AAEON TECHNOLOGY, INC.
PCM-4890
Device Type | Single board computer |
Processor | CX486DX2/AM486DX2/80486DX2/CX486DX4/AM486DX4/80486DX4/ CX 5X86/AM 5X86 |
Processor Speed | 33/40/66(internal)/80(internal)/100(internal)/120(internal)/ 133(internal)MHz |
Chip Set | VIA |
Video Chip Set | Chips and Technology |
Maximum Onboard Memory | 64MB (EDO supported) |
Maximum Video Memory | 1MB |
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) |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
VGA interface | CN1 | Main power connector | CN10 |
Flat panel connector | CN2 | AUI connector | CN11 |
Chassis fan power | CN3 | Parallel port | CN12 |
PC/104 connector | CN4 | Ethernet 10BaseT connector | CN13 |
Front panel connector | CN5 | Serial port | CN14 |
PC/104 connector | CN6 | Floppy drive interface | CN15 |
Power connector | CN7 | Ethernet LED | J26 |
PS/2 mouse/keyboard interface | CN8 | Ethernet LED | J28 |
IDE interface | CN9 |
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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 closed | Pins 2 & 3 closed | Pins 2 & 3 closed |
40MHz | Pins 2 & 3 closed | Pins 1 & 2 closed | Pins 1 & 2 closed |
66iMHz | Pins 1 & 2 closed | Pins 2 & 3 closed | Pins 2 & 3 closed |
80iMHz | Pins 2 & 3 closed | Pins 1 & 2 closed | Pins 1 & 2 closed |
100iMHz | Pins 1 & 2 closed | Pins 2 & 3 closed | Pins 2 & 3 closed |
120iMHz | Pins 2 & 3 closed | Pins 1 & 2 closed | Pins 1 & 2 closed |
133iMHz | Pins 1 & 2 closed | Pins 2 & 3 closed | Pins 2 & 3 closed |
CPU TYPE SELECTION | |||
Type | J3 | J4 | J5 |
CX486DX2 | Open | 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10 | Open |
AM486DX2 | Open | Open | 1 & 2, 3 & 4, 5 & 6 |
80486DX2 | 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10 | Open | Open |
CX486DX4 | 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10 | Open | Open |
AM486DX4-100 | 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10 | Open | Open |
AM486DX4-120 | 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10 | Open | Open |
80486DX4 | 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10 | Open | Open |
CX 5X86 | Open | 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10 | Open |
AM 5X86 | 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10 | Open | Open |
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 closed | Pins 1 & 2 closed | Pins 1 & 2 closed | Pins 1 & 2 closed |
RS-422 | Pins 2 & 3 closed | Pins 2 & 3 closed | Pins 2 & 3 closed | Pins 2 & 3 closed |
RS-485 | Pins 2 & 3 closed | Pins 2 & 3 closed | Pins 2 & 3 closed | Pins 2 & 3 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 |