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# ELITEGROUP COMPUTER SYSTEMS, INC.
UM8810P-AIO
Processor CX486S/SL80486SX/80486SX/80487SX/SL80486SX2/AM486DX/CX486DX/
SL80486DX/80486DX/AM846DXL/AM486DXL2/AM486DX2/CX486DX2/
SL80486DX2/80486DX2/80486DX2-WB/U5S/U5DS/80486DX4/Pentium Overdrive
Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set UMC
Max. 64MB
Onboard
DRAM
Cache 128/256/512KB
BIOS Award
Dimensions 254mm x 218mm
I/O 32-bit PCI slots (3), floppy drive interface, green PC connector,
Options IDE interfaces (2), parallel port, serial ports (2)
NPU None
Options
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------------+----------+---------------+----------|
| Serial port 2 | J1 | Turbo LED | J11 |
|----------------------+----------+---------------+----------|
| Serial port 1 | J2 | Reset switch | J12 |
|----------------------+----------+---------------+----------|
| Parallel port | J3 | Speaker | J13 |
|----------------------+----------+---------------+----------|
| IDE interface | J7 | Power LED & | J14 |
| (primary) | | keylock | |
|----------------------+----------+---------------+----------|
| IDE interface | J8 | Green PC | J15 |
| (secondary) | | connector | |
|----------------------+----------+---------------+----------|
| Floppy drive | J9 | IDE interface | J16 |
| interface | | LED | |
|----------------------+----------+---------------+----------|
| Turbo switch | J10 | 32-bit PCI | PC1 - |
| | | slots | PC3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Parallel port IRQ select IRQ7 | JP3 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Parallel port IRQ select IRQ5 | JP3 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | BIOS type select EPROM | JP6 | Open |
|---+----------------------------------+--------+------------|
| | BIOS type select flash ROM 5v | JP6 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | BIOS type select flash ROM 12v | JP6 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | On board 37C665 enabled | JP8 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | On board 37C665 disabled | JP8 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP12 | Open |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 1M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 4MB | NONE | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 2M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 8MB | NONE | (1) 2M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 36 | NONE | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 8MB | NONE | (1) 1M x 36 | NONE | (1) 1M x |
| | | | | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 36 | (1) 2M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 4M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 16MB | NONE | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 36 | NONE | (1) 2M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 16MB | NONE | (1) 2M x 36 | NONE | (1) 2M x |
| | | | | 36 |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x | (1) 2M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 4M x 36 | NONE | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 32MB | NONE | (1) 4M x 36 | NONE | (1) 4M x |
| | | | | 36 |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | NONE | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 512KB | (4) 64K x 8 | (4) 64K x 8 | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 512KB | (4) 128K x 8 | NONE | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP13 | JP14 | JP16 | JP33 | JP35 |
|----------+----------+---------+--------+---------+---------|
| 128KB | Open | 1 & 2 | 2 & 3 | Open | Open |
|----------+----------+---------+--------+---------+---------|
| 256KB | Open | 2 & 3 | 1 & 2 | Open | Closed |
|----------+----------+---------+--------+---------+---------|
| 512KB | Open | 2 & 3 | 1 & 2 | Open | Closed |
|----------+----------+---------+--------+---------+---------|
