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# FORCOM TECHNOLOGY CORPORATION
FT-1339L
Processor 80486SX/AM486DX/80486DX/AM486DX2/AM486DX2(WB)/
AM486DX2(WT)/80486DX2/AM486DX4/AM486DX4(WB)/
AM486DX4(WT(/80486DX4/CXM7/STM7/IBMM7/TIM7/CX5X86(WB)/
CX5X86(WT)/ST5X86(WB)/ST5X86(WT)/IBM5X86(WB)/IBM5X86(WT)/
TI5X86(WB)/TI5X86(WT)/ AM5X86(WB)/AM5X86(WT)
Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set SIS
Video Chip Cirrus Logic
Set
Maximum 64MB (EDO supported)
Onboard
Memory
Maximum 2MB
Video
Memory
Cache 128/256/512KB
BIOS Award
Dimensions 220mm x 200mm
I/O Floppy drive interface, green PC connector, IDE interfaces (2),
Options parallel port, PS/2 mouse interface, serial ports (2), VGA feature
connector, VGA port, riser slot, IR connector
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-----------------+----------+--------------+----------------|
| PS/2 mouse port | CN2 | External | J1 |
| | | battery | |
|-----------------+----------+--------------+----------------|
| Serial port 1 | CN3 | Green PC | J3 |
| | | connector | |
|-----------------+----------+--------------+----------------|
| Serial port 2 | CN4 | Speaker | J4 pins |
| | | | 1/3/5/7 |
|-----------------+----------+--------------+----------------|
| Parallel port | CN5 | Reset switch | J4 pins 2 & 4 |
|-----------------+----------+--------------+----------------|
| VGA port | CN6 | IDE | J4 pins 6 & 8 |
| | | interface | |
| | | LED | |
|-----------------+----------+--------------+----------------|
| IR connector | CN7 | Power LED & | J4 pins |
| | | keylock | 11/13/15/17/19 |
|-----------------+----------+--------------+----------------|
| VGA feature | CN8 | Turbo LED | J4 pins 12 & |
| connector | | | 14 |
|-----------------+----------+--------------+----------------|
| Floppy drive | CN9 | Turbo switch | J4 pins |
| interface | | | 16/18/20 |
|-----------------+----------+--------------+----------------|
| IDE interface 1 | CN10 | Riser slot | SL1 |
|-----------------+----------+--------------+----------------|
| IDE interface 2 | CN11 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| » | Factory configured - do not | JP1 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP2 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | On board video enabled | JP5 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | On board video disabled | JP5 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | CMOS memory normal operation | JP6 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | CMOS memory clear | JP6 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP11 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP12 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| | Monitor type select color | JP14 | Closed |
|---+---------------------------------+-------+--------------|
| | Monitor type select monochrome | JP14 | Open |
|---+---------------------------------+-------+--------------|
| » | Power good signal detect from | JP20 | Pins 2 & 3 |
| | board | | closed |
|---+---------------------------------+-------+--------------|
| | Power good signal detect from | JP20 | Pins 1 & 2 |
| | power supply | | closed |
|---+---------------------------------+-------+--------------|
| | Buzzer enabled | JP31 | Closed |
|---+---------------------------------+-------+--------------|
| » | Buzzer disabled | JP31 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 1MB | (1) 256K x 36 | None |
|------------------+--------------------+--------------------|
| 2MB | (1) 512K x 36 | None |
|------------------+--------------------+--------------------|
| 2MB | (1) 256K x 36 | (1) 256K x 36 |
|------------------+--------------------+--------------------|
| 3MB | (1) 512K x 36 | (1) 256K x 36 |
|------------------+--------------------+--------------------|
| 4MB | (1) 1M x 36 | None |
|------------------+--------------------+--------------------|
