(TXT) View Source
# ACER, INC.
AX53
Device Type Mainboard
Processor CX 6X86/AM K5/AM K6/Pentium/Pentium MMX
Processor Speed 75/90/100/120/133/150/166/200MHz
Chip Set Intel
Video Chip Set None
Maximum Onboard 512MB (EDO & SDRAM supported)
Memory
Maximum Video None
Memory
Cache 256/512KB
BIOS AMI
Dimensions 284mm x 208mm
I/O Options 32-bit PCI slots (4), floppy drive interface,
green PC connector, IDE interfaces (2),
parallel port, PS/2 mouse port, serial ports
(2), cache slot, IR connector, USB connector,
ATX power connector
NPU Options None
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+----------------+-------------|
| ATX power | ATX | IDE interface | CN13 |
| connector | | LED | |
|------------------+----------+----------------+-------------|
| Serial port 2 | C1 | USB connector | CN14 |
|------------------+----------+----------------+-------------|
| Parallel port | C2 | Power LED & | CN15/pins 1 |
| | | keylock | - 5 |
|------------------+----------+----------------+-------------|
| PS/2 mouse port | C3 | Speaker | CN15/pins 7 |
| | | | - 10 |
|------------------+----------+----------------+-------------|
| Serial port 1 | CN1 | Green PC LED | CN15/pins |
| | | | 12 & 13 |
|------------------+----------+----------------+-------------|
| CPU fan power | CN5 | Green PC | CN15/pins |
| | | connector | 15 - 17 |
|------------------+----------+----------------+-------------|
| Floppy drive | CN6 | Reset switch | CN15/pins |
| interface | | | 19 & 20 |
|------------------+----------+----------------+-------------|
| IDE interface 2 | CN9 | 32-bit PCI | PC1 - PC4 |
| | | slots | |
|------------------+----------+----------------+-------------|
| IDE interface 1 | CN10 | Cache slot | SL1 |
|------------------+----------+----------------+-------------|
| IR connector | CN12 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| » | ATX power supply enabled | JP1 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | ATX power supply disabled | JP1 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | CMOS memory normal operation | JP9 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | CMOS memory clear | JP9 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | On board I/O enabled | JP12 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | On board I/O disabled | JP12 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP13 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | PS/2 mouse enabled | JP14 | Closed |
|---+---------------------------------+-------+--------------|
| | PS/2 mouse disabled | JP14 | Open |
|---+---------------------------------+-------+--------------|
| » | Keyboard clock select ISA clock | JP15 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Keyboard clock select 12MHz | JP15 | Pins 3 & 4 |
| | | | 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION (CON'T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 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 |
|------------------+--------------------+--------------------|
| 256MB | (2) 32M x 36 | None |
|------------------+--------------------+--------------------|
| 264MB | (2) 32M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 272MB | (2) 32M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 288MB | (2) 32M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 320MB | (2) 32M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 384MB | (2) 32M x 36 | (2) 16M x 36 |
|------------------+--------------------+--------------------|
| 512MB | (2) 32M x 36 | (2) 32M x 36 |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | SL1 |
|--------------+--------------------+------------------------|
| 256KB | (2) 32K x 32 | Not installed |
|--------------+--------------------+------------------------|
| 512KB | (2) 32K x 32 | 256KB module installed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP7 |
|----------------------------+-------------------------------|
| 256KB | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 512KB | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE MODULE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP16 |
|------------------------------+-----------------------------|
| Module with TAG | Pins 2 & 3 closed |
|------------------------------+-----------------------------|
| Module without TAG | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP2 | JP4 | JP5 | JP8 |
| speed | speed | | | | | |
|--------+--------+------------+------+-------+------+-------|
