Ultra 80 Memory Riser
Ultra 80 / Enterprise 420R / Netra t 1400/1405
Notes
- DIMMs are required on both the Riser Board and the System Board.
- Every populated bank must contain four same-size DIMMs. Four
same-size DIMMs are a quad.
- To activate 2-way interleaving, quads must be installed in
banks 0 and 1, which are non-adjacent banks.
(A third quad may be installed in either remaining bank, but that
will disable interleaving.)
- To activate 4-way interleaving, all four banks must be populated
with quads.
- Each bank addresses 1GB of memory.
- Damage to the Mictor Connectors can occur if DIMMs are installed
or removed when the Riser Board is installed on the System Board.
- Improper seating of the Riser Board will cause the system to fail
self-test.
Torque Requirements
- Use torque tool 250-1611 or 340-6091 to install the memory riser.
Both are calibrated to 5.0 +/- 0.5 in/lbs (.565 Nm).
- A torque tool is included with systems that use the memory riser.
- The Micrometer Hand-Torque screwdriver (250-1239) with the main
scale set to 5.0 lbs. and an "R2 Square Bit" may also be used.
References
-
Ultra 80 Service Manual, 805-6618.
-
Ultra 80 Product Note, 806-1457.
-
Memory Riser Assembly Damage Caution, 806-2892.
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