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Acer V56LA Motherboard

Jumper and Connector Layout

V56LA Motherboard Diagram

Note - The blackened pin of a jumper represents pin 1.

Specification

The V56LA system has the following features,

  • ZIF socket 7 for an Intel Pentium 100/120/133/150/166/200MHz including MMX, Cyrix/IBM 6x86/6x86L and AMD K5/K6.
  • Four 72-pin SIMM sockets that support 4/8/16/32-MB 60/70ns fast page mode or EDO SIMMS. Maximum : 128MB
  • 256K pipeline-burst second level cache onboard which is not upgradeable.
  • 1-MB video memory which is not upgradeable.
  • 128K BIOS which is APM and Year 2000 compliant.
  • Two Enhanced IDE interfaces supporting a total of four devices including hard drives and CDROMs.
  • External ports -
    • PS/2 keyboard and mouse ports.
    • Two high-speed (NS16C550 compatible) serial ports.
    • One ECP/EPP high-speed parallel port.
    • VGA port.
  • Onboard chipsets -
    • Aladdin III system chipset (equivalent to Intel Triton II) with integrated E-IDE and I/O controllers.
    • ATI Mach64 VT PCI graphics adapter.
  • Plug and Play support.
  • Power management features (device standby, global standby).

How do I access my BIOS?

You can access the BIOS by pressing CTRL+ALT+ESC as the system is booting. At the bottom of the second start up screen you should see "To enter setup, press CTRL_ALT_ESC".

Note: If the system displays the Acer Splash Screen, once you hear the beep, you should begin pressing CTRL+ALT+ESC. You may need to press CTRL+ALT+ESC continuously until you access the BIOS setup screen.


CPU Jumper Settings

CPU Freq,JP8JP9JP13JP14JP15JP17
Intel Pentium
100 MHz3-6ON1-21-21-21-2
120 MHz2-5ON1-21-21-22-3
133 MHz3-6ON1-21-21-22-3
150 MHz2-5ON1-21-22-32-3
166 MHz3-6ON1-21-22-32-3
200MHz3-6ON1-21-22-31-2
Intel Pentium ODP/MMX
166 MHz3-6OFF1-21-22-32-3
200 MHz3-6OFF1-21-22-31-2
Cyrix/IBM 6x86
P120+1-4ON1-21-22-32-3
P150+2-5ON1-21-22-32-3
P166+3-6ON1-21-22-32-3
Cyrix/IBM 6x86L
P120+1-4OFF1-21-22-32-3
P150+2-5OFF1-21-22-32-3
P166+3-6OFF1-21-22-32-3
AMD K5
PR1202-5ON1-21-21-21-2
PR1333-6ON1-21-21-21-2
AMD K6
PR1502-5ON1-21-21-22-3
PR1663-6ON2-32-32-32-3

Jumper Settings

JumperSettingFunction
JP1
Onboard VGA
1-2
2-3
Disabled
Enabled
JP3
BIOS Type
1-2
2-3
Acer BIOS
OEM BIOS
JP4
Password Security
1-2
2-3
Check password
Bypass password
JP6
Second-level Cache
1-2
2-3
256 KB
512 KB
JP7
BIOS ROM type
1-2
2-3
1 Mbit
2 Mbit
JP16
Cache Operation Mode
1-2
2-3
Interleaved burst mode
Linear burst mode
JP18

LED (CN20) Function

1-2
2-3
LED for IDE and FDD
LED for IDE only
JP19
External Switch Func. (pin 19-20 of CN17)
1-2
2-3
Suspend/resume button
Reset button
JP20
External Switch Func. (CN21)
1-2
2-3
UPS enabled
UPS disabled
JP3001
Reserved
2-3Do not modify this setting

Connector Functions

ConnectorFunction
CN7ATI media connector
CN11IDE connector 2
CN12IDE connector 1
CN13Power connector
CN14Software shutdown connector
CN15Hard disk/message LED (hard disk or modem ring-in)
CN17Multifunction connector
CN18Optional IrDA connector
CN20FDD/HDD LED connector
CN21Power switch or 'Appears-off ' switch connector
FD1Diskette drive connector
FN1CPU fan connector

The multifunction connector CN17 accommodates the front panel connectors for speaker, LEDs, keylock, reset, and turbo. Figure below shows the pin assignments for each connector.
 
Multi Function Connector