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# ACER, INC.
V56LA
Device Type Mainboard
Processor CX 6X86/IBM 6X86/CX 6X86L/IBM 6X86L/AM
K5/Pentium/
Pentium MMX
Processor Speed 100/120/133/150/166/200MHz
Chip Set Unidentified
Video Chip Set Unidentified
Maximum Onboard 128MB
Memory
Maximum Video 2MB
Memory
Cache 256/512KB
BIOS Acer
Dimensions 254mm x 218mm
I/O Options Ethernet 10BaseT connector, floppy drive
interface, green PC connector, IDE interfaces
(2), parallel port, PS/2 mouse port, serial
ports (2), VGA port, riser slot, cache slot,
IR connector, wavetable connector, audio in –
CD-ROM
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-----------------+----------+-----------------+-------------|
| Parallel port | C1 | IDE interface 2 | CN12 |
|-----------------+----------+-----------------+-------------|
| Serial port 2 | C2 | Software | CN14 |
| | | shutdown | |
|-----------------+----------+-----------------+-------------|
| Serial port 1 | C3 | Active/LED | CN15 |
| | | connector | |
|-----------------+----------+-----------------+-------------|
| PS/2 mouse port | C4 | Power LED | CN17/pins 3 |
| | | | - 5 |
|-----------------+----------+-----------------+-------------|
| Ethernet | C5 | Green PC | CN17/pins |
| 10BaseT | | connector | 19 & 20 |
| connector | | | |
|-----------------+----------+-----------------+-------------|
| VGA port | CN1 | IR connector | CN18 |
|-----------------+----------+-----------------+-------------|
| Modem connector | CN3 | Floppy/IDE | CN20 |
| | | interface LED | |
|-----------------+----------+-----------------+-------------|
| Audio connector | CN4 | Power switch | CN21 |
| | | connector | |
|-----------------+----------+-----------------+-------------|
| AMC connector | CN5 | Floppy drive | FD1 |
| | | interface | |
|-----------------+----------+-----------------+-------------|
| ATI media | CN7 | Chassis fan | FN1 |
| connector | | power | |
|-----------------+----------+-----------------+-------------|
| Audio in – | CN8 | Riser slot | SL1 |
| CD-ROM | | | |
|-----------------+----------+-----------------+-------------|
| Wavetable | CN10 | Cache slot | SL2 |
| connector | | | |
|-----------------+----------+-----------------+-------------|
| IDE interface 1 | CN11 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|------------------------------------+-------+---------------|
| » | On board video enabled | JP1 | Pins 2 & 3 |
| | | | closed |
|---+--------------------------------+-------+---------------|
| | On board video disabled | JP1 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+-------+---------------|
| » | BIOS type select Acer | JP3 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+-------+---------------|
| | BIOS type select OEM | JP3 | Pins 2 & 3 |
| | | | closed |
|---+--------------------------------+-------+---------------|
| » | Password disabled | JP4 | Pins 2 & 3 |
| | | | closed |
|---+--------------------------------+-------+---------------|
| | Password enabled | JP4 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+-------+---------------|
| » | BIOS type select Block ROM | JP7 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+-------+---------------|
| | BIOS type select Flash ROM | JP7 | Pins 2 & 3 |
| | | | closed |
|---+--------------------------------+-------+---------------|
| » | Factory configured - do not | JP16 | Unidentified |
| | alter | | |
|---+--------------------------------+-------+---------------|
| » | LED select IDE LED only | JP18 | Pins 2 & 3 |
| | | | closed |
|---+--------------------------------+-------+---------------|
| | LED select IDE & floppy | JP18 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+-------+---------------|
| » | External switch select green | JP19 | Pins 1 & 2 |
| | PC | | closed |
|---+--------------------------------+-------+---------------|
| | External switch select reset | JP19 | Pins 2 & 3 |
| | | | closed |
|---+--------------------------------+-------+---------------|
| » | Software shutdown select | JP20 | Pins 1 & 2, 4 |
| | software shutdown | | & 5 closed |
|---+--------------------------------+-------+---------------|
| | Software shutdown select | JP20 | Pins 2 & 3, 5 |
| | appears off | | & 6 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | SL2 |
|--------------+--------------------+------------------------|
| 256KB | (2) 32K x 32 | Not installed |
|--------------+--------------------+------------------------|
| 512KB | (2) 32K x 32 | 256KB module installed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP6 |
|----------------------------+-------------------------------|
| 256KB | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 512KB | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VIDEO MEMORY CONFIGURATION |
