UNIDENTIFIED 786 ACIO VESA (VER. 2) Device Type Mainboard Processor 80386DX/CX486DLC/80486SX/80486DX/80486DX2 Processor Speed 25/33/40/50(internal)/50/66(internal)MHz Chip Set Unidentified Max. Onboard DRAM32MB Cache 64/128/256KB BIOS Unidentified Dimensions 254mm x 218mm I/O Options 32-bit VESA local bus slots (2) NPU Options 80387DX [Image] CONNECTIONS Purpose Location Purpose Location Power LED & keylock J2 External battery J7 Turbo switch J4 Speaker J100 Turbo LED J5 32-bit VESA Local bus S1 slot Reset switch J6 32-bit VESA Local bus S2 slot USER CONFIGURABLE SETTINGS Function Jumper Position » Monitor type select color J3 Closed Monitor type select monochrome J3 Open » CMOS memory normal operation (Internal battery) JMP3 Pins 2 & 3 closed » CMOS memory normal operation (External battery) JMP3 Pins 1 & 2 closed CMOS memory clear JMP3 Pins 2 & 4 closed » NPU enabled JMP4 Pins 2 & 3 closed NPU disabled JMP4 Pins 1 & 2 closed » Factory configured - do not alter JMP7 Closed » Factory configured - do not alter JMP13 Pins 1 & 2 closed VESA BUS SELECTION Function JMP6 JMP14 JMP15 466-50MHz VESA local bus enabled Open 1 & 2 1 & 2 All other VESA local busses Closed 2 & 3 2 & 3 enabled Note: Pins designated should be in the closed position. 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 8MB (4) 1M x 9 (4) 1M x 9 16MB (4) 4M x 9 None 32MB (4) 4M x 9 (4) 4M x 9 CACHE CONFIGURATION Size Bank 0 Bank 1 TAG/U26 TAG/U27 64KB (4) 8K x 8 (4) 8K x 8 (1) 8K x 8 (1) 8K x 8 128KB (4) 32K x NONE (1) 8K x 8 (1) 8K x 8 8 256KB (4) 32K x (4) 32K x (1) 32K x 8 (1) 32K x 8 8 8 CACHE JUMPER CONFIGURATION Size JMP1A JMP1B JMP1C JMP8 64KB 1 & 2 1 & 2 1 & 2 1 & 2, 4 & 5 128KB 2 & 3 1 & 2 2 & 3 2 & 3, 4 & 5 256KB 2 & 3 2 & 3 2 & 3 2 & 3, 5 & 6 Note:Pins designated should be in the closed position. CPU TYPE CONFIGURATION Type JMP2 JMP5 80386DX 2 & 3 Closed CX486DLC Open Open 80486SX 1 & 2 Open 80486DX 2 & 3 Open 80486DX2 2 & 3 Open Note:Pins designated should be in the closed position. CPU SPEED CONFIGURATION Speed JMP9 80386DX/25MHz Pins 1 & 5 and 2 & 6 closed 80386DX/33MHz Pins 1 & 5 and 4 & 8 closed 80386DX/40MHz Pins 1 & 5, 3 & 7 and 4 & 8 closed CX486DLC-33 Pins 1 & 5 and 4 & 8 closed CX486DLC-40 Pins 1 & 5, 3 & 7 and 4 & 8 closed 80486SX-33 Pins 4 & 8 closed 80486DX/50MHz Pins 3 & 7 closed 80486DX/25MHz Pins 2 & 6 closed 80486DX/33MHz Pins 4 & 8 closed 80486DX2/50i MHz Pins 2 & 6 closed 80486DX2/66i MHz Pins 4 & 8 closed