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# ATC/UNITRON COMPUTERS & COMPUTER PARTS
U 6921
Processor umc486/(SL)AM486SX/80486SX/SL80486SX/CXM7/AM486DX/(SL)AM486DX/80486DX/SL80486DX/AM486DX2/(SL)AM486D2/80486DX2/SL80486DX2/
AM486DX4/(SL)486DX4/80486DX4/SL80486DX4/CXM9/P24D/P24T
Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set SIS
Max. 128MB
Onboard
DRAM
Cache 128/256/512KB
BIOS Award
Dimensions 220mm x 220mm
I/O 32-bit PCI slots (3), green PC connector, IDE interfaces (2)
Options
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------------+----------+-----------------+----------|
| External battery | JP1 | Turbo LED | JP38 |
|--------------------+----------+-----------------+----------|
| IDE interface 2 | JP7 | Reset switch | JP39 |
|--------------------+----------+-----------------+----------|
| IDE interface 1 | JP8 | Turbo switch | JP40 |
|--------------------+----------+-----------------+----------|
| Speaker | JP28 | Power LED & | JP41 |
| | | keylock | |
|--------------------+----------+-----------------+----------|
| IDE interface LED | JP32 | Green PC LED | LED1 |
|--------------------+----------+-----------------+----------|
| Green PC connector | JP36 | 32-bit PCI | PC1 - |
| | | slots | PC3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Monitor type select color | JP6 | Closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | JP6 | Open |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP14 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP15 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Flash BIOS EPROM | JP21 | Open |
|---+----------------------------------+--------+------------|
| | Flash BIOS voltage select 12v | JP21 | Pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Flash BIOS voltage select 5v | JP21 | Pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Turbo enabled | JP40 | Pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Turbo disabled | JP40 | Pins 1 & 2 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 | |
|------+-------------+-------------+------------+------------|
| 3MB | (1) 256K x | (1) 512K x | None | None |
| | 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) 512K x | (1) 256K x | (1) 256K x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 256K x | (1) 512K x | (1) 512K x | None |
| | 36 | 36 | 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 | |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 512K x | (1) 1M x 36 | None | None |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 7MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 7MB | (1) 256K x | (1) 512K x | (1) 512K x | (1) 512K x |
| | 36 | 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 |
|------+-------------+-------------+------------+------------|
| 9MB | (1) 2M x 36 | (1) 256K x | None | None |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 9MB | (1) 256K x | (1) 1M x 36 | (1) 1M x | None |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 9MB | (1) 256K x | (1) 2M x 36 | 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 |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 512K x | (1) 1M x 36 | (1) 1M x | None |
| | 36 | | 36 | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 512K x | (1) 2M x 36 | None | None |
| | 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 36 | None | None |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 1M x 36 | (1) 2M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 13MB | (1) 256K x | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 14MB | (1) 2M x 36 | (1) 512K x | (1) 512K x | (1) 512K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 14MB | (1) 512K x | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 4M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 36 | (1) 1M x 36 | (1) 1M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 36 | (1) 2M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 17MB | (1) 4M x 36 | (1) 256K x | None | None |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 17MB | (1) 256K x | (1) 2M x 36 | (1) 2M x | None |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 17MB | (1) 256K x | (1) 4M x 36 | 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 | | |
|------+-------------+-------------+------------+------------|
