Memory Locations and Replacement Procedures
Matrix DFE-Gold Series Modules Hardware Installation Guide B-7
DIMM Replacement Procedure (4H4282-49 and 4H4283-49)
ToremoveandreplacetheDRAMSIMMonthe4H428249or4H428349,referto
Figure B8andFigureB9resp ectively,andproceedasfollows:

Removing the DRAM SIMM

1. IfthereisanoptionalNEMinstalledonthemainboardofthe4H428249or
4H428349,proceedtostep1a.Otherwiseproceedtostep2.
a. RemoveandsavethethreescrewsattachingtheNEMtothestandoffonthemain
boardandfrontpanel.
b. LifttheNEMstraightupandoffthetwomoduleconnectorsonthemainPC
board.
Caution: Observe all Electrostatic Discharge (ESD) precautions when handling sensitive
electronic equipment.
Precaución: Al trabajar con equipos electrónicos sensibles, tome todas las precauciones
de seguridad para evitar descargas de electricidad estática.
Note: Prior to removing the DRAM SIMM in a 4H4282-49 or 4H4283-49, you must remove
the Network Expansion Module to gain access to the DRAM SIMM memory and
connector.
Figure B-8 NEM Removal and DRAM SIMM Location (4H4282-49 and 4H4283-49)
1NEM (not on all DFE modules) 4Module front panel
2Main PC board (4H4282-49 is shown) 5Module connectors on main board
3Screws (3) 6DRAM SIMM memory module
4H4282-49
FAST ENET
DFE
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