EVEREX SYSTEMS, INC.
STEP 386SX20 GATE ARRAY EV-18107C
Processor |
80386SX |
Processor Speed |
20MHz |
Chip Set |
C & T |
Max. onboard DRAM |
16MB |
Cache |
64KB |
BIOS |
AMI |
Dimensions |
355mm x 304mm |
I/O Options |
Floppy drive interface, IDE interface, parallel port, serial ports (2) |
NPU Options |
80387SX |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
Parallel port |
J7 |
Floppy drive interface |
U100 |
IDE interface |
J8 |
Serial port 2 |
U106 |
Speaker |
JP2 |
Serial port 1 |
U107 |
External battery |
JP9 |
LED connector |
LED |
USER CONFIGURABLE SETTINGS | |||
Function |
Jumper |
Position | |
» |
Cache LED disabled |
J3 |
Closed |
Cache LED enabled |
J3 |
Open | |
» |
BIOS type select 27256 |
JP8 |
Open |
BIOS type select 27512 |
JP8 |
Closed | |
» |
Floppy drive interface enabled |
JP9 |
pins 1 & 2 closed |
Floppy drive interface disabled |
JP9 |
pins 3 & 4 closed |
DRAM CONFIGURATION | ||
Size |
Bank 0 |
Bank 1 |
512KB |
(2) 256K x 9 |
NONE |
1MB |
(2) 256K x 9 |
(2) 256K x 9 |
2MB |
(2) 1M x 9 |
NONE |
2.5MB |
(2) 256K x 9 |
(2) 1M x 9 |
4MB |
(2) 1M x 9 |
(2) 1M x 9 |
8MB |
(2) 4M x 9 |
NONE |
8.5MB |
(2) 256K x 9 |
(2) 4M x 9 |
10MB |
(2) 1M x 9 |
(2) 4M x 9 |
16MB |
(2) 4M x 9 |
(2)4M x 9 |
ONBOARD SERIAL/PARALLEL CONFIGURATION | |||
Port |
Connector |
IRQ |
Address |
COM1 |
U107 |
IRQ4 |
3F8h |
COM2 |
U106 |
IRQ3 |
2F8h |
LPT2 |
J7 |
IRQ7 |
378h |
Note:The onboard serial & parallel port configurations are fixed and cannot be altered or disabled. |