Installation guide

Memory Locations and Replacement Procedures
Matrix DFE-Diamond Series Installation Guide B-9
Removing the Optional Network Expansion Module (NEM)
RefertoFigure B‐12andproceedasfollows:
1. Attachtheantistaticwriststrap(refertotheinstructionsontheantistaticwriststrappackage).
Figure B-12 Removing the Optional Network Expansion Module
(NEM)
2. RemoveandsavethetwocoverplatescrewsfasteningtheNEMtotheDFEmodulefront
panel.
3. RemoveandsavethescrewfasteningtheNEMtothestandoffonthemainPCboard.The
screwsremovedinsteps2and3areusedlatertoreinstalltheNEM.
4. LiftandremovetheNEM
offthetwomainPCboardconnectors.Nowyouhaveaccesstothe
DRAMSIMMandDIMM.ToreplacetheDRAMSIMM,referto“DRAMSIMMReplacement
Procedure”onpage B‐5.ToreplacetheDIMM,referto“RemovingtheDIMM”onpage B‐7.
5. ReinstalltheNEM.Referto
theinstallationinstructionsshippedwiththeNEMfordetails.
1 Coverplate screws (2) 4 Screw
2 NEM 5 Main PC board
3 DFE module front panel 6 Main board connectors