VEXTREC TECHNOLOGY, INC.
GMB-P56IAX (VER. 1.02)
| 
 Device Type  | 
 Mainboard  | 
| 
 Processor  | 
 CX 6X86/AM K5/Pentium/Pentium MMX  | 
| 
 Processor Speed  | 
 75/90/100/120/133/150/166/200MHz  | 
| 
 Chip Set  | 
 Intel 430VX  | 
| 
 Maximum Onboard Memory  | 
 128MB (EDO & SDRAM supported)  | 
| 
 Cache  | 
 256/512KB  | 
| 
 BIOS  | 
 AMI/Award  | 
| 
 I/O Options  | 
 32-bit PCI slots (4), floppy drive interface, IDE interface (2), parallel port, PS/2 mouse port, serial ports (2), cache slot, IR connector, USB connector (2)  | 
| 
 Dimensions  | 
 305mm x 210mm  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 ATX power supply  | 
 ATX  | 
 IR connector  | 
 J10  | 
| 
 Reset switch  | 
 J1  | 
 USB connector 1  | 
 J11  | 
| 
 Green PC connector  | 
 J2  | 
 USB connector 2  | 
 J12  | 
| 
 Suspend LED  | 
 J3  | 
 Serial port 2  | 
 J14  | 
| 
 Speaker  | 
 J4  | 
 Parallel port  | 
 J15  | 
| 
 IDE interface LED  | 
 J5  | 
 PS/2 mouse port  | 
 J16  | 
| 
 Power LED & keylock  | 
 J6  | 
 Serial port 1  | 
 J18  | 
| 
 IDE interface 2  | 
 J7  | 
 Power switch  | 
 JP4  | 
| 
 IDE interface 1  | 
 J8  | 
 32-bit PCI slots  | 
 PC1 - PC4  | 
| 
 Floppy drive interface  | 
 J9  | 
 Cache slot  | 
 SL1  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Label  | 
 Position  | |
| 
 »  | 
 CMOS memory normal operation  | 
 JP1  | 
 Open  | 
| 
 CMOS memory clear  | 
 JP1  | 
 Closed  | |
| 
 Flash BIOS voltage select 12v  | 
 JP2  | 
 Pins 1 & 2 closed  | |
| 
 Flash BIOS voltage select 5v  | 
 JP2  | 
 Pins 2 & 3 closed  | |
| 
 DRAM CONFIGURATION  | |||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 Bank 2  | 
| 
 4MB  | 
 (2) 512KB x 32  | 
 None  | 
 None  | 
| 
 8MB  | 
 (2) 512KB x 32  | 
 (2) 512KB x 32  | 
 None  | 
| 
 8MB  | 
 (2) 1MB x 32  | 
 None  | 
 None  | 
| 
 16MB  | 
 (2) 1MB x 32  | 
 (2) 1MB x 32  | 
 None  | 
| 
 16MB  | 
 (2) 2MB x 32  | 
 None  | 
 None  | 
| 
 24MB  | 
 (2) 1MB x 32  | 
 (2) 1MB x 32  | 
 (1) 1MB x 64  | 
| 
 24MB  | 
 (2) 2MB x 32  | 
 (2) 1MB x 32  | 
 None  | 
| 
 32MB  | 
 (2) 2MB x 32  | 
 (2) 2MB x 32  | 
 None  | 
| 
 32MB  | 
 (2) 4MB x 32  | 
 None  | 
 None  | 
| 
