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# ACER, INC.
AP5TC
Device Type Mainboard
Processor CX 6X86/CX 6X86L/CX 686MX/AM K5/AM K6/IDT
C6/Pentium/
Pentium MMX
Processor Speed 90/100/120/133/150/166/200/233/266/300MHz
Chip Set Intel
Video Chip Set None
Maximum Onboard 256MB (EDO & SDRAM supported)
Memory
Maximum Video None
Memory
Cache 256/512KB
BIOS Award
Dimensions 250mm x 220mm
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 connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------+------------+------------------+-----------|
| Power LED & | C1/pins 1 | Serial port 1 | CN2 |
| keylock | – 5 | | |
|----------------+------------+------------------+-----------|
| Speaker | C1/pins 7 | Parallel port | CN3 |
| | – 10 | | |
|----------------+------------+------------------+-----------|
| Green PC LED | C1/pins 12 | Floppy drive | CN4 |
| | & 13 | interface | |
|----------------+------------+------------------+-----------|
| Green PC | C1/pins 15 | IDE interface 1 | CN5 |
| connector | – 17 | | |
|----------------+------------+------------------+-----------|
| Reset switch | C1/pins 19 | IDE interface 2 | CN6 |
| | & 20 | | |
|----------------+------------+------------------+-----------|
| IDE interface | C2 | PS/2 mouse | CN7 |
| LED | | interface | |
|----------------+------------+------------------+-----------|
| CPU fan power | C3 | IR connector | IR1 |
|----------------+------------+------------------+-----------|
| SB link | C4 | 32-bit PCI slots | PC1 – PC4 |
| connector | | | |
|----------------+------------+------------------+-----------|
| Serial port 2 | CN1 | USB connector | USB |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|----------------------------------+-------+-----------------|
| » | CMOS memory normal operation | JP14 | Pins 1 & 2 |
| | | | closed |
|---+------------------------------+-------+-----------------|
| | CMOS memory clear | JP14 | Pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|------------------+--------------------+--------------------|
| 128MB | (2) 16M x 36 | None |
|------------------+--------------------+--------------------|
| 136MB | (2) 16M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 144MB | (2) 16M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 160MB | (2) 16M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 192MB | (2) 16M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 256MB | (2) 16M x 36 | (2) 16M 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) 16M x 64 | None |
|------------------+--------------------+--------------------|
| 128MB | (1) 8M x 64 | (1) 8M x 64 |
|------------------+--------------------+--------------------|
| 136MB | (1) 16M x 64 | (1) 1M x 64 |
|------------------+--------------------+--------------------|
| 144MB | (1) 16M x 64 | (1) 2M x 64 |
|------------------+--------------------+--------------------|
| 160MB | (1) 16M x 64 | (1) 4M x 64 |
|------------------+--------------------+--------------------|
| 192MB | (1) 16M x 64 | (1) 8M x 64 |
|------------------+--------------------+--------------------|
| 256MB | (1) 16M x 64 | (1) 16M x 64 |
|------------------------------------------------------------|
| Note: Board accepts SDRAM memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Note: The location of the cache is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 |
|----------------------------+-------------------------------|
| 256KB | (1) 32K x 64 |
|----------------------------+-------------------------------|
| 512KB | (1) 64K x 64 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier|JP4 |JP5 |JP6 |SW1/1|SW1/2|SW1/3|
| speed | speed | | | | | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|150MHz | 60MHz | 2x |1 & |2 & |1 & | On | Off | Off |
| | | | 2 | 3 | 2 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|166MHz | 66MHz | 2x |2 & |1 & |1 & | On | Off | Off |
| | | | 3 | 2 | 2 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|200MHz | 75MHz | 2x |1 & |2 & |2 & | On | Off | Off |
| | | | 2 | 3 | 3 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86L) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier|JP4 |JP5 |JP6 |SW1/1|SW1/2|SW1/3|
| speed | speed | | | | | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|150MHz | 60MHz | 2x |1 & |2 & |1 & | On | Off | Off |
