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# ELITEGROUP COMPUTER SYSTEMS, INC.
UC4917-G
Processor CXM6/80486SX/CXM6-C6/AM486DX/80486DX/80486DX2/P23N/P23T/
P24T
Processor 25/33/40/50(internal)/50/66(internal)MHz
Speed
Chip Set UMC
Maximum 64MB
Onboard
Memory
Cache 64/128/256KB
BIOS AMI
Dimensions 330mm x 218mm
I/O 32-bit VESA local bus slots (3), green PC connector
Options
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|-------------------+-------+-----------------------+--------|
| External battery | J1 | Turbo LED | JP25 |
|-------------------+-------+-----------------------+--------|
| Speaker | J3 | Reset switch | JP26 |
|-------------------+-------+-----------------------+--------|
| Power LED & | JP23 | Green PC connector | JP32 |
| keylock | | | |
|-------------------+-------+-----------------------+--------|
| Turbo switch | JP24 | 32-bit VESA local bus | SL1 - |
| | | slots | SL3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|---------------------------------------+-------+------------|
| | CMOS memory normal operation | JP1 | Open |
|---+-----------------------------------+-------+------------|
| | CMOS memory clear | JP1 | Closed |
|---+-----------------------------------+-------+------------|
| | BIOS type select EPROM | JP2 | Open |
|---+-----------------------------------+-------+------------|
| | BIOS type select flash BIOS EPROM | JP2 | Closed |
|---+-----------------------------------+-------+------------|
| | Monitor type select color | JP5 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Monitor type select monochrome | JP5 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | VGA card type select normal card | JP6 | Pins 1 & 2 |
| | installed | | closed |
|---+-----------------------------------+-------+------------|
| | VGA card type select Weitek Power | JP6 | Pins 2 & 3 |
| | 9000 only | | closed |
|---+-----------------------------------+-------+------------|
| | PGA enabled | JP20 | Closed |
|---+-----------------------------------+-------+------------|
| | PQFP enabled | JP20 | Open |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | JP29 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 1MB | (1) 256K x | None | None | None |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 2MB | (1) 512K x | None | None | None |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 2MB | (1) 256K x | (1) 256K x | None | None |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 3MB | (1) 512K x | None | (1) 256K x | None |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 3MB | (1) 256K x | (1) 256K x | (1) 256K x | None |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 512K x | None | (1) 256K x | (1) 256K x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 512K x | None | (1) 512K x | None |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 256K x | (1) 256K x | (1) 256K x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 1M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 1M x 36 | (1) 256K x | None | None |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 512K x | None | (1) 1M x | None |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | None |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 7MB | (1) 512K x | None | (1) 1M x | (1) 256K x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 7MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 2M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 9MB | (1) 2M x 36 | None | (1) 256K x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 9MB | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 512K x | None | (1) 1M x | (1) 1M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 512K x | None | (1) 2M x | None |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 2M x 36 | None | (1) 256K x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 2M x 36 | None | (1) 512K x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 2M x 36 | None | (1) 1M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 13MB | (1) 2M x 36 | None | (1) 1M x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 13MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 36 | None | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 36 | None | (1) 2M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 4M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 17MB | (1) 4M x 36 | (1) 256K x | None | None |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 18MB | (1) 512K x | None | (1) 4M x | None |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 18MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | None |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 19MB | (1) 512K x | None | (1) 4M x | (1) 256K x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 19MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 4M x 36 | (1) 1M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 21MB | (1) 4M x 36 | (1) 1M x 36 | (1) 256K x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 22MB | (1) 512K x | None | (1) 4M x | (1) 1M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 22MB | (1) 4M x 36 | (1) 1M x 36 | (1) 256K x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 2M x 36 | None | (1) 4M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 25MB | (1) 2M x 36 | None | (1) 4M x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 25MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 28MB | (1) 2M x 36 | None | (1) 4M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 28MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 33MB | (1) 4M x 36 | (1) 4M x 36 | (1) 256K x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 34MB | (1) 4M x 36 | (1) 4M x 36 | (1) 256K x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 36MB | (1) 512K x | None | (1) 4M x | (1) 4M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 36MB | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 37MB | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 2M x 36 | None | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 49MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 52MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE SIZE |
