Special Features Of The System Board - DFI G5G330-P User Manual

1
Introduction
Expansion Slots
• 1 PCI Express x16 slot
• 1 PCI Express x1 slot
• 2 PCI slots
Compatibility
• PCI 2.2 and AC '97 compliant
PCB
• 6 layers, microATX form factor
• 24.4cm (9.6") x 24.4cm (9.6")

Special Features of the System Board

Watchdog Timer
The Watchdog Timer function allows your application to regularly
"clear" the system at the set time interval. If the system hangs or
fails to function, it will reset at the set time interval so that your
system will continue to operate.
PCI Express
PCI Express is a high bandwidth I/O infrastructure that possesses
the ability to scale speeds by forming multiple lanes. The system
board currently supports the physical layer of x1 and x16 lane
widths.
The x1 PCI Express lane supports transfer rate of 2.5 Gigabytes
(250MBbps) per second. The PCI Express architecture also provides
a high performance graphics infrastructure by enhancing the capability
of a x16 PCI Express lane to provide 4 Gigabytes per second
transfer rate.
DDR
Double Data Rate SDRAM (DDR SDRAM) is a type of SDRAM
that doubles the data rate through reading and writing at both the
rising and falling edge of each clock. This effectively doubles the
speed of operation therefore doubling the speed of data transfer.
11