| 4MB | (1) 512K x 36 | (1) 512K x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|--------------+---------------------+-----------------------|
| 5MB | (1) 1M x 36 | (1) 256K x 36 |
|--------------+---------------------+-----------------------|
| 6MB | (1) 1M x 36 | (1) 512K x 36 |
|--------------+---------------------+-----------------------|
| 8MB | (1) 2M x 36 | None |
|--------------+---------------------+-----------------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 |
|--------------+---------------------+-----------------------|
| 9MB | (1) 2M x 36 | (1) 256K x 36 |
|--------------+---------------------+-----------------------|
| 10MB | (1) 2M x 36 | (1) 512K x 36 |
|--------------+---------------------+-----------------------|
| 12MB | (1) 2M x 36 | (1) 1M x 36 |
|--------------+---------------------+-----------------------|
| 16MB | (1) 4M x 36 | None |
|--------------+---------------------+-----------------------|
| 16MB | (1) 2M x 36 | (1) 2M x 36 |
|--------------+---------------------+-----------------------|
| 17MB | (1) 4M x 36 | (1) 256K x 36 |
|--------------+---------------------+-----------------------|
| 18MB | (1) 4M x 36 | (1) 512K x 36 |
|--------------+---------------------+-----------------------|
| 20MB | (1) 4M x 36 | (1) 1M x 36 |
|--------------+---------------------+-----------------------|
| 24MB | (1) 4M x 36 | (1) 2M x 36 |
|--------------+---------------------+-----------------------|
| 32MB | (1) 8M x 36 | None |
|--------------+---------------------+-----------------------|
| 32MB | (1) 4M x 36 | (1) 4M x 36 |
|--------------+---------------------+-----------------------|
| 33MB | (1) 8M x 36 | (1) 256K x 36 |
|--------------+---------------------+-----------------------|
| 34MB | (1) 8M x 36 | (1) 512K x 36 |
|--------------+---------------------+-----------------------|
| 36MB | (1) 8M x 36 | (1) 1M x 36 |
|--------------+---------------------+-----------------------|
| 40MB | (1) 8M x 36 | (1) 2M x 36 |
|--------------+---------------------+-----------------------|
| 48MB | (1) 8M x 36 | (1) 4M x 36 |
|--------------+---------------------+-----------------------|
| 64MB | (1) 8M x 36 | (1) 8M x 36 |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. Banks are interchangeable. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 | JP18 | JP19 |
|------------------+--------------------+--------------------|
| 128KB | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 256KB | Pins 1 & 2 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| 512KB | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VIDEO MEMORY CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|--------------+---------------+--------------+--------------|
| 512KB | 512MB | None | None |
|--------------+---------------+--------------+--------------|
| 1MB | 512MB | 512MB | None |
|--------------+---------------+--------------+--------------|
| 2MB | 512MB | 512MB | 1MB |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| Speed | JP13 | JP17 |
|------------+--------------------+--------------------------|
| 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 TYPE SELECTION |
|------------------------------------------------------------|
| Type | JP7 | JP8 | JP9 | JP10 | JP16 |
|------------------+-------+-------+--------+--------+-------|
| 80486SX | 4 & 5 | Open | 2 & 3 | Open | 1 & 2 |
|------------------+-------+-------+--------+--------+-------|
| AM486DX | 4 & 5 | Open | 1 & 2, | Open | 1 & 2 |
| | | | 3 & 4 | | |
|------------------+-------+-------+--------+--------+-------|
| 80486DX | 4 & 5 | Open | 1 & 2, | Open | 1 & 2 |
| | | | 3 & 4 | | |
|------------------+-------+-------+--------+--------+-------|
| AM486DX2 | 4 & 5 | Open | 1 & 2, | Open | 1 & 2 |
| | | | 3 & 4 | | |
|------------------+-------+-------+--------+--------+-------|