| 512KB | 1 & 2 | 2 & 3 | 2 & 3 | Closed | Closed |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP18 | JP19 | JP20 | JP21 | JP22 | JP23 |
|------------+--------+-------+-------+-------+-------+------|
| CX486S | Open | 2 & 3 | 2 & 3 | Open | 2 & 3 | 2 & |
| | | | | | | 3 |
|------------+--------+-------+-------+-------+-------+------|
| SL80486SX | Open | Open | 2 & 3 | Open | 1 & 2 | Open |
|------------+--------+-------+-------+-------+-------+------|
| 80486SX | Open | Open | 2 & 3 | Open | Open | Open |
|------------+--------+-------+-------+-------+-------+------|
| 80487SX | Open | Open | 1 & | 2 & 3 | Open | Open |
| | | | 2, 3 | | | |
| | | | & 4 | | | |
|------------+--------+-------+-------+-------+-------+------|
| SL80486SX2 | Open | Open | 2 & 3 | Open | 1 & 2 | Open |
|------------+--------+-------+-------+-------+-------+------|
| AM486DX | Open | Open | 1 & | 1 & 2 | Open | Open |
| | | | 2, 3 | | | |
| | | | & 4 | | | |
|------------+--------+-------+-------+-------+-------+------|
| CX486DX | Open | 2 & 3 | 1 & | 1 & 2 | 2 & 3 | 2 & |
| | | | 2, 3 | | | 3 |
| | | | & 4 | | | |
|------------+--------+-------+-------+-------+-------+------|
| SL80486DX | Open | Open | 1 & | 1 & 2 | 1 & 2 | Open |
| | | | 2, 3 | | | |
| | | | & 4 | | | |
|------------+--------+-------+-------+-------+-------+------|
| 80486DX | Open | Open | 1 & | 1 & 2 | Open | Open |
| | | | 2, 3 | | | |
| | | | & 4 | | | |
|------------+--------+-------+-------+-------+-------+------|
| AM486DXL | Open | Open | 1 & | 1 & | Open | Open |
| | | | 2, 3 | 2, 3 | | |
| | | | & 4 | & 4 | | |
|------------+--------+-------+-------+-------+-------+------|
| AM486DXL2 | Open | Open | 1 & | 1 & | Open | Open |
| | | | 2, 3 | 2, 3 | | |
| | | | & 4 | & 4 | | |
|------------+--------+-------+-------+-------+-------+------|
| AM486DX2 | Open | Open | 1 & | 1 & 2 | Open | Open |
| | | | 2, 3 | | | |
| | | | & 4 | | | |
|------------+--------+-------+-------+-------+-------+------|
| CX486DX2 | Open | 2 & 3 | 1 & | 1 & 2 | 2 & 3 | 2 & |
| | | | 2, 3 | | | 3 |
| | | | & 4 | | | |
|------------+--------+-------+-------+-------+-------+------|
| SL80486DX2 | Open | Open | 1 & | 1 & 2 | 1 & 2 | Open |
| | | | 2, 3 | | | |
| | | | & 4 | | | |
|------------+--------+-------+-------+-------+-------+------|
| 80486DX2 | Open | Open | 1 & | 1 & 2 | Open | Open |
| | | | 2, 3 | | | |
| | | | & 4 | | | |
|------------+--------+-------+-------+-------+-------+------|
| 80486DX2 - | Closed | Open | 1 & | 1 & 2 | 1 & | Open |
| WB | | | 2, 3 | | 2, 3 | |
| | | | & 4 | | & 4 | |
|------------+--------+-------+-------+-------+-------+------|
| U5S | Open | Open | 2 & 3 | 1 & | Open | Open |
| | | | | 2, 3 | | |
| | | | | & 4 | | |
|------------+--------+-------+-------+-------+-------+------|
| U5DS | Open | Open | 1 & | 1 & | Open | Open |
| | | | 2, 3 | 2, 3 | | |
| | | | & 4 | & 4 | | |
|------------+--------+-------+-------+-------+-------+------|
| 80486DX4 | Open | Open | 1 & | 1 & 2 | 1 & 2 | Open |
| | | | 2, 3 | | | |
| | | | & 4 | | | |
|------------+--------+-------+-------+-------+-------+------|
| P24T | Open | 2 & 3 | 1 & | 1 & 2 | 1 & 2 | 1 & |
| | | | 2, 3 | | | 2 |
| | | | & 4 | | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP24 | JP27 | JP28 | JP36 | JP37 | JP38 |
|------------+-------+-------+-------+-------+-------+-------|
| CX486S | 2 & 3 | 1 & | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 |
| | | 2, 3 | | | | |
| | | & 4 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| SL80486SX | 2 & 3 | 2 & | Open | 1 & 2 | 1 & 2 | 2 & 3 |
| | | 3, 4 | | | | |
| | | & 5 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| 80486SX | 1 & 2 | Open | Open | Open | 1 & 2 | 1 & 2 |
|------------+-------+-------+-------+-------+-------+-------|
| 80487SX | 1 & 2 | Open | Open | Open | 1 & 2 | 1 & 2 |
|------------+-------+-------+-------+-------+-------+-------|
| SL80486SX2 | 2 & 3 | 2 & | Open | 1 & 2 | 1 & 2 | 2 & 3 |
| | | 3, 4 | | | | |
| | | & 5 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| AM486DX | 1 & 2 | Open | Open | Open | 1 & 2 | 1 & 2 |
