Sun Microsystems 60 service manual Replacing a Dimm

10.5.2Replacing 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 10-1identifies 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.

Chapter 10 Motherboard and Component Replacement 10-15