Memory
The mainboard supports DDR 266/333 SDRAM. It accommo-
dates two unbuffered 2.5V 184-pin slots. Each slot supports up
to 1 GB with a total maximum capacity of 2 GB.
USB
The USB 2.0 Controller is compliant with Universal Serial Bus
Specification Revision 2.0.
The USB 2.0 supports data transfer rates up to 480MB/sec for
high-speed devices and specifies a microframe that will be
1/8
th
of a 1msec frame. This allows the USB 2.0 devices to
have small buffers even at high data rates.
The USB 1.1 connectors and other full speed cables can sup-
port the higher speed of USB 2.0 without any changes.
The chipset has the following advanced USB features:
•
Compliant with Enhanced Host Controller Interface
(EHCI) Specification Revision 0.95 and Universal Host
Controller Interface (UHCI) Specification Revision 1.1
•
PCI multi-function device consists of two UHCI Host Control-
lers for full/low-speed signaling and one EHCI Host
Controller core for high-speed signaling
•
Supports PCI-Bus Power Management Interface Specifi-
cation release 1.1
•
Legacy support for all downstream facing ports
Graphics
The mainboard includes an AGP 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 that meets the PC2001 requirements and supports
S/PDIF In/Out. It also has a built-in buffer and internal PLL.
Features include support for analog switch for rear-out (share),
the line-in jack (share), center/bass (share), and MIC jack to
output 6 channels audio.
Note:
Optional 4-channel audio controller.
Onboard LAN
(optional)
The Realtek RTL8100B LAN chip is incorporated in the chipset
providing the mainboard with integrated Ethernet PCI LAN
capabilities.
Expansion
Options
The mainboard comes with the following expansion options:
•
Three 32-bit PCI slots
•
One AGP slot
•
A Communications and Network Riser (CNR) slot (AC97
interface only)
•
Two IDE channels and a floppy disk drive interface
The mainboard supports Ultra DMA bus mastering with trans-
fer rates of 33/66/100/133 MB/sec.
IEEE 1394A Con-
troller Interface
(optional)
•
Fully support provisions of IEEE1394-1995 for High- Per-
formance Serial Bus and the P1394a draft 2.0 standard
•
Provides one compliant cable port at 100Mbits/s,
200Mbits/s, and 400Mbits/s
•
Supports arbitrated short bus reset to improve utilization
of the bus
•
Data interface to link-layer controller provided through
2/4/8 parallel lines at 50Mbits/s
3