DTK COMPUTER, INC. FEAT-5031 Processor 80486SX/80487SX/80486DX/80486DX2 Processor Speed 16/20/25/33/50(internal)/50MHz Chip Set Symphony Max. Onboard DRAM 32MB Cache 64/256KB BIOS AMI/DTK Dimensions 330mm x 218mm I/O Options None NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location Reset switch J1 Turbo LED J4 Turbo switch J2 Power LED & keylock J5 Speaker J3 USER CONFIGURABLE SETTINGS Function Jumper Position Turbo enabled J2 Open Turbo disabled J2 Pins 1 & 2 closed Turbo controlled by keyboard J2 Pins 2 & 3 CTRL, ALT, - closed » Cache wait state select 0 wait J9 Closed states » Cache wait state select 1 wait J9 Open state » Monitor type select monochrome J13 Pins 1 & 2 closed Monitor type select color J13 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 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) 256K x 9 (4) 4M x 9 17MB (4) 4M x 9 (4) 256K x 9 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 TAG 64KB (8) 8K x 8 (1) 8K x 8 256KB (8) 32K x 8 (1) 32K x 8 CACHE JUMPER CONFIGURATION Size J6 J7 J8 64KB Pins 1 & 2 Pins 1 & 2 Pins 1 & 2 closed closed closed 256KB Pins 2 & 3 Pins 2 & 3 Pins 2 & 3 closed closed closed CPU TYPE CONFIGURATION Type J10 J11 J12 80486SX Open Pins 2 & 3 Open closed 80487SX N/A N/A N/A 80486DX Closed Pins 1 & 2 Closed closed 80486DX2 Closed Pins 1 & 2 Closed closed CPU SPEED CONFIGURATION Speed J14 J15 J16 J17 J18 16MHz Closed Open Open Pins 1 & 2 Open closed 20MHz Closed Open Open Pins 1 & 2 Open closed 25MHz Closed Open Open Pins 1 & 2 Open closed 33MHz Closed Open Open Pins 1 & 2 Open closed 50iMHz Closed Open Open Pins 1 & 2 Closed closed 50MHz (A) Closed Closed Closed Pins 2 & 3 Closed closed 50MHz (B) Open Closed Open Pins 2 & 3 Closed closed Note: (A) 20ns cache installed. (B) 15ns cache installed.