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  |