|------------------------------------------------------------|
| 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 | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER |
|------------------------------------------------------------|
| Size | JP17 | JP18 | JP21 | JP22 |
|-------+-----------------+----------------+--------+--------|
| 64KB | Pins 1 & 2 | Open | Open | Open |
| | closed | | | |
|-------+-----------------+----------------+--------+--------|
| 128KB | Pins 2 & 3 | Pins 2 & 3 | Closed | Open |
| | closed | closed | | |
|-------+-----------------+----------------+--------+--------|
| 256KB | Pins 1 & 2 | Pins 1 & 2 | Closed | Closed |
| | closed | closed | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE |
|------------------------------------------------------------|
| Setting | JP13 |
|----------------------------+-------------------------------|
| CXM6 | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 80486SX | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| CXM6/C6 | Pins 1 & 2, 3 & 4 closed |
|----------------------------+-------------------------------|
| AM486DX | Pins 1 & 2, 3 & 4 closed |
|----------------------------+-------------------------------|
| 80486DX | Pins 1 & 2, 3 & 4 closed |
|----------------------------+-------------------------------|
| 80486DX2 | Pins 1 & 2, 3 & 4 closed |
|----------------------------+-------------------------------|
| P23N | Pins 1 & 2, 3 & 4 closed |
|----------------------------+-------------------------------|
| P23T | Pins 1 & 2, 3 & 4 closed |
|----------------------------+-------------------------------|
| P24T | Pins 1 & 2, 3 & 4 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE (CYRIX ONLY) |
|------------------------------------------------------------|
| Setting | JP9 | JP14 | JP19 |
|---------------------+------------+------------+------------|
| C6 or M6/C6 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
| installed | closed | closed | closed |
|---------------------+------------+------------+------------|
| C6 or M6/C6 not | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 |
| installed | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED |
|------------------------------------------------------------|
| Setting | JP7 | JP8 | JP30 |
|---------------+--------------+--------------+--------------|
| 25MHz | Closed | Open | Open |
|---------------+--------------+--------------+--------------|
| 33MHz | Closed | Closed | Closed |
|---------------+--------------+--------------+--------------|
| 40MHz | Closed | Closed | Open |
|---------------+--------------+--------------+--------------|
| 50iMHz | Closed | Open | Open |
|---------------+--------------+--------------+--------------|
| 50MHz | Open | Open | Closed |
|---------------+--------------+--------------+--------------|
| 66iMHz | Closed | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED |
|------------------------------------------------------------|
| Setting | JP11 | JP31 |
|------------------+--------------------+--------------------|
| < = 40MHz | Pins 2 & 3 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| 50MHz | Pins 1 & 2 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU CLOCK (CYRIX ONLY) |
|------------------------------------------------------------|
| Setting | JP33 |
|-------------------------------+----------------------------|
| 1x (CX486DX) | Open |
|-------------------------------+----------------------------|
| 2x (CX486DX2) | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VL BUS SPEED |
|------------------------------------------------------------|
| Setting | JP15 |
|-------------------------------+----------------------------|
| <= 33MHz | Open |
|-------------------------------+----------------------------|
| > 33MHz | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VL BUS WAIT STATE |
|------------------------------------------------------------|
| Setting | JP16 |
|-------------------------------+----------------------------|
| 0 wait states | Open |
|-------------------------------+----------------------------|
| 1 wait state | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| POWER MANAGEMENT IRQ |
|------------------------------------------------------------|
| Setting | JP27 | JP28 |
|------------------+--------------------+--------------------|
| IRQ3 | N/A | Pins 7 & 8 closed |
|------------------+--------------------+--------------------|
| IRQ5 | Pins 1 & 2 closed | N/A |
|------------------+--------------------+--------------------|
| IRQ7 | Pins 3 & 4 closed | N/A |
|------------------+--------------------+--------------------|
| IRQ9 | Pins 5 & 6 closed | N/A |
|------------------+--------------------+--------------------|
| IRQ10 | N/A | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| IRQ11 | N/A | Pins 3 & 4 closed |
|------------------+--------------------+--------------------|
| IRQ15 | N/A | Pins 5 & 6 closed |
+------------------------------------------------------------+