1
Introducing the Motherboard
Chapter 1
Introducing the Motherboard
Introduction
Thank you for choosing the P33T-A motherboard. This motherboard is a high
performance, enhanced function motherboard designed to support the LGA775 socket
Intel
®
Yorkfield/Wolfdale/Core
TM
2 Quad/Core
TM
2 Duo/Pentium
®
Dual-Core/
Celeron
®
4xx processors for high-end business or personal desktop markets.
The motherboard incorporates the G31/P31 Northbridge (NB) and ICH7 Southbridge
(SB) chipsets. The Northbridge supports a Front Side Bus (FSB) frequency of 1333/
1066/800 MHz using a scalable FSB Vcc_CPU. The memory controller supports
DDR2 memory DIMM frequencies of 800/667. It supports two DDR2 Sockets with
up to maximum memory of 4 GB. DDR2 Maximum memory bandwidth of 12.8 GB/
s in dual-channel symmetric mode assuming DDR2 800 MHz. High resolution graph-
ics via one PCI Express slot, intended for Graphics Interface, are fully compliant to
the PCI Express Base Specification revision 1.1.
The ICH7 Southbridge supports three PCI slots which are PCI 2.3 compliant. In
addition, two PCI Express x1 slot are supported, fully compliant to the PCI Express
Base Specification, Revision 1.0a. It implements an EHCI compliant interface that
provides 480 Mb/s bandwidth for eight USB 2.0 ports (four USB ports and 2 USB 2.0
headers support additional four USB ports). One onboard IDE connector supports 2
IDE devices in Ultra
ATA 100/66/33 mode. The Southbridge integrates a Serial ATA
host controller, supporting four SATA ports with maximum transfer rate up to 3.0
Gb/s each.
The motherboard is equipped with advanced full set of I/O ports in the rear panel,
including PS/2 mouse and keyboard connectors, COM1, one optional VGA1 port,
four USB ports, one LAN port, and audio jacks for microphone, line-in and 6/8-
channel (optional) line-out.
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