TEXT View Source
# AMERICAN MEGATRENDS, INC.
SERIES 68 ENTERPRISE-III
Processor 80486SX/80487SX/80486DX/ODP486SX/80486DX2
Processor Speed 25/33/50(internal)/50/66(internal)MHz
Chip Set AMI
Max. Onboard DRAM 256MB
Cache 256KB (factory configured)
BIOS AMI
Dimensions 330mm x 307mm
I/O Options 32-bit VESA local bus slots (2), mouse port
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------+----------+---------------------+----------|
| Turbo LED | D5 | Reset switch | J9 |
|----------------+----------+---------------------+----------|
| Diagnostic LED | J1 | Power LED & keylock | J10 |
|----------------+----------+---------------------+----------|
| Mouse | J3 | Turbo switch | J14 |
|----------------+----------+---------------------+----------|
| Speaker | J8 | 32-bit VESA local | S1 & S2 |
| | | bus slots | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper/Switch | Position |
|-------------------------------+---------------+------------|
| » | CMOS memory normal | J2 | Open |
| | operation | | |
|---+---------------------------+---------------+------------|
| | CMOS memory clear | J2 | Closed |
|---+---------------------------+---------------+------------|
| » | CPU select low priority | J19 | pins 1 & 2 |
| | | | closed |
|---+---------------------------+---------------+------------|
| | CPU select high priority | J19 | pins 2 & 3 |
| | | | closed |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | J20 | Closed |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | J21 | Closed |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | J24 | Closed |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | VESA bus select ID3 | J30 | pins 1 & 2 |
| | normal operation <=33MHz | | closed |
|---+---------------------------+---------------+------------|
| | VESA bus select remote | J30 | pins 2 & 3 |
| | ID3 > 33MHz | | closed |
|---+---------------------------+---------------+------------|
| » | Factory configured - do | SW1/1 | Off |
| | not alter | | |
|---+---------------------------+---------------+------------|
| » | Monitor type select | SW1/2 | Off |
| | monochrome | | |
|---+---------------------------+---------------+------------|
| | Monitor type select color | SW1/2 | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|-------+-------------+------------+------------+------------|
| 6MB | (4) 256K x | (4) 256K x | (4) 1M x 9 | NONE |
| | 9 | 9 | | |
|-------+-------------+------------+------------+------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 10MB | (4) 256K x | (4) 256K x | (4) 1M x 9 | (4) 1M x 9 |
| | 9 | 9 | | |
|-------+-------------+------------+------------+------------|
| 12MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | NONE |
|-------+-------------+------------+------------+------------|
| 16MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
|-------+-------------+------------+------------+------------|
| 16MB | (4) 4M x 9 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 18MB | (4) 256K x | (4) 256K x | (4) 4M x 9 | NONE |
| | 9 | 9 | | |
|-------+-------------+------------+------------+------------|
| 20MB | (4) 1M x 9 | (4) 4M x 9 | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 24MB | (4) 1M x 9 | (4) 1M x 9 | (4) 4M x 9 | NONE |
|-------+-------------+------------+------------+------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 36MB | (4) 1M x 9 | (4) 4M x 9 | (4) 4M x 9 | NONE |
|-------+-------------+------------+------------+------------|
| 40MB | (4) 1M x 9 | (4) 1M x 9 | (4) 4M x 9 | (4) 4M x 9 |
|-------+-------------+------------+------------+------------|
| 48MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | NONE |
|-------+-------------+------------+------------+------------|
| 64MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 |
|-------+-------------+------------+------------+------------|
| 64MB | (4) 16M x 9 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 128MB | (4) 16M x 9 | (4) 16M x | NONE | NONE |
| | | 9 | | |
|-------+-------------+------------+------------+------------|
| 192MB | (4) 16M x 9 | (4) 16M x | (4) 16M x | NONE |
| | | 9 | 9 | |
|-------+-------------+------------+------------+------------|
| 256MB | (4) 16M x 9 | (4) 16M x | (4) 16M x | (4) 16M x |
| | | 9 | 9 | 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | Location | J7 |
|----------------+----------------+--------------------------|
| 80486SX | Primary | pins 2 & 3 closed |
|----------------+----------------+--------------------------|
| ODP486SX | Upgrade | pins 1 & 2, 3 & 4 closed |
|----------------+----------------+--------------------------|
| 80487SX | Upgrade | pins 1 & 2, 3 & 4 closed |
|----------------+----------------+--------------------------|
| 80486DX | Primary | pins 1 & 2, 3 & 4 closed |
|----------------+----------------+--------------------------|
| 80486DX2 | Primary | pins 1 & 2, 3 & 4 closed |
+------------------------------------------------------------+