EVEREX SYSTEMS, INC.
STEP 486
|
Processor |
80486SX |
|
Processor Speed |
25/33MHz |
|
Chip Set |
Unidentified |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
32MB (on external memory card) |
|
Maximum Video Memory |
None |
|
Cache |
Unidentified |
|
BIOS |
Unidentified |
|
Dimensions |
355mm x 304mm |
|
I/O Options |
External memory card, parallel port, serial ports (2) |
|
NPU Options |
4167 |
|
CONNECTIONS |
|||
|
Purpose |
Location |
Purpose |
Location |
|
Parallel port |
CN1 |
Serial port 2 |
CN3 |
|
Serial port 1 |
CN2 |
External memory card |
SL1 |
|
USER CONFIGURABLE SETTINGS |
|||
|
Function |
Label |
Position |
|
|
» |
Factory configured - do not alter |
JP3 |
Open |
|
» |
Factory configured - do not alter |
JP4 |
Pins 2 & 3 closed |
|
» |
Factory configured - do not alter |
JP6 |
Open |
|
» |
Factory configured - do not alter |
JP10 |
Open |
|
» |
Factory configured - do not alter |
JP11 |
Open |
|
» |
Factory configured - do not alter |
JP12 |
Open |
|
CACHE CONFIGURATION |
|
Note: The size of the cache is unidentified. |
|
SERIAL PORT INTERRUPT SELECTION |
||
|
IRQ |
J2 |
J3 |
|
IRQ3 |
Pins 3 & 4 closed |
Pins 3 & 4 closed |
|
IRQ4 |
Pins 5 & 6 closed |
Pins 5 & 6 closed |
|
IRQ5 |
Pins 7 & 8 closed |
Pins 7 & 8 closed |
|
IRQ9 |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Note: Port 1 interrupts are set by one jumper and Port 2 interrupts are set by the other jumper. The correspondence between ports and jumpers is unidentified. |
||
|
PARALLEL PORT INTERRUPT SELECTION |
|
|
IRQ |
J1 |
|
IRQ5 |
Pins 3 & 4 closed |
|
IRQ7 |
Pins 5 & 6 closed |
|
IRQ9 |
Pins 1 & 2 closed |
|
DRAM CONFIGURATION |
||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
4MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
|
4MB |
(4) 1M x 9 |
None |
None |
None |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
None |
None |
|
16MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
None |
None |
None |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
None |
None |