Chapter 1 Introduction; Specification - Shuttle HOT-681 User Manual

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INTRODUCTION
The HOT-681 Mainboard is carefully designed for the demanding PC user who wants high perfor-
mance and many intelligent features in a compact package:
Intel Chipset:
Features Intel's 440BX AGPset with I/O subsystems.
CPU Support:
Intel PPGA Celeron processor 300/66, 333/66, 366/66, 400/66 and 350/100, 400/100, 450/100 ,
500/100 MHz.
Versatile Memory Supports:
Supports three banks of normal or PC/100 SDRAM
Configurable support for ECC (Error Checking and Correcting)
PCI and ISA Expansion Slots:
Provides four 32-bit PCI slots and three 16-bit ISA slot.
Onboard I/O:
Provides one Floppy port; one PS/2 mouse and one PS/2 Keyboard port connector; two high-speed
UART compatible serial ports and one parallel port with ECP and EPP capabilities. Serial Port 2
can also be directed from COM2 to the Infrared Module for wireless connections.
Onboard PCI Bus Master IDE Controller:
Two Ultra DMA/33 Bus Master IDE
fers and supports Enhanced PIO Modes 3 and 4 and Bus Master IDE DMA Mode 2 devices.
Onboard 20-pin ATX Power Supply:
Provides ATX power connector onboard supports soft-on/off function.
System BIOS:
Provides licensed Award V4.51PG BIOS on Flash EEPROM.
Supports Green PC, DMI and Bundled with NCR SCSI BIOS.
ACPI:
Support ACPI (Advanced Configuration and Power Interface)
Energy Saving Features for the future operating system supporting OS Direct Power Management
(OSPM) functionality.
maximum memory size up to 768MB.
Ports supports four IDE devices up to 33 MB/sec IDE trans-
function. ACPI provide more
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