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# ELITEGROUP COMPUTER SYSTEMS, INC.
UP8812 AIO
Processor CX486S/80486SX/SL80486SX/CX486DX/AM486DX/80486DX/
SL80486DX(WB)/80486DX(WT)/CX486DX2/AM486DX2/
AM486DX2(SV8B)/80486DX2/SL80486DX2(WB)/SL80486DX2(WT)/
80486DX2(ODPR)/CX486DX4/AM486DX4(NV8T)/AM486DX4(SV8B)/
80486DX4(WB)/80486DX4(WT)/P24T/CX5X86/AM5X86
Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/
Speed 100(internal)/120(internal)MHz
Chip Set UMC
Video Chip None
Set
Maximum 128MB
Onboard
Memory
Maximum None
Video
Memory
Cache 128/256/512/1024KB
BIOS Award
Dimensions 254mm x 218mm
I/O 32-bit PCI slots (3), floppy drive interface, green PC
Options connector, IDE interfaces (2), parallel port, PS/2 mouse
interface, serial ports (2)
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------------+----------+---------------+------------|
| Serial port 1 | J3 | Turbo LED | JP31 pins |
| | | | 2 & 3 |
|--------------------+----------+---------------+------------|
| Serial port 2 | J4 | Green PC | JP31 pins |
| | | connector | 4 & 5 |
|--------------------+----------+---------------+------------|
| Parallel port | J5 | Turbo switch | JP31 pins |
| | | | 6 & 7 |
|--------------------+----------+---------------+------------|
| IDE interface 2 | J9 | Reset switch | JP31 pins |
| | | | 9 & 10 |
|--------------------+----------+---------------+------------|
| IDE interface 1 | J10 | Power LED & | JP31 pins |
| | | keylock | 11 - 15 |
|--------------------+----------+---------------+------------|
| Floppy drive | J11 | Speaker | JP31 pins |
| interface | | | 17 - 19 |
|--------------------+----------+---------------+------------|
| IDE interface LED | J13 | 32-bit PCI | PC1 – PC3 |
| | | slots | |
|--------------------+----------+---------------+------------|
| PS/2 mouse | J14 | | |
| interface | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| | BIOS select EPROM | JP1 | Open |
|---+---------------------------------+-------+--------------|
| | Flash BIOS voltage select 12v | JP1 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Flash BIOS voltage select 5v | JP1 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP2 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| | On board I/O enabled | JP3 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | On board I/O disabled | JP3 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP4 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP20 | Unidentified |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| 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 | (1) 256K x | None | None |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 3MB | (1) 256K x | (1) 256K x | (1) 256K x | None |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 1M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 512K x | (1) 256K x | (1) 256K x | None |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 512K x | (1) 512K x | None | None |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 256K x | (1) 256K x | (1) 256K x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 1M x 36 | (1) 256K x | None | None |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 256K x | (1) 1M x 36 | None | None |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | None |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 1M x 36 | (1) 512K x | None | None |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 512K x | (1) 512K x | (1) 512K x | None |
| | 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) 512K x | (1) 512K x | None |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 512K x | (1) 512K x | (1) 512K x | (1) 512K x |
