DATAEXPERT CORPORATION AIO4044 Device Mainboard Type Processor CX486S/80486SX/80487SX/80486DX/80486DX2/80486DX4/P24T Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz Speed Chip Set OPTI Video Chip Trident Set Maximum 64MB Onboard Memory Maximum Unidentified Video Memory Cache 128/512KB BIOS Award Dimensions 188mm x 188mm I/O Floppy drive interface, IDE interface, parallel port, PS/2 mouse Options port, serial ports (2), VGA feature connector, VGA port, riser slot [Image] CONNECTIONS Purpose Location Purpose Location VGA port CN1 PS/2 mouse port CN8 Parallel port CN2 Power LED & keylock J2 Serial port 2 CN3 Reset switch J3 Serial port 1 CN4 Turbo LED J4 VGA feature connector CN5 Turbo switch J5 Floppy drive interface CN6 Speaker J6 IDE interface CN7 Riser slot SL1 USER CONFIGURABLE SETTINGS Function Label Position » Factory configured - do not J1 Unidentified alter » Factory configured - do not JP2 Unidentified alter » Factory configured - do not JP5 Unidentified alter » VGA output select JP6 Closed interlaced VGA output select non JP6 Open interlaced » CPU clock speed select JP10 Open <33MHz CPU clock speed select JP10 Closed >33MHz » IDE interface enabled JP24/pins 5 & 6 Open IDE interface disabled JP24/pins 5 & 6 Closed » IDE select primary JP24/pins 7 & 8 Open IDE select secondary JP24/pins7 & 8 Closed » IDE read prefetch disabled JP24/pins 9 & Closed 10 IDE read prefetch enabled JP24/pins 9 & Open 10 SIMM CONFIGURATION Size Bank 0 Bank 1 2MB (1) 512K x 36 None 4MB (1) 1M x 36 None 4MB (1) 512K x 36 (1) 512K x 36 6MB (1) 1M x 36 (1) 512K x 36 8MB (1) 2M x 36 None 8MB (1) 1M x 36 (1) 1M x 36 10MB (1) 2M x 36 (1) 512K x 36 12MB (1) 2M x 36 (1) 1M x 36 16MB (1) 4M x 36 None SIMM CONFIGURATION (CON’T) Size Bank 0 Bank 1 16MB (1) 2M x 36 (1) 2M x 36 18MB (1) 4M x 36 (1) 512K x 36 20MB (1) 4M x 36 (1) 1M x 36 24MB (1) 4M x 36 (1) 2M x 36 32MB (1) 8M x 36 None 36MB (1) 8M x 36 (1) 1M x 36 40MB (1) 8M x 36 (1) 2M x 36 48MB (1) 8M x 36 (1) 4M x 36 64MB (1) 8M x 36 (1) 8M x 36 CACHE CONFIGURATION Size Bank 0 TAG 128KB (4) 32K x 8 (1) 8K x 8 512KB (4) 128K x 8 (1) 32K x 8 CACHE JUMPER CONFIGURATION Size JP28 JP29 128KB Open Open 512KB Closed Closed VIDEO MEMORY CONFIGURATION Note: The size and location of the video memory is unidentified. CPU SPEED SELECTION Speed JP13 JP14 JP15 JP16 25MHz Closed Closed Closed Open 33MHz Closed Closed Open Open 40MHz Open Closed Open Open 50iMHz Closed Closed Closed Open 50MHz Closed Open Open Open 66iMHz Closed Closed Open Open 75iMHz Closed Closed Closed Open 100iMHz Closed Closed Open Open CPU TYPE SELECTION Type JP25 JP26 CX486S Pins 2 & 3 closed Open 80486SX Pins 2 & 3 closed Open 80487SX Pins 1 & 2, 3 & 4 Pins 2 & 3 closed closed 80486DX Pins 1 & 2, 3 & 4 Pins 1 & 2 closed closed 80486DX4 Pins 1 & 2, 3 & 4 Pins 1 & 2 closed closed P24T Pins 1 & 2, 3 & 4 Pins 1 & 2 closed closed CPU MULTIPLIER SELECTION Multiplier JP22 2x Pins 1 & 2 closed 2.5x Pins 2 & 3 closed 3x Open CPU VOLTAGE SELECTION Voltage JP27 3.3v Pins 2 & 3, 5 & 6 closed 5v Pins 1 & 2, 4 & 5 closed VGA SELECTION Setting JP3 JP8 » Enabled Pins 1 & 2 closed Pins 1 & 2 closed Disabled Pins 2 & 3 closed Pins 2 & 3 closed IDE MODE SELECTION Mode JP24/pins 1 & 2 JP24/pins 3 & 4 » 0 Closed Closed 1 Open Closed 2 Closed Open 3 Open Open IDE FREQUENCY SELECTION Frequency JP24/pins 11 & 12 JP24/pins 13 & 14 25MHz Open Open » 33MHz Closed Open 40MHz Open Closed 50MHz Closed Closed