TEXT View Source
# ELITEGROUP COMPUTER SYSTEMS, INC.
UC 4913
Processor 80486SX/80486DX/ODP486SX/80486DX2/CX486SX
Processor Speed 25/33/40/50(internal)/50/66(internal)MHz
Chip Set UMC
Max. Onboard DRAM 64MB
Cache 64/128/256KB
BIOS AMI
Dimensions 230mm x 218mm
I/O Options 32-bit VESA local bus slots (3)
NPU Options CX487SX
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| Speaker | J1 | Power LED & | JP6 |
| | | keylock | |
|------------------+----------+-------------------+----------|
| External battery | J2 | 32-bit VESA Local | S1 |
| | | bus slot | |
|------------------+----------+-------------------+----------|
| Turbo LED | JP3 | 32-bit VESA Local | S2 |
| | | bus slot | |
|------------------+----------+-------------------+----------|
| Turbo switch | JP4 | 32-bit VESA Local | S3 |
| | | bus slot | |
|------------------+----------+-------------------+----------|
| Reset switch | JP5 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Monitor type select color | JP11 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | JP11 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Weitek Power 9000 VESA VGA card | JP18 | pins 1 & 2 |
| | not installed | | closed |
|---+----------------------------------+--------+------------|
| | Weitek Power 9000 VESA VGA card | JP18 | pins 2 & 3 |
| | installed | | 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 |
|------------------+--------------------+--------------------|
| 64MB | (4) 16M x 9 | NONE |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP13 | JP15 | JP16 | JP17 |
|-------+-----------------+--------+----------------+--------|
| 64KB | Open | Open | pins 1 & 2 | Open |
| | | | closed | |
|-------+-----------------+--------+----------------+--------|
| 128KB | pins 2 & 3 | Open | pins 2 & 3 | Closed |
| | closed | | closed | |
|-------+-----------------+--------+----------------+--------|
| 256KB | pins 1 & 2 | Closed | pins 1 & 2 | Closed |
| | closed | | closed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| PGA | Socket | JP7 | JP8 | JP12 |
|-----------------+--------+-------------+----------+--------|
| 80386DX | PGA | pins 2 & 3 | Open | Closed |
| | | closed | | |
|-----------------+--------+-------------+----------+--------|
| 80486SX | PQFP | pins 2 & 3 | Open | Open |
| | | closed | | |
|-----------------+--------+-------------+----------+--------|
| 80486SX | PGA | N/A | N/A | Closed |
|-----------------+--------+-------------+----------+--------|
| 80486DX | PQFP | pins 1 & 2 | pins 2 & | Open |
| | | and 3 & 4 | 3 closed | |
|-----------------+--------+-------------+----------+--------|
| 80486DX | PGA | N/A | N/A | Closed |
|-----------------+--------+-------------+----------+--------|
| 80486DX2 | PQFP | pins 1 & 2 | pins 2 & | Open |
| | | and 3 & 4 | 3 closed | |
|-----------------+--------+-------------+----------+--------|
| 80486DX2 | PGA | N/A | N/A | Closed |
|-----------------+--------+-------------+----------+--------|
| ODP486SX | PQFP | pins 1 & 2 | pins 1 & | Open |
| | | and 3 & 4 | 2 closed | |
|-----------------+--------+-------------+----------+--------|
| ODP486SX | PGA | N/A | N/A | Closed |
|-----------------+--------+-------------+----------+--------|
| CX486SX/CX487SX | PGA | pins 1 & 2 | pins 2 & | Closed |
| | | and 3 & 4 | 3 closed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP9 | JP10 |
|--------------------+-------------------+-------------------|
| 25MHz | Closed | Closed |
|--------------------+-------------------+-------------------|
| 33MHz | Open | Closed |
|--------------------+-------------------+-------------------|
| 40MHz | Closed | Open |
|--------------------+-------------------+-------------------|
| 50i MHz | Closed | Closed |
|--------------------+-------------------+-------------------|
| 66i MHz | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| NPU CONFIGURATION |
|------------------------------------------------------------|
| CX487SX | JP19 | JP20 | JP21 |
|---------------+------------------+------------+------------|
| Installed | pins 2 & 3 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
|---------------+------------------+------------+------------|
| Not installed | pins 1 & 2 | pins 2 & 3 | pins 2 & 3 |
| | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VESA WAIT STATE/BUS SPEED CONFIGURATION |
|------------------------------------------------------------|
| CPU speed | Wait states | JP1 | JP2 |
|---------------+---------------+--------------+-------------|
| £ 33MHz | 0 wait states | Open | Open |
|---------------+---------------+--------------+-------------|
| > 33MHz | 1 wait state | Closed | Closed |
+------------------------------------------------------------+