BIOSTAR MICROTECH INTERNATIONAL CORPORATION MB-8500 TUR (VER. 2.1) Device Type Mainboard Processor CX 6X86/AM K5/Pentium/Pentium MMX Processor Speed 75/90/100/120/133/150/166/180/200MHz Chip Set Unidentified Video Chip Set None Maximum Onboard 128MB (EDO & SDRAM supported) Memory Maximum Video None Memory Cache 256/512KB BIOS AMI Dimensions 285mm x 220mm I/O Options 32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), cache slot, IR connector, USB connector NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location PS/2 mouse J1 Speaker J16/pins 1 - 4 interface Floppy drive J7 Power LED & J16/pins 5 - 9 interface keylock IDE interface 1 J8 Turbo LED J16/pins 10 & 11 USB connector J9 Reset switch J16/pins 12 & 13 Serial port 1 J10 Green PC LED J16/pins 14 & 15 Serial port 2 J11 Green PC J16/pins 17 & connector 18 Parallel port J12 IDE interface LED J16/pins 20 & 21 IDE interface 2 J13 Turbo switch J16/pins 23 & 24 Chassis fan power J14 32-bit PCI slots PC1 – PC3 IR connector J15 Cache slot SL1 USER CONFIGURABLE SETTINGS Function Label Position » Factory configured - do not J6 Unidentified alter » Factory configured - do not JP4 Unidentified alter » Factory configured - do not JP5 Unidentified alter » Factory configured - do not JP9 Unidentified alter » Factory configured - do not JP10 Unidentified alter » CMOS memory normal operation JP12 Open CMOS memory clear JP12 Closed Flash BIOS select 5v JP13 Pins 1 & 2 closed Flash BIOS select 12v JP13 Pins 2 & 3 closed Flash BIOS select 0v or EPROM JP13 Open SIMM 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) 4M x 36 (2) 2M x 36 64MB (2) 8M x 36 None 64MB (2) 4M x 36 (2) 4M x 36 SIMM CONFIGURATION (CON’T) Size Bank 0 Bank 1 72MB (2) 8M x 36 (2) 1M x 36 80MB (2) 8M x 36 (2) 2M x 36 96MB (2) 8M x 36 (2) 4M x 36 128MB (2) 8M x 36 (2) 8M x 36 Note: Board accepts EDO memory. DIMM CONFIGURATION Size Bank 2 8MB (1) 1M x 64 16MB (1) 2M x 64 32MB (1) 4M x 64 CACHE CONFIGURATION Size Bank 0 SL1 TAG 256KB (2) 32K x 32 Not installed Unidentified 512KB (2) 32K x 32 256KB module Unidentified installed CACHE JUMPER CONFIGURATION Size JP11 256KB Open 512KB Closed CPU SPEED SELECTION (CX 6X86) CPU Clock Multiplier JP1 JP2 JP6/ JP6/ speed speed pins 1 pins 3 & & 2 4 120MHz 50MHz 2x Open Open Closed Closed 133MHz 55MHz 2x Open Open Open Open 150MHz 60MHz 2x Open Open Closed Open 166MHz 66MHz 2x Open Open Open Closed CPU SPEED SELECTION (AM K5) CPU Clock Multiplier JP1 JP2 JP6/ JP6/ speed speed pins 1 pins 3 & & 2 4 75MHz 66MHz 1x Closed Open Open Closed 75MHz 50MHz 1.5x Open Open Closed Closed 90MHz 55MHz 1.5x Open Open Open Open 90MHz 60MHz 1.5x Open Open Closed Open 100MHz 66MHz 1.5x Open Open Open Closed CPU SPEED SELECTION (INTEL) CPU Clock Multiplier JP1 JP2 JP6/ JP6/ speed speed pins 1 pins 3 & 2 & 4 75MHz 50MHz 1.5x Open Open Closed Closed 90MHz 60MHz 1.5x Open Open Closed Open 100MHz 66MHz 1.5x Open Open Open Closed 120MHz 60MHz 2x Closed Open Closed Open 133MHz 66MHz 2x Closed Open Open Closed 150MHz 60MHz 2.5x Closed Closed Closed Open 166MHz 66MHz 2.5x Closed Closed Open Closed 180MHz 60MHz 3x Open Closed Closed Open 200MHz 66MHz 3x Open Closed Open Closed CPU SPEED SELECTION (INTEL MMX) CPU Clock Multiplier JP1 JP2 JP6/ JP6/ speed speed pins 1 pins 3 & 2 & 4 166MHz 66MHz 2.5x Closed Closed Open Closed 180MHz 60MHz 3x Open Closed Closed Open 200MHz 66MHz 3x Open Closed Open Closed CPU TYPE SELECTION Type JP7 JP14 JP15 AMD Open Pins 1 & 2 Pins 1 & 2, 3 & closed 4 closed Cyrix Open Pins 1 & 2 Pins 1 & 2, 3 & closed 4 closed P54C/CQS/CT Open Pins 1 & 2 Pins 1 & 2, 3 & closed 4 closed P55C/CT Closed Pins 2 & 3 Open closed CPU VOLTAGE SELECTION Voltage JP8 3.4v Closed 3.5v Open