128 MB	8 M x 64	8 M x 64	None
128 MB	16 M x 64	None	None
130 MB	8 M x 64	8 M x 64	4 M x 64
192 MB	8 M x 64	8 M x 64	8 M x 64
256 MB	16 M x 64	16 M x 64	None
320 MB	16 M x 64	16 M x 64	8 M x 64
384 MB	16 M x 64	16 M x 64	16 M x 64

DIMM VOLTAGE CONFIGURATION
Voltage		JP5A	JP5B
»	3.3v	Pins 2 & 3 closed	Pins 2 & 3 closed
	5v	Pins 1 & 2 closed	Pins 1 & 2 closed

CPU FREQUENCY SELECTION
Frequency	JP7
66MHz	Pins 2 & 3 closed

CPU MULTIPLIER SELECTION
Multiplier	JP3A	JP3B	JP3C	JP3D
1.5x	Open	Open	Closed	Open
2x	Closed	Closed	Closed	Closed
2x	Open	Open	Open	Open
2.5x	Open	Closed	Closed	Closed
3x	Closed	Closed	Open	Closed
3.5x	Open	Closed	Open	Closed
4x	Closed	Closed	Closed	Open
4.5x	Open	Closed	Closed	Open
5x	Closed	Closed	Open	Open
5.5x	Open	Closed	Open	Open
6x	Closed	Open	Closed	Closed
6.5x	Open	Open	Closed	Closed
7x	Closed	Open	Open	Closed
7.5x	Open	Open	Open	Closed
8x	Closed	Open	Closed	Open