Dimm; Removing A Dimm - Sun Microsystems Ultra 80 Service Manual

9.7

DIMM

Use the following procedures to remove and replace a DIMM.
Caution – DIMMs consist 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 – When removing and replacing a single DIMM, an identical replacement
is required. The replacement DIMM must be inserted into the same socket as the
removed DIMM.
Caution – Each DIMM bank must contain at least four DIMMs of equal density (for
example: four 64-Mbyte DIMMs) to function properly. Do not mix DIMM densities
in any bank.
9.7.1

Removing a DIMM

Caution – Handle DIMMs only by the edges. Do not touch the DIMM components
or metal parts. Always wear a grounding strap when handling a DIMM.
1. Power off the system and remove the access panel.
See Section 6.1 "Powering Off the System/Removing the Access Panel" on page 6-1.
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.
2. Attach the antistatic wrist strap.
See Section 6.2 "Attaching the Antistatic Wrist Strap" on page 6-5.
Caution – The memory riser assembly must come straight out of the motherboard
connectors to avoid damaging the connectors.
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