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# FIRST INTERNATIONAL COMPUTER, INC.
VT-502
Device Type Mainboard
Processor CX 6X86/IBM 6X86/CX 6X86L/IBM 6X86L/CX
686MX/IBM 6X86MX/
AM K5/AM K6/Pentium
Processor Speed 90/100/120/133/150/166/200/233MHz
Chip Set Intel
Video Chip Set None
Maximum Onboard 128MB (EDO & SDRAM supported)
Memory
Maximum Video None
Memory
Cache 256/512KB
BIOS Award
Dimensions 254mm x 218mm
I/O Options 32-bit PCI slots (4), floppy drive interface,
green PC connector, IDE interfaces (2),
parallel port, PS/2 mouse interface, serial
ports (2), IR connector, USB connectors (2)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------+-----------+-------------------+-----------|
| Power LED & | C1/pins 1 | Floppy drive | CN4 |
| keylock | - 5 | interface | |
|----------------+-----------+-------------------+-----------|
| Turbo LED | C1/pins 6 | IDE interface 2 | CN5 |
| | & 7 | | |
|----------------+-----------+-------------------+-----------|
| Green PC | C1/pins 8 | IDE interface 1 | CN6 |
| connector | & 9 | | |
|----------------+-----------+-------------------+-----------|
| Green PC LED | C1/pins | PS/2 mouse | CN7 |
| | 10 & 11 | interface | |
|----------------+-----------+-------------------+-----------|
| Speaker | C1/pins | CPU fan power | FAN |
| | 12 - 15 | | |
|----------------+-----------+-------------------+-----------|
| IDE interface | C1/pins | IR connector | IR1 |
| LED | 16 & 17 | | |
|----------------+-----------+-------------------+-----------|
| Soft off power | C1/pins | 32-bit PCI slots | PC1 – PC4 |
| supply | 18 & 19 | | |
|----------------+-----------+-------------------+-----------|
| Reset switch | C1/pins | Remote power | RPW |
| | 20 & 21 | connector | |
|----------------+-----------+-------------------+-----------|
| Serial port 1 | CN1 | USB connector 1 | USB1 |
|----------------+-----------+-------------------+-----------|
| Serial port 2 | CN2 | USB connector 2 | USB2 |
|----------------+-----------+-------------------+-----------|
| Parallel port | CN3 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| » | Password disabled | CPW | Open |
|---+---------------------------------+-------+--------------|
| | Password enabled | CPW | Closed |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | SRAM | Unidentified |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 8MB | (2) 1M x 36 | None |
|------------------+--------------------+--------------------|
| 16MB | (2) 2M x 36 | None |
|------------------+--------------------+--------------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (2) 4M x 36 | None |
|------------------+--------------------+--------------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (2) 8M x 36 | None |
|------------------+--------------------+--------------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 72MB | (2) 8M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 80MB | (2) 8M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 2 | Bank 3 |
|------------------+--------------------+--------------------|
| 8MB | (1) 1M x 64 | None |
|------------------+--------------------+--------------------|
| 16MB | (1) 2M x 64 | None |
|------------------+--------------------+--------------------|
| 16MB | (1) 1M x 64 | (1) 1M x 64 |
|------------------+--------------------+--------------------|
| 24MB | (1) 2M x 64 | (1) 1M x 64 |
|------------------+--------------------+--------------------|
| 32MB | (1) 4M x 64 | None |
|------------------+--------------------+--------------------|
| 32MB | (1) 2M x 64 | (1) 2M x 64 |
|------------------+--------------------+--------------------|
| 40MB | (1) 4M x 64 | (1) 1M x 64 |
|------------------+--------------------+--------------------|
| 48MB | (1) 4M x 64 | (1) 2M x 64 |
|------------------+--------------------+--------------------|
| 64MB | (1) 8M x 64 | None |
|------------------+--------------------+--------------------|
| 64MB | (1) 4M x 64 | (1) 4M x 64 |
|------------------+--------------------+--------------------|
| 72MB | (1) 8M x 64 | (1) 1M x 64 |
|------------------+--------------------+--------------------|
| 80MB | (1) 8M x 64 | (1) 2M x 64 |
