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# ELITEGROUP COMPUTER SYSTEMS, INC.
SC58P VIO/S
Processor CX M1/Pentium
Processor Speed 75/90/100/120/133/150/166MHz
Chip Set SIS
Video Chip Set Cirrus Logic
Maximum Onboard 128MB (EDO supported)
Memory
Maximum Video 2MB
Memory
Cache 256/512KB
BIOS AMI
Dimensions 330mm x 218mm
I/O Options Floppy drive interface, IDE interfaces (2),
parallel port, PS/2 mouse port, serial ports
(2), VGA feature connector, VGA port, riser
slot, IR connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------------+----------+---------------+----------|
| PS/2 mouse port | J2 | Turbo LED | J14 |
|----------------------+----------+---------------+----------|
| Floppy drive | J5 | Reset switch | J15 |
| interface | | | |
|----------------------+----------+---------------+----------|
| VGA feature | J6 | IR connector | JP1 |
| connector | | | |
|----------------------+----------+---------------+----------|
| IDE interface 2 | J7 | Parallel port | P1 |
|----------------------+----------+---------------+----------|
| IDE interface 1 | J8 | Serial port 1 | P2 |
|----------------------+----------+---------------+----------|
| IDE interface LED | J12 pins | Serial port 2 | P3 |
| | 1 & 2 | | |
|----------------------+----------+---------------+----------|
| Power LED | J12 pins | VGA port | P4 |
| | 3 - 5 | | |
|----------------------+----------+---------------+----------|
| Chassis fan power | J13 | Riser slot | SL1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+-------+------------|
| » | CMOS memory normal operation | J9 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | CMOS memory clear | J9 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | On board video enabled | JP3 | Closed |
|---+-----------------------------------+-------+------------|
| | On board video disabled | JP3 | Open |
|---+-----------------------------------+-------+------------|
| » | Flash BIOS voltage select 12v | JP11 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Flash BIOS voltage select 5v | JP11 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Floppy drive write protect | JP21 | Pins 1 & 2 |
| | disabled | | closed |
|---+-----------------------------------+-------+------------|
| | Floppy drive write protect | JP21 | Pins 2 & 3 |
| | enabled | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 8MB | (2) 1M x 36 | None |
|------------------+--------------------+--------------------|
| 16MB | (2) 2M x 36 | None |
|------------------+--------------------+--------------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (2) 4M x 36 | None |
|------------------+--------------------+--------------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (2) 8M x 36 | None |
|------------------+--------------------+--------------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 72MB | (2) 8M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 80MB | (2) 8M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|-------------+---------------+---------------+--------------|
| None | None | None | (1) 32K x 8 |
|-------------+---------------+---------------+--------------|
| 256KB (A) | None | (8) 32K x 8 | (1) 32K x 8 |
|-------------+---------------+---------------+--------------|
| 256KB (B) | (2) 32K x 32 | None | (1) 32K x 8 |
|-------------+---------------+---------------+--------------|
| 512KB | None | (8) 64K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP13 |
|----------------------------+-------------------------------|
| None | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 256KB (A) | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 256KB (B) | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 512KB | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VIDEO MEMORY CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|--------------+----------------------+----------------------|
| 1MB | (2) 256K x 16 | None |
|--------------+----------------------+----------------------|
| 2MB | (2) 256K x 16 | (2) 256K x 16 |
|------------------------------------------------------------|
| Note: Bank 0 is factory installed and is not configurable. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CYRIX) |
|------------------------------------------------------------|
| CPU speed | Clock speed | Multiplier | JP14 | JP17 |
|------------+--------------+-------------+---------+--------|
| 120MHz | 50MHz | 2x | 1 & 2 | 1 & 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
| CPU speed | Clock | Multiplier | JP14 | JP17 |
| | speed | | | |
|------------+----------+------------+------------+----------|
| 75MHz | 50MHz | 1.5x | 1 & 2 | Open |
|------------+----------+------------+------------+----------|
| 90MHz | 60MHz | 1.5x | 3 & 4 | Open |
|------------+----------+------------+------------+----------|
| 100MHz | 66MHz | 1.5x | 1 & 2, 3 & | Open |
| | | | 4 | |
|------------+----------+------------+------------+----------|
| 120MHz | 60MHz | 2x | 3 & 4 | 1 & 2 |
|------------+----------+------------+------------+----------|
| 133MHz | 66MHz | 2x | 1 & 2, 3 & | 1 & 2 |
| | | | 4 | |
|------------+----------+------------+------------+----------|
| 150MHz | 60MHz | 2.5x | 3 & 4 | 1 & 2, 3 |
| | | | | & 4 |
|------------+----------+------------+------------+----------|
| 166MHz | 66MHz | 2.5x | 1 & 2, 3 & | 1 & 2, 3 |
| | | | 4 | & 4 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JP22 |
|----------------------------+-------------------------------|
| | Cyrix | Pins 2 & 3 closed |
|---+------------------------+-------------------------------|
| » | Intel | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | JP19 |
|-----------------------------+------------------------------|
| | 3.3v | Pins 1 & 2 closed |
|---+-------------------------+------------------------------|
| » | 3.525v (VRE) | Pins 3 & 4 closed |
+------------------------------------------------------------+