M81E-X Series User’s Manual
8
5. Function Illustrations
5.1
Before You Begin
The M81E-X series motherboard is designed to fit into a standard ATX form factor chassis.
The pattern of the mounting holes and the position of back panel I/O ports meet the ATX
motherboard specification. The chassis may come with various mounting fasteners which
are made of metal or plastic. It is highly recommended to use as many metal fasteners as
possible to mount the motherboard in the chassis for better grounding.
5.2 Caution Static Electricity
Before removing the motherboard from its anti-static bag, you need to eliminate any static
electricity that may be accumulated on your body by touching a grounded or anti-static
surface. If noting is available, touch the housing of power supply which is plugged into the
AC outlet.
After removing the motherboard from its anti-static bag, place it only on a grounded or anti-
static surface, component side up. Inspect the motherboard and contact you retailer
immediately if it is damaged.
5.3 Pre Installation Procedure
Before you install your motherboard into a chassis, its convenient to install the memory
modules and set all the jumpers to correct settings. The examples and explain below
shown the function and identify of the jumper setting to help you understand the circuits
and enable or disable certain features or properties of the motherboard.
Step1:
Jumper Settings Explain
!
!
!
!
!
Battery “BAT1”
!
It is a coin-cell style Lithium CR2032 battery is used to provide power to the
RTC and CMOS RAM for keep the data inviolate and effective. The RTC is a
real time clock device, which provides the date and time to system. The CMOS
RAM is used for keeping the information of system configuration, so the system
can automatically boot O/S every time.
!
The battery has a 3~5 years life if the system is not power up. When the
system power up, the power for the RTC and CMOS RAM is supplied from
the 3.3V power supply to extend the life of battery. The user can change a
