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# PC WARE INTERNATIONAL, INC.
MB-U88IVIPIM
Processor CX486DX/IBM486DX/TI486DX/SGS486DX/80486DX/CX486DX2/
IBM486DX2/TI486DX2/SGS486DX2/AM486DX2/80486DX2/
CX486DX4/IBM486DX4/TI486DX4/SGS486DX4/AM486DX4/
80486DX4/P24D/CX5X86/AM K5
Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/
Speed 100(internal)/ 120(internal)/133MHz
Chip Set UMC
Video Chip None
Set
Maximum 128MB
Onboard
Memory
Maximum None
Video
Memory
Cache 128/256/512/1024KB
BIOS AMI
Dimensions 250mm x 220mm
I/O 32-bit VESA local bus slot, 32-bit PCI slots (3), floppy drive
Options interface, green PC connector, IDE interfaces (2), parallel
port, serial ports (2), cache slot
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Serial port 1 | CN1 | Turbo LED | J10 |
|-------------------+----------+------------------+----------|
| Serial port 2 | CN2 | Reset switch | J11 |
|-------------------+----------+------------------+----------|
| Parallel port | CN3 | Turbo switch | J12 |
|-------------------+----------+------------------+----------|
| Floppy drive | CN4 | IDE interface | J13 |
| interface | | LED | |
|-------------------+----------+------------------+----------|
| IDE interface 1 | CN5 | Green PC | J14 |
| | | connector | |
|-------------------+----------+------------------+----------|
| IDE interface 2 | CN6 | 32-bit PCI slots | PC1 - |
| | | | PC3 |
|-------------------+----------+------------------+----------|
| External battery | J4 | 32-bit VESA | SL1 |
| | | local bus slot | |
|-------------------+----------+------------------+----------|
| Power LED & | J8 | Cache slot | SL2 |
| keylock | | | |
|-------------------+----------+------------------+----------|
| Speaker | J9 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+-------+------------|
| » | Battery type select internal | J4 | Closed |
|---+-----------------------------------+-------+------------|
| | Battery type select external | J4 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | CMOS memory clear | J4 | Pins 3 & 4 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Factory configured - do not alter | JP1 | N/A |
|---+-----------------------------------+-------+------------|
| » | Flash BIOS voltage select 12v | JP2 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Flash BIOS voltage select 5v | JP2 | Pins 2 & 3 |
| | | | closed |
|------------------------------------------------------------|
| Note: The location of JP2 is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 1MB | (4) 256K x 9 | None | None |
|------------+---------------+---------------+---------------|
| 1MB | None | (1) 256K x 36 | None |
|------------+---------------+---------------+---------------|
| 2MB | (4) 256K x 9 | (1) 256K x 36 | None |
|------------+---------------+---------------+---------------|
| 2MB | None | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 3MB | (4) 256K x 9 | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 4MB | (4) 1M x 9 | None | None |
|------------+---------------+---------------+---------------|
| 4MB | None | (1) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 5MB | (4) 1M x 9 | (1) 256K x 36 | None |
|------------+---------------+---------------+---------------|
| 5MB | (4) 256K x 9 | (1) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 6MB | (4) 1M x 9 | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 8MB | (4) 1M x 9 | (1) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 8MB | None | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 8MB | None | (1) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 9MB | (4) 256K x 9 | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 9MB | (4) 256K x 9 | (1) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 12MB | (4) 1M x 9 | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 12MB | (4) 1M x 9 | (1) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 16MB | (4) 4M x 9 | None | None |
