Installation Guide, Third Edition - HP Integrity rx2660 Server

The supported DIMM sizes for the server are as follows:
• 512 MB
• 1 GB
• 2 GB
• 4 GB
Memory Pairs
When installing memory, use a minimum of one pair of like-sized DIMMs. You can install
additional DIMMs later. Install DIMMs into the appropriate slots on the system board; each slot
has a unique ID.
Figure 1-8 shows the DIMM slot IDs.
Figure 1-8 Memory Location and Slot IDs
CAUTION: Failure to observe the following cautions results in system degradation or failure:
• Do not mix DIMM sizes or types within a pair.
• Load DIMM pairs in order of size from largest to smallest. For example, if you have a pair
of 4 GB DIMMs and a pair of 1 GB DIMMs, install the pair of 4 GB DIMMs first.
Table 1-2 lists the memory load order.
Table 1-2 Memory Load Order
Memory SlotsPair Number
0A; 0B1
1A; 1B2
2A; 2B3
3A; 3B4
Memory Loading Rules and Guidelines
Use the following rules and guidelines when installing memory:
• Install DIMMs in pairs
• Ensure that DIMMs within a pair are identical
• Install DIMM pairs in order of size from largest to smallest
• Install DIMM pairs in the specified order shown in Table 1-2
Installing Additional Components 23