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# ZENITH DATA SYSTEMS
Z-386/20
Processor 80386
Processor Speed 20/25MHz
Chip Set Unidentified
Max. Onboard DRAM 32MB
Cache 64KB
BIOS Unidentified
Dimensions 330mm x 218mm
I/O Options External cache card
NPU Options 80387DX/3167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| Chassis fan | FAN | External cache | SL1 |
| power | | slot | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|-----------------------------------+--------+---------------|
| » | NPU enabled | J101 | pins 1 & 2 |
| | | | closed |
|---+-------------------------------+--------+---------------|
| | NPU disabled | J101 | pins 2 & 3 |
| | | | closed |
|---+-------------------------------+--------+---------------|
| » | CPU clock speed select 20 MHz | J102 | pins 1 & 2 |
| | | | closed |
|---+-------------------------------+--------+---------------|
| | CPU clock speed select 25 MHz | J102 | pins 2 & 3 |
| | | | closed |
|---+-------------------------------+--------+---------------|
| » | NPU synchronous with CPU | J103 | pins 1 & 2 |
| | | | closed |
|---+-------------------------------+--------+---------------|
| | NPU asynchronous with CPU | J103 | pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
|Size|Bank 0|Bank 1|Bank 2|Bank 3|Bank 4|Bank 5|Bank 6|Bank 7|
|----+------+------+------+------+------+------+------+------|
|1MB |(1) 1M| NONE | NONE | NONE | NONE | NONE | NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|1MB | (1) | (1) | (1) | (1) | NONE | NONE | NONE | NONE |
| | 256K | 256K | 256K | 256K | | | | |
|----+------+------+------+------+------+------+------+------|
|2MB |(1) 1M|(1) 1M| NONE | NONE | NONE | NONE | NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|2MB |(1) 1M| (1) | (1) | (1) | (1) | NONE | NONE | NONE |
| | | 256K | 256K | 256K | 256K | | | |
|----+------+------+------+------+------+------+------+------|
|2MB | (1) | (1) | (1) | (1) | (1) | (1) | (1) | (1) |
| | 256K | 256K | 256K | 256K | 256K | 256K | 256K | 256K |
|----+------+------+------+------+------+------+------+------|
|3MB |(1) 1M|(1) 1M| (1) | (1) | (1) | (1) | NONE | NONE |
| | | | 256K | 256K | 256K | 256K | | |
|----+------+------+------+------+------+------+------+------|
|3MB |(1) 1M|(1) 1M|(1) 1M| NONE | NONE | NONE | NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|4MB |(1) 4M| NONE | NONE | NONE | NONE | NONE | NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|4MB |(1) 1M|(1) 1M|(1) 1M|(1) 1M| NONE | NONE | NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|4MB |(1) 1M|(1) 1M|(1) 1M| (1) | (1) | (1) | (1) | NONE |
| | | | | 256K | 256K | 256K | 256K | |
|----+------+------+------+------+------+------+------+------|
|5MB |(1) 4M|(1) 1M| NONE | NONE | NONE | NONE | NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|5MB |(1) 4M| (1) | (1) | (1) | (1) | NONE | NONE | NONE |
| | | 256K | 256K | 256K | 256K | | | |
|----+------+------+------+------+------+------+------+------|
|5MB |(1) 1M|(1) 1M|(1) 1M|(1) 1M|(1) 1M| NONE | NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|5MB |(1) 1M|(1) 1M|(1) 1M|(1) 1M| (1) | (1) | (1) | (1) |
| | | | | | 256K | 256K | 256K | 256K |
|----+------+------+------+------+------+------+------+------|
|6MB |(1) 4M|(1) 1M|(1) 1M| NONE | NONE | NONE | NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|6MB |(1) 4M|(1) 1M| (1) | (1) | (1) | (1) | NONE | NONE |
| | | | 256K | 256K | 256K | 256K | | |
|----+------+------+------+------+------+------+------+------|
|6MB |(1) 1M|(1) 1M|(1) 1M|(1) 1M|(1) 1M|(1) 1M| NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|7MB |(1) 4M|(1) 1M|(1) 1M|(1) 1M| NONE | NONE | NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|7MB |(1) 4M|(1) 1M|(1) 1M| (1) | (1) | (1) | (1) | NONE |
| | | | | 256K | 256K | 256K | 256K | |
|----+------+------+------+------+------+------+------+------|
|7MB |(1) 1M|(1) 1M|(1) 1M|(1) 1M|(1) 1M|(1) 1M|(1) 1M| NONE |
|----+------+------+------+------+------+------+------+------|
|8MB |(1) 4M|(1) 4M| NONE | NONE | NONE | NONE | NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|8MB |(1) 4M|(1) 1M|(1) 1M|(1) 1M|(1) 1M| NONE | NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|8MB |(1) 1M|(1) 1M|(1) 1M|(1) 1M|(1) 1M|(1) 1M|(1) 1M|(1) 1M|
|----+------+------+------+------+------+------+------+------|
|9MB |(1) 4M|(1) 4M|(1) 1M| NONE | NONE | NONE | NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|9MB |(1) 4M|(1) 4M| (1) | (1) | (1) | (1) | NONE | NONE |
| | | | 256K | 256K | 256K | 256K | | |
|----+------+------+------+------+------+------+------+------|