| 18MB | (1) 512K x | (1) 2M x 36 | (1) 2M x | None |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 18MB | (1) 512K x | (1) 4M x 36 | 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 36 | None | None |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 2M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 1M x 36 | (1) 2M x 36 | (1) 2M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 1M x 36 | (1) 4M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 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 36 | (1) 1M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 4M x 36 | (1) 2M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 2M x 36 | (1) 4M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 25MB | (1) 256K x | (1) 2M x 36 | (1) 2M x | (1) 2M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 26MB | (1) 512K x | (1) 2M x 36 | (1) 2M x | (1) 2M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 28MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 28MB | (1) 1M x 36 | (1) 2M x 36 | (1) 2M x | (1) 2M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 8M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 2M x 36 | (1) 2M x | None |
| | | | 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 |
|------+-------------+-------------+------------+------------|
| 33MB | (1) 8M x 36 | (1) 256K x | None | None |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 33MB | (1) 256K x | (1) 4M x 36 | (1) 4M x | None |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 33MB | (1) 256K x | (1) 8M x 36 | None | None |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 34MB | (1) 8M x 36 | (1) 256K x | (1) 256K x | None |
| | | 36 | 36 | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 34MB | (1) 8M x 36 | (1) 512K x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 34MB | (1) 512K x | (1) 4M x | (1) 4M x | None |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 34MB | (1) 512K x | (1) 8M x | None | None |
| | 36 | 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 | | |
|-------+-------------+------------+------------+------------|
| 36MB | (1) 1M x 36 | (1) 4M x | (1) 4M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 36MB | (1) 1M x 36 | (1) 8M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 38MB | (1) 8M x 36 | (1) 512K x | (1) 512K x | (1) 512K x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 8M x 36 | (1) 1M x | (1) 1M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 8M x 36 | (1) 2M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 4M x 36 | (1) 2M x | (1) 2M x | (1) 2M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 2M x 36 | (1) 4M x | (1) 4M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 2M x 36 | (1) 8M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 44MB | (1) 8M x 36 | (1) 1M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 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 | |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 4M x 36 | (1) 8M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 49MB | (1) 256K x | (1) 4M x | (1) 4M x | (1) 4M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 50MB | (1) 512K x | (1) 4M x | (1) 4M x | (1) 4M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 52MB | (1) 1M x 36 | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 56MB | (1) 8M x 36 | (1) 2M x | (1) 2M x | (1) 2M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 56MB | (1) 2M x 36 | (1) 4M x | (1) 4M x | (1) 4M 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 |
|-------+-------------+------------+------------+------------|
| 65MB | (1) 256K x | (1) 8M x | (1) 8M x | None |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 66MB | (1) 512K x | (1) 8M x | (1) 8M x | None |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 68MB | (1) 1M x 36 | (1) 8M x | (1) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 72MB | (1) 2M x 36 | (1) 8M x | (1) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 80MB | (1) 8M x 36 | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 80MB | (1) 4M x 36 | (1) 8M x | (1) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 96MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 97MB | (1) 256K x | (1) 8M x | (1) 8M x | (1) 8M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 98MB | (1) 512K x | (1) 8M x | (1) 8M x | (1) 8M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 100MB | (1) 1M x 36 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 104MB | (1) 2M x 36 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 112MB | (1) 4M x 36 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG |
