ATXN-5520 / ATXW-5520 Technical Reference
Motherboard Installation
3-1
Chassis Plans
Chapter 3
Motherboard Installation
Introduction
For a successful installation, it is essential that you follow the recommendations for handling static devices.
There are many small and static-sensitive components on the motherboard. Care must be used when
handling the motherboard to ensure that none of the small components are damaged. As you begin the
motherboard installation, review the following board handling cautions that you saw previously in front of
this manual.
Handling Precautions
WARNING:
This product has components that may be damaged by electrostatic discharge.
To protect your motherboard from electrostatic damage, be sure to observe the following precautions when
handling or storing the board:
Keep the motherboard in its static-shielded bag until you are ready to perform your installation.
Handle the motherboard by its edges.
Do not touch the I/O connector pins.
Do not apply pressure or attach labels to the motherboard.
Use a grounded wrist strap at your workstation or ground yourself frequently by touching the
metal chassis of the system before handling any components. The system must be plugged into an
outlet that is connected to an earth ground.
Use antistatic padding on all work surfaces.
Avoid static-inducing carpeted areas.
Recommended Board Handling Precautions
This motherboard has components on both sides of the PCB. Some of these components are extremely
small and subject to damage if the board is not handled properly.
It is important for you to observe the
following precautions when handling or storing the board to prevent components from being damaged or
broken off:
Handle the board only by its edges.
Store the board in padded shipping material or in an anti-static board rack.
Do not place an unprotected board on a flat surface.
Chassis Mounting
The motherboard uses the standard hole-pattern defined in the SSI-EEB 2008 – Rev. 1.0 industry
specification. This spec is commonly referred to as the Extended ATX form factor. The chassis you intend
to use for your motherboard needs to support this motherboard form factor and standard Extended ATX
mounting hole pattern. Most standard industrial chassis support multiple mounting-hole patterns.
Computer chassis typically have either plastic or metal mounting standoffs or fasteners. Metal mounting
standoffs are preferable because they provide the necessary chassis ground for the motherboard and
threaded standoffs will provide better motherboard mounting security compared to clip-in fasteners.
Carefully align the motherboard mounting holes up with the chassis mounting standoffs. The motherboard
mounting holes have a nominal diameter of 0.156” or 3.96mm. The thread size and style of the chassis‟