|------------+---------------+---------------+---------------|
| 16MB | None | (1) 2M x 36 | (1) 2M x 36 |
|------------+---------------+---------------+---------------|
| 16MB | None | (1) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 17MB | (4) 4M x 9 | (1) 256K x 36 | None |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 17MB | (4) 256K x 9 | (1) 2M x 36 | (1) 2M x 36 |
|------------+---------------+---------------+---------------|
| 17MB | (4) 256K x 9 | (1) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 18MB | (4) 4M x 9 | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 20MB | (4) 4M x 9 | (1) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 20MB | (4) 1M x 9 | (1) 2M x 36 | (1) 2M x 36 |
|------------+---------------+---------------+---------------|
| 20MB | (4) 1M x 9 | (1) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 24MB | (4) 4M x 9 | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 24MB | (4) 4M x 9 | (1) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 32MB | (4) 4M x 9 | (1) 2M x 36 | (1) 2M x 36 |
|------------+---------------+---------------+---------------|
| 32MB | (4) 4M x 9 | (1) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 32MB | None | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 32MB | None | (1) 8M x 36 | None |
|------------+---------------+---------------+---------------|
| 33MB | (4) 256K x 9 | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 33MB | (4) 256K x 9 | (1) 8M x 36 | None |
|------------+---------------+---------------+---------------|
| 36MB | (4) 1M x 9 | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 36MB | (4) 1M x 9 | (1) 8M x 36 | None |
|------------+---------------+---------------+---------------|
| 48MB | (4) 4M x 9 | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 48MB | (4) 4M x 9 | (1) 8M x 36 | None |
|------------+---------------+---------------+---------------|
| 64MB | (4) 16M x 9 | None | None |
|------------+---------------+---------------+---------------|
| 64MB | None | (1) 8M x 36 | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 64MB | None | (1) 16M x 36 | None |
|------------+---------------+---------------+---------------|
| 65MB | (4) 16M x 9 | (1) 256K x 36 | None |
|------------+---------------+---------------+---------------|
| 65MB | (4) 256K x 9 | (1) 8M x 36 | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 65MB | (4) 256K x 9 | (1) 16M x 36 | None |
|------------+---------------+---------------+---------------|
| 66MB | (4) 16M x 9 | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 68MB | (4) 16M x 9 | (1) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 68MB | (4) 1M x 9 | (1) 8M x 36 | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 68MB | (4) 1M x 9 | (1) 16M x 36 | None |
|------------+---------------+---------------+---------------|
| 72MB | (4) 16M x 9 | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 72MB | (4) 16M x 9 | (1) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 80MB | (4) 16M x 9 | (1) 2M x 36 | (1) 2M x 36 |
|------------+---------------+---------------+---------------|
| 80MB | (4) 16M x 9 | (1) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 80MB | (4) 4M x 9 | (1) 8M x 36 | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 80MB | (4) 4M x 9 | (1) 16M x 36 | None |
|------------+---------------+---------------+---------------|
| 96MB | (4) 16M x 9 | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 96MB | (4) 16M x 9 | (1) 8M x 36 | None |
|------------+---------------+---------------+---------------|
| 128MB | (4) 16M x 9 | (1) 8M x 36 | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 128MB | (4) 16M x 9 | (1) 16M x 36 | None |
|------------+---------------+---------------+---------------|
