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# ACER, INC.
AX5T-3
Device Type Mainboard
Processor AM K5/AM K6/Pentium/Pentium MMX/CX 6X86/CX
6X86L
Processor Speed 90/100/120/133/150/166/180/200/233MHz
Chip Set Unidentified
Maximum Onboard 256MB (Fast Page & EDO supported)
Memory
Cache 256/512KB
BIOS Award
Dimensions 305mm x 244mm
I/O Options 32-bit PCI slots (4), floppy drive interface,
(backplane) IDE interfaces (2), parallel port, PS/2 mouse
port, serial ports (2), IR connector, IrDA
connector, USB connector, ATX power connector
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-----------------+----------+-----------------+-------------|
| Serial port 1 | CN1 | IDE interface 1 | CN11 |
|-----------------+----------+-----------------+-------------|
| PS/2 mouse port | CN2 | Floppy drive | CN12 |
| | | interface | |
|-----------------+----------+-----------------+-------------|
| Parallel port | CN4 | HDD LED | CN13 |
| | | connector | |
|-----------------+----------+-----------------+-------------|
| Serial port 2 | CN5 | Power LED & | CN14/pins 1 |
| | | keylock | - 5 |
|-----------------+----------+-----------------+-------------|
| USB connector | CN6 | Speaker | CN14/pins 7 |
| | | | - 10 |
|-----------------+----------+-----------------+-------------|
| Soft power | CN7 | Reset switch | CN14/pins |
| switch | | | 19 & 20 |
| connector | | | |
|-----------------+----------+-----------------+-------------|
| CPU fan | CN8 | IR connector | CN15 |
| connector 2 | | | |
|-----------------+----------+-----------------+-------------|
| CPU fan | CN9 | IR/modem wake | CN16 |
| connector 1 | | up connector | |
|-----------------+----------+-----------------+-------------|
| IDE interface 2 | CN10 | 32-bit PCI | PC1 - PC4 |
| | | slots | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|--------------------------------+-------+-------------------|
| » | CMOS memory normal | JP14 | Pins 1 & 2 closed |
| | operation | | |
|---+----------------------------+-------+-------------------|
| | CMOS memory clear | JP14 | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 8MB | (2) 1M x 36 | None |
|------------------+--------------------+--------------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 16MB | (2) 2M x 36 | None |
|------------------+--------------------+--------------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (2) 4M x 36 | None |
|------------------+--------------------+--------------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (2) 8M x 36 | None |
|------------------+--------------------+--------------------|
| 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) 1M x 64 | (1) 1M x 64 |
|------------------+--------------------+--------------------|
| 16MB | (1) 2M x 64 | None |
|------------------+--------------------+--------------------|
| 24MB | (1) 2M x 64 | (1) 1M x 64 |
|------------------+--------------------+--------------------|
| 32MB | (1) 2M x 64 | (1) 2M x 64 |
|------------------+--------------------+--------------------|
| 32MB | (1) 4M x 64 | None |
|------------------+--------------------+--------------------|
| 40MB | (1) 4M x 64 | (1) 1M x 64 |
|------------------+--------------------+--------------------|
| 48MB | (1) 4M x 64 | (1) 2M x 64 |
|------------------+--------------------+--------------------|
| 64MB | (1) 4M x 64 | (1) 4M x 64 |
|------------------+--------------------+--------------------|
| 64MB | (1) 8M x 64 | None |
|------------------+--------------------+--------------------|
| 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 |
|------------------+--------------------+--------------------|
| 128MB | (1) 16M x 64 | None |
|------------------+--------------------+--------------------|
| 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Note: The configuration of the cache is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (PENTIUM) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| JP1 | JP2 | JP3 |JP4 |JP5 |JP6 |
| speed | speed | | | | | | | |
|-------+--------+----------+-----+-----+-----+----+----+----|
| 90MHz | 60MHz | 1.5x |1 & 2|1 & 2|1 & 2|1 & |2 & |1 & |
| | | | | | | 2 | 3 | 2 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|100MHz | 66MHz | 1.5x |1 & 2|1 & 2|1 & 2|2 & |2 & |1 & |
| | | | | | | 3 | 3 | 2 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|120MHz | 60MHz | 2x |2 & 3|1 & 2|1 & 2|1 & |2 & |1 & |
| | | | | | | 2 | 3 | 2 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|133MHz | 66MHz | 2x |2 & 3|1 & 2|1 & 2|2 & |2 & |1 & |
| | | | | | | 3 | 3 | 2 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|150MHz | 60MHz | 2.5x |2 & 3|2 & 3|1 & 2|1 & |2 & |1 & |
| | | | | | | 2 | 3 | 2 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|166MHz | 66MHz | 2.5x |2 & 3|2 & 3|1 & 2|2 & |2 & |1 & |
