==View or Print jumper settings using Fixedsys or New Courier fonts== M-423 486 ISA Motherboard - BIOS ID String ???????????? <---- please send yours in - AMIBIOS ID String 40-0300-001437-00101111-121291-PC-CHIPS-8 - 8-30 pin SIMM slots (1-32meg FPM DRAM) - 2-32bit EISA slots - 4-16bit ISA slots - 1-8bit ISA slot - 32k-256k CACHE support in 8-28pin sockets + 1 TAG RAM socket - AMI/AWARD Bios. - PC Chips 16329/8 chipset - Weitek 4167 co-processor support. - One PGA 239pin CPU socket which supports these processors: INTEL 80486SX/SX2,80486DX/DX2 - Supports speeds of 20/25/33/40/50 MHz. - M423 Manufacturer by ILON USA Inc. ------------------------------------------------------------------------ CONNECTIONS ------------------------------------------------------------------------ Purpose Location Purpose Location ------------------------------------------------------------------------ External battery JP1 Power LED + keylock JP20 Reset switch JP17 Speaker JP21 Turbo LED JP18 Weitek 4167 connector W1 Turbo switch JP19 ------------------------------------------------------------------------ USER CONFIGURABLE SETTINGS ------------------------------------------------------------------------ Function Jumper Position ------------------------------------------------------------------------ * Monitor type color JP2 Closed Monitor type monochrome JP2 Open * Gate type fast A20 JP3 1 + 2 Gate type keyboard A20 JP3 2 + 3 ------------------------------------------------------------------------ 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 20MB (4) 1M x 9 (4) 4M x 9 20MB (4) 4M x 9 (4) 1M x 9 32MB (4) 4M x 9 (4) 4M x 9 ------------------------------------------------------------------------ CACHE CONFIGURATION ------------------------------------------------------------------------ Size Bank 0 Bank 1 TAG ------------------------------------------------------------------------ 32KB (4) 8K x 8 NONE (1) 8K x 8 64KB (4) 8K x 8 (4) 8K x 8 (1) 8K x 8 128KB (4) 32K x 8 NONE (1) 8K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 ------------------------------------------------------------------------ CACHE JUMPER WRITE-THROUGH CONFIGURATION ------------------------------------------------------------------------ Size JP4 JP6 JP11 JP12 JP13 ------------------------------------------------------------------------ 32KB 2 + 3 2 + 3 2 + 3 2 + 3 2 + 3 64KB 1 + 2 2 + 3 1 + 2 1 + 2 2 + 3 128KB 1 + 2 1 + 2 1 + 2 1 + 2 1 + 2 256KB 2 + 3 1 + 2 1 + 2 1 + 2 1 + 2 ------------------------------------------------------------------------ CACHE JUMPER WRITE-BACK CONFIGURATION ------------------------------------------------------------------------ Size JP7 JP8 JP9 JP10 ------------------------------------------------------------------------ 32KB 1 + 2 2 + 3 2 + 3 2 + 3 64KB 2 + 3 2 + 3 2 + 3 1 + 2 128KB 2 + 3 2 + 3 1 + 2 2 + 3 256KB 2 + 3 1 + 2 2 + 3 2 + 3 ------------------------------------------------------------------------ CPU TYPE CONFIGURATION ------------------------------------------------------------------------ Type JP14 JP15 JP16 ------------------------------------------------------------------------ 80486SX 2 + 3 Open 2 + 3 closed 80487SX 1 + 2 2 + 3 1 + 2, 3 + 4 80486DX 1 + 2 1 + 2 1 + 2, 3 + 4 80486DX2 1 + 2 2 + 3 1 + 2, 3 + 4 ------------------------------------------------------------------------ CPU SPEED CONFIGURATION ------------------------------------------------------------------------ Speed JP5 ------------------------------------------------------------------------ 20MHz 1 + 2 closed 25MHz 2 + 3 closed 33MHz 1 + 2 closed 50iMHz 2 + 3 closed ========================END OF DATA FOR M423============================ |