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Acer V62X Motherboard

System Overview

  • System board
    • Layers: 4 layers
    • PCB Size: ATX size (Length = 30.5cm, Width = 24.4cm)
  • Chipsets
    • Intel SB82441FX (PCI & Memory Controller)
    • Intel SB82442FX (Data Buffer Accelerator)
    • Intel SB82371SB (PCI ISA IDE Xcelerator & ISA bridge)
  • PCI Local IDE - Embedded in SB82371SB(PIIX3)
  • Ultra I/O
    • SMC 37C93X/935 APM
    • On-chip (SMC 37C93X/935APM) RTC
    • On-chip (SMC 37C93X/935APM) keyboard controller
    • On-chip (SMC 37C93X/935APM) FDD controller
  • System and PCI clock generator - ICW W49C65-22/32 or IMISC672
  • System BIOS
    • Size: 128KB/256KB
    • Type: SST 29EE010/29EE020
  • Hardware Monitor function - ADM9264/9268
  • Buzzer
  • USB connector
  • LED board connector for power LED, Reset (or SMM) key and external speaker connector
  • IDE LED connector
  • Software Shutdown Power Control connector
  • IrDA module connector
  • Three ISA and four PCI slots, one combo slot
  • CPU Type
    • Intel Pentium II CPU
    • CPU internal speed: 233/266

Jumper Settings

JumperSettingFunction
JP1 - Power On Setting
(only for S/W power supply)
1-2Test mode
 2-3*Normal mode
JP6 - ROM Select1-2EPROM
 2-3Flash EEROM & 28F001
 Open*29EE010/020
SW1 (Switch 3) - Password CheckOn *Bypass Password
 OffCheck password
SW1 (Switch 4) - BIOS LogoOnOEM BIOS
 Off *Acer BIOS

CPU select

JumperJP3JP4JP5
Pentium Pro1-21-21-3, 2-4
Pentium II2-3 *2-3 *3-5, 4-6 *

Frequency Select SW1

SW1-1SW1-2Host ClockPCI Clock
OnOnReservedReserved
OffOn60 MHz30 MHz
On *Off *66 MHz33 MHz
OffOffXIN/2XIN/4

Core/Bus Ratio SW1

SW1-5SW1-6SW1-7SW1-6Core/Bus Ratio
OnOnOnOn2
OnOnOffOn3
On *On *On *Off *4
OnOnOffOff5
OnOffOnOn2.5
OnOffOffOn3.5
OnOffOnOff4.5
OnOffOffOff5.5
OffOnOnOn6
OffOnOffOn7
OffOnOnOff8
OffOffOnOn6.5
OffOffOffOn7.5
OffOffOnOff1.5
OffOffOffOff2
OffOnOffOffReserved

Connector Functions

ConnectorFunction
CN1Power connector
CN3USB port(s)
CN4PS/2 keyboard port
CN5In-Target Probe (ITP) debug port
CN6PS/2 mouse port
CN7Parallel/printer port
CN9COM1/2 port(s)
CN10HDD channel 2 connector
CN11HDD channel 1 connector
CN12InfraRed (IrDA) connector
CN13FDD connector
CN14Multifunction connector

Pins 2-6 - Power LED
Pins 7-8 - Reset
Pins 1-3 - Speaker
JP2Standby power cable connector
JP8Software power control connector
JP7HDD LED connector

Memory

Has 3 banks of 2 SIMM sockets, which will accept 4-/8-/16-/32-/64-MB SIMMs up to a maximum of 320MB (Acer's memory chart only went as high as 2x32MB, 2x64MB, 2x64MB, so I don't know if the board will accept all banks filled with 64MB SIMMs). Each bank must contain two identical chips (ie 2x 4MB or 2x8MB) though memory can differ between banks.

Issue - After upgrading memory beyond 64MB the memory count only shows 32MB or 64MB. This is a known problem and can be cured by downloading the latest version of the BIOS from Acer's website.


Cache

You might notice that the board does not come with an external second-level cache. This is because the second-level cache is already integrated in the Pentium II CPU card. The CPU card may come with 256-KB or 512-KB second-level cache size. Cache is not upgradeable.