IBM TotalStorage 300 Service Manual page 86

DIMM 1
To install a new DIMM, perform the following steps:
Attention:
take precautions to avoid damage from static electricity. For details on handling
these devices, see "Handling electrostatic discharge-sensitive devices" on page 177.
1. Review the information in "Before you begin" on page 67 and in "Safety and
2. Power off the engine and remove the cover. (See "Removing the cover and
3. Touch the static-protective package containing the DIMM to any unpainted metal
4. Turn the DIMM so that the pins align correctly with the connector.
5. Insert the DIMM into the connector by pressing on one edge of the DIMM and
6. Make sure that the retaining clips are in the closed position. If a gap exists
To replace a DIMM, perform the following steps:
1. Review the information in "Before you begin" on page 67 and in "Safety and
2. Power off the engine and remove the cover. (See "Removing the cover and
3. Touch the static-protective package containing the DIMM to any unpainted metal
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IBM NAS 300 Service Guide
DIMM 2
When you handle Electrostatic Discharge-Sensitive devices (ESD),
environmental notices" on page 173. Also review the documentation that comes
with your option.
bezel" on page 70.)
surface on the engine. Then, remove the DIMM from the package.
Note: To avoid breaking the retaining clips or damaging the DIMM connectors,
handle the clips gently.
then on the other edge of the DIMM. Be sure to press straight into the
connector. Be sure that the retaining clips snap into the closed positions.
between the DIMM and the retaining clips, the DIMM has not been properly
installed. In this case, open the retaining clips and remove the DIMM; then,
reinsert the DIMM.
environmental notices" on page 173. Also review the documentation that comes
with your option.
bezel" on page 70.)
surface on the engine. Then, remove the DIMM from the package.
Note: To avoid breaking the retaining clips or damaging the DIMM connectors,
handle the clips gently.
DIMM connector 4 (J18)
DIMM connector 3 (J19)
DIMM connector 2 (J21)
DIMM connector 1 (J23)