|------------------+--------------------+--------------------|
| 128KB | (4) 32K x 8 | (1) 8K x 8 |
|------------------+--------------------+--------------------|
| 256KB | (4) 64K x 8 | (1) 32K x 8 |
|------------------+--------------------+--------------------|
| 512KB | (4) 128K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP9 | JP10 |
|------------------+--------------------+--------------------|
| 128KB | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 256KB | Pins 2 & 3 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 512KB | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP11 | JP12 | JP17 | JP18 | JP19 |
|-------------------+--------+-------+-------+-------+-------|
| UMC486 | 2 & 3 | Open | Open | Open | Open |
|-------------------+--------+-------+-------+-------+-------|
| (SL)AM486SX | 2 & 3 | 2 & 3 | Open | 2 & 3 | 1 & 2 |
|-------------------+--------+-------+-------+-------+-------|
| 804846SX | Open | 2 & 3 | Open | Open | Open |
|-------------------+--------+-------+-------+-------+-------|
| SL804846SX | Open | 2 & 3 | Open | Open | Open |
|-------------------+--------+-------+-------+-------+-------|
| CXM7 | 2 & 3 | 2 & 3 | Open | Open | Open |
|-------------------+--------+-------+-------+-------+-------|
| AM486DX | 2 & 3 | 2 & 3 | Open | Open | 1 & 2 |
|-------------------+--------+-------+-------+-------+-------|
| (SL)AM486DX | 2 & 3 | 2 & 3 | Open | 2 & 3 | 1 & 2 |
|-------------------+--------+-------+-------+-------+-------|
| 80486DX | 2 & 3 | 2 & 3 | Open | Open | 1 & 2 |
|-------------------+--------+-------+-------+-------+-------|
| SL80486DX | 2 & 3 | 2 & 3 | Open | Open | Open |
|-------------------+--------+-------+-------+-------+-------|
| AM486DX2 | 2 & 3 | 2 & 3 | Open | Open | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| (SL)AM486DX2 | 2 & 3 | 2 & 3 | Open | 2 & 3 | 1 & 2 |
|-------------------+--------+-------+-------+-------+-------|
| 80486DX2 | 2 & 3 | 2 & 3 | Open | Open | Open |
|-------------------+--------+-------+-------+-------+-------|
| SL80486DX2 | 2 & 3 | 2 & 3 | Open | Open | Open |
|-------------------+--------+-------+-------+-------+-------|
| AM486DX4 | 2 & 3 | 2 & 3 | Open | Open | 1 & 2 |
|-------------------+--------+-------+-------+-------+-------|
| (SL)AM486DX4 | 2 & 3 | 2 & 3 | Open | 2 & 3 | 1 & 2 |
|-------------------+--------+-------+-------+-------+-------|
| 80486DX4 (2x) | 2 & 3 | 2 & 3 | Open | Open | 1 & 2 |
|-------------------+--------+-------+-------+-------+-------|
| SL80486DX4 (2x) | 2 & 3 | 2 & 3 | Open | Open | Open |
|-------------------+--------+-------+-------+-------+-------|
| 80486DX4 (2.5x) | 2 & 3 | 2 & 3 | Open | Open | 1 & 2 |
|-------------------+--------+-------+-------+-------+-------|
| SL80486DX4 (2.5x) | 2 & 3 | 2 & 3 | Open | Open | Open |
|-------------------+--------+-------+-------+-------+-------|
| 80486DX4 (3x) | 2 & 3 | 2 & 3 | Open | Open | 1 & 2 |
|-------------------+--------+-------+-------+-------+-------|
| SL80486DX4 (3x) | 2 & 3 | 2 & 3 | Open | Open | Open |
|-------------------+--------+-------+-------+-------+-------|
| CXM9 (2x) | 2 & 3 | 1 & 2 | Open | 1 & 2 | Open |
|-------------------+--------+-------+-------+-------+-------|
| CXM9 (3x) | 2 & 3 | 1 & 2 | Open | 1 & 2 | Open |
|-------------------+--------+-------+-------+-------+-------|
| P24D (WB) | 2 & 3 | 1 & 2 | Open | 1 & 2 | 1 & 2 |
|-------------------+--------+-------+-------+-------+-------|
| P24D (WT) | 2 & 3 | 1 & 2 | Open | 1 & 2 | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| P24T (WB) | 1 & 2 | 1 & 2 | 2 & 3 | Open | Open |
|-------------------+--------+-------+-------+-------+-------|
| P24T (WT) | 1 & 2 | 1 & 2 | 1 & 2 | Open | Open |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP20 | JP22 | JP23 | JP24 | JP25 |
|-------------------+--------+--------+------+-------+-------|
| UMC486 | Open | Open | Open | Open | Open |
|-------------------+--------+--------+------+-------+-------|
| (SL)AM486SX | 2 & 3 | Closed | Open | 4 & 5 | 4 & 5 |
|-------------------+--------+--------+------+-------+-------|
| 804846SX | Open | Open | Open | Open | Open |
|-------------------+--------+--------+------+-------+-------|
| SL804846SX | 2 & 3 | Closed | Open | 1 & 2 | 4 & 5 |
|-------------------+--------+--------+------+-------+-------|