| AM486DX2 (V8B, | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| WB, 2x) | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| AM486DX2 (V8B, | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| WB, 3x) | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| AM486DX2 (V8B, | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| WT, 2x) | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| AM486DX2 (V8B, | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| WT, 3x) | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| AM486DX2 (V8T) | 4 & 5 | Open | 1 & 2, | Open | 1 & 2 |
| | | | 3 & 4 | | |
|------------------+-------+-------+--------+--------+-------|
| 80486DX2 | 4 & 5 | Open | 1 & 2, | Open | 1 & 2 |
| | | | 3 & 4 | | |
|------------------+-------+-------+--------+--------+-------|
| AM486DX4 (V8B, | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| WB, 2x) | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| AM486DX4 (V8B, | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| WB, 3x) | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| AM486DX4 (V8B, | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| WT, 2x) | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| AM486DX4 (V8B, | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| WT, 3x) | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| AM486DX4 (V8T) | 4 & 5 | Open | 1 & 2, | Open | 1 & 2 |
| | | | 3 & 4 | | |
|------------------+-------+-------+--------+--------+-------|
| 80486DX4 (2x) | 4 & 5 | 4 & 5 | 1 & 2, | 3 & 4 | 1 & 2 |
| | | | 3 & 4 | | |
|------------------+-------+-------+--------+--------+-------|
| 80486DX4 (2.5x) | 4 & 5 | 4 & 5 | 1 & 2, | 3 & 4 | 1 & 2 |
| | | | 3 & 4 | | |
|------------------+-------+-------+--------+--------+-------|
| 80486DX4 (3x) | 4 & 5 | 4 & 5 | 1 & 2, | 3 & 4 | 1 & 2 |
| | | | 3 & 4 | | |
|------------------+-------+-------+--------+--------+-------|
| CX M7 | 4 & 5 | 2 & 3 | 1 & 2, | 2 & 3 | 1 & 2 |
| | | | 3 & 4 | | |
|------------------+-------+-------+--------+--------+-------|
| ST M7 | 4 & 5 | 2 & 3 | 1 & 2, | 2 & 3 | 1 & 2 |
| | | | 3 & 4 | | |
|------------------+-------+-------+--------+--------+-------|
| IBM M7 | 4 & 5 | 2 & 3 | 1 & 2, | 2 & 3 | 1 & 2 |
| | | | 3 & 4 | | |
|------------------+-------+-------+--------+--------+-------|
| TI M7 | 4 & 5 | 2 & 3 | 1 & 2, | 2 & 3 | 1 & 2 |
| | | | 3 & 4 | | |
|------------------+-------+-------+--------+--------+-------|
| CX 5X86 (WB, 2x) | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| CX 5X86 (WT, 2x) | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| CX 5X86 (WB, 3x) | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| CX 5X86 (WT, 3x) | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| ST 5X86 (WB, 2x) | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| ST 5X86 (WT, 2x) | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| | | | 3 & 4 | 3 & 4 | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION (CON’T) |
|------------------------------------------------------------|
| Type | JP7 | JP8 | JP9 | JP10 | JP16 |
|------------------+-------+-------+--------+--------+-------|
| ST 5X86 (WB, 3x) | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| ST 5X86 (WT, 3x) | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| IBM 5X86 (WB, | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| 2x) | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| IBM 5X86 (WT, | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| 2x) | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| IBM 5X86 (WB, | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| 3x) | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| IBM 5X86 (WT, | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| 3x) | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| TI 5X86 (WB, 2x) | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| TI 5X86 (WT, 2x) | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| TI 5X86 (WB, 3x) | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| TI 5X86 (WT, 3x) | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| AM 5X86 (WB, 3x) | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| AM 5X86 (WT, 4x) | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| AM 5X86 (WB, 3x) | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| | | | 3 & 4 | 3 & 4 | |
