UNISYS CORPORATION
OPEN SYSTEMS CWP
|
Device Type |
Mainboard |
|
Processor |
80486SX2/80486DX/80486DX2/80486DX4 |
|
Processor Speed |
33/50(internal)/66(internal)/100(internal)MHz |
|
Chip Set |
Unidentified |
|
Video Chip Set |
Cirrus Logic |
|
Maximum Onboard Memory |
64MB |
|
Maximum Video Memory |
2MB |
|
Cache |
256KB |
|
BIOS |
Unidentified |
|
Dimensions |
254mm x 218mm |
|
I/O Options |
Ethernet connector, floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, riser slot, cache slot |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
LED, speaker |
C1 |
VGA feature connector |
CN7 |
|
3.3v power |
C2 |
IDE interface 1 |
CN8 |
|
VGA port |
CN1 |
Floppy drive interface |
CN9 |
|
Ethernet connector |
CN2 |
Smart port connector |
CN10 |
|
PS/2 mouse port |
CN3 |
BNC connector |
CN11 |
|
Parallel port |
CN4 |
Riser slot |
SL1 |
|
Serial port 1 |
CN5 |
Cache slot |
SL2 |
|
Serial port 2 |
CN6 | ||
|
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 |
|
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 |
|
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 | |
|
Size |
SL2 |
|
256KB |
256KB module installed |
|
VIDEO MEMORY CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
1MB |
1MB |
None |
|
2MB |
1MB |
(2) 256K x 16 |
|
CPU TYPE SELECTION | ||||
|
Type |
J22 |
J23 |
J25 |
J26 |
|
80486SX2-33 |
1 & 2 |
1 & 3 |
1 & 3, 2 & 4 |
1 & 3, 2 & 4 |
|
80486DX2-50 |
1 & 2 |
2 & 4 |
1 & 3, 2 & 4 |
1 & 3, 2 & 4 |
|
80486DX2-66 |
1 & 2 |
1 & 3 |
1 & 3, 2 & 4 |
1 & 3, 2 & 4 |
|
80486DX4-100 |
1 & 2 |
1 & 3 |
3 & 5, 4 & 6 |
3 & 5, 4 & 6 |
|
Note: Pins designated should be in the closed position. | ||||
|
CPU TYPE SELECTION (CON’T) | ||||
|
Type |
J27 |
J29 |
J31 |
J32 |
|
80486SX2-33 |
1 & 2 |
Open |
1 & 2 |
Open |
|
80486DX2-50 |
1 & 2 |
Open |
1 & 2 |
Open |
|
80486DX2-66 |
1 & 2 |
Open |
1 & 2 |
Open |
|
80486DX4-100 |
2 & 3 |
Open |
1 & 2 |
Open |
|
Note: Pins designated should be in the closed position. | ||||