|------------------+--------------------+--------------------|
| 96MB | (1) 8M x 64 | (1) 4M x 64 |
|------------------+--------------------+--------------------|
| 128MB | (1) 8M x 64 | (1) 8M x 64 |
|------------------------------------------------------------|
| Note: Board accepts SDRAM memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|----------+---------------+---------------+-----------------|
| 256KB | (2) 32K x 32 | None | (1) 16K/32K x 8 |
|----------+---------------+---------------+-----------------|
| 512KB | (2) 64K x 32 | None | (1) 16K/32K x 8 |
|----------+---------------+---------------+-----------------|
| 512KB | (2) 32K x 32 | (2) 32K x 32 | (1) 16K/32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier|CLK1 |CLK2 |CLK3|FREQ1|FREQ2|FREQ3|
| speed |speed | | | | | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|133MHz |55MHz | 2x |2 & 3|2 & 3|1 & |2 & 3|1 & 2|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|150MHz |60MHz | 2x |2 & 3|1 & 2|1 & |2 & 3|1 & 2|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|166MHz |66MHz | 2x |1 & 2|1 & 2|1 & |2 & 3|1 & 2|1 & 2|
| | | | | | 2 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IBM 6X86) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier|CLK1 |CLK2 |CLK3|FREQ1|FREQ2|FREQ3|
| speed |speed | | | | | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|133MHz |55MHz | 2x |2 & 3|2 & 3|1 & |2 & 3|1 & 2|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|150MHz |60MHz | 2x |2 & 3|1 & 2|1 & |2 & 3|1 & 2|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|166MHz |66MHz | 2x |1 & 2|1 & 2|1 & |2 & 3|1 & 2|1 & 2|
| | | | | | 2 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86L) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier|CLK1 |CLK2 |CLK3|FREQ1|FREQ2|FREQ3|
| speed |speed | | | | | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|133MHz |55MHz | 2x |2 & 3|2 & 3|1 & |2 & 3|1 & 2|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|150MHz |60MHz | 2x |2 & 3|1 & 2|1 & |2 & 3|1 & 2|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|166MHz |66MHz | 2x |1 & 2|1 & 2|1 & |2 & 3|1 & 2|1 & 2|
| | | | | | 2 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IBM 6X86L) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier|CLK1 |CLK2 |CLK3|FREQ1|FREQ2|FREQ3|
| speed |speed | | | | | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|133MHz |55MHz | 2x |2 & 3|2 & 3|1 & |2 & 3|1 & 2|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|150MHz |60MHz | 2x |2 & 3|1 & 2|1 & |2 & 3|1 & 2|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|166MHz |66MHz | 2x |1 & 2|1 & 2|1 & |2 & 3|1 & 2|1 & 2|
| | | | | | 2 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86MX) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier|CLK1 |CLK2 |CLK3|FREQ1|FREQ2|FREQ3|
| speed |speed | | | | | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|166MHz |66MHz | 2x |1 & 2|1 & 2|1 & |2 & 3|1 & 2|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|166MHz |55MHz | 2.5x |2 & 3|2 & 3|1 & |2 & 3|2 & 3|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|166MHz |60MHz | 2.5x |2 & 3|1 & 2|1 & |2 & 3|2 & 3|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|200MHz |55MHz | 3x |2 & 3|2 & 3|1 & |1 & 2|2 & 3|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|200MHz |66MHz | 2.5x |1 & 2|1 & 2|1 & |2 & 3|2 & 3|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|200MHz |60MHz | 3x |2 & 3|1 & 2|1 & |1 & 2|2 & 3|1 & 2|
| | | | | | 2 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IBM 6X86MX) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier|CLK1 |CLK2 |CLK3|FREQ1|FREQ2|FREQ3|
| speed |speed | | | | | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|166MHz |66MHz | 2x |1 & 2|1 & 2|1 & |2 & 3|1 & 2|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|166MHz |55MHz | 2.5x |2 & 3|2 & 3|1 & |2 & 3|2 & 3|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|166MHz |60MHz | 2.5x |2 & 3|1 & 2|1 & |2 & 3|2 & 3|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|200MHz |55MHz | 3x |2 & 3|2 & 3|1 & |1 & 2|2 & 3|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|200MHz |66MHz | 2.5x |1 & 2|1 & 2|1 & |2 & 3|2 & 3|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|200MHz |60MHz | 3x |2 & 3|1 & 2|1 & |1 & 2|2 & 3|1 & 2|