| | | | | | | 3 | 3 | 2 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|200MHz | 66MHz | 3x |1 & 2|2 & 3|1 & 2|2 & |2 & |1 & |
| | | | | | | 3 | 3 | 2 |
|------------------------------------------------------------|
|Note: Pins designated are in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (PENTIUM MMX) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| JP1 | JP2 | JP3 |JP4 |JP5 |JP6 |
| speed | speed | | | | | | | |
|-------+--------+----------+-----+-----+-----+----+----+----|
|150MHz | 60MHz | 2.5x |2 & 3|2 & 3|1 & 2|1 & |2 & |1 & |
| | | | | | | 2 | 3 | 2 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|166MHz | 66MHz | 2.5x |2 & 3|2 & 3|1 & 2|2 & |2 & |1 & |
| | | | | | | 3 | 3 | 2 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|200MHz | 66MHz | 3x |1 & 2|2 & 3|1 & 2|2 & |2 & |1 & |
| | | | | | | 3 | 3 | 2 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|233MHz | 66MHz | 3.5x |1 & 2|1 & 2|1 & 2|2 & |2 & |1 & |
| | | | | | | 3 | 3 | 2 |
|------------------------------------------------------------|
|Note: Pins designated are in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| JP1 | JP2 | JP3 |JP4 |JP5 |JP6 |
| speed | speed | | | | | | | |
|-------+--------+----------+-----+-----+-----+----+----+----|
|120MHz | 60MHz | 2x |2 & 3|1 & 2|1 & 2|1 & |2 & |1 & |
| | | | | | | 2 | 3 | 2 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|133MHz | 66MHz | 2x |2 & 3|1 & 2|1 & 2|2 & |2 & |1 & |
| | | | | | | 3 | 3 | 2 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|150MHz | 75MHz | 2x |2 & 3|1 & 2|1 & 2|2 & |1 & |1 & |
| | | | | | | 3 | 2 | 2 |
|------------------------------------------------------------|
|Note: Pins designated are in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86L) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| JP1 | JP2 | JP3 |JP4 |JP5 |JP6 |
| speed | speed | | | | | | | |
|-------+--------+----------+-----+-----+-----+----+----+----|
|150MHz | 60MHz | 2.5x |2 & 3|2 & 3|1 & 2|1 & |2 & |1 & |
| | | | | | | 2 | 3 | 2 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|166MHz | 66MHz | 2.5x |2 & 3|2 & 3|1 & 2|2 & |2 & |1 & |
| | | | | | | 3 | 3 | 2 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|200MHz | 66MHz | 3x |1 & 2|2 & 3|1 & 2|2 & |2 & |1 & |
| | | | | | | 3 | 3 | 2 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|233MHz | 66MHz | 3.5x |1 & 2|1 & 2|1 & 2|2 & |2 & |1 & |
| | | | | | | 3 | 3 | 2 |
|------------------------------------------------------------|
|Note: Pins designated are in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K5) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| JP1 | JP2 | JP3 |JP4 |JP5 |JP6 |
| speed | speed | | | | | | | |
|-------+--------+----------+-----+-----+-----+----+----+----|
| 90MHz | 60MHz | 1.5x |1 & 2|1 & 2|1 & 2|1 & |2 & |1 & |
| | | | | | | 2 | 3 | 2 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|100MHz | 66MHz | 1.5x |1 & 2|1 & 2|1 & 2|2 & |2 & |1 & |
| | | | | | | 3 | 3 | 2 |
|-------+--------+----------+-----+-----+-----+----+----+----|
| 90MHz | 60MHz | 1.5x |1 & 2|1 & 2|1 & 2|1 & |2 & |1 & |
| | | | | | | 2 | 3 | 2 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|100MHz | 66MHz | 1.5x |1 & 2|1 & 2|1 & 2|2 & |2 & |1 & |
| | | | | | | 3 | 3 | 2 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|116MHz | 66MHz | 1.75x |2 & 3|2 & 3|1 & 2|2 & |2 & |1 & |
| | | | | | | 3 | 3 | 2 |
|------------------------------------------------------------|
|Note: Pins designated are in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| JP1 | JP2 | JP3 |JP4 |JP5 |JP6 |
| speed | speed | | | | | | | |
|-------+--------+----------+-----+-----+-----+----+----+----|
|166MHz | 66MHz | 2.5x |2 & 3|2 & 3|1 & 2|2 & |2 & |1 & |
| | | | | | | 3 | 3 | 2 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|200MHz | 66MHz | 3x |1 & 2|2 & 3|1 & 2|2 & |2 & |1 & |
| | | | | | | 3 | 3 | 2 |
|-------+--------+----------+-----+-----+-----+----+----+----|
|233MHz | 66MHz | 3.5x |1 & 2|1 & 2|1 & 2|2 & |2 & |1 & |
| | | | | | | 3 | 3 | 2 |
|------------------------------------------------------------|
|Note: Pins designated are in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (SINGLE) |
|------------------------------------------------------------|
| Voltage | JP11 |
|----------------------------+-------------------------------|
| » | 3.45v | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (DUAL) |
|------------------------------------------------------------|
| Voltage | JP11 |
|----------------------------+-------------------------------|
| 2.8v | Pins 7 & 8 closed |
|----------------------------+-------------------------------|
| 2.9v | Pins 5 & 6 closed |
|----------------------------+-------------------------------|
| 3.2v | Pins 9 & 10 closed |
|----------------------------+-------------------------------|
| 3.52v | Pins 3 & 4 closed |
+------------------------------------------------------------+