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# ACER, INC.
AP5C
Processor Pentium
Processor 75/90/100/120/133MHz
Speed
Chip Set Intel
Max. Onboard 128MB
DRAM
Cache 256/512KB
BIOS AMI
Dimensions 330mm x 218mm
I/O Options Parallel port, serial ports (2), 32-bit PCI slots
(4), floppy drive interface, IDE interfaces (2),
green PC connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------------+----------+---------------+------------|
| Parallel port | CN1 | Chassis fan | CN12 |
| | | power | |
|--------------------+----------+---------------+------------|
| Serial port 1 | CN2 | Power LED & | CN14 pins |
| | | keylock | 1 - 5 |
|--------------------+----------+---------------+------------|
| Serial port 2 | CN3 | Speaker | CN14 pins |
| | | | 7 - 10 |
|--------------------+----------+---------------+------------|
| Floppy drive | CN4 | Green PC LED | CN14 pins |
| interface | | | 12 - 13 |
|--------------------+----------+---------------+------------|
| IDE interface 2 | CN5 | Green PC | CN14 pins |
| | | connector | 15 - 17 |
|--------------------+----------+---------------+------------|
| IDE interface 1 | CN6 | Reset switch | CN14 pins |
| | | | 19- 20 |
|--------------------+----------+---------------+------------|
| IDE interface LED | CN7 | 32-bit PCI | PC1 - PC4 |
| | | slots | |
|--------------------+----------+---------------+------------|
| Chassis fan power | CN11 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | On board I/O enabled | JP5 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | On board I/O disabled | JP5 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | PS/2 mouse enabled (mouse is | JP6 | Closed |
| | optional & may not be present) | | |
|---+----------------------------------+--------+------------|
| | PS/2 mouse disabled (mouse is | JP6 | Open |
| | optional & may not be present) | | |
|---+----------------------------------+--------+------------|
| | Flash BIOS voltage select 5v | JP13 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Flash BIOS voltage select 12v | JP13 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | JP15 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | JP15 | pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 8MB | (2) 1M x 36 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 24MB | (2) 1M x 36 | (2) 1M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 32MB | (2) 2M x 36 | (2) 1M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 32MB | (2) 4M x 36 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 40MB | (2) 2M x 36 | (2) 2M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 48MB | (2) 4M x 36 | (2) 1M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 56MB | (2) 4M x 36 | (2) 2M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 64MB | (2) 8M x 36 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 72MB | (2) 8M x 36 | (2) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 80MB | (2) 8M x 36 | (2) 1M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 80MB | (2) 8M x 36 | (2) 2M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 88MB | (2) 8M x 36 | (2) 2M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 104MB | (2) 8M x 36 | (2) 4M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 112MB | (2) 8M x 36 | (2) 2M x 36 | (2) 4M x 36 |
|------------+---------------+---------------+---------------|
| 128MB | (2) 8M x 36 | (2) 4M x 36 | (2) 4M x 36 |
|------------+---------------+---------------+---------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 | NONE |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG |
|------------------+--------------------+--------------------|
| 256KB | (8) 32K x 8 | (1) 32K x 8 |
|------------------+--------------------+--------------------|
| 512KB | (8) 64K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP12 |
|----------------------------+-------------------------------|
| 256KB | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 512KB | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE VOLTAGE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Type | JP14 | JP16 |
|--------------------+-------------------+-------------------|
| 3.3v | All Off | All On |
|--------------------+-------------------+-------------------|
| 3.3v/5v | All On | All Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP9 | JP10 | JP11 |
|--------+------------+------------+-------------------------|
| 75MHz | pins 1 & 2 | pins 1 & 2 | pins 1 & 2, 3 & 4 |
| | closed | closed | closed |
|--------+------------+------------+-------------------------|
| 90MHz | pins 2 & 3 | pins 1 & 2 | pins 1 & 2 closed |
| | closed | closed | |
|--------+------------+------------+-------------------------|
| 100MHz | pins 2 & 3 | pins 1 & 2 | pins 3 & 4 closed |
| | closed | closed | |
|--------+------------+------------+-------------------------|
| 120MHz | pins 2 & 3 | pins 2 & 3 | pins 1 & 2 closed |
| | closed | closed | |
|--------+------------+------------+-------------------------|
| 133MHz | pins 2 & 3 | pins 2 & 3 | pins 3 & 4 closed |
| | closed | closed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CONFIGURATION |
|------------------------------------------------------------|
| DMA | JP3 | JP4 |
|------------------+--------------------+--------------------|
| DMA 1 | pins 2 & 3 closed | pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| DMA 3 | pins 1 & 2 closed | pins 1 & 2 closed |
+------------------------------------------------------------+