DATAEXPERT CORPORATION
AIO8554
Device Type | Mainboard |
Processor | Pentium |
Processor Speed | 75/90/100/120/133MHz |
Chip Set | Unidentified |
Video Chip Set | Unidentified |
Maximum Onboard Memory | 128MB |
Maximum Video Memory | 2MB |
Cache | 256/512KB |
BIOS | AMI |
Dimensions | 330mm x 210mm |
I/O Options | Floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, riser slot, wavetable connector, audio in CD-ROMs (3), MIDI connector |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Serial port 1 | J1 | Audio in CD-ROM (Panasonic) | J14 |
Serial port 2 | J2 | Audio in CD-ROM (Sony) | J15 |
Parallel port | J3 | Audio in CD-ROM(Mitsumi) | J16 |
VGA port | J4 | Reset switch | J17 |
External battery | J6 | Turbo LED | J18 |
VGA feature connector | J7 | Turbo switch | J19 |
IDE interface 1 | J8 | Speaker | J20 |
IDE interface 2 | J9 | Power LED & keylock | J21 |
IDE interface LED | J10 | Green PC connector | JP18 |
IDE interface LED | J11 | MIDI connector | JP38 |
Floppy drive interface | J12 | PS/2 mouse port | M1 |
Wavetable connector | J13 | Riser slot | SL1 |
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
» | CMOS memory normal operation | JP11 | Pins 2 & 3 closed |
CMOS memory clear | JP11 | Pins 1 & 2 closed | |
» | CMOS memory normal operation (12887A clock only) | JP12 | Open |
CMOS memory clear (12887A clock only) | JP12 | Closed | |
Printer mode select standard | JP15 | Closed | |
Printer mode select EPP/ECP | JP15 | Open | |
Feature function disabled | JP40 | Open | |
Feature function enabled | JP40 | Closed |
SIMM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
2MB | (2) 256K x 36 | None |
4MB | (2) 512K x 36 | None |
4MB | (2) 256K x 36 | (2) 256K x 36 |
6MB | (2) 512K x 36 | (2) 256K x 36 |
8MB | (2) 1M x 36 | None |
8MB | (2) 512K x 36 | (2) 512K x 36 |
10MB | (2) 1M x 36 | (2) 256K x 36 |
12MB | (2) 512K x 36 | (2) 1M x 36 |
SIMM CONFIGURATION (CONT) | ||
Size | Bank 0 | Bank 1 |
16MB | (2) 2M x 36 | None |
16MB | (2) 1M x 36 | (2) 1M x 36 |
18MB | (2) 2M x 36 | (2) 256K x 36 |
20MB | (2) 512K x 36 | (2) 2M x 36 |
24MB | (2) 2M x 36 | (2) 1M x 36 |
32MB | (2) 4M x 36 | None |
32MB | (2) 2M x 36 | (2) 2M x 36 |
34MB | (2) 4M x 36 | (2) 256K x 36 |
36MB | (2) 512K x 36 | (2) 4M x 36 |
40MB | (2) 4M x 36 | (2) 1M x 36 |
48MB | (2) 2M x 36 | (2) 4M x 36 |
64MB | (2) 8M x 36 | None |
64MB | (2) 4M x 36 | (2) 4M x 36 |
66MB | (2) 8M x 36 | (2) 256K x 36 |
68MB | (2) 512K x 36 | (2) 8M x 36 |
72MB | (2) 8M x 36 | (2) 1M x 36 |
80MB | (2) 2M x 36 | (2) 8M x 36 |
96MB | (2) 8M x 36 | (2) 4M x 36 |
128MB | (2) 8M x 36 | (2) 8M x 36 |
CACHE CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | TAG |
256KB (A) | None | None | (2) 32K x 36 | Unidentified |
256KB (B) | (2) 32K x 32 | None | None | (1) 8K/16K/32K x 8 |
512KB | (2) 32K x 32 | (2) 32K x 32 | None | (1) 16K/32K x 8 |
CACHE JUMPER CONFIGURATION | ||
Size | JP22 | JP31 |
256KB (B) | Open | Pins 1 & 2 closed |
512KB | Closed | Pins 2 & 3 closed |
VIDEO MEMORY CONFIGURATION |
Note: The video chips sizes are unidentified. |
CPU SPEED SELECTION | ||||||
CPU speed | Clock speed | Multiplier | JP24 | JP27 | JP29 | JP30 |
75MHz | 50MHz | 1.5x | Open | Open | Open | Open |
90MHz | 60MHz | 1.5x | Closed | Open | Open | Open |
100MHz | 66MHz | 1.5x | Closed | Closed | Open | Open |
120MHz | 60MHz | 2x | Closed | Open | Closed | Open |
133MHz | 66MHz | 2x | Closed | Closed | Closed | Open |
DMA CHANNEL SELECTION | ||
Channel | JP13 | JP14 |
1 | Pins 1 & 2 closed | Pins 1 & 2 closed |
3 | Pins 2 & 3 closed | Pins 2 & 3 closed |