| 128MB | None | (1) 16M x 36 | (1) 16M x 36 |
|------------+---------------+---------------+---------------|
| 128MB | None | (1) 32M x 36 | None |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | SL1 |
|----------------------------+-------------------------------|
| 128KB | 128KB module installed |
|----------------------------+-------------------------------|
| 256KB | 256KB module installed |
|----------------------------+-------------------------------|
| 512KB | 512KB module installed |
|----------------------------+-------------------------------|
| 1MB | 1MB module installed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP6 | JP7 | JP13 | JP8A | JP8B |
|---------------+---------+---------+--------+-------+-------|
| CX486DX | Open | Open | Open | Open | 1 & 2 |
|---------------+---------+---------+--------+-------+-------|
| IBM486DX | Open | Open | Open | Open | 1 & 2 |
|---------------+---------+---------+--------+-------+-------|
| TI486DX | Open | Open | Open | Open | 1 & 2 |
|---------------+---------+---------+--------+-------+-------|
| SGS486DX | Open | Open | Open | Open | 1 & 2 |
|---------------+---------+---------+--------+-------+-------|
| 80486DX | Open | Closed | Open | 2 & 3 | Open |
|---------------+---------+---------+--------+-------+-------|
| CX486DX2 | Open | Open | Open | Open | 1 & 2 |
|---------------+---------+---------+--------+-------+-------|
| IBM486DX2 | Open | Open | Open | Open | 1 & 2 |
|---------------+---------+---------+--------+-------+-------|
| TI486DX2 | Open | Open | Open | Open | 1 & 2 |
|---------------+---------+---------+--------+-------+-------|
| SGS486DX2 | Open | Open | Open | Open | 1 & 2 |
|---------------+---------+---------+--------+-------+-------|
| AM486DX2 | Open | Closed | Open | 2 & 3 | Open |
|---------------+---------+---------+--------+-------+-------|
| 80486DX2 | Open | Closed | Open | 2 & 3 | Open |
|---------------+---------+---------+--------+-------+-------|
| CX486DX4 | Open | Open | Open | Open | 1 & 2 |
|---------------+---------+---------+--------+-------+-------|
| (SL)CX486DX4 | Open | Open | Closed | 1 & 2 | Open |
|---------------+---------+---------+--------+-------+-------|
| IBM486DX4 | Open | Open | Open | Open | 1 & 2 |
|---------------+---------+---------+--------+-------+-------|
| (SL)IBM486DX4 | Open | Open | Closed | 1 & 2 | Open |
|---------------+---------+---------+--------+-------+-------|
| TI486DX4 | Open | Open | Open | Open | 1 & 2 |
|---------------+---------+---------+--------+-------+-------|
| SGS486DX4 | Open | Open | Open | Open | 1 & 2 |
|---------------+---------+---------+--------+-------+-------|
| (SL)SGS486DX4 | Open | Open | Closed | 1 & 2 | Open |
|---------------+---------+---------+--------+-------+-------|
| AM486DX4 | Open | Closed | Open | 2 & 3 | Open |
|---------------+---------+---------+--------+-------+-------|
| 80486DX4 | Open | Open | Open | 2 & 3 | Open |
|---------------+---------+---------+--------+-------+-------|
| P24D | Open | Open | Open | 1 & 2 | Open |
|---------------+---------+---------+--------+-------+-------|
| CX5X86-133 | Closed | Open | Open | 1 & 2 | Open |
|---------------+---------+---------+--------+-------+-------|
| AM X5 | Closed | Open | Open | 1 & 2 | Open |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP9A | JP9B | JP9C | JP10A | JP10B |
|---------------+-------+----------+-------+-------+---------|
| CX486DX | 1 & 2 | 1 & 2 | 2 & 3 | 3 & 4 | 2 & 3 |
|---------------+-------+----------+-------+-------+---------|
| IBM486DX | 1 & 2 | 1 & 2 | 2 & 3 | 3 & 4 | 2 & 3 |
|---------------+-------+----------+-------+-------+---------|
| TI486DX | 1 & 2 | 1 & 2 | 2 & 3 | 3 & 4 | 2 & 3 |
|---------------+-------+----------+-------+-------+---------|
| SGS486DX | 1 & 2 | 1 & 2 | 2 & 3 | 3 & 4 | 2 & 3 |
