Grass Valley PRS 250 RAID Storage System - Manual (Page 69)

Installing or Removing SP Memory Modules
RAID Instructions 3-23
Installing or Removing SP Memory Modules
When you replace or add an SP, you must install the memory modules in the DIMM
connectors on the replacement or add-on SP’s printed circuit board. You should not
ship an SP with its memory modules installed. If you want to return a failed SP, you
must remove the memory modules from the printed circuit board and place the board
and memory modules in separate shipping containers.
Installing SP Memory Modules
IMPORTANT The SP has one pair of memory modules (2 X 16Mb). They must
be installed in the FIRST PAIR connectors, farthest away from the edge of the
board.
To install SP memory modules:
1. Read Avoiding Electrostatic Discharge (ESD) Damage.
2. Attach the clip of the ESD wrist band (strap) to the grounded chassis, and put the
wrist band around your wrist with the metal button against your skin.
3. If you are installing memory modules, remove the SP you are upgrading and place
it on a static-free work surface.
4. Remove either the SP board and memory modules or the additional memory
modules from their packaging, and place them on a static-free work surface.
IMPORTANT A memory module has a notches on its edge connector so that
you can insert it only one way.
5. Install each memory module in the appropriate connector, starting with the module
in the connector farthest away from the edge of the board (FIRST PAIR).
a. Lower the locking tabs on the DIMM connector by pushing outwards from the
connector.
b. Carefully place the memory module in the DIMM connector, then press down
on the memory module until it snaps into place and the locking tabs latch into
the notches on the sides of the DIMM.
3. Place the SP on a static-free work surface or on its antistatic packaging within easy
reach of the storage chassis.
See Installing an SP later in this chapter to install an SP.