| | 36 | 36 | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 9MB | (1) 2M x 36 | (1) 256K x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 10MB | (1) 2M x 36 | (1) 256K x | (1) 256K x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 10MB | (1) 2M x 36 | (1) 512K x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 10MB | (1) 1M x 36 | (1) 512K x | (1) 512K x | (1) 512K x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 11MB | (1) 2M x 36 | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 12MB | (1) 2M x 36 | (1) 512K x | (1) 512K x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 12MB | (1) 2M x 36 | (1) 1M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 12MB | (1) 1M x 36 | (1) 1M x | (1) 1M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 4M x 36 | None | None | None |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 2M x 36 | (1) 2M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 17MB | (1) 4M x 36 | (1) 256K x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 18MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 18MB | (1) 4M x 36 | (1) 512K x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 19MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 20MB | (1) 4M x 36 | (1) 512K x | (1) 512K x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 20MB | (1) 4M x 36 | (1) 1M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 20MB | (1) 2M x 36 | (1) 1M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 22MB | (1) 4M x 36 | (1) 512K x | (1) 512K x | (1) 512K x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 24MB | (1) 4M x 36 | (1) 1M x | (1) 1M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 24MB | (1) 4M x 36 | (1) 2M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 24MB | (1) 2M x 36 | (1) 2M x | (1) 2M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 28MB | (1) 4M x 36 | (1) 1M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 8M x 36 | None | None | None |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 2M x | (1) 2M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 2M x 36 | (1) 2M x | (1) 2M x | (1) 2M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 33MB | (1) 8M x 36 | (1) 256K x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 34MB | (1) 8M x 36 | (1) 512K x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 35MB | (1) 8M x 36 | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 36MB | (1) 8M x 36 | (1) 512K x | (1) 512K x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 36MB | (1) 8M x 36 | (1) 1M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 8M x 36 | (1) 2M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 8M x 36 | (1) 2M x | (1) 2M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 8M x 36 | (1) 4M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 56MB | (1) 8M x 36 | (1) 2M x | (1) 2M x | (1) 2M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 8M x 36 | (1) 4M x | (1) 4M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 8M x 36 | (1) 8M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 80MB | (1) 8M x 36 | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 96MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|-------------+---------------+---------------+--------------|
| 128KB | (4) 32K x 8 | None | (1) 32K x 8 |
|-------------+---------------+---------------+--------------|
| 256KB (A) | (4) 64K x 8 | None | (1) 32K x 8 |
|-------------+---------------+---------------+--------------|
| 256KB (B) | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
|-------------+---------------+---------------+--------------|
| 512KB (A) | (4) 64K x 8 | (4) 64K x 8 | (1) 32K x 8 |
|-------------+---------------+---------------+--------------|
| 512KB (B) | (4) 128K x 8 | None | (1) 32K x 8 |
|-------------+---------------+---------------+--------------|
| 1MB | (4) 128K x 8 | (4) 128K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP6 | JP7 | JP8 | JP14 | JP19 | JP24 |
|---------+--------+--------+--------+-------+-------+-------|
| 128KB | Open | Open | Open | Open | Open | 2 & 3 |
|---------+--------+--------+--------+-------+-------+-------|
| 256KB | Closed | Open | Open | Open | 1 & 2 | 2 & 3 |
| (A) | | | | | | |