|------------------+-------+-------+--------+--------+-------|
| AM 5X86 (WT, 4x) | 4 & 5 | 4 & 5 | 1 & 2, | 1 & 2, | 1 & 2 |
| | | | 3 & 4 | 3 & 4 | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION (CON’T) |
|------------------------------------------------------------|
| Type | JP21 | JP22 | JP23 | JP24 | JP25 |
|--------------------+-------+-------+-------+-------+-------|
| 80486SX | Open | Open | Open | Open | Open |
|--------------------+-------+-------+-------+-------+-------|
| AM486DX | Open | Open | Open | Open | 2 & 3 |
|--------------------+-------+-------+-------+-------+-------|
| 80486DX | Open | Open | Open | Open | 2 & 3 |
|--------------------+-------+-------+-------+-------+-------|
| AM486DX2 | Open | Open | Open | Open | 2 & 3 |
|--------------------+-------+-------+-------+-------+-------|
| AM486DX2 (V8B, WB, | 1 & 2 | Open | 2 & 3 | 2 & 3 | 2 & 3 |
| 2x) | | | | | |
|--------------------+-------+-------+-------+-------+-------|
| AM486DX2 (V8B, WB, | 1 & 2 | Open | Open | 2 & 3 | 2 & 3 |
| 3x) | | | | | |
|--------------------+-------+-------+-------+-------+-------|
| AM486DX2 (V8B, WT, | 1 & 2 | Open | 2 & 3 | 2 & 3 | 2 & 3 |
| 2x) | | | | | |
|--------------------+-------+-------+-------+-------+-------|
| AM486DX2 (V8B, WT, | 1 & 2 | Open | Open | 2 & 3 | 2 & 3 |
| 3x) | | | | | |
|--------------------+-------+-------+-------+-------+-------|
| AM486DX2 (V8T) | Open | Open | Open | Open | 2 & 3 |
|--------------------+-------+-------+-------+-------+-------|
| 80486DX2 | Open | Open | Open | Open | 2 & 3 |
|--------------------+-------+-------+-------+-------+-------|
| AM486DX4 (V8B, WB, | 1 & 2 | Open | 2 & 3 | 2 & 3 | 2 & 3 |
| 2x) | | | | | |
|--------------------+-------+-------+-------+-------+-------|
| AM486DX4 (V8B, WB, | 1 & 2 | Open | Open | 2 & 3 | 2 & 3 |
| 3x) | | | | | |
|--------------------+-------+-------+-------+-------+-------|
| AM486DX4 (V8B, WT, | 1 & 2 | Open | 2 & 3 | 2 & 3 | 2 & 3 |
| 2x) | | | | | |
|--------------------+-------+-------+-------+-------+-------|
| AM486DX4 (V8B, WT, | 1 & 2 | Open | Open | 2 & 3 | 2 & 3 |
| 3x) | | | | | |
|--------------------+-------+-------+-------+-------+-------|
| AM486DX4 (V8T) | Open | Open | Open | Open | 2 & 3 |
|--------------------+-------+-------+-------+-------+-------|
| 80486DX4 (2x) | Open | Open | 2 & 3 | Open | 2 & 3 |
|--------------------+-------+-------+-------+-------+-------|
| 80486DX4 (2.5x) | Open | Open | 1 & 2 | Open | 2 & 3 |
|--------------------+-------+-------+-------+-------+-------|
| 80486DX4 (3x) | Open | Open | Open | Open | 2 & 3 |
|--------------------+-------+-------+-------+-------+-------|
| CX M7 | 2 & 3 | 2 & 3 | Open | Open | 2 & 3 |
|--------------------+-------+-------+-------+-------+-------|
| ST M7 | 2 & 3 | 2 & 3 | Open | Open | 2 & 3 |
|--------------------+-------+-------+-------+-------+-------|
| IBM M7 | 2 & 3 | 2 & 3 | Open | Open | 2 & 3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION (CON’T) |
|------------------------------------------------------------|
| Type | JP21 | JP22 | JP23 | JP24 | JP25 |
|-------------------+--------+-------+-------+-------+-------|
