EVEREX SYSTEMS, INC.
STEP 386/20 REV.E (EV-1816A)
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Processor |
80386DX |
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Processor Speed |
20MHz |
|
Chip Set |
C & T |
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Max. Onboard DRAM |
8MB |
|
Cache |
64/128/256KB |
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BIOS |
AMI |
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Dimensions |
330mm x 218mm |
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I/O Options |
32-bit external memory card |
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NPU Options |
80387DX |
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USER CONFIGURABLE SETTINGS |
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Function |
Jumper |
Position |
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Monitor select color |
C/M |
Closed |
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Monitor select monochrome |
C/M |
Open |
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NPU enabled |
W3 |
Closed |
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NPU disabled |
W3 |
Open |
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External memory card disabled |
W14 |
Closed |
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External memory card enabled |
W14 |
Open |
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Base memory select 512KB |
W16 |
Closed |
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Base memory select 640KB |
W16 |
Open |
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Bus speed select 6.7MHz |
W17 |
Closed |
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Bus speed select 10MHz |
W17 |
Open |
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External memory card parity checking disabled |
W20 |
Closed |
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External memory card parity checking disabled |
W20 |
Open |
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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 |
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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 |
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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 |
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Note: Banks 2 & 3 are located on the external memory card. |
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