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HomeProductsMainboardsSocket 478Intel chipsetAB40/AB40RSpecification


Mainboard AB40, AB40R

Subchapters: Specification | Press |



  • Chipset
    Intel 845 Chipset (new version with DDR SDRAM support)
    The chipset is also described as "i845D" in the media.
    Memory Controller Hub (MCH): Intel 82845 with passive cooler 
    I/O Controller Hub (ICH2): Intel 82801 BA
    BUS: 100/133MHz 
  • Socket 478 CPU support
    Intel Pentium 4 processor for socket 478 (Willamette or Northwood) and P4 Celeron
    with 400MHz FSB (100MHz BUS, Quad-Datarate process)
    successfully tested with: P4 Celeron up to 2,0 GHz, P4 (Willamette 256KB Cache) up to 2,2GHz and
    P4 (Northwood 400MHz FSB) up to 2,5GHz
    FSB infinitely adjustable: 100...166MHz (in 1 MHz-steps)
    Multiplier adjustable from 10 up to 50
    CPU voltage adjustable (Vcore: 1,100 ... 1,850V)
  • Expansion slots
    1 x AGP (v2.0) slot supports 4X mode
    5 x 32 Bit PCI (v2.2)
    Important note: AGP slot supports 1,5V mode only (see below)
  • Onboard IDE Controller
    2 Channel Enhanced PCI IDE
    for up to 4 IDE devices
    supports UltraDMA/100
    incl. ATA-100 cable
  • AB40R only: IDE RAID Controller, UDMA/100
    Chip: Promise 265R, supports RAID mode 0 and 1 (not simultaneously)
    with detailed manual and additional ATA-100 cable
  • Integrated Multi Channel Hardware Audio Function:
    C-Media 8738 Hardware-Audio-Controller
    supports 5.1 speaker system, C3DX Positional Audio in 6 channel-speaker-mode
    HRTF-3D Positional Audio, supports Direct Sound 3D and A3D interface
    Legacy SBPRO compatible
    Connectors on the backpanel: line-in, line-out, microphone, MIDI/gameport, line in/out
    Connectors on the bracket: for bass/center, bracket optionally included in delivery
    In Multi Channel operation: line-out = front, Line-In = rear and onboard connector for bass/center
    More line-ins on the mainboard Audio-in for CD-ROM and AUX.
  • Backpanel connectors
    1 x PS/2 Mouse
    1 x PS/2 Keyboard
    1 x Parallel (SSP/EPP/ECP)
    2 x Serial (16550 compatible, Fifo)
    2 x USB (2 further onboard)
    Audio: line-in, line-out, , MIDI/gameport
  • Onboard connectors
    1 x Floppy drive (up to 2,88 MB)
    2 x USB (additional)
    1 x Infrared (COM2 can be used for infrared communication, IrDA adapter not included in delivery content)
    1 x WOL (Wake on Lan)
    3 x Fan (CPU, AGP, chipset)
  • Memory
    2 x 184-Pin DIMM-Socket
    for PC1600 or PC2100 unbuffered DDR SDRAM memory
    with 100 or 133MHz clock frequency up to 2GB capacity
  • Hardware monitoring
    CPU temperature, voltages and fan revolution
  • Power Management
    ACPI Version 1.0 (Advanced Configuration and Power Interface)
    supports power saving modes: S1 (Snoop), S3 (Suspend to RAM), S5 (Soft-Off)
    On/Off button with two functions: Suspend-mode / soft off
    State after Power Failure: Auto/Off
  • BIOS
    Award V6.0PG  PnP Green BIOS
    stored in 4MBit LPC Flash memory chip
  • ATX power supply connector
    Standard 20-Pin-ATX power supply connector
    Additional 4-Pin connector for 12V
    Additional 6-Pin connector for 3,3 and 5V
  • Form Factor
    ATX: 30,5 x 24,4 cm


Socket 478
Intel chipset
AB60 R/N

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