| TI M7 | 2 & 3 | 2 & 3 | Open | Open | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| CX 5X86 (WB, 2x) | 1 & 2 | Open | 2 & 3 | 2 & 3 | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| CX 5X86 (WT, 2x) | 1 & 2 | Open | 2 & 3 | 2 & 3 | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| CX 5X86 (WB, 3x) | 1 & 2 | Open | Open | 2 & 3 | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| CX 5X86 (WT, 3x) | 1 & 2 | Open | Open | 2 & 3 | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| ST 5X86 (WB, 2x) | 1 & 2 | Open | 2 & 3 | 2 & 3 | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| ST 5X86 (WT, 2x) | 1 & 2 | Open | 2 & 3 | 2 & 3 | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| ST 5X86 (WB, 3x) | 1 & 2 | Open | Open | 2 & 3 | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| ST 5X86 (WT, 3x) | 1 & 2 | Open | Open | 2 & 3 | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| IBM 5X86 (WB, 2x) | 1 & 2 | Open | 2 & 3 | 2 & 3 | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| IBM 5X86 (WT, 2x) | 1 & 2 | Open | 2 & 3 | 2 & 3 | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| IBM 5X86 (WB, 3x) | 1 & 2 | Open | Open | 2 & 3 | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| IBM 5X86 (WT, 3x) | 1 & 2 | Open | Open | 2 & 3 | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| TI 5X86 (WB, 2x) | 1 & 2 | Open | 2 & 3 | 2 & 3 | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| TI 5X86 (WT, 2x) | 1 & 2 | Open | 2 & 3 | 2 & 3 | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| TI 5X86 (WB, 3x) | 1 & 2 | Open | Open | 2 & 3 | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| TI 5X86 (WT, 3x) | 1 & 2 | Open | Open | 2 & 3 | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| AM 5X86 (WB, 3x) | 1 & 2 | Open | Open | 2 & 3 | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| AM 5X86 (WT, 4x) | 1 & 2 | Open | 2 & 3 | 2 & 3 | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| AM 5X86 (WB, 3x) | 1 & 2 | Open | Open | 2 & 3 | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| AM 5X86 (WT, 4x) | 1 & 2 | Open | 2 & 3 | 2 & 3 | 2 & 3 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION (CON’T) |
|------------------------------------------------------------|
| Type | JP26 | JP27 | JP28 | JP29 | JP30 |
|---------------------+-------+------+-------+------+--------|
| 80486SX | Open | Open | Open | Open | Open |
|---------------------+-------+------+-------+------+--------|
| AM486DX | Open | Open | Open | Open | Open |
|---------------------+-------+------+-------+------+--------|
| 80486DX | Open | Open | Open | Open | Open |
|---------------------+-------+------+-------+------+--------|
| AM486DX2 | Open | Open | Open | Open | Closed |
|---------------------+-------+------+-------+------+--------|
| AM486DX2 (V8B, WB, | 2 & 3 | Open | 1 & 2 | Open | Closed |
| 2x) | | | | | |
|---------------------+-------+------+-------+------+--------|
| AM486DX2 (V8B, WB, | 2 & 3 | Open | 1 & 2 | Open | Closed |
| 3x) | | | | | |
|---------------------+-------+------+-------+------+--------|
| AM486DX2 (V8B, WT, | 2 & 3 | Open | 2 & 3 | Open | Closed |
| 2x) | | | | | |
|---------------------+-------+------+-------+------+--------|
| AM486DX2 (V8B, WT, | 2 & 3 | Open | 2 & 3 | Open | Closed |
| 3x) | | | | | |
|---------------------+-------+------+-------+------+--------|
| AM486DX2 (V8T) | Open | Open | Open | Open | Closed |
|---------------------+-------+------+-------+------+--------|
| 80486DX2 | Open | Open | Open | Open | Open |
|---------------------+-------+------+-------+------+--------|
| AM486DX4 (V8B, WB, | 2 & 3 | Open | 1 & 2 | Open | Closed |
| 2x) | | | | | |
|---------------------+-------+------+-------+------+--------|
| AM486DX4 (V8B, WB, | 2 & 3 | Open | 1 & 2 | Open | Closed |
| 3x) | | | | | |
|---------------------+-------+------+-------+------+--------|
| AM486DX4 (V8B, WT, | 2 & 3 | Open | 2 & 3 | Open | Closed |
| 2x) | | | | | |
|---------------------+-------+------+-------+------+--------|
| AM486DX4 (V8B, WT, | 2 & 3 | Open | 2 & 3 | Open | Closed |
