the first descendant slot maketh module
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by adding a memory module to the vacant expansion memory module slot(s) or by upgrading the existing memory module in the primary memory module slot(s). WARNING!
Why you NEED to install RAM like this!
Go to the RAM slot and gently remove the RAM module. Clean the RAM slot, paying attention to accumulated dust. Clean the RAM module and make sure it's free of dust, as well.
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The SGM-1004A occupies one module slot. RM-1008A Eight Relay Circuit Module The RM-1008A provides the FX-2003-12NXTDS with eight individual configurable relays per module.