ATEN RESEARCH, INC. 486-KVD Processor 80486SX/80487SX/80486DX/80486DX2/Pentium Overdrive Processor Speed 25/33/40/50(internal)/50/66(internal)MHz Chip Set VIA Max. Onboard DRAM128MB Cache 64/128/256KB BIOS Award Dimensions 254mm x 220mm I/O Options 32-bit VESA local bus slots (2) NPU Options None [Image] CONNECTIONS Purpose Location Purpose Location External battery J2 Speaker J12 Turbo LED J9 Power LED & keylock J13 Turbo switch J10 32-bit VESA local bus SL1 & SL2 slots Reset switch J11 USER CONFIGURABLE SETTINGS Function Jumper Position » Battery type select internal J1 pins 2 & 3 closed Battery type select external J1 pins 1 & 2 closed » Monitor type select J4 Open monochrome/EGA/VGA Monitor type select color J4 Closed » Password clear Award J7 pins 1 & 2 closed Password clear AMI J7 pins 2 & 3 closed » Factory configured - do not alter JC5 N/A » CMOS memory normal operation S1 Open CMOS memory clear S1 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 5MB (4) 256K x 9 (4) 1M 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 17MB (4) 256K x 9 (4) 4M x 9 20MB (4) 4M x 9 (4) 1M x 9 20MB (4) 1M x 9 (4) 4M x 9 32MB (4) 4M x 9 (4) 4M x 9 64MB (4) 16M x 9 NONE 65MB (4) 16M x 9 (4) 256K x 9 65MB (4) 256K x 9 (4) 16M x 9 68MB (4) 16M x 9 (4) 1M x 9 68MB (4) 1M x 9 (4) 16M x 9 80MB (4) 16M x 9 (4) 4M x 9 80MB (4) 4M x 9 (4) 16M x 9 128MB (4) 16M x 9 (4) 16M x 9 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG 64KB (4) 8K x 8 (4) 8K x 8 (1) 8K x 8 128KB (4) 32K x 8 NONE (1) 8K x 8 256KB (4) 32K x 8 (4) 32K x 8 (1) 32K x 8 CACHE JUMPER CONFIGURATION Size JS1 JS2 JS3 64KB pins 1 & 2 pins 1 & 2 pins 1 & 2 closed closed closed 128KB pins 1 & 2 pins 2 & 3 pins 2 & 3 closed closed closed 256KB pins 2 & 3 pins 2 & 3 pins 1 & 2 closed closed closed CPU TYPE CONFIGURATION Type JC1 JC2 JC3 JC4 80486SX pins 2 & 3 pins 2 & 3 Open Open closed closed 80486DX pins 1 & 2 pins 1 & 2 Closed Closed closed closed CPU CLOCK SPEED CONFIGURATION Speed JK1 25MHz pins 5 & 6 closed 33MHz pins 1 & 2 closed 40MHz pins 1 & 2, 5 & 6, 7 & 8 closed 40MHz pins 1 & 2, 3 & 4 closed 50iMHz pins 5 & 6, 7 & 8 closed 50MHz pins 3 & 4 closed 66MHz pins 3 & 4, 7 & 8 closed 66iMHz pins 1 & 2, 7 & 8 closed 80MHz pins 1 & 2, 3 & 4, 7 & 8 closed Power down Open VESA WAIT STATE CONFIGURATION Wait states JV3 0 wait states pins 2 & 3 closed 1 wait state pins 1 & 2 closed BUS SPEED CONFIGURATION CPU speed JV2 <= 33MHz pins 2 & 3 closed > 33MHz pins 1 & 2 closed KEYBOARD CONFIGURATION Setting J3 JB1 JB2 JB3 JB4 JB5 Internal Open 2 & 3 2 & 3 2 & 3 2 & 3 2 & 3 External Closed 1 & 2 1 & 2 1 & 2 1 & 2 1 & 2 Note: Pins designated should be in the closed position.