| | | | 2 | 3 | 2 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|166MHz | 66MHz | 2x |2 & |1 & |1 & | On | Off | Off |
| | | | 3 | 2 | 2 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|200MHz | 75MHz | 2x |1 & |2 & |2 & | On | Off | Off |
| | | | 2 | 3 | 3 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86MX) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier|JP4 |JP5 |JP6 |SW1/1|SW1/2|SW1/3|
| speed | speed | | | | | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|166MHz | 60MHz | 2.5x |1 & |2 & |1 & | On | On | Off |
| | | | 2 | 3 | 2 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|200MHz | 66MHz | 2.5x |2 & |1 & |1 & | On | On | Off |
| | | | 3 | 2 | 2 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|200MHz | 75MHz | 2x |1 & |2 & |2 & | On | Off | Off |
| | | | 2 | 3 | 3 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|233MHz | 66MHz | 3x |2 & |1 & |1 & | Off | On | Off |
| | | | 3 | 2 | 2 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|233MHz | 83MHz | 2x |2 & |1 & |2 & | On | Off | Off |
| | | | 3 | 2 | 3 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|266MHz | 66MHz | 3.5x |2 & |1 & |1 & | Off | Off | Off |
| | | | 3 | 2 | 2 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K5) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier|JP4 |JP5 |JP6 |SW1/1|SW1/2|SW1/3|
| speed | speed | | | | | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
| 90MHz | 60MHz | 1.5x |1 & |2 & |1 & | Off | Off | Off |
| | | | 2 | 3 | 2 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|100MHz | 66MHz | 1.5x |2 & |1 & |1 & | Off | Off | Off |
| | | | 3 | 2 | 2 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|120MHz | 60MHz | 1.5x |1 & |2 & |1 & | Off | Off | Off |
| | | | 2 | 3 | 2 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|133MHz | 66MHz | 1.5x |2 & |1 & |1 & | Off | Off | Off |
| | | | 3 | 2 | 2 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|166MHz | 66MHz | 1.75x |2 & |1 & |1 & | On | On | Off |
| | | | 3 | 2 | 2 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier|JP4 |JP5 |JP6 |SW1/1|SW1/2|SW1/3|
| speed | speed | | | | | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|166MHz | 66MHz | 2.5x |2 & |1 & |1 & | On | On | Off |
| | | | 3 | 2 | 2 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|200MHz | 66MHz | 3x |2 & |1 & |1 & | Off | On | Off |
| | | | 3 | 2 | 2 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|233MHz | 66MHz | 3.5x |2 & |1 & |1 & | Off | Off | Off |
| | | | 3 | 2 | 2 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|266MHz | 66MHz | 4x |2 & |1 & |1 & | On | Off | On |
| | | | 3 | 2 | 2 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|300MHz | 66MHz | 4.5x |2 & |1 & |1 & | On | On | On |
| | | | 3 | 2 | 2 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IDT C6) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier|JP4 |JP5 |JP6 |SW1/1|SW1/2|SW1/3|
| speed | speed | | | | | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|150MHz | 75MHz | 2x |1 & |2 & |2 & | On | Off | Off |
| | | | 2 | 3 | 3 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|180MHz | 60MHz | 3x |1 & |2 & |1 & | Off | On | Off |
| | | | 2 | 3 | 2 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|200MHz | 66MHz | 3x |2 & |1 & |1 & | Off | On | Off |
| | | | 3 | 2 | 2 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier|JP4 |JP5 |JP6 |SW1/1|SW1/2|SW1/3|
| speed | speed | | | | | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
| 90MHz | 60MHz | 1.5x |1 & |2 & |1 & | Off | Off | Off |
| | | | 2 | 3 | 2 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|100MHz | 66MHz | 1.5x |2 & |1 & |1 & | Off | Off | Off |
| | | | 3 | 2 | 2 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|120MHz | 60MHz | 2x |1 & |2 & |1 & | On | Off | Off |
| | | | 2 | 3 | 2 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|133MHz | 66MHz | 2x |2 & |1 & |1 & | On | Off | Off |
| | | | 3 | 2 | 2 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|150MHz | 60MHz | 2.5x |1 & |2 & |1 & | On | On | Off |
| | | | 2 | 3 | 2 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|166MHz | 66MHz | 2.5x |2 & |1 & |1 & | On | On | Off |
| | | | 3 | 2 | 2 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|200MHz | 66MHz | 3x |2 & |1 & |1 & | Off | On | Off |
