ZENITH DATA SYSTEMS
Z-159
|
Processor |
8088 |
|
Processor Speed |
4.77/8MHz |
|
Chip Set |
Unidentified |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
1.2MB |
|
Maximum Video Memory |
None |
|
Cache |
None |
|
BIOS |
Unidentified |
|
Dimensions |
Unidentified |
|
I/O Options |
External memory card, CPU slot |
|
NPU Options |
8087 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Video slot |
SL1 |
Floppy drive slot |
SL4 |
|
Hard drive slot |
SL2 |
Memory slot |
SL5 |
|
CPU slot |
SL3 | ||
|
CONNECTIONS | |
|
Purpose |
Location |
|
Clock speed switch |
CN1 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
Floppy drives enabled |
SW101/0 |
Off | |
|
Floppy drives disabled |
SW101/0 |
On | |
|
NPU not installed |
SW101/1 |
On | |
|
NPU installed |
SW101/1 |
Off | |
|
Memory wait state select 3 wait states |
SW101/2 |
Off | |
|
Memory wait state select 0 wait state |
SW101/2 |
On | |
|
Monitor ROM RAM protected |
SW101/3 |
Off | |
|
Monitor ROM RAM unprotected |
SW101/3 |
On | |
|
» |
Factory configured - do not alter |
SW102/0 |
On |
|
Video refresh rate select 50Hz |
SW102/7 |
Off | |
|
Video refresh rate select 60Hz |
SW102/7 |
On | |
|
DRAM CONFIGURATION |
|
Note: The size of the memory chips is unidentified. |
|
DRAM JUMPER CONFIGURATION | ||||
|
Size |
SW102/1 |
SW102/2 |
SW102/3 |
SW102/4 |
|
256KB |
Off |
Off |
On |
On |
|
320KB |
On |
On |
Off |
On |
|
384KB |
Off |
On |
Off |
On |
|
448KB |
On |
Off |
Off |
On |
|
512KB |
Off |
Off |
Off |
On |
|
576KB |
On |
On |
On |
Off |
|
640KB |
Off |
On |
On |
Off |
|
SYSTEM AUTO BOOT CONFIGURATION | ||
|
Setting |
SW102/5 |
SW102/6 |
|
Monitor |
On |
On |
|
Floppy drive |
Off |
On |
|
Hard drive |
On |
Off |
|
FLOPPY DRIVE SELECTION | ||
|
Drives installed |
SW101/6 |
SW101/7 |
|
1 |
On |
On |
|
2 |
Off |
On |
|
3 |
On |
Off |
|
4 |
Off |
Off |
|
MONITOR SELECTION | ||
|
Drives installed |
SW101/4 |
SW101/5 |
|
EGA |
On |
On |
|
Color (40 x 25) |
Off |
On |
|
Color (80 x 25) |
On |
Off |
|
Monochrome |
Off |
Off |
|
CONNECTIONS | |
|
Purpose |
Location |
|
Parallel port |
CN1 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
» |
EMS RAM has system RAM |
SW401/1 |
Off |
|
EMS RAM only |
SW401/1 |
On | |
|
» |
Memory size select 640KB |
SW401/2 |
Off |
|
Memory size select 512KB |
SW401/2 |
On | |
|
» |
EMS RAM disabled |
SW401/3 |
On |
|
EMS RAM enabled |
SW401/3 |
Off | |
|
» |
EMS frame address select D0000 – DFFFF |
SW401/4 |
Off |
|
EMS frame address select E0000 – EFFFF |
SW401/4 |
On | |
|
» |
Parallel port IRQ7 enabled |
SW401/7 |
On |
|
Parallel port IRQ7 disabled |
SW401/7 |
Off | |
|
» |
EMS upgrade not installed |
SW401/10 |
Off |
|
EMS upgrade installed |
SW401/10 |
On | |
|
EMC CARD SELECTION | ||
|
Card |
SW401/5 |
SW401/6 |
|
1 |
On |
On |
|
2 |
On |
Off |
|
3 |
Off |
On |
|
4 |
Off |
Off |
|
PARALLEL PORT ADDRESS SELECTION | ||
|
Setting |
SW401/8 |
SW401/9 |
|
LPT1 (378 - 37A) |
Off |
On |
|
LPT2 (3BC – 3BE) |
On |
Off |
|
278 – 27A |
On |
On |
|
Disabled |
Off |
Off |