AAEON TECHNOLOGY, INC. PCM-4890 Device Type Single board computer Processor CX486DX2/AM486DX2/80486DX2/CX486DX4/AM486DX4/80486DX4/ CX 5X86/AM 5X86 Processor 33/40/66(internal)/80(internal)/100(internal)/120(internal)/ Speed 133(internal)MHz Chip Set VIA Video Chip Chips and Technology Set Maximum 64MB (EDO supported) Onboard Memory Maximum 1MB Video Memory Cache 128/256/512KB BIOS Award Dimensions 202mm x 146mm I/O Options AUI connector, Ethernet 10BaseT connector, floppy drive interface, IDE interface, parallel port, PS/2 mouse interface, serial ports (2), VGA port, PC/104 connectors (2) [Image] CONNECTIONS Purpose Location Purpose Location VGA interface CN1 Main power CN10 connector Flat panel connector CN2 AUI connector CN11 Chassis fan power CN3 Parallel port CN12 PC/104 connector CN4 Ethernet 10BaseT CN13 connector Front panel connector CN5 Serial port CN14 PC/104 connector CN6 Floppy drive CN15 interface Power connector CN7 Ethernet LED J26 PS/2 mouse/keyboard CN8 Ethernet LED J28 interface IDE interface CN9 USER CONFIGURABLE SETTINGS Function Label Position » CMOS memory normal operation J8 Pins 1 & 2 closed CMOS memory clear J8 Pins 2 & 3 closed Cache type select write through J12 Closed Cache type select write back J12 Open Watchdog timer reset J19 Open Watchdog timer IRQ15 J19 Closed Buzzer enabled J21 Closed Buzzer disabled J21 Open » Parallel port IRQ select IRQ7 J23 Pins 2 & 3 closed Parallel port IRQ select IRQ5 J23 Pins 1 & 2 closed SIMM CONFIGURATION Size Bank 0 Bank 1 1MB (1) 256K x 36 None 2MB (1) 512K x 36 None 2MB (1) 256K x 36 (1) 256K x 36 3MB (1) 512K x 36 (1) 256K x 36 4MB (1) 1M x 36 None 4MB (1) 512K x 36 (1) 512K x 36 5MB (1) 1M x 36 (1) 256K 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 9MB (1) 2M x 36 (1) 256K x 36 10MB (1) 2M x 36 (1) 512K x 36 SIMM CONFIGURATION (CON'T) Size Bank 0 Bank 1 12MB (1) 2M x 36 (1) 1M x 36 16MB (1) 4M x 36 None 16MB (1) 2M x 36 (1) 2M x 36 17MB (1) 4M x 36 (1) 256K 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 32MB (1) 4M x 36 (1) 4M x 36 33MB (1) 8M x 36 (1) 256K x 36 34MB (1) 8M x 36 (1) 512K x 36 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 Note: The location of the cache is unidentified. VIDEO MEMORY CONFIGURATION Note: The location of the video memory is unidentified. CPU SPEED SELECTION Speed J16 J17 J18 33MHz Pins 1 & 2 Pins 2 & 3 Pins 2 & 3 closed closed closed 40MHz Pins 2 & 3 Pins 1 & 2 Pins 1 & 2 closed closed closed 66iMHz Pins 1 & 2 Pins 2 & 3 Pins 2 & 3 closed closed closed 80iMHz Pins 2 & 3 Pins 1 & 2 Pins 1 & 2 closed closed closed 100iMHz Pins 1 & 2 Pins 2 & 3 Pins 2 & 3 closed closed closed 120iMHz Pins 2 & 3 Pins 1 & 2 Pins 1 & 2 closed closed closed 133iMHz Pins 1 & 2 Pins 2 & 3 Pins 2 & 3 closed closed closed CPU TYPE SELECTION Type J3 J4 J5 CX486DX2 Open 1 & 2, 3 & 4, Open 5 & 6, 7 & 8, 9 & 10 AM486DX2 Open Open 1 & 2, 3 & 4, 5 & 6 80486DX2 1 & 2, 3 & 4, Open Open 5 & 6, 7 & 8, 9 & 10 CX486DX4 1 & 2, 3 & 4, Open Open 5 & 6, 7 & 8, 9 & 10 AM486DX4-100 1 & 2, 3 & 4, Open Open 5 & 6, 7 & 8, 9 & 10 AM486DX4-120 1 & 2, 3 & 4, Open Open 5 & 6, 7 & 8, 9 & 10 80486DX4 1 & 2, 3 & 4, Open Open 5 & 6, 7 & 8, 9 & 10 CX 5X86 Open 1 & 2, 3 & 4, Open 5 & 6, 7 & 8, 9 & 10 AM 5X86 1 & 2, 3 & 4, Open Open 5 & 6, 7 & 8, 9 & 10 Note: Pins designated should be in the closed position. CPU TYPE SELECTION (CON'T) Type J7 J9 J10 J11 CX486DX2 1 & 2 1 & 2 1 & 2 Closed AM486DX2 2 & 3 1 & 2 1 & 2 Closed 80486DX2 2 & 3 1 & 2 1 & 2 Closed CX486DX4 1 & 2 1 & 2 1 & 2 Closed AM486DX4-100 1 & 2 1 & 2 1 & 2 Closed AM486DX4-120 2 & 3 1 & 2 1 & 2 Closed 80486DX4 2 & 3 1 & 2 1 & 2 Closed CX 5X86 1 & 2 1 & 2 1 & 2 Closed AM 5X86 2 & 3 1 & 2 1 & 2 Closed Note: Pins designated should be in the closed position. CPU MULTIPLIER SELECTION Multiplier J13 J14 1x Open Open 2x Closed Closed CPU VOLTAGE SELECTION (SINGLE) Voltage J1 3v Pins 1 & 3, 2 & 4 closed 5v Pins 3 & 5, 4 & 6 closed CPU VOLTAGE SELECTION (DUAL) Voltage J2 » 3.3v Pins 1 & 2 closed 3.45v Pins 3 & 4 closed 3.6v Pins 5 & 6 closed DMA CHANNEL SELECTION Channel J6 J22 » 1 Pins 1 & 2 closed Pins 1 & 2 closed 3 Pins 2 & 3 closed Pins 2 & 3 closed SERIAL PORT 2 SELECTION Setting J27 RS-232 Pins 1 & 2 closed RS-422 Pins 3 & 4 closed RS-485 Pins 5 & 6 closed SERIAL PORT VOLTAGE SELECTION Setting J29 J30 J31 J32 RS-232 Pins 1 & 2 Pins 1 & 2 Pins 1 & 2 Pins 1 & 2 closed closed closed closed RS-422 Pins 2 & 3 Pins 2 & 3 Pins 2 & 3 Pins 2 & 3 closed closed closed closed RS-485 Pins 2 & 3 Pins 2 & 3 Pins 2 & 3 Pins 2 & 3 closed closed closed closed SERIAL PORT COM3 INTERRUPT SELECTION IRQ J24 IRQ5 Pins 1 & 2 closed IRQ10 Pins 2 & 3 closed SERIAL PORT COM4 INTERRUPT SELECTION IRQ J25 IRQ5 Pins 1 & 2 closed IRQ10 Pins 2 & 3 closed SERIAL PORT COM3/4 VOLTAGE SELECTION Voltage J33 J34 Ring Pins 1 & 2 closed Pins 1 & 2 closed 5v Pins 3 & 4 closed Pins 3 & 4 closed 12v Pins 5 & 6 closed Pins 5 & 6 closed WATCHDOG TIMER SELECTION Setting J15 J20 Enabled Closed Closed Disabled Open Open