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Features - ECS P4S5A Manual

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The PGA Socket 478
Processor
Supports Intel Pentium 4 series CPUs
Supports up to 400/533 MHz Frontside Bus
Note: SiS 645DX Northbridge supports up to 533MHz
Chipset
The SiS 645/SiS 645DX and SiS961 chipsets are based on an
innovative and scalable architecture with proven reliability and
performance. A few of the chipset's advanced features are:
A low 2.5-volt DDR SDRAM power consumption which
makes it an excellent solution for notebooks and desktops
with a small footprint
Support for a 4xAGP interface providing vivid 3D graphics
and video performance
An ATA 100 interface on the chipset, which helps boost
system performance by providing a high-speed connec-
tion to ATA 100 Hard Disk Drives, delivering maximum
sustained data transfer rates of 100 MB/sec
Built-in multithreaded I/O link used to enhance perform-
ance, providing enough I/O bandwidth for throughput up
to 1.2 GB/s
Additional key features include support for six USB ports, an
AC 97 link for audio and modem, hardware monitoring, and
ACPI/OnNow power management.
This mainboard may support either one of the three
Southbridge chipset. Refer below for details:
SiS961A Southbridge – supports up to 400/533MHz and
Ultra DMA ATA 100 interface.
SiS961B Southbridge – supports up to 400/533MHz and
Ultra DMA ATA 133 interface.
SiS962 Southbridge – supports up to 533MHz, Ultra
DMA ATA133 interface and IEEE 1394 controller.
Two 168-pin DIMM slots for SDRAM memory modules
Memory
Two 184-pin DIMM slots for DDR memory modules
Support SDRAM up to 133 MHz /DDR up to 333 MHz
memory bus
Maximum installed memory is 2GB
Note: You cannot use SDRAM and DDR simultane-
One AMR slot for a special audio/modem riser card
Expansion Slots
One 4xAGP slot for AGP 2.0-compliant interface
Five 32-bit PCI slots for PCI 2.2-compliant bus interface
Primary and Secondary PCI IDE channels
Onboard IDE
Support for PIO (programmable input/output) modes
channels
Support for Multiword DMA modes
Support for Bus Mastering and Ultra DMA ATA 100/133
modes
ATX power supply connector
Power
Meets ACPI 1.0b and APM 1.2 requirements, keyboard
Supply and
power on/off
Power
Frontside bus.
ously.
2

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