BIOSTAR MICROTECH INTERNATIONAL, INC. MB-1500/1575/1590PCT Processor Pentium Processor Speed 75/90/100MHz Chip Set Unidentified Max. Onboard DRAM 128MB Cache 256/512/1024/2048KB BIOS Award Dimensions 330mm x 218mm I/O Options 32-bit VESA local bus slots (2), 32-bit PCI slots (3) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location External battery JP8 Turbo switch JP15 (pins 14 - 16) Speaker JP15 (pins 1 - +5v ground JP15 (pins 17 - 4) 18) Power LED & JP15 (pins 5 - Chassis fan JP32 keylock 9) power Turbo LED JP15 (pins 10 32-bit VESA PC1 - PC3 - 11) local bus slots Reset switch JP15 (pins 12 32-bit PCI bus SL1 & SL2 - 13) slots USER CONFIGURABLE SETTINGS Function Jumper Position » Host data wait state select 1 JP4 Open wait state Host data wait state select 0 JP4 Closed wait states » Back to back I/O delay select 3 JP6 Open wait states Back to back I/O delay select 0 JP6 Closed wait states » CMOS memory normal operation JP8 pins 2 & 3 closed CMOS memory clear JP8 pins 3 & 4 closed Battery type select external JP8 Closed » Monitor type select color JP14 Open Monitor type select monochrome JP14 Closed » Factory configured - do not JP19 Open alter » Buffer type select stand alone JP26 Open Buffer type select loaded JP26 Closed component » Factory configured - do not JP31 Open alter » Stop clock select enabled JP33 Open Stop clock select disabled JP33 Closed » Bus/core ratio select 2/3 ratio JP34 Open Bus/core ratio select 1/2 ratio JP34 Closed » Factory configured - do not JP35 Open alter DRAM CONFIGURATION Size Bank 0 Bank 1 2MB (2) 256K x 36 NONE 4MB (2) 512K x 36 NONE 4MB (2) 256K x 36 (2) 256K x 36 6MB (2) 256K x 36 (2) 512K x 36 8MB (2) 1M x 36 NONE 8MB (2) 512K x 36 (2) 512K x 36 10MB (2) 256K x 36 (2) 1M x 36 12MB (2) 512K x 36 (2) 1M x 36 16MB (2) 2M x 36 NONE 16MB (2) 1M x 36 (2) 1M x 36 18MB (2) 256K x 36 (2) 2M x 36 20MB (2) 512K x 36 (2) 2M x 36 24MB (2) 1M x 36 (2) 2M x 36 32MB (2) 4M x 36 NONE 32MB (2) 2M x 36 (2) 2M x 36 34MB (2) 256K x 36 (2) 4M x 36 36MB (2) 512K x 36 (2) 4M x 36 40MB (2) 1M x 36 (2) 4M x 36 48MB (2) 2M x 36 (2) 4M x 36 64MB (2) 8M x 36 NONE 66MB (2) 256K x 36 (2) 8M x 36 68MB (2) 512K x 36 (2) 8M x 36 72MB (2) 1M x 36 (2) 8M x 36 DRAM CONFIGURATION (CON’T) Size Bank 0 Bank 1 80MB (2) 2M x 36 (2) 8M x 36 96MB (2) 8M x 36 (2) 4M x 36 96MB (2) 4M x 36 (2) 8M x 36 128MB (2) 8M x 36 (2) 8M x 36 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 256KB (8) 32K x 8 NONE (1) 8K x 8 512KB (8) 32K x 8 (8) 32K x 8 (1) 32K x 8 512KB (8) 64K x 8 NONE (1) 32K x 8 1MB (8) 64K x 8 (8) 64K x 8 (1) 32K x 8 1MB (8) 128K x 8 NONE (1) 32K x 8 2MB (8) 128K x 8 (8) 128K x 8 (1) 64K x 8 CACHE JUMPER CONFIGURATION Size JP20 JP21 JP22 JP23 JP28 JP29 JP30 256KB Open Open Open Open 1 & 2 Open 1 & 2 512KB Open Open Closed Open 2 & 3 Open 2 & 3 512KB Open Open Closed Open 1 & 2 2 & 3 1 & 2 1MB Open Closed Closed Open 2 & 3 1 & 2 2 & 3 1MB Open Closed Closed 2 & 3 1 & 2 2 & 3 1 & 2 2MB Closed Closed Closed 1 & 2 2 & 3 1 & 2 2 & 3 Note: Pins designated should be in the closed position. CACHE VOLTAGE CONFIGURATION Voltage JP17 JP18 3v pins 3 & 5, 4 & 6 pins 3 & 5, 4 & 6 closed closed 5v pins 1 & 3, 2 & 4 pins 1 & 3, 2 & 4 closed closed Note: JP17 = Bank 0 and JP18 = Bank 1. CPU SPEED CONFIGURATION Speed JP11 JP12 JP13 75MHz Closed Open Open 90MHz Open Closed Open 100MHz Closed Open Closed VESA WAIT STATE CONFIGURATION Wait states JP5 0 wait states Open 1 wait state Closed BUS SPEED CONFIGURATION CPU speed JP3 CPU clock/2 Open = 50MHz Closed AT CLOCK CONFIGURATION Clock JP7 JP9 LCLK/3 Open Closed LCLK/4 Closed Open PCI IRQ CONFIGURATION IRQ JP37 JP38 IRQ14 pins 2 & 3 closed pins 1 & 2 closed IRQ15 pins 1 & 2 closed pins 2 & 3 closed DRIVE ENABLE CONFIGURATION Speed JP25 JP27 50MHz Open Open 60MHz Closed Closed 66MHz Closed Closed FLASH MEMORY CONFIGURATION Setting JP24 EPROM Open 5v flash pins 2 & 3 closed 12v flash pins 1 & 2 closed