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
76 HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software
Maintenance and Service Guide
Installing DIMMs
Use the following steps to install DIMMs in a cache module in single-controller
configurations:
Note: Before installing DIMMs, note the following:
■ New cache modules have no 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 Figure 25 on page 70 and Table 8 on page 70 on 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 configurations on page 70.
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. Carefully align the cache module in the appropriate guide rails.
Caution: Misalignment can damage the backplane.
7. Insert the cache module into the appropriate bay and engage the retaining
levers.
Note: For StorageWorks Model 2100 and 2200 enclosures, omit step 8 and step 9
(on page 77). The ECB does not contain switches or use ECB Y-cables.