P5SD-B User’s Manual
2:
Using Your Mainboard – 2.8
Cooling Fan Connectors
There are two cooling fan power connectors on the mainboard.
One is for the CPU cooling fan (CPUFAN1) and the other for a
case-mounted cooling fan (SYSFAN1). When the system enters
Suspend mode, the cooling fans shut off.
UltraDMA Hard Disk Drive Support
This mainboard supports hard disks that use UltraDMA data
transfer. You attach an UltraDMA drive to one of the IDE cables.
If you use the Optimum Settings feature in the CMOS Setup
utility the system will automatically detect the drive and config-
ure the system to use it.
CMOS Support Battery
The disk shaped battery on the mainboard is a 3-volt Lithium
cell battery that supports the small amount of onboard memory
where the CMOS Setup utility’s configuration record is stored.
The battery 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.