|---------+--------+--------+--------+-------+-------+-------|
| 256KB | Closed | Open | Open | Open | Open | 1 & 2 |
| (B) | | | | | | |
|---------+--------+--------+--------+-------+-------+-------|
| 512KB | Closed | Closed | Open | Open | 2 & 3 | 1 & 2 |
| (A) | | | | | | |
|---------+--------+--------+--------+-------+-------+-------|
| 512KB | Closed | Closed | Open | 1 & 2 | 1 & 2 | 2 & 3 |
| (B) | | | | | | |
|---------+--------+--------+--------+-------+-------+-------|
| 1MB | Closed | Closed | Closed | 2 & 3 | 2 & 3 | 1 & 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| Speed | JP5 |
|--------------------------+---------------------------------|
| 25MHz | Pins 1 & 2 closed |
|--------------------------+---------------------------------|
| 33MHz | Pins 1 & 2, 3 & 4, 5 & 6 closed |
|--------------------------+---------------------------------|
| 40MHz | Pins 1 & 2, 3 & 4 closed |
|--------------------------+---------------------------------|
| 50MHz | Pins 5 & 6 closed |
|--------------------------+---------------------------------|
| 50iMHz | Pins 1 & 2 closed |
|--------------------------+---------------------------------|
| 66iMHz | Pins 1 & 2, 3 & 4, 5 & 6 closed |
|--------------------------+---------------------------------|
| 75iMHz | Pins 1 & 2 closed |
|--------------------------+---------------------------------|
| 80iMHz | Pins 1 & 2, 3 & 4 closed |
|--------------------------+---------------------------------|
| 100iMHz | Pins 1 & 2, 3 & 4, 5 & 6 closed |
|--------------------------+---------------------------------|
| 120iMHz | Pins 1 & 2, 3 & 4 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JP9 | JP10 | JP12 | JP13 | JP15 |
|------------------+--------+-------+--------+-------+-------|
| CX486S | Open | Open | 1 & 2 | 2 & 3 | 2 & 3 |
|------------------+--------+-------+--------+-------+-------|
| 80486SX | Open | Open | 1 & 2 | 1 & 2 | Open |
|------------------+--------+-------+--------+-------+-------|
| SL80486SX | Open | Open | 1 & 2 | 1 & 2 | Open |
|------------------+--------+-------+--------+-------+-------|
| CX486DX | Open | Open | 1 & 2 | 2 & 3 | 2 & 3 |
|------------------+--------+-------+--------+-------+-------|
| AM486DX | Open | Open | 1 & 2 | 1 & 2 | Open |
|------------------+--------+-------+--------+-------+-------|
| 80486DX | Open | Open | 1 & 2 | 1 & 2 | Open |
|------------------+--------+-------+--------+-------+-------|
| SL80486DX (WB) | 1 & 2 | Open | 1 & 2 | 1 & 2 | Open |
|------------------+--------+-------+--------+-------+-------|
| SL80486DX (WT) | 2 & 3 | Open | 1 & 2 | 1 & 2 | Open |
|------------------+--------+-------+--------+-------+-------|
| CX486DX2 | Open | Open | 1 & 2 | 2 & 3 | 2 & 3 |
|------------------+--------+-------+--------+-------+-------|
| AM486DX2 | Open | Open | 1 & 2 | 1 & 2 | Open |
|------------------+--------+-------+--------+-------+-------|
| AM486DX2 (SV8B) | 1 & 2 | Open | 1 & 2 | 1 & 2 | Open |
|------------------+--------+-------+--------+-------+-------|
| 80486DX2 | Open | Open | 1 & 2 | 1 & 2 | Open |
|------------------+--------+-------+--------+-------+-------|
| SL80486DX2 (WB) | 1 & 2 | Open | 1 & 2 | 1 & 2 | Open |
|------------------+--------+-------+--------+-------+-------|
| SL80486DX2 (WT) | 2 & 3 | Open | 1 & 2 | 1 & 2 | Open |
|------------------+--------+-------+--------+-------+-------|
| 80486DX2 (ODPR) | 2 & 3 | Open | 1 & 2 | 1 & 2 | Open |
|------------------+--------+-------+--------+-------+-------|
| CX486DX4 | Open | Open | 1 & 2 | 2 & 3 | 2 & 3 |
|------------------+--------+-------+--------+-------+-------|
| AM486DX4 (NV8T) | Open | Open | 1 & 2 | 1 & 2 | Open |
|------------------+--------+-------+--------+-------+-------|
| AM486DX4 (SV8B) | 1 & 2 | Open | 1 & 2 | 1 & 2 | Open |
|------------------+--------+-------+--------+-------+-------|
| SL80486DX4 (WB) | 1 & 2 | Open | 1 & 2 | 1 & 2 | Open |
|------------------+--------+-------+--------+-------+-------|
