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 Quasar2 (MS6786) KM400A ver 2.0
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Contents
Specifications
  • Form Factor: µATX 24.4 cm. x 22.4 cm Form Factor
  • CPU Support
    • Socket -A (Socket 462) for AMD PGA Athlon processor at 3200 MHz and more.
    • 133/166 and 200 MHz Host bus speed (uses dual clocking to obtain 266, 333 and 400 MHz FSB)
  • System Memory
    • Two 184-pin DDR SDRAM DIMM sockets
    • Support for single-sided or double-sided DIMMs (DDR266, DDR333 and DDR400)
    • Support for up to 2 GB system memory
  • KM400A Chipset: VT8378 system controller and VT8235 V-Link south bridge Chipset consisting of the following
      • High performance SMA North Bridge: Integrated VIA Apollo KT400 and graphics accelerator in a single chip
      • 64-bit Advanced Memory controller supporting DDR333, 266 and 200 SDRAM
      • External AGP 8x bus (pins may optionally be used for additional flat panel and flat panel monitor interfaces)
      • V-Link south bridge chip includes UltraDMA-133 / 100 / 66 / 33 EIDE, 6 USB 2.0 Ports, AC97 / MC97 link (for audio and modem support), LPC, SMBus, Power Management, and Keyboard / PS2 mouse interfaces plus RTC / CMOS on chip
      • 2.5 V Core and Mixed 3.3 V / 5 V Tolerant and GTL+I/O
      • 35 x 35 m HSBGA (Ball Grid Array with Heat Spreader) package with 552 balls
    • High Performance Athlon CPU Interface
      • Supports Socket A (Socket 462) AMD Athlon processors
      • HSTL-like 1.5 V high-speed transceiver logic signal levels
      • Support independent address, data, and snoop interfaces
      • 200 / 166 / 133 MHz DDR (Double Data Rate) transfer on Athlon CPU address and data buses
      • Built-in PLL (Phase Lock Loop) circuitry for optimal skew control within and between clocking regions
      • Four-entry command queue to accommodate maximum CPU throughput
      • Four-entry probe queue to stores probes from the system to the processor
      • Twenty four-entry processor system data and control queue to store system data control commands in two separate read and write buffers for data movement in and out of processor interface
      • Supports WC (Write Combining) cycles
      • Sleep mode support
      • System management interrupt, memory remap and STPCLK mechanism
    • High Bandwidth 533 MB / Sec 8-bit -Link Host Controller
      • Supports 66 MHz V-Link Host interface with total bandwidth of 533 MB/s
      • Operates in 2x, 4x, and 8x modes
      • Full duplex commands with separate command / strobe
      • Request / Data split transaction
      • Configurable outstanding transaction queue for Host to V-Link Client accesses
      • Supports Defer / Defer-Reply transactions
      • Transaction assurance for V-Link Host to Client access eliminates V-Link Host-Client Retry cycles
      • Intelligent V-Link transaction protocol to eliminate data wait-state / throttle transfer latency
      • All V-Link transactions for both Host and Client have a consistent view of transaction data depth and buffer size to avoid data overflow
      • Highly efficient V-Link arbitration with minimum overhead
      • All V-Link transactions have predictable cycle length with known command /data duration
    • Full Featured Accelerated Graphics Port (AGP) Controller
      • Supports 533 MHz 8x, 266 MHz 4x, and 133 MHz 2x transfer modes for AD and SBA signaling
      • AGP v3.0 compliant with 8x transfer mode
      • Pseudo-synchronous with the host CPU bus with optimal skew control
      • Supports SideBand Addressing (SBA) mode (non-multiplexed address / data)
      • AGP pipelined split-transaction long-burst transfers up to 1 GB/s
      • Eight level read request queue
      • Four level posted-write request queue
      • Thirty-two level (quadwords) read data FIFO (256 bytes)
      • Sixteen level (quadwords) write data FIFO (128 bytes)
      • Intelligent request reordering for maximum AGP bus utilization
