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Important Note: The Atlantis motherboard is almost equal to the Atlantis P motherboard. The difference lies in the chipsets. The Atlantis motherboard has the Intel« 815E Chipset, featuring integrated video using Dynamic Video Memory Technology (DVMT) as well as an AGP slot for add-on AGP 4x video cards. The Atlantis P motherboard has the Intel« 815EP chipset. The added P means that the chipset has no integrated video like the 815E chipset, only an AGP port for add-on AGP 4x video cards. You will not be able to see the difference between the motherboards from the connectors on the back. As they have identical lay-outs you will find a video connector on both motherboards. The video connector on the Atlantis motherboard can be used to connect the monitor, but the video connector on the Atlantis P is not functional and will be covered in production with a small plastic cap. Another difference is a label on the motherboard: The code C-NF specifies the Atlantis P motherboard and the code NF the Atlantis motherboard (see image).

Table of Contents

• Specifications
  • Form Factor
  • CPU Support
  • System Memory
  • Core Logic (Chipset)
    • 82815 MCH features
    • 82801BA ICH2 features
  • I/O Controller
  • Sound sub-system
  • LAN Wake-Up
  • Modem Wake-Up
• BIOS Specifications
• Compliance

Specifications

Form Factor

• Flex-ATX 22.8 x 19.0 cm Form Factor

CPU Support

• Socket 370
• Supports Intel Celeron FC-PGA (Flip-Chip-pin Grid Array).
  • 533/66 to 766/66 MHz
  • 800/100 MHz, 850/100 MHz & 900/100 MHz
• Supports Intel PIII Coppermine FC-PGA (Flip-Chip-pin Grid Array)
  • 600/100 to 850/100 MHz
  • 800/133 to 1133/133 MHz
• Supports Intel PIII Tualatin FC-PGA II
  • 1133/133 to 1266/133 MHz
• Supports 32-bit AGTL or AGTL+ bus addressing (no support for 36-bit address extension)
• 66/100/133 MHz host bus speed processors are supported.

System Memory

• Supports 2 memory banks using two 168-pin unbuffered DIMM.
• Supports up to 2 double-sided DIMMs at a clock speed of 100 MHz.
• Supports up to 2 double-sided or 2 single-sided DIMMs at a clock speed of 133 MHz.
• Supports a maximum memory size of 512 MB (128-bit technology) or 256 MB (64-bit technology) for SDRAM.
• Supports only 3.3 V SDRAM DIMMs with gold-plated contacts.
• ECC memory checking is not supported

Core Logic (Chipset)

The Intel 815E chipset consists of the 82815 Memory Controller Hub (MCH) and the 82801AB I/O Controller Hub (ICH2).

• The 82815 MCH features:
  • Processor Host/Bus support (66/100/133 MHz System Bus frequency, 32-bit system bus addressing, AGTL+ I/O buffer).
  • Integrated SDRAM controller.
  • Arbitration scheme and concurrency.
  • Data buffering.
  • No integrated graphics controller.
  • Power management functions (ACPI compliant, APIC buffer management, SMI, SCI and SERR error indication).
• The 82801BA ICH2 features:
  • PCI rev 2.2 specification support
    • Supports PCI bus at 33 MHz
    • Supports up to 6 master devices on PCI
    • 133 MB/sec maximum throughput
  • Integrated LAN controller
    • Wired for Management (WfM) compliant.
    • 10/100 Mbit/sec Ethernet support.
  • Integrated IDE controller supporting PIO Mode 4 transfers at up to 14 MB/s, Ultra ATA/33 mode transfers at up to 33 MB/s, and Ultra ATA/66 mode transfers up to 66 MB/s and Ultra ATA/100 mode transfers at up to 100 MB/s. It supports the independent timing of up to 4 IDE devices.
  • Two USB controllers, supporting wake-up from sleeping states S1-S4, and legacy mouse/keyboard software.
    Note about the USB features: There is support for 4 USB ports on the motherboard, all of which are active at the same time (so there is no need for a USB selection jumper). Two of the USB ports are on the back panel, and the on-board FUSB header can be connected to two USB ports.
  • AC'97 link for audio and telephony CODECs (AC'97 2.1 compliant)
    • Independent bus master logic for 5 channels (PCM In/Out, Mic Input, Modem In/Out).
      Note: PCM is short for Pulse Code Modulation.
    • Separate independent PCI functions for audio and modem.
    • Support for up to 6 channels of PCM audio (full AC3 decode).
    • Supports wake-up events.
  • Interrupt controller based on two 82C59
  • Power management logic
    • ACPI 1.0 compliant.
    • ACPI defined power states (C1-C2, S3, S4, S5).
    • ACPI power management timer.
    • System Management Interface (SMI) generation.
  • Enhanced Direct Memory Access (DMA) controller.
  • 256-byte battery-backed CMOS SRAM Real Time Clock (3 V lithium battery - CR2032).

I/O controller

ITE IT8712F-A I/O Controller with the following features:

• PS/2 Keyboard and Mouse controller.
• Floppy disk controller supporting up to two 360 KB, 720 KB, 1.2 MB, 1.44 MB or 2.88 MB FDDs.
• 1 serial port (COM A) + 1 serial connector (COM B), both 16C550 UART compatible.
• 1 Parallel port supporting SPP (Standard Parallel Port), EPP (Enhanced Parallel Port), and ECP (Extended Capabilities Port) modes.
• 1 MIDI (MPU-401 URT compatible)/game port.
• Hardware Monitoring
  • Fan speed monitoring and control
  • Built-in case open detection circuit
  • Watchdog comparison of all monitored values
• PC98/99, ACPI and LANDesk compliant.

Sound sub-system

• Integrated on the SIGMATEL Technologies? Sigmatel STAC9756T-audio codec
• DirectSound AC'97 2.1 Audio
• Inputs and Outputs: Stereo inputs for line-in, CD audio, mono inputs for microphone and TAD, MPU-401 (UART mode) interface for wavetable synthesisers and MIDI devices.
• Integrated game port.
• Mixer Features: Mixer with stereo for line, CD audio, auxiliary, music synthesiser, digital audio (wave files), and mono for microphone and speakerphone.
• Features: 3D stereo enhancement for simulated surround, power management support.
• SPDIF output for PCM & AC3 sound formats.
  

LAN Wake-Up

• With add-on LAN card Internal
  

Modem Wake-Up

• With add-on modem (PCI or CNR slot)

BIOS Specifications

• AMI BIOS with Plug and Play, Advanced Configuration and Power Interface, Advanced Power Management, Y2K, PC 98, and Desktop Management Interface support.
• 4 Mbits flash device.
• Language support: English.
• POST

Compliance

Specification	Description
Flex-ATX	Flex-ATX form factor specifications
AGP 2.0	Accelerated Graphics Port
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 ATA-66 ATA-100	Synchronous DMA Transfer Protocol specification
PCI 2.2	PCI Local Bus specification
Plug and Play	Plug and Play BIOS specification
USB	Universal Serial Bus specification