Tyan Tomahawk A+ is a quality, high performance single processor system platform based on the powerful Intel PPGA-370 Celeron microprocessors. This mainboard is designed around the latest and fastest Intel 440BX AGPset as well as VIA's Apollo Pro Plus AGPset. Please refer to the Motherboard CPU Compatibility Chart for more specs.

The Tomahawk A+ supports SPD SDRAM memory and ECC SDRAM. The S1856's PCI Local Bus and new 32-bit AGP bus provides high performance capabilities that are ideal for a wide range of demanding applications such as: CAD, CAM, CAE, real-time 3D, and simulations.

This integrated system board achieves the highest reliability and is based on a double row ATX form factor. Some of the features included are: on-board dual channel PCI IDE, on-board floppy controller, on-board high speed I/O, Universal Serial Bus, on-board PS/2 mouse connector, on-board wavetable sound (optional), and on-board system mangement (optional).

Flexibility and expandibility have been designed into the Tomahawk A+. With I/O and drive controller support built on-board, the Tomahawk A+ allows many upgrade paths not found on other boards.. With three 168-pin DIMM sockets, the board can provide a very flexible memory configuration of up to 768MB SPD SDRAM or SDRAM+ECC in addition to the new 100 MHz SDRAMs.

Standard Features

Processor

Celeron 300-466 MHz CPU

One Socket 370 connector

Up to 100 MHz bus support

One rev 8.4 VRM on-board

Two on-board CPU/case fan headers

Chipset

VIA Apollo Pro Plus AGPset

Winbond `977 Super I/O chipset

System Memory

Up to 768MB SDRAM Memory Support

Synchronous DRAM W/SPD

SDRAM + ECC

Three 168-pin DIMM Sockets

100 MHz SDRAM support [ Compatiblity List ]

Expansion Slots

Five 32-bit PCI Bus Mastering Slots

Two 16-bit ISA Slots

One 32-bit AGP Slot

One Shared PCI/ISA Slot (7 usable slots)

Disk Drive & System I/O

UltraDMA/33 (UIDE) built-in (up to 33MB/s DTR)

Two PCI Bus Mastering EIDE channels

Supports EIDE CD-ROMs

Bus-Mastering Mode (Up to 22MB/s DTR)

PIO Mode 3 & 4 (Up to 17MB/s DTR)

Two Floppy Drive Support (Up to 2.88MB)

Two ATX Serial Ports (16550 UARTs)

One ATX ECP/EPP Parallel Port

Two ATX USB Rev 1.2 Ports

One IR (InfraRed) I/O Interface Port

One ATX PS/2 Mouse Port

One ATX PS/2 Keyboard Port

Integrated Audio

Ensoniq 1371 PCI Wavetable audio chip

AC97 codec / One ATX Game port

ATX Line in, MIC, and speaker ports

System Management (optional)

ADM9240 sensor chips with on-board alarm for heat, fan and voltage. Reports to the operating system for system monitoring.

Tyan Desktop Client Mgr software included

Chassis Intrusion Detection capable

Voltage and Power

ATX Power Supply Connector

+12V Power Source for DC-FAN on-board

3.3V DRAM Support

Utilizes GTL+ Bus, Reducing Power Consumption and EMI

Power recovery after interrupt feature

Wake-on-LAN Feature Header (3-pin) ***

BIOS

Award Plug 'n' Play flash BIOS Standard

Deep Green / Energy Star / PC98 ready

Yellow LED for Sleep mode

Year 2000 compliant

Form Factor

ATX Design (8.3" x 12.0")

Double Row ATX Connectors

Type "C" I/O Shield (Intel Caveman Compatible)

Warranty

3 Year Manufacturer's Warranty

Specifications may change without notice