      • Supports Flush / Fence commands
      • Graphics Address Relocation Table (GART)
      • One level TLB structure
      • Sixteen entry fully associative page table
      • LRU replacement scheme
      • Independent GART lookup control for host / AGP / PCI master accesses
      • Windows 95 OSR-2 VXD and integrated Windows 98 / Windows 2000 miniport driver support
    • Advanced System Power Management Support
      • Power down of SDRAM (CKE)
      • VTT suspend power plane preserves memory data
      • Suspend-to-DRAM and self-refresh power down
      • Low-leakage I/O pads
      • ACPI 1.0B and PCI Bus Power Management 1.1 compliant
    • Advanced High-Performance DDR DRAM Controller
      • Supports DDR333, DDR266, and DDR200 (PC2700, PC2100, and PC1600 DDR SDRAM)
      • DRAM interface synchronous with host CPU (200 / 166 / 133 MHz) for most flexible configuration
      • DRAM interface may be faster or slower than CPU by 33 MHz (pseudosynchronous with 166/133 MHz FSB clock)
      • Concurrent CPU, AGP, and V-Link access
      • Clock Enable (CKE) control for DRAM power reduction in high speed systems
      • Allows use of either registered or unbuffered memory modules
      • Supports 6 banks up to 3 GB DRAMs for registered modules (4 banks up to 2 GB for unbuffered modules) ?Mixed 1M / 2M / 4M / 8M / 16M / 32M / 64M /128M x 8 / 16 / 32 DRAMs
      • Flexible row and column addresses 64-bit data width only
      • 2.5 V SSTL-2 DRAM interface
      • Programmable I/O drive capability for MA, MD, and command signals
      • Two-bank interleaving for 16 Mbit DRAM support
      • Four bank interleaving for 64 MB, 128 MB, 256 MB, 512 MB, and 1GB DRAM support
      • Supports maximum 16-bank interleave (i.e. 16 pages open simultaneously); banks are allocated based on LRU
      • Seamless DRAM command scheduling for maximum DRAM bus utilization (e.g., precharge other banks while accessing the current bank)
      • Four cache lines (16 quadwords) of CPU to DRAM write buffers
      • Four cache lines of CPU to DRAM read prefetch buffers
      • Read around write capability for non-stalled CPU read
      • Speculative DRAM read before snoop result
      • Burst read and write operation
      • Burst length 4 and 8
      • Supports CL 2/2.5 and 1T per command
      • 1T and 2T command rate which can be specified bank by bank
      • Decoupled and burst DRAM refresh with staggered RAS timing (CAS before RAS or self refresh)
    • Integrated Graphics / Video Accelerator
      • Optimized Shared Memory Architecture (SMA)
      • 8 / 16 / 32 / 64 MB frame buffer using system memory
      • Internal AGP 8x performance
      • Separate 128-bit data paths between north bridge and graphics core for pixel data flow and texture / command access
      • Graphics engine clocks up to 133 MHz decoupled from memory clock
      • High quality DVD video playback
      • Internal hardware VGA controller with true-color / high-color sprite for hardware cursor implementation
      • 128-bit 2D graphics engine
      • 128-bit 3D graphics engine
      • Floating point triangle setup engine
      • 3M triangles/second setup engine
      • 133M pixels/second trilinear fill rate
    • Extensive Display Support
      • CRT display interface with 24-bit true-color RAMDAC up to 250 MHz pixel rate with gamma correction capability
      • Direct TFT flat panel interface up to 24-bit data width supporting 18, 24, 18 + 18 and 24 + 24 TFT panels or LVDS encoders
      • 12-bit DVI 1.0-compatible interface for drive of flat panel monitor using external TMDS encoders
      • Interface to external TV Encoder for NTSC or PAL TV display
      • Support for CRT resolutions up to 1920 x 1440 and panel resolutions up to 1600 x 1200
      • Automatic panel power sequencing and VESA DPMS CRT power-down
      • Dual view capability where CRT and Flat Panel Monitor can have a different resolution and refresh rate
      • Built-in reference voltage generator and monitor sense circuits
