==View or Print jumper settings using Fixedsys or New Courier fonts== MB-1420/1425/1433V rev:1-3 Motherboard - BIOS ID string ???? <--- please send yours in - 8-30 pin SIMM slots (1-32meg FPM DRAM) - 1-8bit ISA slot - 7-16bit ISA slots - no L2 CACHE support - AWARD 1992 Bios - VLSI Chipset - Supports 80487SX/80486SX/DX/DX2/Pentium Overdrive - Clock rates at 20/25/33/50/66MHz - Manufactured by: BIOSTAR Microtech International Corp ------------------------------------------------------------------------------- CONNECTIONS ------------------------------------------------------------------------------- Purpose Location Purpose Location ------------------------------------------------------------------------------- Speaker J1 Turbo switch J5 Power LED + keylock J2 5v DC ground J6 Turbo LED J3 External battery CN2 Reset switch J4 ------------------------------------------------------------------------------- USER CONFIGURABLE SETTINGS ------------------------------------------------------------------------------- Function Jumper Position ------------------------------------------------------------------------------- .Keyboard type select BTC keyboard JP1 Closed Normal operation JP1 Open .AT bus clock mode select asynchronous JP2 pins 1 + 2 closed AT bus clock mode select synchronous JP2 pins 2 + 3 closed .Monitor type select monochrome JP3 Open Monitor type select color JP3 Closed .8042 turbo control pin select pin 30 closed JP4 pins 1 + 2 closed 8042 turbo control pin select pin 23 closed JP4 pins 2 + 3 closed .CMOS memory normal operation JP5 pins 1 + 2 closed CMOS memory clear JP5 pins 3 + 4 closed .On board keyboard fuse disabled JP9 open On board keyboard fuse enabled JP9 closed ------------------------------------------------------------------------------- DRAM CONFIGURATION ------------------------------------------------------------------------------- Size Bank 0 Bank 1 ------------------------------------------------------------------------------- 1MB (4) 256K x 9 NONE 2MB (4) 256K x 9 (4) 256K x 9 4MB (4) 1M x 9 NONE 5MB (4) 256K x 9 (4) 1M x 9 8MB (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 NONE 17MB (4) 256K x 9 (4) 4M x 9 20MB (4) 1M x 9 (4) 4M x 9 32MB (4) 4M x 9 (4) 4M x 9 ------------------------------------------------------------------------------- CPU TYPE CONFIGURATION (PQFP CPU INSTALLED) ------------------------------------------------------------------------------- Type JP7 JP8 JP14 JP15 ------------------------------------------------------------------------------- 80486SX(PQFP)+upgrade to DX/DX2 1 + 2 2 + 3 1 + 2 1 + 2 80486SX(PQFP)+upgrade to Overdrive open 1 + 2 2 + 3 2 + 3 ------------------------------------------------------------------------------- CPU TYPE CONFIGURATION (PGA ONLY CPU INSTALLED) ------------------------------------------------------------------------------- Type JP7 JP8 JP14 JP15 ------------------------------------------------------------------------------- 80487SX 1-2 2-3 2-3 open 80486DX/DX2 1-2 2-3 1-2 open Note: The PQFP CPU is optional and may not be present. If there is no PQF use the above settings. ======================END OF DATA ON MB-1420/1425/1433V======================== |