ELISA TECHNOLOGY, INC. LM-486EISA (BASEBOARD) Processor 80486SX/80487SX/80486DX/80486DX2 Processor Speed 16/20/25/33/50(internal)/66(internal)MHz Chip Set OPTI Max. Onboard DRAM 128MB Cache 256KB BIOS AMI Dimensions 330mm x 225mm I/O Options CPU expansion card slot, 32-bit VESA local bus slots (2) NPU Options 4167 [Image] CONNECTIONS Purpose Location Purpose Location Speaker J1 Reset switch S1 Power LED & keylock J2 CPU expansion card S2 Turbo switch JP14 32-bit VESA local bus S3 & S4 slots Turbo LED JP15 USER CONFIGURABLE SETTINGS Function Jumper Position » Factory configured - do not alter BM1 N/A » Factory configured - do not alter BM2 N/A » Factory configured - do not alter JP1 - JP6 Open » Factory configured - do not alter JP2 Open » Factory configured - do not alter JP3 Open » Factory configured - do not alter JP4 Open » Factory configured - do not alter JP5 Open » Factory configured - do not alter JP6 Open » Bus master on baseboard (U26) JP7 pins 1 & 2 enabled closed Bus master on baseboard (U26) JP7 pins 2 & 3 disabled closed » Monitor type select monochrome JP8 Open Monitor type select color JP8 Closed DRAM CONFIGURATION Size Bank 0 Bank 1 4MB (4) 1M x 9 NONE 8MB (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 NONE 20MB (4) 1M x 9 (4) 4M x 9 32MB (4) 4M x 9 (4) 4M x 9 68MB (4) 1M x 9 (4) 16M x 9 80MB (4) 4M x 9 (4) 16M x 9 128MB (4) 16M x 9 (4) 16M x 9 CPU TYPE CONFIGURATION Type JP9 JP10 JP11 80487SX-16 Closed Closed pins 2 & 3 closed 80487SX-20 Closed Closed pins 2 & 3 closed 80486SX-16 Closed Closed pins 2 & 3 closed 80486SX-20 Closed Closed pins 2 & 3 closed 80486SX-25 Closed Open pins 1 & 2 closed 80486DX-25 Closed Open pins 1 & 2 closed 80486DX-33 Open Open pins 1 & 2 closed 80486DX2-50 Closed Open pins 1 & 2 closed 80486DX2-66 Open Open pins 1 & 2 closed [Image] USER CONFIGURABLE SETTINGS Function Jumper Position » Factory configured - do not alter JP2 pins 2 & 3 closed » Factory configured - do not alter JP4 Open » Bus master on CPU card enabled JP5 Open Bus master on CPU card disabled JP5 Closed CACHE CONFIGURATION Size Bank 0 Bank 1 TAG Dirty bit TAG TAG (U27) (U16) (U25) (U26) 64KB (4) 8K (4) 8K (1) 16K (1) 8K x NONE (1) 8K x x 8 x 8 x 1 8 8 128KB (4) 32K NONE (1) 16K (1) 8K x NONE (1) 8K x x 8 x 1 8 8 256KB (4) 32K (4) (1) 16K (1) 8K x (1) 8K x (1) 8K x x 8 32K x x 1 8 8 8 8 512KB (4) NONE (1) 64K (1) 8K x NONE (1) 32K x 128K x x 1 8 8 8 CACHE JUMPER CONFIGURATION Size JP6 JP8 JP9 JP10 JP11 JP12 JP13 64KB 2 & Open Open Open Open Open Open 3 128KB 1 & Closed Open Open Closed Open Open 2 256KB 2 & Closed Closed Open Closed Closed Open 3 512KB 1 & Closed Closed Closed Closed Closed Closed 2 Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION Type JP1 JP3 JP7 80487SX-16 pins 1 & 2, 3 & pins 1 & 2 Closed 4 closed closed 80487SX-20 pins 1 & 2, 3 & pins 1 & 2 Closed 4 closed closed 80486SX-16 pins 2 & 3 Open Closed closed 80486SX-20 pins 2 & 3 Open Closed closed 80486SX-25 pins 2 & 3 Open Open closed 80486DX-25 pins 1 & 2, 3 & pins 2 & 3 Open 4 closed closed 80486DX-33 pins 1 & 2, 3 & pins 2 & 3 Open 4 closed closed 80486DX2-50 pins 1 & 2, 3 & pins 2 & 3 Open 4 closed closed 80486DX2-66 pins 1 & 2, 3 & pins 2 & 3 Open 4 closed closed