      • I 2 C SerialBus and DDC Monitor Communications for CRT Plug-and-Play configuration
    • Video Support
      • High quality scaler (up or down) for both horizontal and vertical scaling (linear interpolation for horizontal and vertical up-scaling and filtering for horizontal and vertical down-scaling)
      • Colour space conversion
      • Colour enhancement (contrast, hue, saturation, brightness and gamma correction)
      • Colour and chroma key support
      • Hardware sub-picture blending
      • Bob /weave de-interlacing ode and advanced de-interlacing to improve video quality
      • PAL /NTSC TV output capability using external TV encoder
    • MPEG-2/1 Video Decoder
      • Motion compensation for full speed DVD playback
    • 2D Hardware Acceleration Features
      • BitBLT (bit block transfer) functions
      • Text function
      • Bresenha line drawing /style line function
      • ROP 3, 256 operation
      • Color expansion
      • Source and destination color keys
      • Transparency mode
      • Window clipping
      • 8, 15 /16, and 32 BPP mode acceleration
    • 3D Hardware Acceleration Features
      • Microsoft DirectX 7.0 and 8.0 compatible
      • OpenGL driver available
      • Floating-point setup engine
      • Triangle rate up to 3 million triangles per second and Pixel rate up to 133 million pixels per second for 2 texture, depth test and alpha blending
      • Hardware back-face culling
      • 16-bit,32-bit Z test, and 24+8 Z+Stencil test support
      • Z-Bias support
      • Stipple Test, Line-Pattern test, Texture-Transparence test, Alpha test support
      • Edge anti-aliasing support
      • Two textures per pass
      • Tremendous Texture Format: 16 / 32 BPP ARGB, 1 / 2 / 4 / 8 BPP Luminance, 1 / 2 / 4 / 8 BPP Intensity, 1 / 2 / 4 / 8 BPP Palletized (ARGB), YUV 422 / 420 format
      • Texture sizes up to 2048 x 2048
      • High quality texture filter modes: Nearest, Linear, Bi-linear, Tri-linear, Anisotropic
      • LOD-Bias support
      • Vertex Fog and Fog Table
      • Specular Lighting
      • Alpha Blending
      • High quality dithering
      • ROP2 support
      • Internal full 32-bit ARGB format for high rendering quality
      • System balance to achieve high performance
  • VT8235 Chipset
      • 16-bit V-Link for high bandwidth north bridge data transfer
      • Dual channel serial ATA / raid controller
      • UltraDMA-133 / 100 / 66 / 33 master mode eide controller
      • Integrated fast ethernet and eight port USB 2.0
      • Direct sound AC97 audio, keyboard / mouse controller
      • RTC, LPC, SMBUS, serial IRQ, plug and play, ACPI
      • PC2001 compliant enhanced power management
    • High Bandwidth 533 MB/s 8-bit V-Link Client Controller
      • Supports 16-bit 66 MHz V-Link Client interface with total bandwidth of 1066 MB/s
      • V-Link operates in 2x, 4x, and 8x modes and either 16-bit or 8-bit (for backwards compatibility)
      • Full duplex commands with separate Strobe / Command
      • Request / Data split transaction
      • Configurable outstanding transaction queue for V-Link Client accesses
      • Auto Client Retry to eliminate V-Link Host-Client Retry cycles
      • Intelligent V-Link transaction protocol to eliminate data wait-state / throttle transfer latency; all V-Link transactions
      • for both Host and Client have a consistent view of transaction data depth and buffer size to avoid data overflow
      • Highly efficient V-Link arbitration with minimum overhead; all V-Link transactions have predictable cycle length
      • with known Command / Data duration
      • Auto connect / reconnect capability and dynamic stop for minimum power consumption
      • Parity checking to insure correct data transfers
    • Integrated Peripheral Controllers
      • Dual channel UltraDMA-133 / 100 / 66 / 33 master mode EIDE controller
      • Integrated Fast Ethernet Controller with 1 / 10 / 100 Mbit capability
