UNITRON COMPUTER, INC.
486SX-25
Processor |
80486SX |
Processor Speed |
25MHz |
Chip Set |
UMC |
Max. Onboard DRAM |
32MB |
Cache |
None |
BIOS |
Phoenix |
Dimensions |
330mm x 218mm |
I/O Options |
None |
NPU Options |
None |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
External battery |
J3 |
Turbo LED |
J11 |
Reset switch |
J9 |
Speaker |
J12 |
Turbo switch |
J10 |
Power LED & keylock |
J13 |
USER CONFIGURABLE SETTINGS | |||
Function |
Jumper |
Position | |
» |
Monitor type select color |
J4 |
pins 2 & 3 closed |
Monitor type select monochrome |
J4 |
pins 1 & 2 closed | |
» |
Factory configured - do not alter |
J8 |
N/A |
DRAM CONFIGURATION | ||
Size |
Bank 0 |
Bank 1 |
1MB |
(4) 256K x 9 |
NONE |
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
4MB |
(4) 1M x 9 |
NONE |
5MB |
(4) 1M x 9 |
(4) 256K x 9 |
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
16MB |
(4) 4M x 9 |
NONE |
17MB |
(4) 4M x 9 |
(4) 256K x 9 |
20MB |
(4) 4M x 9 |
(4) 1M x 9 |
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
CPU TYPE CONFIGURATION | |||
Type |
J5 |
J6 |
J7 |
80486SX |
pins 2 & 3 closed |
pins 2 & 3 closed |
Open |
80487SX |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
80486DX |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |