GEMLIGHT COMPUTER, LTD. GMB-P56SPC (VER. 1.11) Processor CX M1/AM K5/Pentium Processor Speed 75/90/100/120/133/150/166/180/200MHz Chip Set SIS Video Chip Set None Maximum Onboard 512MB (EDO supported) Memory Maximum Video None Memory Cache 256KB BIOS AMI/Award Dimensions 270mm x 220mm I/O Options 32-bit PCI slots (4), CD-ROM connectors (2), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), VGA feature connector, VGA interface, IR connectors (2), game interface NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location Reset switch J1 IDE interface 1 J17 Green PC LED J2 IDE interface 2 J18 Green PC connector J3 Serial port 1 J19 Speaker J4 Serial port 2 J20 IDE interface LED J5 Audio expansion J21 interface Power LED & keylock J6 Game interface J23 IR connector J12 PS/2 mouse J28 interface CD-ROM connector J13 VGA feature J29 (Panasonic/Mitsumi) connector CD-ROM connector (Sony) J14 IR connector J33 Floppy drive interface J15 32-bit PCI PC1 - PC4 slots Parallel port J16 Note: J21 may be a 2 x 8 connector on some board revisions. USER CONFIGURABLE SETTINGS Function Label Position » CMOS memory normal operation JP0 Pins 1 & 2 closed CMOS memory clear JP0 Pins 2 & 3 closed Flash BIOS voltage select 12v JP5 Pins 1 & 2 closed Flash BIOS voltage select 5v JP5 Pins 2 & 3 closed Linear burst mode enabled (CX M1 JP7 Closed only) Linear burst mode disabled (all JP7 Open other CPU types) On board sound chip enabled JP13 Closed On board sound chip disabled JP13 Open DRAM CONFIGURATION Size Bank 0 Bank 1 8MB (2) 1M x 36 None 16MB (2) 2M x 36 None 16MB (2) 1M x 36 (2) 1M x 36 24MB (2) 2M x 36 (2) 1M x 36 32MB (2) 4M x 36 None 32MB (2) 2M x 36 (2) 2M x 36 40MB (2) 4M x 36 (2) 1M x 36 48MB (2) 2M x 36 (2) 4M x 36 64MB (2) 8M x 36 None 64MB (2) 4M x 36 (2) 4M x 36 40MB (2) 4M x 36 (2) 1M x 36 48MB (2) 2M x 36 (2) 4M x 36 64MB (2) 8M x 36 None 64MB (2) 4M x 36 (2) 4M x 36 72MB (2) 8M x 36 (2) 1M x 36 80MB (2) 2M x 36 (2) 8M x 36 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 136MB (2) 16M x 36 (2) 1M x 36 144MB (2) 16M x 36 (2) 2M x 36 160MB (2) 16M x 36 (2) 4M x 36 192MB (2) 16M x 36 (2) 8M x 36 256MB (2) 16M x 36 (2) 16M x 36 256MB (2) 32M x 36 None 264MB (2) 32M x 36 (2) 1M x 36 272MB (2) 32M x 36 (2) 2M x 36 288MB (2) 32M x 36 (2) 4M x 36 320MB (2) 32M x 36 (2) 8M x 36 384MB (2) 32M x 36 (2) 16M x 36 512MB (2) 32M x 36 (2) 32M x 36 Note: Board accepts EDO memory. Board also accepts x 32 SIMMs. Banks are interchangeable. CACHE CONFIGURATION Size Bank 0 TAG 256KB (2) 32K x 32 (1) 8K16K/32K x 8 CPU SPEED SELECTION (CYRIX) CPU Clock Multiplier JP2 JP3 S4 S5 S6 speed speed 120MHz 50MHz 2x 1 & 2 & Closed Closed Open 2 3 133MHz 55MHz 2x 1 & 2 & Open Open Open 2 3 150MHz 60MHz 2x 1 & 2 & Closed Open Open 2 3 166MHz 66MHz 3x 1 & 2 & Open Closed Open 2 3 200MHz 66MHz 3x 1 & 2 & Open Open Closed 2 3 Note: Pins designated should be in the closed position. CPU SPEED SELECTION (AMD) CPU Clock Multiplier JP2 JP3 S4 S5 S6 speed 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 Closed Open 2 2 120MHz 60MHz 1.5x 1 & 1 & Closed Open Open 2 2 133MHz 66MHz 2x 1 & 1 & Open Closed Open 2 2 150MHz 66MHz 2x 1 & 2 & Closed Open Open 2 3 166MHz 66MHz 2x 1 & 2 & Open Closed Open 2 3 Note: Pins designated should be in the closed position. CPU SPEED SELECTION (INTEL) CPU Clock Multiplier JP2 JP3 S4 S5 S6 speed 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 Closed Open 2 2 120MHz 60MHz 2x 1 & 2 & Closed Open Open 2 3 133MHz 66MHz 2x 1 & 2 & Open Closed Open 2 3 150MHz 60MHz 2.5x 2 & 2 & Closed Open Open 3 3 166MHz 66MHz 2.5x 2 & 2 & Open Closed Open 3 3 180MHz 60MHz 3x 2 & 1 & Closed Open Open 3 2 200MHz 66MHz 3x 2 & 1 & Open Closed Open 3 2 Note: Pins designated should be in the closed position. CPU VOLTAGE SELECTION Voltage V core JP1 S1 S2 S3 3.4v N/A Closed Closed Closed Closed (single) 3.4v (dual) 2.9v Closed Open Open Open 3.5v N/A Open Closed Closed Closed (single)