| SL80486DX4 (WT) | 2 & 3 | Open | 1 & 2 | 1 & 2 | Open |
|------------------+--------+-------+--------+-------+-------|
| 80486DX4 (ODPR) | 2 & 3 | Open | 1 & 2 | 1 & 2 | Open |
|------------------+--------+-------+--------+-------+-------|
| P24T | Open | Open | 1 & 2 | 1 & 2 | 1 & 2 |
|------------------+--------+-------+--------+-------+-------|
| CX5X86 | 1 & 2 | Open | 1 & 2 | 1 & 2 | Open |
|------------------+--------+-------+--------+-------+-------|
| AM5X86 | 1 & 2 | Open | 1 & 2 | 1 & 2 | Open |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION (CON’T) |
|------------------------------------------------------------|
| Type | JP16 | JP17 | JP18 | JP21 | JP23 |
|-----------------+--------+-------+-------+--------+--------|
| CX486S | 2 & 3 | 1 & 2 | 2 & 3 | Open | Open |
|-----------------+--------+-------+-------+--------+--------|
| 80486SX | Open | Open | 1 & 2 | Open | Open |
|-----------------+--------+-------+-------+--------+--------|
| SL80486SX | Open | 1 & 2 | 2 & 3 | Open | Open |
|-----------------+--------+-------+-------+--------+--------|
| CX486DX | 2 & 3 | 1 & 2 | 2 & 3 | Open | Open |
|-----------------+--------+-------+-------+--------+--------|
| AM486DX | Open | Open | 1 & 2 | Open | Open |
|-----------------+--------+-------+-------+--------+--------|
| 80486DX | Open | Open | 1 & 2 | Open | Open |
|-----------------+--------+-------+-------+--------+--------|
| SL80486DX (WB) | Open | 1 & 2 | 2 & 3 | Open | Open |
|-----------------+--------+-------+-------+--------+--------|
| SL80486DX (WT) | Open | 1 & 2 | 2 & 3 | Open | Open |
|-----------------+--------+-------+-------+--------+--------|
| CX486DX2 | 2 & 3 | 1 & 2 | 2 & 3 | Open | Open |
|-----------------+--------+-------+-------+--------+--------|
| AM486DX2 | Open | Open | 1 & 2 | Open | Open |
|-----------------+--------+-------+-------+--------+--------|
| AM486DX2 (SV8B) | Open | 1 & 2 | 2 & 3 | Open | Open |
|-----------------+--------+-------+-------+--------+--------|
| 80486DX2 | Open | Open | 1 & 2 | Open | Open |
|-----------------+--------+-------+-------+--------+--------|
| SL80486DX2 (WB) | Open | 1 & 2 | 2 & 3 | Open | Open |
|-----------------+--------+-------+-------+--------+--------|
| SL80486DX2 (WT) | Open | 1 & 2 | 2 & 3 | Open | Open |
|-----------------+--------+-------+-------+--------+--------|
| 80486DX2 (ODPR) | Open | 1 & 2 | 2 & 3 | Open | Open |
|-----------------+--------+-------+-------+--------+--------|
| CX486DX4 | 2 & 3 | 1 & 2 | 2 & 3 | Open | Open |
|-----------------+--------+-------+-------+--------+--------|
| AM486DX4 (NV8T) | Open | Open | 1 & 2 | Open | Open |
|-----------------+--------+-------+-------+--------+--------|
| AM486DX4 (SV8B) | Open | 1 & 2 | 2 & 3 | Open | Open |
|-----------------+--------+-------+-------+--------+--------|
| SL80486DX4 (WB) | Open | 1 & 2 | 2 & 3 | Open | Open |
|-----------------+--------+-------+-------+--------+--------|
| SL80486DX4 (WT) | Open | 1 & 2 | 2 & 3 | Open | Open |
|-----------------+--------+-------+-------+--------+--------|
| 80486DX4 (ODPR) | Open | 1 & 2 | 2 & 3 | Open | Open |
|-----------------+--------+-------+-------+--------+--------|
| P24T | Open | 1 & 2 | 1 & 2 | Open | Closed |
|-----------------+--------+-------+-------+--------+--------|
| CX5X86 | Open | 1 & 2 | 2 & 3 | Open | Open |
|-----------------+--------+-------+-------+--------+--------|
| AM5X86 | Open | 1 & 2 | 2 & 3 | Closed | Open |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION (CON’T) |
|------------------------------------------------------------|
| Type | JP25 | JP26 | JP27 | JP28 | JP29 |
|-------------+--------+-------+-------+----------+----------|
| CX486S | 2 & 3 | Open | 2 & 3 | 2 & 3 | 1 & 2, 3 |
| | | | | | & 4 |
|-------------+--------+-------+-------+----------+----------|
| 80486SX | Open | Open | Open | 2 & 3 | Open |
|-------------+--------+-------+-------+----------+----------|
| SL80486SX | 1 & 2 | Open | Open | 2 & 3 | 2 & 3, 4 |
