SEANIX TECHNOLOGY, INC. 486LC1 Processor 80386DX/80486SX/80487SX/80486DX/80486DX2 Processor Speed 20/25/33/40/50(internal)/50/66(internal)MHz Chip Set Contaq Max. Onboard DRAM32MB Cache 64/128/256KB BIOS AMI Dimensions 330mm x 218mm I/O Options None NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location Turbo LED P1 Power LED & keylock P4 Turbo switch P2 Reset switch P5 Speaker P3 External battery P7 USER CONFIGURABLE SETTINGS Function Jumper Position » Monitor type select color JP22 Closed Monitor type select monochrome JP22 Open » CMOS memory normal operation JP23 pins 1 & 2 closed CMOS memory clear JP23 pins 2 & 3 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) 1M x 9 (4) 256K x 9 8MB (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 NONE 17MB (4) 4M x 9 (4) 256K 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 DIRTY (U1) 64KB (4) 8K x 8 (4) 8K x 8 (1) 8K x 8 (1) 8K x 8 128KB (4) 32K x 8 NONE (1) 8K x 8 (1) 8K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 (1) 32K x 8 CACHE JUMPER CONFIGURATION Size JP13 JP14 JP15 JP16 JP19 JP20 64KB Open Open Open Open 2 & 3 Open 128KB Closed Open Closed Open 1 & 2 2 & 3 256KB Closed Closed Closed Closed 2 & 3 1 & 2 Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION Type JP1 JP2 JP3 JP4 JP5 JP6 JP7 80386DX Open Open Open Open Open Open Open CX486DLC Closed Closed Closed Open Open Open Open 80486SX Open Open Open Open Open 2 & 1 & 2 3 80487SX Open Open Open Closed Closed 2 & 1 & 2 3 80486DX Open Open Open Open Closed 2 & 2 & 3 3 80486DX2 Open Open Open Open Closed 2 & 2 & 3 3 Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION (CON’T) Type JP8 JP9 JP10 JP17 JP18 JP21 JP24 80386DX Closed Open Open 2 & 3 2 & 3 2 & 3 1 & 2 CX486DLC Closed Open Open 2 & 3 2 & 3 2 & 3 N/A 80486SX Open 1 & 2 Closed 1 & 2 1 & 2 1 & 2 2 & 3 80487SX Open 1 & 2 Closed 1 & 2 1 & 2 1 & 2 2 & 3 80486DX Open 1 & 2 Closed 1 & 2 1 & 2 1 & 2 2 & 3 80486DX2 Open 1 & 2 Closed 1 & 2 1 & 2 1 & 2 2 & 3 Note: Pins designated should be in the closed position. JP24 may not be present on all boards. The location is unidentified. 80386 ATCLK CONFIGURATION ATCLK JP11 JP12 4 Closed Closed 6 Closed Open 8 Open Closed 10 Open Open 80486 ATCLK CONFIGURATION ATCLK JP11 JP12 3 Closed Open 4 Open Closed 5 Open Open 6 Closed Closed