VEXTREC TECHNOLOGY, INC. GMB-P56IPA (VER. 1.01) Device Type Mainboard Processor CX 6X68/AM K5/Pentium/Pentium MMX Processor Speed 75/90/100/120/133/150/166/180/200MHz Chip Set Intel 430VX Video Chip Set S3 Maximum Onboard 128MB (EDO & SDRAM supported) Memory Maximum Video 2MB Memory Cache 256/512KB BIOS AMI/Award I/O Options IDE interfaces (2), floppy drive interface, parallel port, PS/2 mouse port, serial ports (2), VGA port, VGA feature connector, cache slot, expansion slot, IR connector, USB connectors (2), FIR connector, MPEG module connector, green PC connector Dimensions 200mm x 320mm [Image] CONNECTIONS Purpose Location Purpose Location Reset switch J1 VGA port J14 Green PC connector J2 Parallel port J15 Suspend LED J3 Serial port 1 J16 Speaker J4 Serial port 2 J17 IDE interface LED J5 USB connector 1 J18 Power LED & keylock J6 USB connector 2 J19 IDE interface 1 J7 FIR connector J20 IDE interface 2 J8 IR connector J21 Floppy drive J9 PS/2 mouse port J22 interface VGA feature connector J12 Expansion slot SL1 S3 MPEG module J13 Cache slot SL2 upgrade connector USER CONFIGURABLE SETTINGS S3 MPEG Module not JP8 Open installed S3 MPEG Module JP8 Closed installed » CMOS memory normal JP9 Open operation CMOS memory clear JP9 Closed Flash BIOS voltage JP13 Pins 1 & 2 select 12v closed Flash BIOS voltage JP13 Pins 2 & 3 select 5v closed On board VGA enabled JP14 Closed On board VGA JP14 Open disabled DRAM CONFIGURATION Size Bank 0 Bank 1 Bank 2 8MB (2) 1MB x 36 None None 16MB (2) 1MB x 36 (2) 1MB x 36 None 16MB (2) 2MB x 36 None None 24MB (2) 1MB x 36 (2) 1MB x 36 (1) 1MB x 64 24MB (2) 2MB x 36 (2) 1MB x 36 None 32MB (2) 2MB x 36 (2) 2MB x 36 None 32MB (2) 4MB x 36 None None 40MB (2) 2MB x 36 (2) 2MB x 36 (1) 1MB x 64 40MB (2) 4MB x 36 (2) 1MB x 36 None 48MB (2) 2MB x 36 (2) 2MB x 36 (1) 2MB x 64 48MB (2) 4MB x 36 (2) 2MB x 36 None 64MB (2) 4MB x 36 (2) 4MB x 36 None 64MB (2) 8MB x 36 None None 72MB (2) 4MB x 36 (2) 4MB x 36 (1) 1MB x 64 72MB (2) 8MB x 36 (2) 1MB x 36 None 80MB (2) 4MB x 36 (2) 4MB x 36 (1) 2MB x 64 80MB (2) 8MB x 36 (2) 2MB x 36 None 96MB (2) 4MB x 36 (2) 4MB x 36 (1) 4MB x 64 96MB (2) 8MB x 36 (2) 4MB x 36 None 128MB (2) 8MB x 36 (2) 8MB x 36 None CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 256KB (2) 32K x None (1) 8K/16K/32K x 8 36 512KB (2) 32K x 256K module (1) 8K/16K/32K x 8 36 installed at SL2 VIDEO MEMORY CONFIGURATION Size Bank 0 Bank 1 1MB (2) 256KB x 16 None 2MB (2) 256KB x 16 (2) 256KB x 16 CPU SPEED SELECTION (CX 6X86) Speed Clock Multiplier JP4 JP5 S1 S2 S3 speed 120MHz 60MHz 2x 1 & 2 & Closed Closed Open 2 3 133MHz 66MHz 2x 1 & 2 & Open Closed Open 2 3 150MHz 60MHz 2.5x 1 & 2 & Closed Open Open 2 3 166MHz 66MHz 2.5x 1 & 2 & Open Open Open 2 3 200MHz 66MHz 3x 1 & 2 & Open Open Closed 2 3 Note: Designated pins should be in the closed position. Settings are with clock generator installed on U8. CPU SPEED SELECTION (AM K5) Speed Clock Multiplier JP4 JP5 S1 S2 S3 speed 75MHz 50MHz 1.5x 1 & 1 & Closed Closed Open 2 2 90MHz 60MHz 1.5x 1 & 1 & Closed Open Open 2 2 100MHz 66MHz 1.5x 1 & 1 & Open Open Open 2 2 120MHz 60MHz 2x 1 & 1 & Closed Open Open 2 2 133MHz 66MHz 2x 1 & 1 & Open Open Open 2 2 150MHz 60MHz 2.5x 1 & 2 & Closed Open Open 2 3 166MHz 66MHz 2.5x 1 & 2 & Open Open Open 2 3 Note: Designated pins should be in the