HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software Maintenance and Service Guide (EK-G80MS-SA. C01, March 2005)

Common Replacement Information and Procedures
80 HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software
Maintenance and Service Guide
13. Press down on the DIMM retaining clips at both ends of the DIMM being
removed (see Figure 28 on page 75).
Note: To facilitate pressing down on the DIMM retaining clips, use the eraser end of a
pencil or a small screwdriver.
14. Gently remove the DIMM from the DIMM slot, and then place it in an
antistatic bag or on a grounded antistatic mat.
15. Repeat step 13 and step 14 for each DIMM being replaced.
Installing DIMMs
Use the following steps to install DIMMs in a cache module in dual-redundant
configurations:
Note: Before installing DIMMs, note the following:
■ New cache modules arrive without DIMMs installed; the DIMMs are packaged
separately. Unpack the DIMMs and install them into the cache module as required.
■ Both cache modules must contain the same memory configuration for the ACS
version. See page 70 for valid cache module memory configurations.
■ Some HSG80 controller configurations require a 512-MB cache memory
configuration. Make sure the cache memory configuration meets or exceeds the
ACS requirement. See “Cache memory configuration” on page 2.
1. Insert each DIMM (see Figure 28 on page 75) straight into the appropriate
slot of the cache module, ensuring that the notches in the DIMM align with
the tabs in the slot.
2. Press the DIMM gently into the slot until seated at both ends.
3. Engage the two retaining clips for the DIMM (see Figure 28 on page 75).
4. Make sure both ends of the DIMM are firmly seated in the slot and both
retaining clips engage the DIMM.
5. Repeat step 1 through step 4 for each DIMM.
6. If not already connected, connect a PC or terminal to the operational
controller.