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Chapter 1: Introduction
1.1 Congratulations!
You are now the owner of the Tyan Trinity i845 motherboard, the most reliable, high performance
motherboard for Pentium 4 processing. The Trinity i845 supports the latest Pentium 4 processors
as well as all the latest peripherals. It's a high performance board targeted mainly at enthusiasts,
power users and workstations. The Trinity i845 also provides the easiest upgrade path for existing
PC users who don't want the hassle of purchasing a new chassis and power supply. Use an
existing ATX power supply and the Trinity i845 will support it out of the box. *Please see Tyan's
website for updates and information concerning CPU information and support:
The Trinity i845 leaves plenty of room for upgrades but also includes all the necessary
components to get you started. Built into the Trinity i845 is a 100Mbit Ethernet solution provided
by Intel for quick network setups and blazing fast transfer speeds.
All six PCI slots are free and open for upgrades. Adding to the ease of expansion and support is
the use of current industry standard PC133 SDRAM. Boasting high speeds at low costs, the
Trinity i845 is the ideal platform for the Pentium 4.
Remember to visit Tyan's Website at http://www.tyan.com. There you can find information on all of
Tyan's products with FAQs, distributors list and BIOS setting explainations.
1.2 Hardware Specifications
Processor
Single PGA478 ZIF sockets
Supports one Intel Pentium 4 (478pin)
processor
SDR bus support for 133MHz
Integrated VRM
Auto configure Clock Multiplier
Auto detect CPU core voltage
Chipset
Intel i845 (Brookdale) Chipset
Intel ICH 2
Onboard 82562ET 10/100Mbit LAN (future
option)
LPC I/O Winbond with hardware monitoring
built in.
Memory
Three 3.3v 168-pin DIMM sockets
Supports up to 3GB of
unregistered/unbuffered PC133 SDRAM
Expansion Slots
1 AGP (1.5v, 4x)
6 32-bit/33MHz PCI bus mastered slots
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Hardware Monitoring
Winbond W83782D hardware monitoring
ASIC
CPU Temp, voltage and fan monitoring
BIOS
Award 4Mb BIOS Flash ROM (FWH)
Fully Plug-and-Play
APM 1.2/ACPI 1.0/PC99 compliant
DMI 2.0 compliant
Soft Power Down
Multiple boot options
Instant PC (Suspend to RAM support)
3-pin wake on LAN header (requires ATX
standby 5v/750mA power supply)
2-pin chassis intrusion header.
Form Factor
ATX footprint (12" x 9.6")
ATX 2.1 with 30A on 5v line Power supply
required
One 20-pin ATX power connector
Stacked USB (two) ports
Stacked keyboard and mouse ports
5
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