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CPU installing and upgrading
You can upgrade to a more powerful Celeron CPU at any time.
Simply remove the old CPU, install the new one, and set the
jumpers for the new CPU speed.
Warning! Always disconnect the power cord from your
Caution!
Install a CPU in the ZIF socket
SBC-557 Series provides a Zero Insertion Force (ZIP) socket for
easy CPU installation.
1. Make sure the ZIF socket lever is in the upright position. To
raise the lever, pull it out to the side a little and raise it as far as
it will go.
2. Place the CPU in the empty socket. Follow the instructions that
came wth the CPU. If you have no instructions, do the follow-
ing: Carefully align the CPU so it is parallel to the socket and
the notch on the corner of the CPU corresponds with the notch
on the inside of the socket. Gently slide the CPU in. It should
insert easily. If it doesn't, pull the lever up a little more.
chassis when you are working on it. Do not
make connections while the power is on as
sensitive electronic components can be dam-
aged by the sudden rush of power. Only experi-
enced electronics personnel should open the
system chassis.
Always ground yourself to remove any static
charge before touching the system board.
Modern electronic devices are very sensitive to
static electric charges. Use a grounding wrist
strap at all times. Place all electronic components
on a static-dissipative surface or in a static-
shielded bag when they are not in the chassis.
Chapter 2 Installation 15
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