(TXT) View Source
# UNIDENTIFIED
B158
Processor V 20 (exact location unidentified)
Processor Speed 4MHz
Chip Set Unidentified
Video Chip Set None
Maximum Onboard Memory 1MB
Maximum Video Memory None
Cache None
BIOS NEL
Dimensions 254mm x 218mm
I/O Options None
NPU Options 8087 (exact location unidentified)
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-----------------+----------+--------------------+----------|
| Keylock | J1 | Turbo LED | J4 |
|-----------------+----------+--------------------+----------|
| Speaker | J2 | Turbo switch | J5 |
|-----------------+----------+--------------------+----------|
| Power LED | J3 | Reset switch | J6 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+--------+-----------|
| | DRAM parity check disabled | SWA/1 | On |
|---+-----------------------------------+--------+-----------|
| | DRAM parity check enabled | SWA/1 | Off |
|---+-----------------------------------+--------+-----------|
| ยป | Factory configured - do not alter | SWA/2 | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank | Bank | Bank | Bank | Bank | Bank | Bank 4 |
| | 0 | 1 | 2 | 2A | 3 | 3A | |
|-------+-------+-------+------+------+------+------+--------|
| 512KB | (9) | (9) | None | None | None | None | None |
| | 41256 | 41256 | | | | | |
|-------+-------+-------+------+------+------+------+--------|
| 640KB | (9) | (9) | (2) | (1) | (2) | (1) | None |
| | 41256 | 41256 | 4464 | 4164 | 4464 | 4164 | |
|-------+-------+-------+------+------+------+------+--------|
| 1MB | None | None | None | None | None | None | (9) |
| | | | | | | | 411000 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER/SWITCH CONFIGURATION |
|------------------------------------------------------------|
| Size | JP1 | SWA/3 | SWA/4 |
|---------------+---------------+--------------+-------------|
| None | Closed | On | On |
|---------------+---------------+--------------+-------------|
| 512KB | Closed | Off | On |
|---------------+---------------+--------------+-------------|
| 640KB | Closed | On | Off |
|---------------+---------------+--------------+-------------|
| 1MB | Open | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MONITOR SELECTION |
|------------------------------------------------------------|
| Setting | SWA/5 | SWA/6 |
|--------------------+-------------------+-------------------|
| None | On | On |
|--------------------+-------------------+-------------------|
| Monochrome | Off | Off |
|--------------------+-------------------+-------------------|
| Color 40 x 25 | Off | On |
|--------------------+-------------------+-------------------|
| Color 80 x 25 | On | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOPPY DRIVE SELECTION |
|------------------------------------------------------------|
| Drives installed | SWA/7 | SWA/8 |
|--------------------+-------------------+-------------------|
| 1 | On | On |
|--------------------+-------------------+-------------------|
| 2 | Off | On |
|--------------------+-------------------+-------------------|
| 3 | On | Off |
|--------------------+-------------------+-------------------|
| 4 | Off | Off |
+------------------------------------------------------------+