      • Integrated USB 2.0 Controller with four root hubs and eight function ports
      • AC-link interface for AC-97 audio codec and modem codec
      • HSP modem support
      • Integrated DirectSound compatible digital audio controller
      • LPC interface for Low Pin Count interface to Super-I/O or ROM
    • Integrated Legacy Functions
      • Integrated Keyboard Controller with PS2 mouse support
      • Integrated DS12885-style Real Time Clock with extended 256 byte CMOS RAM and Day/Month Alarm for ACPI
      • Integrated DMA, timer, and interrupt controller
      • Serial IRQ for docking and non-docking applications
      • Fast reset and Gate A20 operation
    • UltraDMA-133 / 100 / 66 / 33 Master Mode EIDE (Parallel ATA) Controller
      • Dual channel master mode hard disk controller supporting four Enhanced IDE devices
      • Transfer rate up to 133MB/sec to cover PIO mode 4, multi-word DMA mode 2 drives, and UltraDMA-133 interface
      • Increased reliability using UltraDMA-133/100/66 transfer protocols
      • Thirty-two levels (double words) of prefetch and write buffers
      • Dual DMA engine for concurrent dual channel operation
      • Bus master programming interface for SFF-8038i rev.1.0 and Windows-95 compliant
      • Full scatter gather capability
      • Support ATAPI compliant devices including DVD devices
      • Support PCI native and ATA compatibility modes
      • Complete software driver support
    • Fast Ethernet Controller
      • High performance PCI master interface with scatter / gather and bursting capability
      • Standard MII interface to external PHYceiver
      • 1 / 10 / 100 MHz full and half duplex operation
      • Independent 2K byte FIFOs for receive and transmit
      • Flexible dynamically loadable EEPROM algorithm
      • Physical, Broadcast, and Multicast address filtering using hashing function
      • Magic packet and wake-on-address filtering
      • Software controllable power down
    • Universal Serial Bus Controller
      • USB v2.0 and Enhanced Host Controller Interface (EHCI) v1.0 compatible
      • USB v1.1 and Universal Host Controller Interface (UHCI) v1.1 compatible
      • Eighteen level (doublewords) data FIFO with full scatter and gather capability
      • Four root hubs and eight function ports
      • Integrated physical layer transceivers with optional over-current detection status on USB inputs
      • Legacy keyboard and PS/2 mouse support
    • Direct Sound Ready AC97 Digital Audio Controller
      • AC-Link access to 4 CODECs (AC97 + AMC97 + MC97)
      • Multichannel Audio
      • Bus Master Scatter / Gather DMA
      • Dedicated read and write channels supporting simultaneous stereo playback and record
      • Dedicated read and write channels supporting simultaneous modem receive and transmit
      • 1 stereo DirectSound channel with source / volume control / mixer
      • 1 shared FM / SPDIF PCM read channel
      • 1 dedicated channel supporting multi-channel audio
      • 32-byte line-buffers for each SGD channel
      • Programmable 8-bit / 16-bit mono / stereo PCM data format support
      • AC97 2.1 compliant
    • System Management Bus Interface
      • Host interface for processor communications
      • Slave interface for external SMBus masters
    • Concurrent PCI Bus Controller
      • 33 MHz operation
      • Supports up to six PCI masters
      • Peer concurrency
      • Concurrent multiple PCI master transactions; i.e. allow PCI masters from both PCI buses active at the same time
      • Zero wait state PCI master and slave burst transfer rate
      • PCI to system memory data streaming up to 132 MB/s (north bridge data transfer via high speed V-Link)
      • PCI master snoop ahead and snoop filtering
      • Eight DW of CPU to PCI posted write buffers
      • Byte merging in the write buffers to reduce the number of PCI cycles and to create further PCI bursting possibilities
      • Enhanced PCI command optimization (MRL, MRM, MWI, etc.)
