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# ELITEGROUP COMPUTER SYSTEMS, INC.
SA486P AIO-U (STD)
Processor 80486SX/80487SX/80486DX/80486DX2/80486DX4/Pentium
Overdrive
Processor 25/33/50(internal)/66(internal)MHz
Speed
Chip Set Intel
Max. Onboard 128MB
DRAM
Cache 128/256/512KB
BIOS AMI/Phoenix
Dimensions 330mm x 218mm
I/O Options 32-bit PCI bus slots (3), floppy drive interface,
green PC connector, IDE interface, SCSI
interface, parallel port, serial ports (2)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------------+----------+----------------+----------|
| Serial port 2 | J1 | Reset switch | J9 |
|---------------------+----------+----------------+----------|
| Serial port 1 | J2 | Speaker | J10 |
|---------------------+----------+----------------+----------|
| Parallel port | J4 | Power LED & | J11 |
| | | keylock | |
|---------------------+----------+----------------+----------|
| SCSI interface | J5 | IDE interface | JP16 |
| | | LED | |
|---------------------+----------+----------------+----------|
| IDE interface | J6 | SCSI interface | JP44 |
| | | LED | |
|---------------------+----------+----------------+----------|
| Floppy drive | J7 | 32-bit PCI bus | PC1 - |
| interface | | slots | PC3 |
|---------------------+----------+----------------+----------|
| Turbo LED | J8 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | BIOS type select EPROM | JP2 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | BIOS type select flash | JP2 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP11 | Open |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Cache installed | JP31 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Cache not installed | JP31 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Cache wait state select 0 wait | JP32 | pins 1 & 2 |
| | states | | closed |
|---+----------------------------------+--------+------------|
| | Cache wait state select 1 wait | JP32 | pins 2 & 3 |
| | state | | closed |
|---+----------------------------------+--------+------------|
| » | 80486DX4 speed select 3x | JP42 | Open |
|---+----------------------------------+--------+------------|
| | 80486DX4 speed select 2x | JP42 | pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 2MB | (2) 256K x 36 | NONE |
|------------------+--------------------+--------------------|
| 4MB | (2) 256K x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 4MB | (2) 512K x 36 | NONE |
|------------------+--------------------+--------------------|
| 6MB | (2) 256K x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 6MB | (2) 512K x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 8MB | (2) 512K x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 8MB | (2) 1M x 36 | NONE |
|------------------+--------------------+--------------------|
| 10MB | (2) 256K x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 10MB | (2) 1M x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 12MB | (2) 512K x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 12MB | (2) 1M x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 16MB | (2) 2M x 36 | NONE |
|------------------+--------------------+--------------------|
| 18MB | (2) 256K x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 18MB | (2) 2M x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 20MB | (2) 512K x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 20MB | (2) 2M x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 24MB | (2) 1M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (2) 4M x 36 | NONE |
|------------------+--------------------+--------------------|
| 34MB | (2) 256K x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 34MB | (2) 4M x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 36MB | (2) 512K x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 36MB | (2) 4M x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 40MB | (2) 1M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 48MB | (2) 2M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (2) 8M x 36 | NONE |
|------------------+--------------------+--------------------|
| 66MB | (2) 256K x 36 | (2) 8M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 66MB | (2) 8M x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 68MB | (2) 512K x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 68MB | (2) 8M x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 72MB | (2) 1M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 72MB | (2) 8M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 80MB | (2) 2M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 80MB | (2) 8M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 96MB | (2) 4M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 512KB | (4) 128K x 8 | NONE | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP25 | JP28 | JP30 |
|-------+--------------------------+------------+------------|
| 128KB | pins 1 & 2 closed | pins 2 & 3 | pins 1 & 2 |
| | | closed | closed |
|-------+--------------------------+------------+------------|
| 256KB | pins 1 & 2, 3 & 4 closed | pins 1 & 2 | pins 2 & 3 |
| | | closed | closed |
|-------+--------------------------+------------+------------|
| 512KB | pins 1 & 2, 3 & 4, 5 & 6 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP38 | JP39 |