|------------+-------+-------+-------+-------+-------+-------|
| CX486DX | 2 & 3 | 1 & | 2 & 3 | 1 & 2 | 1 & 2 | 2 & 3 |
| | | 2, 3 | | | | |
| | | & 4 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| SL80486DX | 2 & 3 | 2 & | Open | 1 & 2 | 1 & 2 | 1 & 2 |
| | | 3, 4 | | | | |
| | | & 5 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| 80486DX | 1 & 2 | Open | Open | Open | 1 & 2 | 1 & 2 |
|------------+-------+-------+-------+-------+-------+-------|
| AM486DXL | 1 & 2 | Open | 3 & 4 | 2 & 3 | 2 & 3 | 1 & 2 |
|------------+-------+-------+-------+-------+-------+-------|
| AM486DXL2 | 1 & 2 | Open | 3 & 4 | 2 & 3 | 2 & 3 | 1 & 2 |
|------------+-------+-------+-------+-------+-------+-------|
| AM486DX2 | 1 & 2 | Open | Open | Open | 1 & 2 | 1 & 2 |
|------------+-------+-------+-------+-------+-------+-------|
| CX486DX2 | 2 & 3 | 1 & | 2 & 3 | 1 & 2 | 1 & 2 | 2 & 3 |
| | | 2, 3 | | | | |
| | | & 4 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| SL80486DX2 | 2 & 3 | 2 & | Open | 1 & 2 | 1 & 2 | 2 & 3 |
| | | 3, 4 | | | | |
| | | & 5 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| 80486DX2 | 1 & 2 | Open | Open | Open | 1 & 2 | 1 & 2 |
|------------+-------+-------+-------+-------+-------+-------|
| 80486DX2 - | 2 & 3 | 2 & | Open | 1 & 2 | 1 & 2 | 1 & 2 |
| WB | | 3, 4 | | | | |
| | | & 5 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| U5S | 1 & 2 | Open | 3 & 4 | 2 & 3 | 2 & 3 | 1 & 2 |
|------------+-------+-------+-------+-------+-------+-------|
| U5DS | 1 & 2 | Open | 3 & 4 | 2 & 3 | 2 & 3 | 1 & 2 |
|------------+-------+-------+-------+-------+-------+-------|
| 80486DX4 | 2 & 3 | 2 & | Open | 1 & 2 | 1 & 2 | 1 & 2 |
| | | 3, 4 | | | | |
| | | & 5 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| P24T | 2 & 3 | 2 & | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 |
| | | 3, 4 | | | | |
| | | & 5 | | | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Size | JP41 | JP44 |
|------------------------+-----------------+-----------------|
| All CPU types | Open | Open |
|------------------------+-----------------+-----------------|
| Pentium Overdrive only | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP17 |
|--------------------------+---------------------------------|
| 25MHz | pins 1 & 2 closed |
|--------------------------+---------------------------------|
| 33MHz | pins 1 & 2, 3 & 4, 5 & 6 closed |
|--------------------------+---------------------------------|
| 40MHz | pins 1 & 2, 3 & 4 closed |
|--------------------------+---------------------------------|
| 50iMHz | pins 1 & 2 closed |
|--------------------------+---------------------------------|
| 50MHz | pins 5 & 6 closed |
|--------------------------+---------------------------------|
| 66iMHz | pins 1 & 2, 3 & 4, 5 & 6 closed |
|--------------------------+---------------------------------|
| 75iMHz | pins 1 & 2 closed |
|--------------------------+---------------------------------|
| 100iMHz | pins 1 & 2, 3 & 4, 5 & 6 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU CLOCK CONFIGURATION (80486DX4) |
|------------------------------------------------------------|
| Speed | JP29 |
|-----------------------------+------------------------------|
| 2x | Closed |
|-----------------------------+------------------------------|
| 3x | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | JP31 |
|----------------------------+-------------------------------|
| 3.3v | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 5.0v | pins 3 & 4 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT DACK CONFIGURATION |
|------------------------------------------------------------|
| Size | JP4 | JP5 |
|------------------+--------------------+--------------------|
| DRQ3/DACK 3 | pins 1 & 2 closed | pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| DRQ1/DACK 1 | pins 2 & 3 closed | pins 1 & 2 closed |
+------------------------------------------------------------+