 40MB  | 
 (2) 2MB x 32  | 
 (2) 2MB x 32  | 
 (1) 1MB x 64  | 
| 
 40MB  | 
 (2) 4MB x 32  | 
 (2) 1MB x 32  | 
 None  | 
| 
 48MB  | 
 (2) 2MB x 32  | 
 (2) 2MB x 32  | 
 (1) 2MB x 64  | 
| 
 48MB  | 
 (2) 4MB x 32  | 
 (2) 2MB x 32  | 
 None  | 
| 
 64MB  | 
 (2) 4MB x 32  | 
 (2) 4MB x 32  | 
 None  | 
| 
 64MB  | 
 (2) 8MB x 32  | 
 None  | 
 None  | 
| 
 72MB  | 
 (2) 4MB x 32  | 
 (2) 4MB x 32  | 
 (1) 1MB x 64  | 
| 
 72MB  | 
 (2) 8MB x 32  | 
 (2) 1MB x 32  | 
 None  | 
| 
 80MB  | 
 (2) 4MB x 32  | 
 (2) 4MB x 32  | 
 (1) 2MB x 64  | 
| 
 80MB  | 
 (2) 8MB x 32  | 
 (2) 2MB x 32  | 
 None  | 
| 
 96MB  | 
 (2) 4MB x 32  | 
 (2) 4MB x 32  | 
 (1) 4MB x 64  | 
| 
 96MB  | 
 (2) 8MB x 32  | 
 (2) 4MB x 32  | 
 None  | 
| 
 128MB  | 
 (2) 8MB x 32  | 
 (2) 8MB x 32  | 
 None  | 
| 
 Note: Board accepts EDO and SDRAM.  | |||
| 
 DRAM JUMPER CONFIGURATION  | ||
| 
 Voltage  | 
 S7  | 
 S8  | 
| 
 3.3v  | 
 Pins 2 & 3 closed  | 
 Pins 2 & 3 closed  | 
| 
 5v  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | 
| 
 CACHE CONFIGURATION  | 
| 
 256KB onboard, upgradeable to 512KB by inserting a cache module in SL1.  | 
| 
 CPU SPEED SELECTION (CX 6X86)  | |||||||
| 
 Speed  | 
 Clock speed  | 
 Multiplier  | 
 JP11  | 
 JP12  | 
 S1  | 
 S2  | 
 S3  | 
| 
 120MHz  | 
 50MHz  | 
 2x  | 
 2 & 3  | 
 1 & 2  | 
 Closed  | 
 Closed  | 
 Open  | 
| 
 133MHz  | 
 55MHz  | 
 2x  | 
 2 & 3  | 
 1 & 2  | 
 Open  | 
 Closed  | 
 Open  | 
| 
 150MHz  | 
 60MHz  | 
 2x  | 
 2 & 3  | 
 1 & 2  | 
 Closed  | 
 Open  | 
 Open  | 
| 
 166MHz  | 
 66MHz  | 
 2x  | 
 2 & 3  | 
 1 & 2  | 
 Open  | 
 Open  | 
 Open  | 
| 
 200MHz  | 
 66MHz  | 
 2.5x  | 
 2 & 3  | 
 1 & 2  | 
 Open  | 
 Open  | 
 Closed  | 
| 
 Note: Numbers designate pins that should be closed.  | |||||||
| 
 CPU SPEED SELECTION (AM K5)  | |||||||
| 
 Speed  | 
 Clock speed  | 
 Multiplier  | 
 JP11  | 
 JP12  | 
 S1  | 
 S2  | 
 S3  | 
| 
 75MHz  | 
 50MHz  | 
 1.5x  | 
 1 & 2  | 
 1 & 2  | 
 Closed  | 
 Closed  | 
 Open  | 
| 
 90MHz  | 
 60MHz  | 
 1.5x  | 
 1 & 2  | 
 1 & 2  | 
 Closed  | 
 Open  | 
 Open  | 
| 
 100MHz  | 
 66MHz  | 
 1.5x  | 
 1 & 2  | 
 1 & 2  | 
 Open  | 
