EVEREX SYSTEMS, INC.
STEP 386/20 REV.E (EV-1816A)
|
Processor |
80386DX |
|
Processor Speed |
20MHz |
|
Chip Set |
C & T |
|
Max. Onboard DRAM |
8MB |
|
Cache |
64/128/256KB |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit external memory card |
|
NPU Options |
80387DX |

|
USER CONFIGURABLE SETTINGS |
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|
Function |
Jumper |
Position |
|
|
» |
Monitor select color |
C/M |
Closed |
|
|
Monitor select monochrome |
C/M |
Open |
|
» |
NPU enabled |
W3 |
Closed |
|
|
NPU disabled |
W3 |
Open |
|
» |
External memory card disabled |
W14 |
Closed |
|
|
External memory card enabled |
W14 |
Open |
|
» |
Base memory select 512KB |
W16 |
Closed |
|
|
Base memory select 640KB |
W16 |
Open |
|
» |
Bus speed select 6.7MHz |
W17 |
Closed |
|
|
Bus speed select 10MHz |
W17 |
Open |
|
» |
External memory card parity checking disabled |
W20 |
Closed |
|
|
External memory card parity checking disabled |
W20 |
Open |
|
DRAM CONFIGURATION |
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|
Mainboard mem. |
Total memory |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
1MB |
(4) 256K x 9 |
NONE |
NONE |
NONE |
|
2MB |
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
NONE |
NONE |
|
2MB |
4MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
|
4MB |
4MB |
(4) 1M x 9 |
NONE |
NONE |
NONE |
|
8MB |
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
NONE |
|
8MB |
16MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
|
Note: Banks 2 & 3 are located on the external memory card. |
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|
DRAM JUMPER CONFIGURATION |
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|
Size |
W1 |
W15 |
W21 |
PAL |
|
1MB |
Closed |
Closed |
Closed |
ICX-1816A-107C |
|
2MB |
Closed |
Closed |
Open |
ICX-1816-107A |
|
4MB (256K x 9) |
Closed |
Closed |
Closed |
ICX-1816A-107C |
|
4MB (1M x 9) |
Open |
Open |
Open |
ICX-1816-107A |
|
8MB |
Open |
Open |
Open |
ICX-1816-107A |
|
16MB |
Open |
Open |
Open |
ICX-1816-107A |
|
CACHE CONFIGURATION |
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|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
64KB |
(8) 16K x 4 |
NONE |
NONE |
NONE |
|
128KB |
(8) 16K x 4 |
(8) 16K x 4 |
NONE |
NONE |
|
256KB |
(8) 16K x 4 |
(8) 16K x 4 |
(8) 16K x 4 |
(8) 16K x 4 |
|
Note: Banks 2 & 3 are located on the external memory card. |
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