Viglen Vig565s Manual page 15

V – Front panel USB connectors
This allows an additional 2 USB ports to be added with the use of a cable.
W – Battery
The battery keeps the CMOS memory when the system isn't turned on.
X – ITE 8211 controller (not fitted)
This is an optional feature which is not offered by Viglen.
Z – Intel® 82915G Graphics Memory / Controller Hub (GMCH)
The Intel® 915G graphics memory controller hub (GMCH) and the ICH6 I/O
controller hub provide the vital interfaces for the motherboard. The GMCH features
the Intel® Graphics Media Accelerator 900, an integrated graphics engine for
enhanced 3D, 2D, and video capabilities. The GMCH provides the interface for a
processor in the 775-land package with 533/800 MHz front side bus (FSB), dual
channel DDR at speeds of up to 400 MHz, and PCI Express x16 interface for a
graphics card.
AA – PCI Express x1 bus add-in card
Allows a PCI Express x1 device to be fitted to the motherboard. E.g. Fire wire card
BB – SPIDIF_OUT (not supported)
This is an optional feature which is not offered by Viglen.
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Vig565s Motherboard Manual