|---------------+-------+----------+-------+-------+---------|
| 80486DX | 2 & 3 | Open | Open | 3 & 4 | Open |
|---------------+-------+----------+-------+-------+---------|
| CX486DX2 | 1 & 2 | 1 & 2 | 2 & 3 | 3 & 4 | 2 & 3 |
|---------------+-------+----------+-------+-------+---------|
| IBM486DX2 | 1 & 2 | 1 & 2 | 2 & 3 | 3 & 4 | 2 & 3 |
|---------------+-------+----------+-------+-------+---------|
| TI486DX2 | 1 & 2 | 1 & 2 | 2 & 3 | 3 & 4 | 2 & 3 |
|---------------+-------+----------+-------+-------+---------|
| SGS486DX2 | 1 & 2 | 1 & 2 | 2 & 3 | 3 & 4 | 2 & 3 |
|---------------+-------+----------+-------+-------+---------|
| AM486DX2 | 2 & 3 | Open | Open | 3 & 4 | Open |
|---------------+-------+----------+-------+-------+---------|
| 80486DX2 | 2 & 3 | Open | Open | 3 & 4 | Open |
|---------------+-------+----------+-------+-------+---------|
| CX486DX4 | 1 & 2 | 1 & 2 | 2 & 3 | 3 & 4 | 2 & 3 |
|---------------+-------+----------+-------+-------+---------|
| (SL)CX486DX4 | 1 & 2 | 1 & 2, 3 | 3 & 4 | 3 & 4 | 1 & 2, |
| | | & 4 | | | 3 & 4 |
|---------------+-------+----------+-------+-------+---------|
| IBM486DX4 | 1 & 2 | 1 & 2 | 2 & 3 | 3 & 4 | 2 & 3 |
|---------------+-------+----------+-------+-------+---------|
| (SL)IBM486DX4 | 1 & 2 | 1 & 2, 3 | 3 & 4 | 3 & 4 | 1 & 2, |
| | | & 4 | | | 3 & 4 |
|---------------+-------+----------+-------+-------+---------|
| TI486DX4 | 1 & 2 | 1 & 2 | 2 & 3 | 3 & 4 | 2 & 3 |
|---------------+-------+----------+-------+-------+---------|
| SGS486DX4 | 1 & 2 | 1 & 2 | 2 & 3 | 3 & 4 | 2 & 3 |
|---------------+-------+----------+-------+-------+---------|
| (SL)SGS486DX4 | 1 & 2 | 1 & 2, 3 | 3 & 4 | 3 & 4 | 1 & 2, |
| | | & 4 | | | 3 & 4 |
|---------------+-------+----------+-------+-------+---------|
| AM486DX4 | 2 & 3 | Open | Open | 3 & 4 | Open |
|---------------+-------+----------+-------+-------+---------|
| 80486DX4 | 1 & 2 | 1 & 2 | Open | 3 & 4 | 1 & 2 |
|---------------+-------+----------+-------+-------+---------|
| P24D | 1 & 2 | 1 & 2, 3 | 3 & 4 | 3 & 4 | 1 & 2, |
| | | & 4 | | | 3 & 4 |
|---------------+-------+----------+-------+-------+---------|
| CX5X86-133 | 1 & 2 | 1 & 2, 3 | 3 & 4 | 3 & 4 | 1 & 2, |
| | | & 4 | | | 3 & 4 |
|---------------+-------+----------+-------+-------+---------|
| AM X5 | 1 & 2 | 1 & 2, 3 | 3 & 4 | 3 & 4 | 1 & 2, |
| | | & 4 | | | 3 & 4 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP10C | JP11 | JP12 | JP14 |
|---------------+------------+-------+-----------+-----------|
| CX486DX | 1 & 2, 3 & | 2 & 3 | 2 & 4, 3 | 1 & 2, 3 |
| | 4 | | & 5 | & 4 |
|---------------+------------+-------+-----------+-----------|
| IBM486DX | 1 & 2, 3 & | 2 & 3 | 2 & 4, 3 | 1 & 2, 3 |
| | 4 | | & 5 | & 4 |
|---------------+------------+-------+-----------+-----------|
| TI486DX | 1 & 2, 3 & | 2 & 3 | 2 & 4, 3 | 1 & 2, 3 |
| | 4 | | & 5 | & 4 |
|---------------+------------+-------+-----------+-----------|
| SGS486DX | 1 & 2, 3 & | 2 & 3 | 2 & 4, 3 | 1 & 2, 3 |
| | 4 | | & 5 | & 4 |
|---------------+------------+-------+-----------+-----------|
| 80486DX | 1 & 2, 3 & | Open | 1 & 3, 2 | Open |
| | 4 | | & 4 | |
|---------------+------------+-------+-----------+-----------|
| CX486DX2 | 1 & 2, 3 & | 2 & 3 | 2 & 4, 3 | 1 & 2, 3 |
| | 4 | | & 5 | & 4 |
|---------------+------------+-------+-----------+-----------|
| IBM486DX2 | 1 & 2, 3 & | 2 & 3 | 2 & 4, 3 | 1 & 2, 3 |
| | 4 | | & 5 | & 4 |
|---------------+------------+-------+-----------+-----------|
| TI486DX2 | 1 & 2, 3 & | 2 & 3 | 2 & 4, 3 | 1 & 2, 3 |
| | 4 | | & 5 | & 4 |
|---------------+------------+-------+-----------+-----------|
| SGS486DX2 | 1 & 2, 3 & | 2 & 3 | 2 & 4, 3 | 1 & 2, 3 |
| | 4 | | & 5 | & 4 |
|---------------+------------+-------+-----------+-----------|
| AM486DX2 | 1 & 2, 3 & | Open | 1 & 3, 2 | Open |
| | 4 | | & 4 | |