| | | | | | 2 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K5) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier|CLK1 |CLK2 |CLK3|FREQ1|FREQ2|FREQ3|
| speed |speed | | | | | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
| 90MHz |60MHz | 1.5x |2 & 3|1 & 2|1 & |1 & 2|1 & 2|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|100MHz |66MHz | 1.5x |1 & 2|1 & 2|1 & |1 & 2|1 & 2|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|120MHz |60MHz | 1.5x |2 & 3|1 & 2|1 & |1 & 2|1 & 2|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|133MHz |66MHz | 1.5x |1 & 2|1 & 2|1 & |1 & 2|1 & 2|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|150MHz |60MHz | 1.75x |2 & 3|1 & 2|1 & |2 & 3|2 & 3|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|166MHz |66MHz | 1.75x |1 & 2|1 & 2|1 & |2 & 3|2 & 3|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|200MHz |66MHz | 2x |1 & 2|1 & 2|1 & |1 & 2|2 & 3|1 & 2|
| | | | | | 2 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier|CLK1 |CLK2 |CLK3|FREQ1|FREQ2|FREQ3|
| speed |speed | | | | | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|166MHz |66MHz | 2.5x |1 & 2|1 & 2|1 & |2 & 3|2 & 3|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|200MHz |66MHz | 3x |1 & 2|1 & 2|1 & |1 & 2|2 & 3|1 & 2|
| | | | | | 2 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier|CLK1 |CLK2 |CLK3|FREQ1|FREQ2|FREQ3|
| speed |speed | | | | | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
| 90MHz |60MHz | 1.5x |2 & 3|1 & 2|1 & |1 & 2|1 & 2|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|100MHz |66MHz | 1.5x |1 & 2|1 & 2|1 & |1 & 2|1 & 2|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|120MHz |60MHz | 2x |2 & 3|1 & 2|1 & |2 & 3|1 & 2|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|133MHz |66MHz | 2x |1 & 2|1 & 2|1 & |2 & 3|1 & 2|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|150MHz |60MHz | 2.5x |2 & 3|1 & 2|1 & |2 & 3|2 & 3|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|166MHz |66MHz | 2.5x |1 & 2|1 & 2|1 & |2 & 3|2 & 3|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|200MHz |66MHz | 3x |1 & 2|1 & 2|1 & |1 & 2|2 & 3|1 & 2|
| | | | | | 2 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL MMX) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier|CLK1 |CLK2 |CLK3|FREQ1|FREQ2|FREQ3|
| speed |speed | | | | | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|166MHz |66MHz | 2.5x |1 & 2|1 & 2|1 & |2 & 3|2 & 3|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|200MHz |66MHz | 3x |1 & 2|1 & 2|1 & |1 & 2|2 & 3|1 & 2|
| | | | | | 2 | | | |
|-------+------+----------+-----+-----+----+-----+-----+-----|
|233MHz |66MHz | 3.5x |1 & 2|1 & 2|1 & |1 & 2|1 & 2|1 & 2|
| | | | | | 2 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (SINGLE) |
|------------------------------------------------------------|
| Voltage | VR1 | VR2 |
|---------------------+--------------------+-----------------|
| 3.3v | Pins 3 & 4 closed | Open |
|---------------------+--------------------+-----------------|
| 3.5v | Pins 1 & 2 closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (DUAL) |
|------------------------------------------------------------|
| Voltage | V core | VR1 | VR2 |
|---------+--------+-------------------+---------------------|
| 3.3v | 2.8v | Pins 9 & 10 | Pins 1 & 2, 3 & 4 |
| | | closed | closed |
|---------+--------+-------------------+---------------------|
| 3.3v | 2.9v | Pins 7 & 8 closed | Pins 1 & 2, 3 & 4 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLASH BIOS SELECTION |
|------------------------------------------------------------|
| Type | EP1 | EP2 |
|------------------+--------------------+--------------------|
| ATMEL AT29C010A | Pins 2 & 3 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| Intel 28F001 | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| MXIC MX28F2000P | Pins 1 & 2 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| MXIC MX28F1000 | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| SST 29EE010 | Pins 2 & 3 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| SST 29EE020 | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+