EFA CORPORATION ECA 34M50HL Processor 80386DX/80486DX/80486DX2 Processor Speed 16/20/25/33/40/50(internal)/50/66(internal)MHz Chip Set UMC Max. Onboard DRAM 32MB Cache 64/128/256KB BIOS AMI Dimensions 254mm x 218mm I/O Options 32-bit VESA local bus slot NPU Options 80387 [Image] CONNECTIONS Purpose Location Purpose Location External battery J1 Power LED & keylock J10 Speaker J7 Turbo switch J11 Turbo LED J8 32-bit VESA local bus S1 slot Reset switch J9 USER CONFIGURABLE SETTINGS Function Jumper Position » BIOS type select 27256/27512 J2 pins 2 & 3 closed BIOS type select 271024 J2 pins 1 & 2 closed » Battery type select internal W1 Closed Battery type select external W1 Open » Normal operation W2 Open Self test W2 Closed » Monitor type select monochrome W3 Closed Monitor type select color W3 Open » CMOS memory normal operations W12 pins 1 & 2 closed CMOS memory clear W12 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) 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 32MB (4) 4M x 9 (4) 4M x 9 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG (U19 & U36) 64KB (4) 8K x 8 (4) 8K x 8 (2) 8K x 8 128KB (4) 32K x 8 NONE (2) 32K x 8 256KB (4) 32K x 8 (4) 32K x 8 (2) 32K x 8 CACHE JUMPER CONFIGURATION Size W4 W5 W6 W7 W8 W9 W10 W11 64KB 1 & Open 1 & 1 & Open Open Open Open 2 2 2 128KB 2 & 1 & 2 2 & 1 & Closed Open Closed Open 3 3 2 256KB 1 & 2 & 3 2 & 2 & Closed Closed Closed Closed 2 3 3 Note: Pins designated should be in the closed position. CPU TYPE CONFIGURATION Type J6 J13 SW2/1 SW2/2 SW2/3 SW2/4 80386DX 2 & 3 1 & 2 On On On On 80486SX-20 1 & 2 1 & 2 Off Off Off Off 80486SX-25 1 & 2 1 & 2 Off Off Off Off 80487SX 1 & 2 1 & 2 Off Off Off Off 80486DX 1 & 2 2 & 3 Off Off Off Off 80486DX2 1 & 2 2 & 3 Off Off Off Off Note:Pins designated should be in the closed position CPU TYPE CONFIGURATION (CON’T) Type SW2/5 SW2/6 SW2/7 SW3/1 SW3/2 SW3/3 SW3/4 80386DX On On On On On Off Off 80486SX-20 Off Off Off Off Off On On 80486SX-25 Off Off Off Off Off On Off 80487SX Off Off Off On On Off Off 80486DX Off Off Off On On Off Off 80486DX2 Off Off Off On On Off Off Note:Pins designated should be in the closed position CPU TYPE & SPEED CONFIGURATION Type Speed SW1/1 SW1/2 SW1/3 SW1/4 80486DX2-66 33MHz On Off On On 80486DX2-50 25MHz On On Off On ODP486SX-66 33MHz On Off On On ODP486SX-50 25MHz On On Off On 80486DX-50 50MHz Off Off Off Off 80486DX-33 33MHz Off Off Off On 80486DX-25 25MHz On On Off On 80487SX-25 25MHz On On Off On 80487SX-20 40MHz Off Off On Off 80486SX-25 25MHz On On Off On 80486SX-20 40MHz Off Off On Off 80386DX-33 66MHz Off Off Off On 80386DX-20 44MHz On Off Off Off VESA WAIT STATE CONFIGURATION Wait state J3 J4 J5 Auto detect Closed Open Open 0 Open Open Open 1 Open Closed Open