closed position. Settings are with clock generator installed on U8. CPU SPEED SELECTION (PENTIUM) Speed Clock Multiplier JP4 JP5 S1 S2 S3 speed 75MHz 50MHz 1.5x 1 & 1 & Closed Closed Open 2 2 90MHz 60MHz 1.5x 1 & 1 & Closed Open Open 2 2 100MHz 66MHz 1.5x 1 & 1 & Open Open Open 2 2 120MHz 60MHz 2x 1 & 2 & Closed Open Open 2 3 133MHz 66MHz 2x 1 & 2 & Open Open Open 2 3 150MHz 60MHz 2.5x 2 & 2 & Closed Open Open 3 3 166MHz 66MHz 2.5x 2 & 2 & Open Open Open 3 3 180MHz 60MHz 3x 2 & 1 & Closed Open Open 3 2 200MHz 66MHz 3x 2 & 1 & Open Open Open 3 2 Note: Designated pins should be in the closed position. Settings are with clock generator installed on U8. CPU SPEED SELECTION (PENTIUM MMX) Speed Clock Multiplier JP4 JP5 S1 S2 S3 speed 150MHz 60MHz 2.5x 2 & 2 & Closed Open Open 3 3 166MHz 66MHz 2.5x 2 & 2 & Open Open Open 3 3 180MHz 60MHz 3x 2 & 1 & Closed Open Open 3 2 200MHz 66MHz 3x 2 & 1 & Open Open Open 3 2 Note: Designated pins should be in the closed position. Settings are with clock generator installed on U8. ALTERNATE CPU SPEED SELECTION (CX 6X86) Speed Clock Multiplier JP4 JP5 S1 S2 S3 speed 120MHz 50MHz 2x 1 & 2 & Closed Closed Closed 2 3 133MHz 55MHz 2x 1 & 2 & Closed Closed Open 2 3 150MHz 60MHz 2x 1 & 2 & Closed Open Open 2 3 166MHz 66MHz 2x 1 & 2 & Open Open Open 2 3 200MHz 66MHz 2.5x 1 & 2 & Open Closed Open 2 3 Note: Designated pins should be in the closed position. Settings are with clock generator installed on U7. ALTERNATE CPU SPEED SELECTION (AM K5) Speed Clock Multiplier JP4 JP5 S1 S2 S3 speed 75MHz 50MHz 1.5x 1 & 1 & Closed Closed Closed 2 2 90MHz 60MHz 1.5x 1 & 1 & Closed Open Open 2 2 100MHz 66MHz 1.5x 1 & 1 & Open Open Open 2 2 120MHz 60MHz 2x 1 & 1 & Closed Open Open 2 2 133MHz 66MHz 2x 1 & 1 & Open Open Open 2 2 150MHz 60MHz 2.5x 1 & 2 & Closed Open Open 2 3 166MHz 66MHz 2.5x 1 & 2 & Open Open Open 2 3 Note: Designated pins should be in the closed position. Settings are with clock generator installed on U7. ALTERNATE CPU SPEED SELECTION (PENTIUM) Speed Clock Multiplier JP4 JP5 S1 S2 S3 speed 75MHz 50MHz 1.5x 1 & 1 & Closed Closed Closed 2 2 90MHz 60MHz 1.5x 1 & 1 & Closed Open Open 2 2 100MHz 66MHz 1.5x 1 & 1 & Open Open Open 2 2 120MHz 60MHz 2x 1 & 2 & Closed Open Open 2 3 133MHz 66MHz 2x 1 & 2 & Open Open Open 2 3 150MHz 60MHz 2.5x 2 & 2 & Closed Open Open 3 3 166MHz 66MHz 2.5x 2 & 2 & Open Open Open 3 3 180MHz 60MHz 3x 2 & 1 & Closed Open Open 3 2 200MHz 66MHz 3x 2 & 1 & Open Open Open 3 2 Note: Designated pins should be in the closed position. Settings are with clock generator installed on U7. ALTERNATE CPU SPEED SELECTION (PENTIUM MMX) Speed Clock Multiplier JP4 JP5 S1 S2 S3 speed 150MHz 60MHz 2.5x 2 & 2 & Closed Open Open 3 3 166MHz 66MHz 2.5x 2 & 2 & Open Open Open 3 3 180MHz 60MHz 3x 2 & 1 & Closed Open Open 3 2 200MHz 66MHz 3x 2 & 1 & Open Open Open 3 2 Note: Designated pins should be in the closed position. Settings are with clock generator installed on U7. CPU VOLTAGE SELECTION (SINGLE) Voltage Q2 JP3 S4 S5 S6 3.4v 2 transistors Closed N/A N/A N/A installed 3.4v 1 transistor Closed Closed Closed Closed installed 3.5v 2 transistors Open N/A N/A N/A installed 3.5v 1 transistors Open Closed Closed Closed installed CPU VOLTAGE SELECTION (DUAL) Voltage Vcore Q2 JP3 S4 S5 S6 3.4v 2.9v 2 transistors Closed Open Open Open installed