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# DIAMOND FLOWER, INC.
DFI-386/20
Processor 80386DX
Processor Speed 20MHz
Chip Set C & T
Max. Onboard DRAM 16MB (with external memory card)
Cache None
BIOS AMI
Dimensions 330mm x 218mm
I/O Options 32-bit external memory card
NPU Options 80287/80387DX/3167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Optional keyboard | J2 | CPU clock LED | J8 |
| connector | | | |
|-------------------+----------+------------------+----------|
| Reset switch | J3 | Reset switch | J11 |
|-------------------+----------+------------------+----------|
| Turbo LED | J4 | Turbo switch | J14 |
|-------------------+----------+------------------+----------|
| Turbo switch | J5 | External battery | J15 |
|-------------------+----------+------------------+----------|
| Speaker | J6 | 32-bit external | SL1 |
| | | memory card | |
|-------------------+----------+------------------+----------|
| Power LED & | J7 | | |
| keylock | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Factory configured - do not | J9 | pins 1 & 2 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | NPU disabled | J10 | Open |
|---+----------------------------------+--------+------------|
| | NPU enabled 80287 | J10 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | NPU enabled 80387/3167 | J10 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Monitor type select monochrome | J12 | Open |
|---+----------------------------------+--------+------------|
| | Monitor type select color | J12 | Closed |
|---+----------------------------------+--------+------------|
| » | Battery type select disabled | J13 | Open |
|---+----------------------------------+--------+------------|
| | Battery type select internal | J13 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Battery type select external | J13 | pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 1MB | (4) 256K x | NONE | NONE | NONE |
| | 9 | | | |
|------+-------------+-------------+------------+------------|
| 2MB | (4) 256K x | (4) 256K x | NONE | NONE |
| | 9 | 9 | | |
|------+-------------+-------------+------------+------------|
| 4MB | (4) 1M x 9 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 4MB | (4) 256K x | (4) 256K x | (36) 41256 | (36) 41256 |
| | 9 | 9 | | |
|------+-------------+-------------+------------+------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 10MB | (4) 1M x 9 | (4) 1M x 9 | (36) 41256 | (36) 41256 |
|------+-------------+-------------+------------+------------|
| 16MB | (4) 1M x 9 | (4) 1M x 9 | (36) | (36) |
| | | | 411000 | 411000 |
|------------------------------------------------------------|
| Note: These settings are for J1 open. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 1MB | (36) 41256 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 2MB | (36) 41256 | (36) 41256 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 4MB | (36) 411000 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 4MB | (36) 41256 | (36) 41256 | (4) 256K x | (4) 256K x |
| | | | 9 | 9 |
|------+-------------+-------------+------------+------------|
| 8MB | (36) 411000 | (36) 411000 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 10MB | (36) 411000 | (36) 411000 | (4) 256K x | (4) 256K x |
| | | | 9 | 9 |
|------+-------------+-------------+------------+------------|
| 16MB | (36) 411000 | (36) 411000 | (4) 1M x 9 | (4) 1M x 9 |
|------------------------------------------------------------|
| Note: These settings are for J1 closed. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Setting | J1 |
|---------------------------------------------------+--------|
| Banks 0 & 1 on memory board and Banks 2 & 3 on | Closed |
| mainboard | |
|---------------------------------------------------+--------|
| Banks 0 & 1 on mainboard and Banks 2 & 3 on | Open |
| memory board | |
+------------------------------------------------------------+