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Chapter 10 Motherboard and Component Replacement 10-15
10.5.2 Replacing a DIMM
Caution – DIMMs are made of electronic components that are extremely sensitive
to static electricity. Ordinary amounts of static electricity from clothing or work
environment can destroy the DIMM.
Caution – Do not remove any DIMM from the antistatic container until ready to
install it on the motherboard. Handle DIMMs only by their edges. Do not touch
DIMM components or metal parts. Always wear a grounding strap when handling
DIMMs.
Caution – Each DIMM bank must contain four DIMMs of equal density (for
example four 32-Mbyte DIMMs) to function properly. Do not mix DIMM density in
any bank.
Caution – Use proper ESD grounding techniques when handling components. Wear
an antistatic wrist strap and use an ESD-protected mat. Store ESD-sensitive
components in antistatic bags before placing them on any surface.
1. Locate the DIMM slot(s) on the motherboard where DIMMs where removed.
Note – The system unit must have four identical DIMMs installed in any DIMM
bank. TABLE 10-1 identifies DIMM installation locations.
Caution – Hold DIMMs only by the edges.
2. Remove the DIMM from the antistatic container.
3. Install the DIMM as follows (
FIGURE 10-5):
a. Position the DIMM in the socket, ensure that the notch is on the same side as
the lever.
b. Using the thumbs, press firmly on the DIMM top until the DIMM is properly
seated.