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Processor
The L4S5M2 mainboard uses a micro PGA 478-pin socket that
has the following features:
•
Supports 400 MHz system bus (FSB)
•
Accommodates Pentium 4 processors
Chipset
The SiS645 and SiS961 chipsets are based on an innovative
and scalable architecture with proven reliability and perform-
ance. A few of the chipset’s advanced features are:
•
A low 3.3-volt SDR 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.
Memory
The mainboard accommodates SDRAM up to 2 GB using two
168-pin, 3.3V unbuffered DIMM modules.
VGA
The L4S5M2 includes a 4xAGP slot that provides four times
the bandwidth of the original AGP specification. AGP technol-
ogy provides a direct connection between the graphics sub-
system and the processor so that the graphics do not have to
compete for processor time with other devices on the PCI bus.
AC 97 Audio
Codec
The AC 97 Audio codec is compliant with the AC 97 2.2 speci-
fication, and supports 18-bit ADC (Analog Digital Converter)
and DAC (Digital Analog Converter) resolution as well as 18-bit
stereo full-duplex codec with independent and variable sam-
pling rates. Further features include support for four analog
line-level stereo inputs.
Expansion
Options
The mainboard comes with the following expansion options:
•
Three 32-bit PCI slots
•
One 4xAGP slot
•
A Communications Network Riser (CNR) slot (AC97 inter-
face only)
•
Two IDE connectors which support four IDE channels and
a floppy disk drive interface
The L4S5M2 supports Ultra DMA bus mastering with transfer
rates of 33/66/100 MB/sec.