| 120MHz | 50MHz | 2x | Open | 1 & | Open | 1 & |
| | | | | 2, 3 | | 2, 3 |
| | | | | & 4, | | & 4 |
| | | | | 5 & 6 | | |
|--------+--------+------------+------+-------+------+-------|
| 133MHz | 55MHz | 2x | Open | 1 & | Open | Open |
| | | | | 2, 3 | | |
| | | | | & 4, | | |
| | | | | 5 & 6 | | |
|--------+--------+------------+------+-------+------+-------|
| 150MHz | 60MHz | 2x | Open | 1 & | Open | 1 & 2 |
| | | | | 2, 3 | | |
| | | | | & 4, | | |
| | | | | 5 & 6 | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K5) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP2 | JP4 | JP5 | JP8 |
| speed | speed | | | | | |
|--------+--------+------------+------+-------+------+-------|
| 75MHz | 50MHz | 1.5x | 1 & | 1 & | Open | 1 & |
| | | | 2 | 2, 3 | | 2, 3 |
| | | | | & 4, | | & 4 |
| | | | | 5 & 6 | | |
|--------+--------+------------+------+-------+------+-------|
| 90MHz | 60MHz | 1.5x | 1 & | 1 & | Open | 1 & 2 |
| | | | 2 | 2, 3 | | |
| | | | | & 4, | | |
| | | | | 5 & 6 | | |
|--------+--------+------------+------+-------+------+-------|
| 100MHz | 66MHz | 1.5x | 1 & | 1 & | Open | 3 & 4 |
| | | | 2 | 2, 3 | | |
| | | | | & 4, | | |
| | | | | 5 & 6 | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP2 | JP4 | JP5 | JP8 |
| speed | speed | | | | | |
|--------+--------+------------+------+--------+------+------|
| 75MHz | 50MHz | 1.5x | 1 & | 1 & 2, | Open | 1 & |
| | | | 2, 3 | 3 & 4, | | 2, 3 |
| | | | & 4 | 5 & 6 | | & 4 |
|--------+--------+------------+------+--------+------+------|
| 90MHz | 60MHz | 1.5x | 1 & | 1 & 2, | Open | 1 & |
| | | | 2, 3 | 3 & 4, | | 2 |
| | | | & 4 | 5 & 6 | | |
|--------+--------+------------+------+--------+------+------|
| 100MHz | 66MHz | 1.5x | 1 & | 1 & 2, | Open | 3 & |
| | | | 2, 3 | 3 & 4, | | 4 |
| | | | & 4 | 5 & 6 | | |
|--------+--------+------------+------+--------+------+------|
| 120MHz | 60MHz | 2x | 3 & | 1 & 2, | Open | 1 & |
| | | | 4, 5 | 3 & 4, | | 2 |
| | | | & 6 | 5 & 6 | | |
|--------+--------+------------+------+--------+------+------|
| 133MHz | 66MHz | 2x | 3 & | 1 & 2, | Open | 3 & |
| | | | 4, 5 | 3 & 4, | | 4 |
| | | | & 6 | 5 & 6 | | |
|--------+--------+------------+------+--------+------+------|
| 150MHz | 60MHz | 2.5x | 5 & | 1 & 2, | Open | 1 & |
| | | | 6, 7 | 3 & 4, | | 2 |
| | | | & 8 | 5 & 6 | | |
|--------+--------+------------+------+--------+------+------|
| 166MHz | 66MHz | 2.5x | 5 & | 1 & 2, | Open | 3 & |
| | | | 6, 7 | 3 & 4, | | 4 |
| | | | & 8 | 5 & 6 | | |
|--------+--------+------------+------+--------+------+------|
| 200MHz | 66MHz | 3x | 1 & | 1 & 2, | Open | 3 & |
| | | | 2, 7 | 3 & 4, | | 4 |
| | | | & 8 | 5 & 6 | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL MMX) |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP2 | JP4 | JP5 | JP8 |
| speed | speed | | | | | |
|--------+--------+------------+--------+------+------+------|
| 150MHz | 60MHz | 2.5x | 5 & 6, | Open | 1 & | 1 & |
| | | | 7 & 8 | | 2, 3 | 2 |
| | | | | | & 4 | |
|--------+--------+------------+--------+------+------+------|
| 166MHz | 66MHz | 2.5x | 5 & 6, | Open | 1 & | 3 & |
| | | | 7 & 8 | | 2, 3 | 4 |
| | | | | | & 4 | |
|--------+--------+------------+--------+------+------+------|
| 200MHz | 66MHz | 3x | 1 & 2, | Open | 1 & | 3 & |
| | | | 7 & 8 | | 2, 3 | 4 |
| | | | | | & 4 | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (SINGLE) |
|------------------------------------------------------------|
| Voltage | JP6 |
|----------------------------+-------------------------------|
| » | 3.45v | Pins 1 & 2 closed |
|----+-----------------------+-------------------------------|
| | 3.52v | Pins 3 & 4 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION (DUAL) |
|------------------------------------------------------------|
| V core | JP3 |
|----------------------------+-------------------------------|
| | 2.5v | Pins 11 & 12 closed |
|---+------------------------+-------------------------------|
| | 2.7v | Pins 9 & 10 closed |
|---+------------------------+-------------------------------|
| | 2.8v | Pins 7 & 8 closed |
|---+------------------------+-------------------------------|
| | 2.9v | Pins 5 & 6 closed |
|---+------------------------+-------------------------------|
| » | 3.43v | Pins 3 & 4 closed |
|---+------------------------+-------------------------------|
| | 3.52v | Pins 1 & 2 closed |
+------------------------------------------------------------+