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PPC-S123 User's Manual
1. Unscrew the six screws on the CPU heat sink as shown in Figure 3-3,
then you can find one 370-pin CPU socket and one 144-pin SODIMM
socket.
3.3 Installing the Central Processing Unit
(CPU) and SDRAM Memory Module
The panel PC's central processing unit (CPU) can be upgaded to
improve system performnace. The panel PC provides one 370-pin
socket (Socket 370). The CPU must come with an attached heat sink
and CPU fan to prevent overheating. The panel PC also privides two
144-pin SODIMM sockets which can accept two SDRAM memory
modules up to 512 MB.
Warning! The CPU may be damaged if operated without a heat
sink and a fan.
Caution! Always disconnect the power cord from your panel PC
when you are working on it. Do not make connections
while the power is on as sensitive electronic compo-
nents can be damaged by the sudden rush of power.
Only experience electornics personnel should open
the panel PC.
FIgure 3-3: Detach the CPU heat sink
CPU heat
sink