1
Introducing the Motherboard
Chapter 1
Introducing the Motherboard
Introduction
Thank you for choosing the PT880PRO-A motherboard. This motherboard is a high
performance, enhanced function motherboard that supports LGA775 Pentium 4/Celeron
processors for high-end business or personal desktop markets.
The motherboard incorporates the PT880Pro Northbridge (NB) and VT8237 Southbridge
(SB) chipsets. The Northbridge supports a Front Side Bus (FSB) frequency of 800/533 MHz
FSB and Hyper-Threading technology. The momory controller supports DDR memory
DIMM frequencies of 400/333/266 MHz or DDR2 memory DIMM frequencies of 533/400
MHz. It supports four DDR Sockets with up to maximum memory of 2 GB. DDR Maximum
memory bandwidth of 3.2 GB/s in single-channel is supported, or 8.5 GB/s in dual-channel
interleaved mode assuming DDR2 533 MHz. Aside from the onboard AGP slot, one PCI
Express Lite slot, intended for Graphics Interface, is fully compliant to the PCI Express
Base Specification revision 1.0a.
The VT8237 Southbridge is a highly integrated peripheral controller, it includes an inte-
grated keyboard controller with PS2 mouse support, two-channel Serial ATA/RAID hard
disk controller, master mode enhanced Parallel IDE controller with full scatter/gather
capability and extension to UltraDMA-133/100/66 for 133/100/66 MB/sec transfer rate,
integrated USB 2.0 interface, supporting up to eight functional ports, and OnNow/ACPI
compliant advanced configuration and power management interface. The VT8237 inte-
grated networking MAC controller with standard MII interface to an external PHY for 100/
10/1Mb Base-T Ethernet.
The PT880PRO-A motherboard is equipped with advanced full set of I/O ports in the rear
panel, including PS/2 mouse and keyboard connectors, COM1, LPT1, four USB ports, one
optional LAN port, and audio jacks for microphone, line-in and line out.
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