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# MECER CORPORATION
B615/B616
Processor 80386DX
Processor Speed 33/40MHz
Chip Set FOREX
Max. Onboard DRAM 32MB
Cache 64/128/256KB
BIOS AMI
Dimensions 330mm x 218mm
I/O Options None
NPU Options 80387DX/3167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------------+----------+---------------+----------|
| Auxiliary keyboard | JP1 | Power LED & | JP9 |
| connector | | keylock | |
|----------------------+----------+---------------+----------|
| External battery | JP2 | Speaker | JP10 |
|----------------------+----------+---------------+----------|
| Turbo LED | JP7 | Turbo switch | JP11 |
|----------------------+----------+---------------+----------|
| Reset switch | JP8 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|---------------------------------------+---------+----------|
| » | Monitor type select monochrome | JP3 | Closed |
|---+-----------------------------------+---------+----------|
| | Monitor type select color | JP3 | Open |
|---+-----------------------------------+---------+----------|
| » | Parity check enabled | JP101 | Closed |
|---+-----------------------------------+---------+----------|
| | Parity check disabled | JP101 | Open |
|---+-----------------------------------+---------+----------|
| » | External battery type select 6.0v | JP200 | Open |
|---+-----------------------------------+---------+----------|
| | External battery type select 3.6v | JP200 | Closed |
|---+-----------------------------------+---------+----------|
| » | CMOS memory normal operation | JP202 | Open |
|---+-----------------------------------+---------+----------|
| | CMOS memory clear | JP202 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 1MB | (4) 256K x 9 | NONE |
|------------------+--------------------+--------------------|
| 2MB | (4) 256K x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 4MB | (4) 1M x 9 | NONE |
|------------------+--------------------+--------------------|
| 5MB | (4) 256K x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 16MB | (4) 4M x 9 | NONE |
|------------------+--------------------+--------------------|
| 20MB | (4) 1M x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TG0 | TG1 |
|-------+-------------+------------+------------+------------|
| 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 | NONE |
|-------+-------------+------------+------------+------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 | NONE |
|-------+-------------+------------+------------+------------|
| 256KB | (4) 32K x 8 | (4) 32K x | (1) 8K x 8 | (1) 8K x 8 |
| | | 8 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP6A | JP6B | JP6C |
|-------+-----------------+-----------------+----------------|
| 64KB | pins 2 & 3 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
|-------+-----------------+-----------------+----------------|
| 128KB | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
|-------+-----------------+-----------------+----------------|
| 256KB | pins 1 & 2 | pins 2 & 3 | pins 2 & 3 |
| | closed | closed | closed |
+------------------------------------------------------------+