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Trinity 400 (S1854)  Datasheet  Manual  Jumpers
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 • Slot 1 (SECC/SECC-2) and PGA370 ZIF socket
 • Supports Intel® Pentium® III, Intel® II
** or Intel®
    Celeron processors; onboard VRM (VRM 8.4 spec)
 • Front-Side Bus support for 133/100/66MHz

** Does not support older Slot 1 Pentium II's with 2.8V core voltage, does not support cooling fan included with Socket 370 boxed Intel processors.

VIA Apollo Pro 133A
 • VT82C694X & VT82C596B
 • Winbond W83977EF Super I/O controller

 • Three 3.3V unbuffered 168-pin DIMM Sockets
 • PC133/PC100 compliant SDRAM support
 • Supports up to 768MB PC100/133

Expansion Slots
 • Six 32-bit PCI 2.1 Bus Mastering Slots
 • One 2x/4x AGP 2.0 Slot
 • Total of seven usable slots
 • One 16-bit ISA slot (optional)
 • All slots support full length add-on cards

Integrated I/O
 • One floppy connector supports up to two drives
    (1.44MB, 2.88MB, mode-3)
 • Two 9-pin 16550 UART serial ports
 • One 25-pin ECP/EPP/SPP parallel header
 • Two USB ports; PS/2 keyboard and mouse ports

Integrated PCI IDE
 • Two 40-pin IDE connectors for up to 4 drives
 • PIO Mode 3/4, UltraDMA 33/66 supported
 • ATAPI IDE CD-ROM and LS-120 supported

System Management
 • 3-pin Wake on LAN header
 • 3-pin Wake on Ring header ***

*** Requires ATX 2.01 Compliant Power Supply

Integrated Audio (option)
 • Creative Labs ES1373 PCI chip
 • AC97 codec rev 2.1
 • One MIDI / Game port
 • Line in, MIC-in and Line-out ports
 • 4-pin CD-ROM audio (ATAPI) header
 • 4-pin Telephony (ATAPI) header

 • Award BIOS on 2Mbit Flash EEPROM
 • Plug and Play; IDE drive auto configure
 • APM 1.2 / ACPI 1.0 / PC99 compliant
 • Soft power-down; multiple boot options
 • DMI 2.0 compliant

Form Factor
 • ATX footprint (12"x8.3"); 4-layer board
 • 20-pin ATX power connector
 • Stacked ATX I/O Connectors
Type "C" I/O Shield (Intel Caymen Compatible)

Package List
 • Trinity 400 motherboard / User's manual
 • 40-pin IDE & 34-pin floppy cable pack
 • 80-pin ATA-66 IDE cable
 • Driver CD
 • URM Retention Module
    (URM is mounted on the motherboard)

FCC Class B (Declaration of Conformity)
 • European Community

Note: This board conforms to the new PCI 2.2 spec. This requires 3.3v standby for all PCI slots, DIMM banks, and PS/2 outputs (KB/PS/2 Mouse). Always remember to unplug the AC power cord before adding any PCI cards, memory, or plugging or unplugging keyboard or mouse. Otherwise the motherboard may automatically power up when adding the component.

Information published on is subject to change without notice.
Copyright © 2006, Tyan Computer Corporation. All Rights Reserved.