| | | | | | & 5 |
|-------------+--------+-------+-------+----------+----------|
| CX486DX | 2 & 3 | 1 & 2 | 2 & 3 | 1 & 2, 3 | 1 & 2, 3 |
| | | | | & 4 | & 4 |
|-------------+--------+-------+-------+----------+----------|
| AM486DX | Open | 1 & 2 | Open | 1 & 2, 3 | Open |
| | | | | & 4 | |
|-------------+--------+-------+-------+----------+----------|
| 80486DX | Open | 1 & 2 | Open | 1 & 2, 3 | Open |
| | | | | & 4 | |
|-------------+--------+-------+-------+----------+----------|
| SL80486DX | 1 & 2, | 1 & 2 | Open | 1 & 2, 3 | 2 & 3, 4 |
| (WB) | 3 & 4 | | | & 4 | & 5 |
|-------------+--------+-------+-------+----------+----------|
| SL80486DX | 1 & 2 | 1 & 2 | Open | 1 & 2, 3 | 2 & 3, 4 |
| (WT) | | | | & 4 | & 5 |
|-------------+--------+-------+-------+----------+----------|
| CX486DX2 | 2 & 3 | 1 & 2 | 2 & 3 | 1 & 2, 3 | 1 & 2, 3 |
| | | | | & 4 | & 4 |
|-------------+--------+-------+-------+----------+----------|
| AM486DX2 | Open | 1 & 2 | Open | 1 & 2, 3 | Open |
| | | | | & 4 | |
|-------------+--------+-------+-------+----------+----------|
| AM486DX2 | 1 & 2, | 1 & 2 | Open | 1 & 2, 3 | 2 & 3, 4 |
| (SV8B) | 3 & 4 | | | & 4 | & 5 |
|-------------+--------+-------+-------+----------+----------|
| 80486DX2 | Open | 1 & 2 | Open | 1 & 2, 3 | Open |
| | | | | & 4 | |
|-------------+--------+-------+-------+----------+----------|
| SL80486DX2 | 1 & 2, | 1 & 2 | Open | 1 & 2, 3 | 2 & 3, 4 |
| (WB) | 3 & 4 | | | & 4 | & 5 |
|-------------+--------+-------+-------+----------+----------|
| SL80486DX2 | 1 & 2 | 1 & 2 | Open | 1 & 2, 3 | 2 & 3, 4 |
| (WT) | | | | & 4 | & 5 |
|-------------+--------+-------+-------+----------+----------|
| 80486DX2 | 1 & 2 | 1 & 2 | Open | 1 & 2, 3 | 2 & 3, 4 |
| (ODPR) | | | | & 4 | & 5 |
|-------------+--------+-------+-------+----------+----------|
| CX486DX4 | 2 & 3 | 1 & 2 | 2 & 3 | 1 & 2, 3 | 1 & 2, 3 |
| | | | | & 4 | & 4 |
|-------------+--------+-------+-------+----------+----------|
| AM486DX4 | Open | 1 & 2 | Open | 1 & 2, 3 | Open |
| (NV8T) | | | | & 4 | |
|-------------+--------+-------+-------+----------+----------|
| AM486DX4 | 1 & 2, | 1 & 2 | Open | 1 & 2, 3 | 2 & 3, 4 |
| (SV8B) | 3 & 4 | | | & 4 | & 5 |
|-------------+--------+-------+-------+----------+----------|
| SL80486DX4 | 1 & 2, | 1 & 2 | Open | 1 & 2, 3 | 2 & 3, 4 |
| (WB) | 3 & 4 | | | & 4 | & 5 |
|-------------+--------+-------+-------+----------+----------|
| SL80486DX4 | 1 & 2 | 1 & 2 | Open | 1 & 2, 3 | 2 & 3, 4 |
| (WT) | | | | & 4 | & 5 |
|-------------+--------+-------+-------+----------+----------|
| 80486DX4 | 1 & 2 | 1 & 2 | Open | 1 & 2, 3 | 2 & 3, 4 |
| (ODPR) | | | | & 4 | & 5 |
|-------------+--------+-------+-------+----------+----------|
| P24T | 1 & 2 | 2 & 3 | 1 & 2 | 1 & 2, 3 | 2 & 3, 4 |
| | | | | & 4 | & 5 |
|-------------+--------+-------+-------+----------+----------|
| CX5X86 | 1 & 2, | 1 & 2 | Open | 1 & 2, 3 | 2 & 3, 4 |
| | 3 & 4 | | | & 4 | & 5 |
|-------------+--------+-------+-------+----------+----------|
| AM5X86 | 1 & 2, | 1 & 2 | Open | 1 & 2, 3 | 2 & 3, 4 |
| | 3 & 4 | | | & 4 | & 5 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | JP30 | JP32 | JP33 |
|---------+----------------+----------------+----------------|
| 3.3v | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 |
| | closed | closed | closed |
|---------+----------------+----------------+----------------|
| 3.45v | Pins 3 & 4 | Pins 2 & 3 | Pins 2 & 3 |
| | closed | closed | closed |
|---------+----------------+----------------+----------------|
| 3.6v | Pins 5 & 6 | Pins 2 & 3 | Pins 2 & 3 |
| | closed | closed | closed |
|---------+----------------+----------------+----------------|
| 4v | Pins 7 & 8 | Pins 2 & 3 | Pins 2 & 3 |
| | closed | closed | closed |
|---------+----------------+----------------+----------------|
| 5v | Open | Pins 1 & 2 | Pins 1 & 2 |
| | | closed | closed |
+------------------------------------------------------------+