|---------------+------------+-------+-----------+-----------|
| 80486DX2 | 1 & 2, 3 & | Open | 1 & 3, 2 | Open |
| | 4 | | & 4 | |
|---------------+------------+-------+-----------+-----------|
| CX486DX4 | 1 & 2, 3 & | 2 & 3 | 2 & 4, 3 | 1 & 2, 3 |
| | 4 | | & 5 | & 4 |
|---------------+------------+-------+-----------+-----------|
| (SL)CX486DX4 | 1 & 2, 3 & | Open | 2 & 4, 3 | 2 & 3, 4 |
| | 4 | | & 5 | & 5 |
|---------------+------------+-------+-----------+-----------|
| IBM486DX4 | 1 & 2, 3 & | 2 & 3 | 2 & 4, 3 | 1 & 2, 3 |
| | 4 | | & 5 | & 4 |
|---------------+------------+-------+-----------+-----------|
| (SL)IBM486DX4 | 1 & 2, 3 & | Open | 2 & 4, 3 | 2 & 3, 4 |
| | 4 | | & 5 | & 5 |
|---------------+------------+-------+-----------+-----------|
| TI486DX4 | 1 & 2, 3 & | 2 & 3 | 2 & 4, 3 | 1 & 2, 3 |
| | 4 | | & 5 | & 4 |
|---------------+------------+-------+-----------+-----------|
| SGS486DX4 | 1 & 2, 3 & | 2 & 3 | 2 & 4, 3 | 1 & 2, 3 |
| | 4 | | & 5 | & 4 |
|---------------+------------+-------+-----------+-----------|
| (SL)SGS486DX4 | 1 & 2, 3 & | Open | 2 & 4, 3 | 2 & 3, 4 |
| | 4 | | & 5 | & 5 |
|---------------+------------+-------+-----------+-----------|
| AM486DX4 | 1 & 2, 3 & | Open | 1 & 3, 2 | Open |
| | 4 | | & 4 | |
|---------------+------------+-------+-----------+-----------|
| 80486DX4 | 1 & 2, 3 & | Open | 1 & 3, 2 | 2 & 3, 4 |
| | 4 | | & 4 | & 5 |
|---------------+------------+-------+-----------+-----------|
| P24D | 1 & 2, 3 & | Open | 1 & 3, 2 | 2 & 3, 4 |
| | 4 | | & 4 | & 5 |
|---------------+------------+-------+-----------+-----------|
| CX5X86-133 | 1 & 2, 3 & | Open | 1 & 3, 2 | 2 & 3, 4 |
| | 4 | | & 4 | & 5 |
|---------------+------------+-------+-----------+-----------|
| AM X5 | 1 & 2, 3 & | Open | 1 & 3, 2 | 2 & 3, 4 |
| | 4 | | & 4 | & 5 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION (DX4/5X86/X5 ONLY) |
|------------------------------------------------------------|
| Speed | JP6 |
|-----------------------------+------------------------------|
| 2x | Closed |
|-----------------------------+------------------------------|
| 3x | Open |
|-----------------------------+------------------------------|
| 4x | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP3 |
|--------------------------+---------------------------------|
| 25MHz | Pins 5 & 6 closed |
|--------------------------+---------------------------------|
| 33MHz | Pins 1 & 2, 3 & 4, 5 & 6 closed |
|--------------------------+---------------------------------|
| 40MHz | Pins 3 & 4, 5 & 6 closed |
|--------------------------+---------------------------------|
| 50iMHz | Pins 5 & 6 closed |
|--------------------------+---------------------------------|
| 50MHz | Pins 1 & 2 closed |
|--------------------------+---------------------------------|
| 66iMHz | Pins 1 & 2, 3 & 4, 5 & 6 closed |
|--------------------------+---------------------------------|
| 75iMHz | Pins 5 & 6 closed |
|--------------------------+---------------------------------|
| 80iMHz | Pins 3 & 4, 5 & 6 closed |
|--------------------------+---------------------------------|
| 100iMHz | Pins 1 & 2, 3 & 4, 5 & 6 closed |
|--------------------------+---------------------------------|
| 120iMHz | Pins 3 & 4, 5 & 6 closed |
|--------------------------+---------------------------------|
| 133iMHz | Pins 1 & 2, 3 & 4, 5 & 6 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | JP4 | JP5A | JP5B | JP5C | JP5D |
|-----------+----------+---------+---------+--------+--------|
| 3.3v | Closed | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
|-----------+----------+---------+---------+--------+--------|
| 4v | Open | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
|-----------+----------+---------+---------+--------+--------|
| 5v | Closed | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+