| | | | 3 | 2 | 2 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL MMX) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier|JP4 |JP5 |JP6 |SW1/1|SW1/2|SW1/3|
| speed | speed | | | | | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|150MHz | 60MHz | 2.5x |1 & |2 & |1 & | On | On | Off |
| | | | 2 | 3 | 2 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|166MHz | 66MHz | 2.5x |2 & |1 & |1 & | On | On | Off |
| | | | 3 | 2 | 2 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|200MHz | 66MHz | 3x |2 & |1 & |1 & | Off | On | Off |
| | | | 3 | 2 | 2 | | | |
|-------+--------+----------+----+----+----+-----+-----+-----|
|233MHz | 66MHz | 3.5x |2 & |1 & |1 & | Off | Off | Off |
| | | | 3 | 2 | 2 | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (SINGLE) |
|------------------------------------------------------------|
| Voltage | JP12 |
|----------------------------+-------------------------------|
| » | 3.45v | Pins 1 & 2 closed |
|----+-----------------------+-------------------------------|
| | 3.52v | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (DUAL) |
|------------------------------------------------------------|
| Voltage | SW1/4 | SW1/5 | SW1/6 | SW1/7 | SW1/8 |
|----------+---------+---------+---------+---------+---------|
| 1.30v | Off | Off | Off | Off | On |
|----------+---------+---------+---------+---------+---------|
| 1.35v | On | Off | Off | Off | On |
|----------+---------+---------+---------+---------+---------|
| 1.40v | Off | On | Off | Off | On |
|----------+---------+---------+---------+---------+---------|
| 1.45v | On | On | Off | Off | On |
|----------+---------+---------+---------+---------+---------|
| 1.50v | Off | Off | On | Off | On |
|----------+---------+---------+---------+---------+---------|
| 1.55v | On | Off | On | Off | On |
|----------+---------+---------+---------+---------+---------|
| 1.60v | Off | On | On | Off | On |
|----------+---------+---------+---------+---------+---------|
| 1.65v | On | On | On | Off | On |
|----------+---------+---------+---------+---------+---------|
| 1.70v | Off | Off | Off | On | On |
|----------+---------+---------+---------+---------+---------|
| 1.75v | On | Off | Off | On | On |
|----------+---------+---------+---------+---------+---------|
| 1.80v | Off | On | Off | On | On |
|----------+---------+---------+---------+---------+---------|
| 1.85v | On | On | Off | On | On |
|----------+---------+---------+---------+---------+---------|
| 1.90v | Off | Off | On | On | On |
|----------+---------+---------+---------+---------+---------|
| 1.95v | On | Off | On | On | On |
|----------+---------+---------+---------+---------+---------|
| 2.00v | Off | On | On | On | On |
|----------+---------+---------+---------+---------+---------|
| 2.05v | On | On | On | On | On |
|----------+---------+---------+---------+---------+---------|
| 2.0v | Off | Off | Off | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 2.1v | On | Off | Off | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 2.2v | Off | On | Off | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 2.3v | On | On | Off | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 2.4v | Off | Off | On | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 2.5v | On | Off | On | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 2.6v | Off | On | On | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 2.7v | On | On | On | Off | Off |
|----------+---------+---------+---------+---------+---------|
| 2.8v | Off | Off | Off | On | Off |
|----------+---------+---------+---------+---------+---------|
| 2.9v | On | Off | Off | On | Off |
|----------+---------+---------+---------+---------+---------|
| 3.0v | Off | On | Off | On | Off |
|----------+---------+---------+---------+---------+---------|
| 3.1v | On | On | Off | On | Off |
|----------+---------+---------+---------+---------+---------|
| 3.2v | Off | Off | On | On | Off |
|----------+---------+---------+---------+---------+---------|
| 3.3v | On | Off | On | On | Off |
|----------+---------+---------+---------+---------+---------|
| 3.4v | Off | On | On | On | Off |
|----------+---------+---------+---------+---------+---------|
| 3.5v | On | On | On | On | Off |
+------------------------------------------------------------+