|------------------------------------------------------------|
| Note: The location of the video memory is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier|JP8 | JP9 |JP13 |JP14 |JP15 |JP17|
| speed |speed | | | | | | | |
|-------+------+----------+----+------+-----+-----+-----+----|
|120MHz |50MHz | 2x |1 & |Closed|1 & 2|1 & 2|1 & 2|2 & |
| | | | 4 | | | | | 3 |
|-------+------+----------+----+------+-----+-----+-----+----|
|150MHz |60MHz | 2x |2 & |Closed|1 & 2|1 & 2|1 & 2|2 & |
| | | | 5 | | | | | 3 |
|-------+------+----------+----+------+-----+-----+-----+----|
|166MHz |66MHz | 2x |3 & |Closed|1 & 2|1 & 2|1 & 2|2 & |
| | | | 6 | | | | | 3 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IBM 6X86) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier|JP8 | JP9 |JP13 |JP14 |JP15 |JP17|
| speed |speed | | | | | | | |
|-------+------+----------+----+------+-----+-----+-----+----|
|120MHz |50MHz | 2x |1 & |Closed|1 & 2|1 & 2|1 & 2|2 & |
| | | | 4 | | | | | 3 |
|-------+------+----------+----+------+-----+-----+-----+----|
|150MHz |60MHz | 2x |2 & |Closed|1 & 2|1 & 2|1 & 2|2 & |
| | | | 5 | | | | | 3 |
|-------+------+----------+----+------+-----+-----+-----+----|
|166MHz |66MHz | 2x |3 & |Closed|1 & 2|1 & 2|1 & 2|2 & |
| | | | 6 | | | | | 3 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86L) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier|JP8 |JP9 |JP13 |JP14 |JP15 |JP17 |
| speed | speed | | | | | | | |
|-------+-------+----------+----+----+-----+-----+-----+-----|
|120MHz | 50MHz | 2x |1 & |Open|1 & 2|1 & 2|1 & 2|2 & 3|
| | | | 4 | | | | | |
|-------+-------+----------+----+----+-----+-----+-----+-----|
|150MHz | 60MHz | 2x |2 & |Open|1 & 2|1 & 2|1 & 2|2 & 3|
| | | | 5 | | | | | |
|-------+-------+----------+----+----+-----+-----+-----+-----|
|166MHz | 66MHz | 2x |3 & |Open|1 & 2|1 & 2|1 & 2|2 & 3|
| | | | 6 | | | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IBM 6X86L) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier|JP8 |JP9 |JP13 |JP14 |JP15 |JP17 |
| speed | speed | | | | | | | |
|-------+-------+----------+----+----+-----+-----+-----+-----|
|120MHz | 50MHz | 2x |1 & |Open|1 & 2|1 & 2|1 & 2|2 & 3|
| | | | 4 | | | | | |
|-------+-------+----------+----+----+-----+-----+-----+-----|
|150MHz | 60MHz | 2x |2 & |Open|1 & 2|1 & 2|1 & 2|2 & 3|
| | | | 5 | | | | | |
|-------+-------+----------+----+----+-----+-----+-----+-----|
|166MHz | 66MHz | 2x |3 & |Open|1 & 2|1 & 2|1 & 2|2 & 3|
| | | | 6 | | | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K5) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier|JP8 | JP9 |JP13 |JP14 |JP15 |JP17|
| speed |speed | | | | | | | |
|-------+------+----------+----+------+-----+-----+-----+----|
|120MHz |60MHz | 2x |2 & |Closed|1 & 2|1 & 2|1 & 2|1 & |
| | | | 5 | | | | | 2 |
|-------+------+----------+----+------+-----+-----+-----+----|
|133MHz |66MHz | 2x |3 & |Closed|1 & 2|1 & 2|1 & 2|1 & |
| | | | 6 | | | | | 2 |
|-------+------+----------+----+------+-----+-----+-----+----|
|150MHz |60MHz | 2.5x |2 & |Closed|1 & 2|1 & 2|1 & 2|2 & |
| | | | 5 | | | | | 3 |
|-------+------+----------+----+------+-----+-----+-----+----|
|166MHz |66MHz | 2.5x |3 & |Closed|1 & 2|1 & 2|1 & 2|2 & |
| | | | 6 | | | | | 3 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
| CPU |Clock |Multiplier|JP8 | JP9 |JP13 |JP14 |JP15 |JP17|
| speed |speed | | | | | | | |
|-------+------+----------+----+------+-----+-----+-----+----|
|100MHz |66MHz | 1.5x |3 & |Closed|1 & 2|1 & 2|1 & 2|1 & |
| | | | 6 | | | | | 2 |
|-------+------+----------+----+------+-----+-----+-----+----|
|120MHz |60MHz | 2x |2 & |Closed|1 & 2|1 & 2|1 & 2|2 & |
| | | | 5 | | | | | 3 |
|-------+------+----------+----+------+-----+-----+-----+----|
|133MHz |66MHz | 2x |3 & |Closed|1 & 2|1 & 2|1 & 2|2 & |
| | | | 6 | | | | | 3 |
|-------+------+----------+----+------+-----+-----+-----+----|
|150MHz |60MHz | 2.5x |2 & |Closed|1 & 2|1 & 2|2 & 3|2 & |
| | | | 5 | | | | | 3 |
|-------+------+----------+----+------+-----+-----+-----+----|
|166MHz |66MHz | 2.5x |3 & |Closed|1 & 2|1 & 2|2 & 3|2 & |
| | | | 6 | | | | | 3 |
|-------+------+----------+----+------+-----+-----+-----+----|
|200MHz |66MHz | 3x |3 & |Closed|1 & 2|1 & 2|2 & 3|1 & |
| | | | 6 | | | | | 2 |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL MMX) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier|JP8 |JP9 |JP13 |JP14 |JP15 |JP17 |
| speed | speed | | | | | | | |
|-------+-------+----------+----+----+-----+-----+-----+-----|
|166MHz | 66MHz | 2.5x |3 & |Open|1 & 2|1 & 2|2 & 3|2 & 3|
| | | | 6 | | | | | |
|-------+-------+----------+----+----+-----+-----+-----+-----|
|200MHz | 66MHz | 3x |3 & |Open|1 & 2|1 & 2|2 & 3|1 & 2|
| | | | 6 | | | | | |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+