      • Four lines of post write buffers from PCI masters to DRAM
      • Sixteen levels (double-words) of prefetch buffers from DRAM for access by PCI masters
      • Delay transaction from PCI master accessing DRAM
      • Transaction timer for fair arbitration between PCI masters (granularity of two PCI clocks)
      • Symmetric arbitration between Host/PCI bus for optimized system performance
      • Complete steerable PCI interrupts
      • PCI-2.2 compliant, 32 bit 3.3 V PCI interface with 5 V tolerant inputs
    • Sophisticated PC2001-Compatible Mobile Power Management
      • Supports both ACPI (Advanced Configuration and Power Interface) and legacy (APM) power management
      • ACPI v2.0 and APM v1.2 Compliant
      • CPU clock throttling and clock stop control for complete ACPI C0 to C3 state support
      • PCI bus clock run, Power Management Enable (PME) control, and PCI/CPU clock generator stop control
      • Supports multiple system suspend types: power-on suspends with flexible CPU/PCI bus reset options,
      • suspend to DRAM, and suspend to disk (soft-off), all with hardware automatic wake-up
      • Multiple suspend power plane controls and suspend status indicators
      • One idle timer, one peripheral timer and one general purpose timer, plus 24/32-bit ACPI compliant timer
      • Normal, doze, sleep, suspend and conserve modes
      • Global and local device power control
      • System event monitoring with two event classes
      • Primary and secondary interrupt differentiation for individual channels
      • Dedicated input pins for power and sleep buttons, external modem ring indicator, and notebook lid open/close for
      • system wake-up
      • 32 general purpose input ports and 32 output ports
      • Multiple internal and external SMI sources for flexible power management models
      • Enhanced integrated real time clock (RTC) with date alarm, month alarm, and century field
      • Thermal alarm on external temperature sensing circuit
      • I/O pad leakage control
    • Plug and Play Controller
      • PCI interrupts steerable to any interrupt channel
      • Steerable interrupts for integrated peripheral controllers: USB, floppy, serial, parallel, and audio
      • Microsoft Windows XP TM , Windows NT TM , Windows 2000 TM , Windows 98 TM and plug and play BIOS compliant
    • Built-in NAND-tree pin scan test capability
    • 0.22 um, 2.5 V, low power CMOS process
    • Single chip 27 x 27 mm, 1.0 mm ball pitch, 539 pin BGA
  • I/O controller: WINBOND W83697HF I/O Controller with the following features
    • PS/2 Keyboard and Mouse controller
    • Floppy disk controller supporting one FDD with 360 KB, 720 KB, 1.2 MB and 1.44 MB
    • 2 serial ports, both 16C550 Fast UART compatible.
    • 1 Parallel port supporting SPP (Standard parallel Port), EPP (Enhanced Parallel Port), and ECP (Extended Capabilities Port) modes
    • 1 Fan controller
  • Audio Chipset: Audio Subsystem for AC'97 processing using the Realtek ALC655 codec
    • DirectSound AC'97 2.2 Audio
    • Inputs and Outputs: Stereo inputs for Line-in, CD audio, Auxiliary, mono inputs for microphone
    • Mixer Features: mixer with stereo for Line, CD audio, auxiliary, music synthesizer, digital audio (wave files), and mono for microphone and speaker phone
    • Features: 3D stereo enhancement for simulated surround, power management support
    • Stereo microphone input with integrated preamp for enabling a 2-channel mic array
    Connectors
    • 1 AGP slot with integrated retention mechanism
    • 2 PCI +1 Combo PCI/CNR slot
    • 1 DB9 serial port (COM A )
    • 1 Header serial port (COM B )
    • 1 DB15 VGA port
    • 1 DB25 parallel port with SPP, ECP, EPP bidirectional modes
