Onboard System Memory Size; Figure 2-2: Dip-Type Cache Ram; Figure 2-3: Simm-Type Dram - DTK Apex 386/33 User Manual

Onboard System Memory Size

The PEM-3301 mainboard has two kinds of dual sockets for Cache
RAM and one kind of SIMM socket for DRAM.
Chip Insertion
Remember that when inserting chips/RAM modules, you must make
sure the notched or dotted end of the chip/RAM module is lined up with
the notched end of the socket. Gently push the chip/RAM module into
the socket, and be careful not to bend the pins. See the figures below:

Figure 2-2: DIP-Type Cache RAM

Figure 2-3: SIMM-Type DRAM

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Chapter 2: Setting Up Your System