VISION TECHNOLOGIES VAES3486 Processor 80386DX/CX486DLC/CX486S/CX487S/80486SX(PQFP)/ 80486SX/80486DX/80486DX2/Pentium Overdrive Processor 16/20/25/33/40/50(internal)/50/66(internal)MHz Speed Chip Set OPTI Max. Onboard 64MB DRAM Cache 64/128/256KB BIOS AMI Dimensions 330mm x 218mm I/O Options 32-bit VESA local bus slots (2), floppy drive interface, IDE interface, green PC connector, parallel port, serial ports (2) NPU Options CX387 [Image] CONNECTIONS Purpose Location Purpose Location Serial port 1 CN1 Power supply/sleep JP2 mode Serial port 2 CN2 Speaker JP28 Floppy drive CN3 Green PC connector JP30 interface IDE interface CN4 Turbo switch JP33 Parallel port CN5 Turbo LED JP38 External battery J10 Reset switch S1 IDE interface LED J17 32-bit VESA local bus SL1 & SL2 slots Power LED & keylock J22 USER CONFIGURABLE SETTINGS Function Jumper Position » Factory configured - do not J9 N/A alter » Pentium Overdrive enabled JP1 Open Pentium Overdrive disabled JP1 Closed » VESA supports bus mastering JP4 Closed VESA does not support bus JP4 Open mastering » On board PS/2 style mouse JP14 Closed enabled On board PS/2 style mouse JP14 Open disabled » Power down mode enabled JP15 pins 2 & 3 closed Power down mode disabled JP15 pins 1 & 2 closed » Keyboard password clear JP16 Closed Keyboard password enabled JP16 Open » NPU disabled JP24 pins 1 & 2 closed NPU enabled JP24 pins 2 & 3 closed » CMOS memory normal operation JP29 pins 2 & 3 closed CMOS memory clear JP29 pins 1 & 2 closed » Green PC power down mode enabled JP30 Open Green PC power down mode JP30 Closed disabled » Turbo disabled JP33 Closed Turbo enabled JP33 Open » VESA card type select standard JP34 pins 2 & 3 VESA VGA closed VESA card type select Tekram JP34 pins 1 & 2 VESA/Cache IDE closed Note: The location of JP16 is unidentified. DRAM CONFIGURATION Size Bank 0 Bank 1 1MB (1) 256K x 36 NONE 2MB (1) 256K x 36 (1) 256K x 36 4MB (1) 1M x 36 NONE 16MB (1) 4M x 36 NONE 32MB (1) 8M x 36 NONE 64MB (1) 16M x 36 NONE DRAM JUMPER CONFIGURATION Type JP42 Only Bank 0 used pins 1 & 2 closed Bank 0 & Bank 1 used pins 2 & 3 closed 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 JP3 JP18 JP19 JP20 64KB pins 2 & 3 Closed Closed pins 2 & 3 closed closed 128KB pins 1 & 2 Open Closed pins 1 & 2 closed closed 256KB pins 2 & 3 Closed Closed pins 2 & 3 closed closed CPU TYPE CONFIGURATION Type JP17 JP21 JP23 JP25 JP26 JP27 JP31 JP32 JP36 80386DX(PGA) Open 2 & Open 1 & Open Open Closed Open Open 3 2 CX486DLC Open 2 & Open 1 & Open Open Closed Open Open 3 2 80386DX(PQFP) Open 2 & Open 1 & Open Open Open Open Open 3 2 CX486S 1 & 2 & Closed 2 & Open Open Closed Closed 1 & 2 3 3 2 Cx487S 1 & 2 & Closed 2 & Closed Open Closed Closed 1 & 2 3 3 2 80486SX(PQFP) 2 & 2 & Open 1 & Open Open Open Open Open 3 3 2 80486SX(PGA) 1 & 2 & Open 1 & Open Open Closed Closed 2 & 2 3 2 3 80486DX 1 & 2 & Open 1 & Open Open Closed Closed 1 & 2 3 2 2 80486DX-50(only) 1 & 2 & Open 2 & Open Open Closed Closed 1 & 2 3 3 2 80486DX2 1 & 2 & Open 1 & Open Open Closed Closed 1 & 2 3 2 2 P24T (WB) 1 & 1 & Closed 2 & Open Open Closed Closed 1 & 2 2 3 2 P24T (WT) 1 & 1 & Closed 2 & Open Closed Closed Closed 1 & 2 2 3 2 Note: Pins designated should be in the closed position (The location of JP25 and JP26 is unidentified). CPU TYPE CONFIGURATION Type JP5 JP22 JP35 80386/CX486DLC Open pins 2 & 3 pins 1 & 2 closed closed 80486/P24T/CX486S Closed pins 1 & 2 pins 2 & 3 closed closed CPU SPEED CONFIGURATION Speed JP39 JP40 JP41 16MHz Open Closed Open 20MHz Open Closed Closed 25MHz Closed Open Open 33MHz Closed Open Closed 40MHz Closed Closed Open 50iMHz Closed Open Open 50MHz Closed Closed Closed 66iMHz Closed Open Closed DMA CHANNEL INTERRUPT CONFIGURATION DRQ DACK JP6 JP7 JP8 JP9 JP10 JP11 JP12 JP13 DRQ3 DACK3 Closed Open Open Open Closed Open Open Open DRQ5 DACK5 Open Closed Open Open Open Closed Open Open DRQ6 DACK6 Open Open Closed Open Open Open Closed Open DRQ7 DACK7 Open Open Open Closed Open Open Open Closed VESA WAIT STATE CONFIGURATION Wait states JP37 0 wait states Open 1 wait state Closed