P6LX2-A User’s Manual
2:
Using Your Mainboard – 2.9
CMOS Support Battery
The disk shaped battery on the mainboard is a Lithium Ion
battery that supports the small amount of onboard memory where
the CMOS Setup utility’s configuration record is stored. The bat-
tery will last for a number of years and can conceivably outlast
the usage period of the computer it is in.
If the battery fails, the system will not retain the CMOS Setup
configuration and the system will need to be reconfigured every
time you turn it on. If this happens, replace the battery with the
same type as is installed. You can get a replacement at many
electronics supply stores, computer stores and other places that
sell a variety of batteries for various uses.
Optional Hardware Connectors
There are additional feature connectors on the mainboard for
optional ports. These require optional external port hardware.
The Onboard SCSI Connectors & Controller
The two SCSI connectors on the mainboard are controlled by
the onboard Adaptec SCSI controller. It controls both the Wide
SCSI (SCSI-2) and the Ultra Wide SCSI (SCSI-3) features.
The Wide SCSI feature uses the 50-pin connector on the main-
board and can support up to seven SCSI devices in a chain. The
ribbon cable that comes with the board has connectors for two
devices. If you want to install more than two internal SCSI de-
vices to the Wide SCSI controller you will need a cable with more
connectors on it. If you get another cable, it can have more con-
nectors on it than you have immediate use for. The controller
will ignore any connectors that are not connected to devices.
The Ultra Wide feature uses the 68-pin connector on the main-
board. If you want to use this feature you will need to purchase
an internal SCSI-3 cable to connect devices to the mainboard.
Software for the onboard SCSI features is on the Support Disk
that comes with the mainboard. There is also documentation that
further explains the software and how to use it.