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Acer V50LA Motherboard

v50la board diagram

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


  • CPU: Pentium 75/90/100/120/133/150/166 MHz
  • Memory: Four SIMM sockets that support up to 128MB of system memory using 32-MB 70ns fast-page or EDO-type SIMMs
  • Video Memory: 1-MB video memory onboard upgradable to 2-MB using 70ns video memory chips
  • Cache:
    • 16-KB internal cache
    • 256-KB asynchronous (15ns 32K*8 SRAMs) or synchronous manufacturing optional pipeline-burst (15ns 32K*32 SRAMs) second level cache
  • BIOS:
    • 128-KB Flash ROM with system BIOS
    • SST Flash RON 29EE010
    • WINBOND Flash ROM 29EE011
    • Intel Boot Block mode Flash ROM 28F001
  • Video Support: Supports a maximum resolution of 1280x1024 (ATI 264CT PCI VGA accelerator onboard)
  • Audio Support: Supports line-in, line-out, mic-in, and MIDI/game port (Crystal 4232 and Yamaha 289 OPL3L onboard)
  • Hard Disk Interface: Two embedded PCI Enhanced IDE interfaces support up to four IDE devices
  • Diskette Drive Interface: One diskette drive interface that supports 2.88/1.44/1.2-MB diskette drives. Supports three-mode diskette types.
  • Onboard I/O: One PS/2 Keyboard and one mouse port. Two NS16C550-compatible serial ports and one parallel port that supports EPP/ECP modes
  • Real-time Clock: System clock/calendar with 128 bytes CMOS RAM
  • Expansion Slots:
    • Desktop Models:
      • One ISA slot
      • Two PCI/ISA slots
    • Minitower Models:
      • Four ISA slots, One ISA/PCI slot
      • Three PCI slots
  • Power Supply: 145-watt 115v/230v switching power supply

Jumper Settings

JumperSettingFunction
JP1
BIOS Type
1-2
2-3*
For models with Acer BIOS
For models with OEM BIOS
JP2
Password Check
1-2
2-3*
Check password
Bypass password
JP3
Boot Block Feature **
1-2
2-3*
Enable Flash ROM boot block feature
Disable Flash ROM boot block Feature
JP5
BIOS ROM Type
1-2
2-3
3-4*
EPROM
Flash ROM (Intel 28F010, 28F001)
Flash ROM (SST, Winbond 29EE010)
JP4
CPU Core/Host Bus Frequency
1-4
2-5*
3-6
75/50 MHz
90/60, 120/60, 150/60 MHz
100/66, 133/66, 167/66 MHz
JP6,JP7
Second-level Cache
1-2*,1-2*
256 KB
All other settings reserved
JP8
CPU Type
1-2*
2-3
Intel P54C or AMD K5
Cyrix M1
JP16,JP19
CPU / Clock Ratio
1-2,1-2*
1-2, 2-3
2-3, 1-2
2-3, 2-3
Intel P54C  M1 and K5
3/2 3/1
2/1 2/1
3/1
5/2
JP21
CPU Voltage
1-2*
2-3
3.38V for VR and standard CPU type
3.52V for VRE CPU type
JP23
LED Support
1-2
2-3*
For IDE and diskette drives
For IDE drive only

** The boot block feature works only with Intel 28F001 Flash ROM and requires JP5 to be set to pins 2-3.

*Default setting.

Connector Functions

ConnectorFunction
CN1Audio/MIDI connector
CN2Fax/voice modem connector
CN4Video feature connector
CN5WaveTable connector
CN6CD-audio line-in connector
CN7Feature connector for nultimedia or Ethernet solution
CN8IDE channel 1
CN9IDE channel 2
CN10Diskette drive connector
CN11Power connector
CN12Standby power connector
CN14Multifunction connector
CN15IrDA connector
CN16Hard disk drive LED connector
CN17Hard disk drive LED connector (generic)
CNX1SMM switch/Reset switch


v50la connector diagram