DATAEXPERT CORPORATION
AIO4044
|
Device Type |
Mainboard |
|
Processor |
CX486S/80486SX/80487SX/80486DX/80486DX2/80486DX4/P24T |
|
Processor Speed |
25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz |
|
Chip Set |
OPTI |
|
Video Chip Set |
Trident |
|
Maximum Onboard Memory |
64MB |
|
Maximum Video Memory |
Unidentified |
|
Cache |
128/512KB |
|
BIOS |
Award |
|
Dimensions |
188mm x 188mm |
|
I/O Options |
Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, riser slot |
|
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 alter |
J1 |
Unidentified |
|
|
Factory configured - do not alter |
JP2 |
Unidentified |
|
|
Factory configured - do not alter |
JP5 |
Unidentified |
|
|
VGA output select interlaced |
JP6 |
Closed |
|
VGA output select non interlaced |
JP6 |
Open | |
|
|
CPU clock speed select <33MHz |
JP10 |
Open |
|
CPU clock speed select >33MHz |
JP10 |
Closed | |
|
|
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 & 10 |
Closed |
|
IDE read prefetch enabled |
JP24/pins 9 & 10 |
Open | |
|
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 (CONT) | ||
|
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 closed |
Pins 2 & 3 closed |
|
80486DX |
Pins 1 & 2, 3 & 4 closed |
Pins 1 & 2 closed |
|
80486DX4 |
Pins 1 & 2, 3 & 4 closed |
Pins 1 & 2 closed |
|
P24T |
Pins 1 & 2, 3 & 4 closed |
Pins 1 & 2 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 | |