| CXM7 | 1 & 2 | Closed | Open | Open | 2 & 3 |
|-------------------+--------+--------+------+-------+-------|
| AM486DX | Open | Open | Open | Open | 4 & 5 |
|-------------------+--------+--------+------+-------+-------|
| (SL)AM486DX | 2 & 3 | Closed | Open | 4 & 5 | 4 & 5 |
|-------------------+--------+--------+------+-------+-------|
| 80486DX | Open | Open | Open | Open | 4 & 5 |
|-------------------+--------+--------+------+-------+-------|
| SL80486DX | 2 & 3 | Closed | Open | 1 & 2 | 4 & 5 |
|-------------------+--------+--------+------+-------+-------|
| AM486DX2 | Open | Open | Open | Open | 4 & 5 |
|-------------------+--------+--------+------+-------+-------|
| (SL)AM486DX2 | 2 & 3 | Closed | Open | 4 & 5 | 4 & 5 |
|-------------------+--------+--------+------+-------+-------|
| 80486DX2 | 2 & 3 | Closed | Open | 1 & 2 | 4 & 5 |
|-------------------+--------+--------+------+-------+-------|
| SL80486DX2 | 2 & 3 | Closed | Open | 1 & 2 | 4 & 5 |
|-------------------+--------+--------+------+-------+-------|
| AM486DX4 | Open | Open | Open | Open | 4 & 5 |
|-------------------+--------+--------+------+-------+-------|
| (SL)AM486DX4 | 2 & 3 | Closed | Open | 4 & 5 | 4 & 5 |
|-------------------+--------+--------+------+-------+-------|
| 80486DX4 (2x) | Open | Open | Open | Open | 4 & 5 |
|-------------------+--------+--------+------+-------+-------|
| SL80486DX4 (2x) | 2 & 3 | Closed | Open | 1 & 2 | 4 & 5 |
|-------------------+--------+--------+------+-------+-------|
| 80486DX4 (2.5x) | Open | Open | Open | Open | 4 & 5 |
|-------------------+--------+--------+------+-------+-------|
| SL80486DX4 (2.5x) | 2 & 3 | Closed | Open | 1 & 2 | 4 & 5 |
|-------------------+--------+--------+------+-------+-------|
| 80486DX4 (3x) | Open | Open | Open | Open | 4 & 5 |
|-------------------+--------+--------+------+-------+-------|
| SL80486DX4 (3x) | 2 & 3 | Closed | Open | 1 & 2 | 4 & 5 |
|-------------------+--------+--------+------+-------+-------|
| CXM9 (2x) | Open | Closed | Open | 2 & 3 | 2 & 3 |
|-------------------+--------+--------+------+-------+-------|
| CXM9 (3x) | Open | Closed | Open | 2 & 3 | 2 & 3 |
|-------------------+--------+--------+------+-------+-------|
| P24D (WB) | 2 & 3 | Closed | Open | 2 & 3 | 4 & 5 |
|-------------------+--------+--------+------+-------+-------|
| P24D (WT) | 2 & 3 | Closed | Open | 2 & 3 | 4 & 5 |
|-------------------+--------+--------+------+-------+-------|
| P24T (WB) | 2 & 3 | Closed | Open | Open | 1 & 2 |
|-------------------+--------+--------+------+-------+-------|
| P24T (WT) | 2 & 3 | Closed | Open | Open | 1 & 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP26 | JP27 | JP29 | JP33 | JP34 |
|----------------+----------+--------+-------+-------+-------|
| UMC486 | 2 & 3 | Open | Open | Open | Open |
|----------------+----------+--------+-------+-------+-------|
| (SL)AM486SX | 2 & 3 | 3 & 4 | Open | Open | 1 & 2 |
|----------------+----------+--------+-------+-------+-------|
| 804846SX | 2 & 3 | Open | Open | Open | Open |
|----------------+----------+--------+-------+-------+-------|
| SL804846SX | 2 & 3 | 3 & 4 | Open | Open | Open |
|----------------+----------+--------+-------+-------+-------|
| CXM7 | 1 & 2, 3 | 2 & 3 | Open | 2 & 3 | 2 & 3 |
| | & 4 | | | | |
|----------------+----------+--------+-------+-------+-------|
| AM486DX | 1 & 2, 3 | 3 & 4 | Open | Open | Open |
| | & 4 | | | | |
|----------------+----------+--------+-------+-------+-------|
| (SL)AM486DX | 1 & 2, 3 | 3 & 4 | Open | Open | 1 & 2 |
| | & 4 | | | | |
|----------------+----------+--------+-------+-------+-------|
| 80486DX | 1 & 2, 3 | 3 & 4 | Open | Open | Open |
| | & 4 | | | | |
|----------------+----------+--------+-------+-------+-------|
| SL80486DX | 1 & 2, 3 | 3 & 4 | Open | Open | Open |
| | & 4 | | | | |
|----------------+----------+--------+-------+-------+-------|
| AM486DX2 | 1 & 2, 3 | 3 & 4 | Open | Open | Open |
| | & 4 | | | | |
|----------------+----------+--------+-------+-------+-------|
| (SL)AM486DX2 | 1 & 2, 3 | 3 & 4 | Open | Open | 1 & 2 |
| | & 4 | | | | |
|----------------+----------+--------+-------+-------+-------|
| 80486DX2 | 1 & 2, 3 | 3 & 4 | Open | Open | Open |
| | & 4 | | | | |
|----------------+----------+--------+-------+-------+-------|
| SL80486DX2 | 1 & 2, 3 | 3 & 4 | Open | Open | Open |
| | & 4 | | | | |