| 3x) | | | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION (CON’T) |
|------------------------------------------------------------|
| Type | JP26 | JP27 | JP28 | JP29 | JP30 |
|-------------------+--------+-------+-------+------+--------|
| AM486DX4 (V8T) | Open | Open | Open | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| 80486DX4 (2x) | 2 & 3 | Open | Open | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| 80486DX4 (2.5x) | 2 & 3 | Open | Open | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| 80486DX4 (3x) | 2 & 3 | Open | Open | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| CX M7 | 1 & 2 | Open | Open | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| ST M7 | 1 & 2 | Open | Open | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| IBM M7 | 1 & 2 | Open | Open | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| TI M7 | 1 & 2 | Open | Open | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| CX 5X86 (WB, 2x) | 2 & 3 | Open | 1 & 2 | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| CX 5X86 (WT, 2x) | 2 & 3 | Open | 2 & 3 | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| CX 5X86 (WB, 3x) | 2 & 3 | Open | 1 & 2 | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| CX 5X86 (WT, 3x) | 2 & 3 | Open | 2 & 3 | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| ST 5X86 (WB, 2x) | 2 & 3 | Open | 1 & 2 | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| ST 5X86 (WT, 2x) | 2 & 3 | Open | 2 & 3 | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| ST 5X86 (WB, 3x) | 2 & 3 | Open | 1 & 2 | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| ST 5X86 (WT, 3x) | 2 & 3 | Open | 2 & 3 | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| IBM 5X86 (WB, 2x) | 2 & 3 | Open | 1 & 2 | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| IBM 5X86 (WT, 2x) | 2 & 3 | Open | 2 & 3 | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| IBM 5X86 (WB, 3x) | 2 & 3 | Open | 1 & 2 | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| IBM 5X86 (WT, 3x) | 2 & 3 | Open | 2 & 3 | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| TI 5X86 (WB, 2x) | 2 & 3 | Open | 1 & 2 | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| TI 5X86 (WT, 2x) | 2 & 3 | Open | 2 & 3 | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| TI 5X86 (WB, 3x) | 2 & 3 | Open | 1 & 2 | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| TI 5X86 (WT, 3x) | 2 & 3 | Open | 2 & 3 | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| AM 5X86 (WB, 3x) | 2 & 3 | Open | 1 & 2 | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| AM 5X86 (WT, 4x) | 2 & 3 | Open | 2 & 3 | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| AM 5X86 (WB, 3x) | 2 & 3 | Open | 1 & 2 | Open | Closed |
|-------------------+--------+-------+-------+------+--------|
| AM 5X86 (WT, 4x) | 2 & 3 | Open | 2 & 3 | Open | Closed |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | JP32 | JP33 |
|------------+--------------------+--------------------------|
| 3.3v | Pins 1 & 2 closed | Pins 1 & 3, 2 & 4 closed |
|------------+--------------------+--------------------------|
| 3.45v | Pins 3 & 4 closed | Pins 1 & 3, 2 & 4 closed |
|------------+--------------------+--------------------------|
| 4v | Pins 5 & 6 closed | Pins 1 & 3, 2 & 4 closed |
|------------+--------------------+--------------------------|
| 5v | N/A | Pins 1 & 2, 3 & 4 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| IR SELECTION |
|------------------------------------------------------------|
| Setting | JP3 | JP4 |
|----------------------------------+------------+------------|
| U3 is 665IR, IR via CN7 | Pins 1 & 2 | Pins 1 & 2 |
| | closed | closed |
|----------------------------------+------------+------------|
| U3 uses 665GT/669 or 665IR | Pins 2 & 3 | Pins 2 & 3 |
| without IR | closed | closed |
+------------------------------------------------------------+