|9MB |(1) 4M|(1) 1M|(1) 1M|(1) 1M|(1) 1M|(1) 1M| NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|10MB|(1) 4M|(1) 4M|(1) 1M|(1) 1M| NONE | NONE | NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|10MB|(1) 4M|(1) 4M|(1) 1M| (1) | (1) | (1) | (1) | NONE |
| | | | | 256K | 256K | 256K | 256K | |
|----+------+------+------+------+------+------+------+------|
|10MB|(1) 4M|(1) 1M|(1) 1M|(1) 1M|(1) 1M|(1) 1M|(1) 1M| NONE |
|----+------+------+------+------+------+------+------+------|
|11MB|(1) 4M|(1) 4M|(1) 1M|(1) 1M|(1) 1M| NONE | NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|11MB|(1) 4M|(1) 4M|(1) 1M|(1) 1M| (1) | (1) | (1) | (1) |
| | | | | | 256K | 256K | 256K | 256K |
|----+------+------+------+------+------+------+------+------|
|11MB|(1) 4M|(1) 1M|(1) 1M|(1) 1M|(1) 1M|(1) 1M|(1) 1M|(1) 1M|
|----+------+------+------+------+------+------+------+------|
|12MB|(1) 4M|(1) 4M|(1) 4M| NONE | NONE | NONE | NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|12MB|(1) 4M|(1) 4M|(1) 1M|(1) 1M|(1) 1M|(1) 1M| NONE | NONE |
|------------------------------------------------------------|
|Note:All DRAM SIMMs are 9 bit. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION CON’T |
|------------------------------------------------------------|
|Size|Bank 0|Bank 1|Bank 2|Bank 3|Bank 4|Bank 5|Bank 6|Bank 7|
|----+------+------+------+------+------+------+------+------|
|13MB|(1) 4M|(1) 4M|(1) 4M|(1) 1M| NONE | NONE | NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|13MB|(1) 4M|(1) 4M|(1) 4M| (1) | (1) | (1) | (1) | NONE |
| | | | | 256K | 256K | 256K | 256K | |
|----+------+------+------+------+------+------+------+------|
|13MB|(1) 4M|(1) 4M|(1) 1M|(1) 1M|(1) 1M|(1) 1M|(1) 1M| NONE |
|----+------+------+------+------+------+------+------+------|
|14MB|(1) 4M|(1) 4M|(1) 4M|(1) 1M|(1) 1M| NONE | NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|14MB|(1) 4M|(1) 4M|(1) 4M|(1) 1M| (1) | (1) | (1) | (1) |
| | | | | | 256K | 256K | 256K | 256K |
|----+------+------+------+------+------+------+------+------|
|14MB|(1) 4M|(1) 4M|(1) 1M|(1) 1M|(1) 1M|(1) 1M|(1) 1M|(1) 1M|
|----+------+------+------+------+------+------+------+------|
|15MB|(1) 4M|(1) 4M|(1) 4M|(1) 1M|(1) 1M|(1) 1M| NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|16MB|(1) 4M|(1) 4M|(1) 4M|(1) 4M| NONE | NONE | NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|16MB|(1) 4M|(1) 4M|(1) 4M|(1) 1M|(1) 1M|(1) 1M|(1) 1M| NONE |
|----+------+------+------+------+------+------+------+------|
|17MB|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 1M| NONE | NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|17MB|(1) 4M|(1) 4M|(1) 4M|(1) 4M| (1) | (1) | (1) | (1) |
| | | | | | 256K | 256K | 256K | 256K |
|----+------+------+------+------+------+------+------+------|
|17MB|(1) 4M|(1) 4M|(1) 4M|(1) 1M|(1) 1M|(1) 1M|(1) 1M|(1) 1M|
|----+------+------+------+------+------+------+------+------|
|18MB|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 1M|(1) 1M| NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|19MB|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 1M|(1) 1M|(1) 1M| NONE |
|----+------+------+------+------+------+------+------+------|
|20MB|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 4M| NONE | NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|20MB|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 1M|(1) 1M|(1) 1M|(1) 1M|
|----+------+------+------+------+------+------+------+------|
|21MB|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 1M| NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|22MB|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 1M|(1) 1M| NONE |
|----+------+------+------+------+------+------+------+------|
|23MB|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 1M|(1) 1M|(1) 1M|
|----+------+------+------+------+------+------+------+------|
|24MB|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 4M| NONE | NONE |
|----+------+------+------+------+------+------+------+------|
|25MB|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 1M| NONE |
|----+------+------+------+------+------+------+------+------|
|26MB|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 1M|(1) 1M|
|----+------+------+------+------+------+------+------+------|
|28MB|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 4M| NONE |
|----+------+------+------+------+------+------+------+------|
|29MB|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 1M|
|----+------+------+------+------+------+------+------+------|
|32MB|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 4M|(1) 4M|
|------------------------------------------------------------|
|Note:All DRAM SIMMs are 9 bit. |
+------------------------------------------------------------+