GEMLIGHT COMPUTER, LTD. GMB-P55IPS (VER. 1.50B) Processor CX 6X86/AM K5/Pentium Processor Speed 75/90/100/120/133/150/166/200MHz Chip Set Intel 440HX Video Chip Set None Maximum Onboard 256MB (EDO supported) Memory Maximum Video Memory None Cache 256/512KB BIOS Award Dimensions 265mm x 220mm I/O Options 32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), IR connector, USB connectors (2) [Image] CONNECTIONS Purpose Location Purpose Location IR connector J1 Parallel port J11 Power LED & keylock J2 Serial port 2 J12 Speaker J4 Serial port 1 J13 IDE interface LED J5 PS/2 mouse interface J16 IDE interface 1 J6 PS/2 mouse port J18 IDE interface 2 J7 Turbo LED J19 Floppy drive interface J8 Green PC connector JP8 USB connector 1 J9 Reset switch JP11 USB connector 2 J10 32-bit PCI slots PC1 - PC4 USER CONFIGURABLE SETTINGS Function Label Position » Factory configured - do not J3 Unidentified alter » CMOS memory normal operation JP13 Open CMOS memory clear JP13 Closed Flash BIOS voltage select 12v JP20 Pins 1 & 2 closed Flash BIOS voltage select 5v JP20 Pins 2 & 3 closed DRAM CONFIGURATION Size Bank 0 Bank 1 4MB (2) 512K x 36 None 4MB (2) 256K x 36 (2) 256K x 36 6MB (2) 512K x 36 (2) 256K x 36 8MB (2) 1M x 36 None 8MB (2) 512K x 36 (2) 512K x 36 10MB (2) 1M x 36 (2) 256K x 36 12MB (2) 1M x 36 (2) 512K x 36 16MB (2) 2M x 36 None 16MB (2) 1M x 36 (2) 1M x 36 18MB (2) 2M x 36 (2) 256K x 36 20MB (2) 2M x 36 (2) 512K 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 34MB (2) 4M x 36 (2) 256K x 36 36MB (2) 4M x 36 (2) 512K x 36 40MB (2) 1M x 36 (2) 4M x 36 48MB (2) 4M x 36 (2) 2M x 36 64MB (2) 8M x 36 None 64MB (2) 4M x 36 (2) 4M x 36 66MB (2) 8M x 36 (2) 256K x 36 68MB (2) 512K x 36 (2) 8M x 36 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 72MB (2) 8M x 36 (2) 1M x 36 80MB (2) 2M x 36 (2) 8M x 36 96MB (2) 8M x 36 (2) 4M x 36 128MB (2) 16M x 36 None 128MB (2) 8M x 36 (2) 8M x 36 130MB (2) 16M x 36 (2) 256K x 36 132MB (2) 16M x 36 (2) 512K x 36 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 Note: Board accepts EDO memory. Banks are interchangeable. CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 256KB (2) 32K x 32 None (1) 8K x 8 512KB (2) 32K x 32 (2) 32K x 32 (1) 16K/32K x 8 512KB (2) 64K x 32 None (1) 16K/32K x 8 Note: The location of Banks 0 & 1 are unidentified. CPU SPEED SELECTION (CX 6X86) CPU speed Clock Multiplier JP1 JP2 JP18 speed 120MHz 50MHz 2x Closed Open 1 & 2, 3 & 4 133MHz 55MHz 2x Closed Open Open 150MHz 60MHz 2x Closed Open 3 & 4 166MHz 66MHz 2x Closed Open 1 & 2 200MHz 66MHz 3x Closed Open 5 & 6 Note: Pins designated should be in the closed position. CPU SPEED SELECTION (AM K5) CPU speed Clock Multiplier JP1 JP2 JP18 speed 75MHz 50MHz 1.5x Open Open 1 & 2, 3 & 4 90MHz 60MHz 1.5x Open Open 3 & 4 100MHz 66MHz 1.5x Open Open 1 & 2 120MHz 60MHz 1.5x Open Open 3 & 4 133MHz 66MHz 1.5x Open Open 1 & 2 150MHz 66MHz 1.5x Open Open 1 & 2 166MHz 66MHz 2.5x Closed Closed 1 & 2 Note: Pins designated should be in the closed position. CPU SPEED SELECTION (INTEL) CPU speed Clock Multiplier JP1 JP2 JP18 speed 75MHz 50MHz 1.5x Open Open 1 & 2, 3 & 4 90MHz 60MHz 1.5x Open Open 3 & 4 100MHz 66MHz 1.5x Open Open 1 & 2 120MHz 60MHz 2x Closed Open 3 & 4 133MHz 66MHz 2x Closed Open 1 & 2 150MHz 60MHz 2.5x Closed Closed 3 & 4 166MHz 66MHz 2.5x Closed Closed 1 & 2 200MHz 66MHz 3x Open Closed 1 & 2 Note: Pins designated should be in the closed position. CPU VOLTAGE SELECTION (SINGLE) Voltage JP9 JP10 JP14 3.4v Open Closed 1 & 2, 3 & 4, 5 & 6, 7 & 8 3.5v Closed Open 1 & 2, 3 & 4, 5 & 6, 7 & 8 Note: Pins designated should be in the closed position. CPU VOLTAGE SELECTION (DUAL) V I/O V core JP9 JP10 JP14 3.4v 2.8v Open Closed Open