EVEREX SYSTEMS, INC.
STEP 386/20
Processor |
80386 |
Processor Speed |
20MHz |
Chip Set |
Unidentified |
Video Chip Set |
None |
Maximum Onboard Memory |
16MB (8MB located on memory card) |
Maximum Video Memory |
None |
Cache |
Unidentified |
BIOS |
Unidentified |
Dimensions |
355mm x 304mm |
I/O Options |
External memory card |
NPU Options |
80387 |
CONNECTIONS | |
Purpose |
Location |
External memory card |
SL1 |
USER CONFIGURABLE SETTINGS | |||
Function |
Label |
Position | |
Color/mono switch |
S1 |
Unidentified | |
|
NPU not installed |
W3 |
Open |
NPU installed |
W3 |
Closed | |
Step Up not installed |
W14 |
Closed | |
Step Up installed |
W14 |
Open | |
Bus speed select 6.7MHz |
W17 |
Closed | |
Bus speed select 10MHz |
W17 |
Open |
DRAM CONFIGURATION | ||||
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
1MB |
(4) 256K x 9 |
None |
None |
None |
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
None |
None |
3MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
None |
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 |
12MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
None |
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 memory card. The size of the parity chips is unidentified. |
DRAM BANK CONFIGURATION | ||||||
Banks used |
RN27 |
RN28 |
RN29 |
RN30 |
RN31 |
RN32 |
1 |
Installed |
Not installed |
Not installed |
Installed |
Not installed |
Not installed |
2 |
Not installed |
Installed |
Not installed |
Not installed |
Installed |
Not installed |
4 |
Not installed |
Not installed |
Installed |
Not installed |
Not installed |
Installed |
DRAM BANK CONFIGURATION (CON’T) | ||||||
Banks used |
RN58 |
RN59 |
RN60 |
RN61 |
RN62 |
RN63 |
1 |
Installed |
Not installed |
Not installed |
Installed |
Not installed |
Not installed |
2 |
Not installed |
Installed |
Not installed |
Not installed |
Installed |
Not installed |
4 |
Not installed |
Not installed |
Installed |
Not installed |
Not installed |
Installed |
SIMM SIZE CONFIGURATION | |
Size |
W15 |
256K x 9 |
Closed |
1M x 9 |
Open |
BASE MEMORY CONFIGURATION | |
Size |
W16 |
512KB |
Closed |
640KB |
Open |
CACHE CONFIGURATION |
Note: The size of the cache is unidentified. |