Advantech PPC-S123 manual Detach the CPU heat sink

3.3Installing 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.

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.

CPU heat sink

FIgure 3-3: Detach the CPU heat sink

2 0 PPC-S123 User's Manual