    • PS/2 keyboard and PS/2 mouse ports (not swappable)
    • 6 USB 2.0; 2 rear ports + 2 front USB + 2 interne
    • 1 mono microphone input (Mic-In)
    • 1 Line-In
    • 1 Line-Out
    • 2 IDE connectors
    • 1 Floppy connector
    • Panel connector
    • 1 RJ45 connector
    Winbond BIOS Specifications
    • Plug and Play
    • Advanced Configuration and Power Interface (ACPI) 1.0
    • Advanced Power Management (APM) 1.2
    • Y2K
    • PC 2001
    • S3/S1 mode
    • Desktop Management Interface (DMI)
    • 2 Mbits flash device
    • Language supported: English
    • POST
    Compliance
    Specification Description
    Full ATX Full ATX form factor specifications
    AGP 2.0 / 3.0 Accelerated Graphics Port 2.0 (4x/2x) and 3.0 (8x)
    APM Advanced Power Management BIOS interface specification
    ACPI Advanced Configuration and Power management Interface
    EPP Enhanced Parallel Port IEEE 1284 standard, Mode [1 or 2]
    ECP Extended Capabilities Port
    ATA-33 Synchronous DMA Transfer Protocol specification (to be proposed as Ultra DMA/33 standard )
    PCI 2.2 PCI Local Bus specification
    Plug and Play Plug and Play BIOS specification
    USB Universal Serial Bus specification
    ATA-66/100/133 Synchronous DMA Transfer Protocol specification
    Motherboard Configuration
    The Quasar2 motherboard has four jumper settings
    • Front Panel audio connector JAUD1 (not used)
    • Bios Recovery function/ Safe mode JRC1
    • CLEAR CMOS JBAT1
    • FSB (SW1&SW2)
    JAUD1: Front Panel Audio Header Signal Names
    Pin Signal Name Description
    1 AUD_MIC Front Panel Microphone input signal
    2 AUD_GND Ground used by Analog Audio Circuits
    3 AUD_MIC_BIAS Microphone Power
    4 AUD_VCC Filtered +5 V used by Analog Audio Circuits
    5 AUD_FPOUT_R Right Channel Audio signal to Front Panel
    6 AUD_RET_R Right Channel Audio signal Return from Front Panel
    7 HP_ON Not connected
    8 KEY No Pin
    9 AUD_FPOUT_L Left Channel Audio signal to Front Panel
    10 AUD_RET_L Left Channel Audio signal Return from Front Panel

    JRC1 Safe Mode/Recovery/Normal selection jumper
    1-2 Normal
    2-3 Safe mode
    open Recovery

    JBAT1: Clear Cmos Configuration
    Normal 1-2
    Clear Cmos 2-3
    FSB: SW1 SW2
    100 2-3 2-3
    133 2-3 1-2
    166 1-2 1-2
    200 1-2 2-3
    Internal Connectors
    Denomination on image Name Type
    CONN1 Power Connector 20-pin Keyed Connector
    JPW1 Aux Power Connector 4-pin Keyed Connector
    SYSFA1 System fan connector 3-pin header
    FDD1 Floppy Drive connector 34 (2 x 17) pin Shrouded Header
    IDE 1 Primary IDE connector 40 (2 x 20) pin header (blue)
    IDE 2 Secondary IDE connector 40 (2 x 20) pin header (white)
    PCI 1, 2 and 3 PCI connectors standard PCI expansion slots
    AGP1 Accelerated Graphics Port standard AGP connector
    CPU CPU connector 462-Pin socket
    CPU FAN CPU Fan connector 3-pin header
    DIMM 1 and 2 DIMM sockets 184-pin standard sockets
    JUSB2, JUSB3 USB connector 2 x 5 pin header (-1 key, yellow)
    JCD1 CD-ROM Audio Line In 4-pin header (black)
    JPHN1 Modem In 4-pin header (green)
    JSP1 SPDIF 3-pin header (black)
    JAUD1 Connecting to front audio 10-pin jumper
    JCOM1 Serial port connector 2 x 5 pin header (black)
    BAT1 CMOS battery socket  
    JFP1 Front panel Connector 2 x 5 pin header (-1 key)
    Back panel connectors
    Name Function Type
    A PS/2 Mouse port 6-Pin Mini-DIN
    B PS/2 Keyboard port 6-Pin Mini-DIN
    I USB port 1  
    J USB port 2  
    F Serial port 1 9-pin SUB D
    G VGA port 15-pin SUB D
    E Parallel port 25-pin SUB D
    K Audio Line In jack socket
    L Audio Line Out jack socket
    M Mono Microphone in jack socket
    H RJ45 LAN  

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