 Open  | 
 Open  | 
| 
 120MHz  | 
 60MHz  | 
 2x  | 
 1 & 2  | 
 1 & 2  | 
 Closed  | 
 Open  | 
 Open  | 
| 
 133MHz  | 
 66MHz  | 
 2x  | 
 1 & 2  | 
 1 & 2  | 
 Open  | 
 Open  | 
 Open  | 
| 
 150MHz  | 
 60MHz  | 
 2.5x  | 
 1 & 2  | 
 1 & 2  | 
 Open  | 
 Open  | 
 Open  | 
| 
 166MHz  | 
 66MHz  | 
 2.5x  | 
 2 & 3  | 
 2 & 3  | 
 Open  | 
 Open  | 
 Open  | 
| 
 Note: Numbers designate pins that should be closed.  | |||||||
| 
 CPU SPEED SELECTION (PENTIUM)  | |||||||
| 
 Speed  | 
 Clock speed  | 
 Multiplier  | 
 JP11  | 
 JP12  | 
 S1  | 
 S2  | 
 S3  | 
| 
 75MHz  | 
 50MHz  | 
 1.5x  | 
 1 & 2  | 
 1 & 2  | 
 Closed  | 
 Closed  | 
 Open  | 
| 
 90MHz  | 
 60MHz  | 
 1.5x  | 
 1 & 2  | 
 1 & 2  | 
 Closed  | 
 Open  | 
 Open  | 
| 
 100MHz  | 
 66MHz  | 
 1.5x  | 
 1 & 2  | 
 1 & 2  | 
 Open  | 
 Open  | 
 Open  | 
| 
 120MHz  | 
 60MHz  | 
 2x  | 
 2 & 3  | 
 1 & 2  | 
 Closed  | 
 Open  | 
 Open  | 
| 
 133MHz  | 
 66MHz  | 
 2x  | 
 2 & 3  | 
 1 & 2  | 
 Open  | 
 Open  | 
 Open  | 
| 
 150MHz  | 
 60MHz  | 
 2.5x  | 
 2 & 3  | 
 2 & 3  | 
 Closed  | 
 Open  | 
 Open  | 
| 
 166MHz  | 
 66MHz  | 
 2.5x  | 
 2 & 3  | 
 2 & 3  | 
 Open  | 
 Open  | 
 Open  | 
| 
 200MHz  | 
 66MHz  | 
 3x  | 
 1 & 2  | 
 2 & 3  | 
 Open  | 
 Open  | 
 Open  | 
| 
 Note: Numbers designate pins that should be closed.  | |||||||
| 
 CPU SPEED SELECTION (PENTIUM MMX)  | |||||||
| 
 Speed  | 
 Clock speed  | 
 Multiplier  | 
 JP11  | 
 JP12  | 
 S1  | 
 S2  | 
 S3  | 
| 
 150MHz  | 
 60MHz  | 
 2.5x  | 
 2 & 3  | 
 2 & 3  | 
 Closed  | 
 Open  | 
 Open  | 
| 
 166MHz  | 
 66MHz  | 
 2.5x  | 
 2 & 3  | 
 2 & 3  | 
 Open  | 
 Open  | 
 Open  | 
| 
 200MHz  | 
 66MHz  | 
 3x  | 
 1 & 2  | 
 2 & 3  | 
 Open  | 
 Open  | 
 Open  | 
| 
 Note: Numbers designate pins that should be closed.  | |||||||
| 
 CPU VOLTAGE SELECTION (SINGLE)  | ||||
| 
 Voltage  | 
 JP8  | 
 S4  | 
 S5  | 
 S6  | 
| 
 3.4v  | 
 Closed  | 
 Closed  | 
 Closed  | 
 Closed  | 
| 
 3.5v  | 
 Open  | 
 Closed  | 
 Closed  | 
 Closed  | 
| 
 CPU VOLTAGE SELECTION (DUAL)  | ||||
| 
 Voltage (core)  | 
 JP8  | 
 S4  | 
 S5  | 
 S6  | 
| 
 2.8v  | 
 Closed  | 
 Open  | 
 Open  | 
 Open  |