|----------------+----------+--------+-------+-------+-------|
| AM486DX4 | 1 & 2, 3 | 3 & 4 | Open | Open | Open |
| | & 4 | | | | |
|----------------+----------+--------+-------+-------+-------|
| (SL)AM486DX4 | 1 & 2, 3 | 3 & 4 | Open | Open | 1 & 2 |
| | & 4 | | | | |
|----------------+----------+--------+-------+-------+-------|
| 80486DX4 (2x) | 1 & 2, 3 | 3 & 4 | 2 & 3 | Open | Open |
| | & 4 | | | | |
|----------------+----------+--------+-------+-------+-------|
| SL80486DX4 | 1 & 2, 3 | 3 & 4 | 2 & 3 | Open | Open |
| (2x) | & 4 | | | | |
|----------------+----------+--------+-------+-------+-------|
| 80486DX4 | 1 & 2, 3 | 3 & 4 | 1 & 2 | Open | Open |
| (2.5x) | & 4 | | | | |
|----------------+----------+--------+-------+-------+-------|
| SL80486DX4 | 1 & 2, 3 | 3 & 4 | 1 & 2 | Open | Open |
| (2.5x) | & 4 | | | | |
|----------------+----------+--------+-------+-------+-------|
| 80486DX4 (3x) | 1 & 2, 3 | 3 & 4 | Open | Open | Open |
| | & 4 | | | | |
|----------------+----------+--------+-------+-------+-------|
| SL80486DX4 | 1 & 2, 3 | 3 & 4 | Open | Open | Open |
| (3x) | & 4 | | | | |
|----------------+----------+--------+-------+-------+-------|
| CXM9 (2x) | 1 & 2, 3 | 1 & 2, | 2 & 3 | Open | 1 & 2 |
| | & 4 | 3 & 4 | | | |
|----------------+----------+--------+-------+-------+-------|
| CXM9 (3x) | 1 & 2, 3 | 1 & 2, | Open | Open | 1 & 2 |
| | & 4 | 3 & 4 | | | |
|----------------+----------+--------+-------+-------+-------|
| P24D (WB) | 1 & 2, 3 | 1 & 2, | Open | Open | 1 & 2 |
| | & 4 | 3 & 4 | | | |
|----------------+----------+--------+-------+-------+-------|
| P24D (WT) | 1 & 2, 3 | 1 & 2, | Open | Open | 1 & 2 |
| | & 4 | 3 & 4 | | | |
|----------------+----------+--------+-------+-------+-------|
| P24T (WB) | 1 & 2, 3 | 3 & 4 | Open | 1 & 2 | 1 & 2 |
| | & 4 | | | | |
|----------------+----------+--------+-------+-------+-------|
| P24T (WT) | 1 & 2, 3 | 3 & 4 | Open | 1 & 2 | 1 & 2 |
| | & 4 | | | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP13 | JP16 |
|------------+--------------------+--------------------------|
| 25MHz | Pins 1 & 2 closed | Open |
|------------+--------------------+--------------------------|
| 33MHz | Pins 1 & 2 closed | Pins 1 & 2, 3 & 4 closed |
|------------+--------------------+--------------------------|
| 40MHz | Pins 2 & 3 closed | Pins 1 & 2 closed |
|------------+--------------------+--------------------------|
| 50iMHz | Pins 1 & 2 closed | Open |
|------------+--------------------+--------------------------|
| 50MHz | Pins 2 & 3 closed | Pins 3 & 4 closed |
|------------+--------------------+--------------------------|
| 66iMHz | Pins 1 & 2 closed | Pins 1 & 2, 3 & 4 closed |
|------------+--------------------+--------------------------|
| 75iMHz | Pins 1 & 2 closed | Open |
|------------+--------------------+--------------------------|
| 100iMHz | Pins 1 & 2 closed | Pins 1 & 2, 3 & 4 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | JP30 | JP31 | JP35 |
|---------+----------------+----------------+----------------|
| 3.3v | Pins 2 & 3 | Pins 5 & 6 | Pins 2 & 3 |
| | closed | closed | closed |
|---------+----------------+----------------+----------------|
| 3.45v | Pins 2 & 3 | Pins 3 & 4 | Pins 2 & 3 |
| | closed | closed | closed |
|---------+----------------+----------------+----------------|
| 4v | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 |
| | closed | closed | closed |
|---------+----------------+----------------+----------------|
| 5v | Pins 1 & 2 | Any setting | Pins 1 & 2 |
| | closed | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS CONFIGURATION |
|------------------------------------------------------------|
| Setting | JP2 | JP3 |
|--------------------+-------------------+-------------------|
| CMOS memory normal | Pins 1 & 2 closed | Pins 1 & 2 closed |
| operation | | |
|--------------------+-------------------+-------------------|
| CMOS memory clear | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| GREEN PC CONFIGURATION |
|------------------------------------------------------------|
| Setting | JP37 |
|----------------------------+-------------------------------|
| Doze mode | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| Suspend mode | Pins 3 & 4 closed |
|----------------------------+-------------------------------|
| Standby mode | Pins 5 & 6, 7 & 8 closed |
+------------------------------------------------------------+