System Board; Removing The System Board - Dell E28S Series Owner's Manual

After you finish
1. Install the power supply units.
2. Follow the procedure listed in After working inside your system section.

System board

A system board (also known as the motherboard) is the main printed circuit board found in
systems. The system board allows communication between many of the crucial electronic
components of the system, such as the central processing unit (CPU) and memory, and also
provides connectors for other peripherals. Unlike a backplane, a system board contains significant
number of sub-systems such as the processor expansion cards, and other components.

Removing the system board

Before you begin
Figure 100 Installing the power interposer board
a. standoffs (2)
b. power interposer board
c. fan cable connector
d. screw (2)
e. PSU cables to the system board (3)
CAUTION Many repairs may only be done by a certified service technician. You should only
perform troubleshooting and simple repairs as authorized in your product documentation, or as
directed by the online or telephone service and support team. Damage due to servicing that is
not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that are shipped with your product.
CAUTION If you are using the Trusted Program Module (TPM) with an encryption key, you
may be prompted to create a recovery key during program or System Setup. Be sure to create
Installing and removing system components
Dell PowerEdge R430 Owner's Manual
183