DASH COMPUTER, INC. DC3486 VESA Processor 80386DX/CX486DLC/80486SX/80486DX/80486DX2 Processor Speed 25/33/40/50(internal)/50/66(internal)MHz Chip Set OPTI Max. Onboard DRAM 32MB Cache 64/128/256KB BIOS AMI Dimensions 311mm x 226mm I/O Options 32-bit VESA card slot (2) NPU Options 80387DX [Image] CONNECTIONS Purpose Location Purpose Location External battery J1 Turbo LED JP32 Power LED & keylock J19 Reset switch SW1 Speaker J20 32-bit VESA local S1 & S2 bus slots (2) Turbo switch JP31 USER CONFIGURABLE SETTINGS Function Jumper Position » CMOS memory normal operation JP1 pins 2 & 3 closed CMOS memory clear JP1 pins 1 & 2 closed » Factory configured - do not alter JP2 open AT Bus speed select CLK/5 with JP3 open 80386 CPU AT Bus speed select CLK/4 with JP3 closed 80386 CPU » Monitor type select color JP4 open Monitor type select monochrome JP4 closed CACHE JUMPER CONFIGURATION Size JP10 JP11 JP13 JP15 64KB pins 2 & 3 open open open closed 128KB pins 1 & 2 closed closed open closed 256KB pins 2 & 3 closed closed closed closed CACHE CONFIGURATION Size Cache Location TAG (U39) TAG (U40) 64KB (8) 8K x 8 Banks 0 & 1 (1) 8K x 8 NONE 128KB (4) 32K x 8 Bank 0 (1) 8K x 8 (1) 8K x 8 256KB (8) 32K x 8 Banks 0 & 1 (1) 8K x 8 (1) 8K x 8 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 8MB (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 NONE 20MB (4) 4M x 9 (4) 1M x 9 32MB (4) 4M x 9 (4) 4M x 9 SLOTS 3 & 4 BUS CONFIGURATION Bus Type JP8 & 9 JP14 & JP23 JP19 JP21 JP24 16 & 27 » VESA open open pins open open open 1 & 2 AT closed closed pins closed closed closed 2 & 3 Note:Slots 3 & 4 must both be configured as either 16-bit or 32-bit. Note:Pins designated should be in the closed position. CONFIGURATION FOR 80486DX & 80486DX2 CPU Jumper Postition 25MHz 33MHz 50iMHz 50MHz 66iMHz JP5 pins 1 & 2 pins 1 pins 1 pins 1 pins 1 pins 1 & & 2 & 2 & 2 & 2 2 JP6 open open open open open open JP7 open open open open open open JP12 closed closed closed closed closed closed JP17 closed closed closed closed closed closed JP18 open open open open open open JP22 N/A open open open closed open JP25 N/A pins 2 pins 2 pins 2 pins 1 pins 2 & & 3 & 3 & 3 & 2 3 JP26 N/A open open open closed open JP28 N/A closed open closed closed open JP29 N/A open closed open open closed JP30 N/A open open open open open JP33 N/A pins 2 pins 2 pins 2 pins 1 pins 2 & & 3 & 3 & 3 & 2 3 JP34 N/A closed closed closed closed closed JP35 pins 1 & 2 pins 1 pins 1 pins 1 pins 1 pins 1 & & 2 & 2 & 2 & 2 2 JP36 closed closed closed closed closed closed JP37 pins 1 & 2 pins 1 pins 1 pins 1 pins 1 pins 1 & & 2 & 2 & 2 & 2 2 Note:Pins designated should be in the closed position. CONFIGURATION FOR 80486SX CPU Jumper Position 25MHz 33MHz JP5 pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed JP6 open open open JP7 open open open JP12 closed closed closed JP17 see note 1 see note 1 see note 1 JP18 open open open JP22 N/A open open JP25 N/A pins 2 & 3 pins 2 & 3 closed closed JP26 N/A open open JP28 N/A closed closed JP29 N/A open closed JP30 N/A open open JP33 N/A pins 2 & 3 pins 2 & 3 closed closed JP34 N/A closed closed JP35 open open open JP36 open open open JP37 pins 2 & 3 pins 2 & 3 pins 2 & 3 closed closed closed Note 1 :Jumper JP17 should be closed when a PGA cpu is installed, open for PQFP. CONFIGURATION FOR 80386DX & CX486DLC CPU Jumper Position 33MHz 40MHz JP5 pins 2 & 3 pins 2 & 3 pins 2 & 3 closed closed closed JP6 see note 1 see note 1 see note 1 JP7 open open open JP12 open open open JP17 open open open JP18 see note 2 see note 2 see note 2 JP22 N/A closed open JP25 N/A pins 2 & 3 pins 2 & 3 closed closed JP26 N/A open closed JP28 N/A open open JP29 N/A closed open JP30 N/A closed closed JP33 N/A pins 1 & 2 pins 1 & 2 closed closed JP34 N/A open open JP35 open open open JP36 open open open JP37 pins 2 & 3 pins 2 & 3 pins 2 & 3 closed closed closed Note 1 :Jumper JP6 should be closed when a CX486DLC is installed, open for 80386DX. Note 2 :Jumper JP18 should be closed when a PGA cpu is installed, open for PQFP.