|--------------------+-------------------+-------------------|
| SL80486SX | pins 2 & 3 closed | Closed |
|--------------------+-------------------+-------------------|
| 80486SX | pins 2 & 3 closed | Open |
|--------------------+-------------------+-------------------|
| SL80487SX | pins 1 & 2, 3 & 4 | Closed |
| | closed | |
|--------------------+-------------------+-------------------|
| 80487SX | pins 1 & 2, 3 & 4 | Open |
| | closed | |
|--------------------+-------------------+-------------------|
| SL80486DX | pins 1 & 2, 3 & 4 | Closed |
| | closed | |
|--------------------+-------------------+-------------------|
| 80486DX | pins 1 & 2, 3 & 4 | Open |
| | closed | |
|--------------------+-------------------+-------------------|
| SL80486DX2 | pins 1 & 2, 3 & 4 | Closed |
| | closed | |
|--------------------+-------------------+-------------------|
| 80486DX2 | pins 1 & 2, 3 & 4 | Open |
| | closed | |
|--------------------+-------------------+-------------------|
| 80486DX4 | pins 1 & 2, 3 & 4 | Closed |
| | closed | |
|--------------------+-------------------+-------------------|
| SL Pentium | pins 1 & 2, 3 & 4 | Closed |
| Overdrive | closed | |
|--------------------+-------------------+-------------------|
| Pentium Overdrive | pins 1 & 2 closed | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP20 | JP34 |
|-------------------+-------------------+--------------------|
| 25MHz | Closed | pins 2 & 3 closed |
|-------------------+-------------------+--------------------|
| 33MHz | Open | pins 1 & 2 closed |
|-------------------+-------------------+--------------------|
| 50iMHz | Closed | pins 2 & 3 closed |
|-------------------+-------------------+--------------------|
| 66iMHz | Open | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | JP35 | JP36 |
|------------------+--------------------+--------------------|
| | 3.3v | pins 2 & 3 closed | pins 2 & 3 closed |
|---+--------------+--------------------+--------------------|
| » | 5.0v | pins 1 & 2 closed | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| GREEN PC INTERRUPT CONFIGURATION |
|------------------------------------------------------------|
| IRQ | JP1 |
|----------------------------+-------------------------------|
| | IRQ5 | pins 1 & 2 closed |
|----+-----------------------+-------------------------------|
| | IRQ9 | pins 3 & 4 closed |
|----+-----------------------+-------------------------------|
| » | IRQ14 | pins 5 & 6 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| GREEN PC INTERRUPT CONFIGURATION |
|------------------------------------------------------------|
| IRQ | JP6 |
|----------------------------+-------------------------------|
| | IRQ7 | pins 1 & 2 closed |
|----+-----------------------+-------------------------------|
| | IRQ10 | pins 3 & 4 closed |
|----+-----------------------+-------------------------------|
| » | IRQ11 | pins 5 & 6 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT INTERRUPT/DMA REQUEST CONFIGURATION |
|------------------------------------------------------------|
| Setting | JP5 | JP8 | JP10 |
|-----------+----------------+---------------+---------------|
| | DRQ1 | pins 1 & 2 | Open | Open |
| | | closed | | |
|---+-------+----------------+---------------+---------------|
| » | DRQ3 | pins 2 & 3 | Open | Open |
| | | closed | | |
|---+-------+----------------+---------------+---------------|
| | DACK1 | Open | pins 1 & 2 | Open |
| | | | closed | |
|---+-------+----------------+---------------+---------------|
| » | DACK3 | Open | pins 2 & 3 | Open |
| | | | closed | |
|---+-------+----------------+---------------+---------------|
| | IRQ5 | Open | Open | pins 1 & 2 |
| | | | | closed |
|---+-------+----------------+---------------+---------------|
| » | IRQ7 | Open | Open | pins 2 & 3 |
| | | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PCI INTERRUPT CONFIGURATION (INT A) |
|------------------------------------------------------------|
| IRQ | JP4 | JP7 | JP9 |
|-----------+----------------+---------------+---------------|
| | IRQ9 | pins 1 & 2 | Open | Open |
| | | closed | | |
|---+-------+----------------+---------------+---------------|
| | IRQ10 | Open | Open | pins 1 & 2 |
| | | | | closed |
|---+-------+----------------+---------------+---------------|
| » | IRQ11 | Open | pins 1 & 2 | Open |
| | | | closed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PCI INTERRUPT CONFIGURATION (INT B) |
|------------------------------------------------------------|
| IRQ | JP43 |
|----------------------------+-------------------------------|
| | IRQ7 | pins 1 & 2 closed |
|------+---------------------+-------------------------------|
| » | IRQ9 | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PCI INTERRUPT CONFIGURATION (INT C) |
|------------------------------------------------------------|
| IRQ | JP4 | JP7 | JP9 |
|-----------+----------------+---------------+---------------|
| | IRQ9 | pins 2 & 3 | Open | Open |
| | | closed | | |
|---+-------+----------------+---------------+---------------|
| » | IRQ10 | Open | Open | pins 2 & 3 |
| | | | | closed |
|---+-------+----------------+---------------+---------------|
| | IRQ11 | Open | pins 2 & 3 | Open |
| | | | closed | |
+------------------------------------------------------------+