Table 3-2 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 3-2
Installing Memory
To install memory, follow these steps:
1. Remove the top cover from the server. See “Removing the Top Cover” (page 48).
2. Remove the airflow guide. See “Removing the Airflow Guide” (page 49).
3. Complete the following memory installation prerequisite tasks before installing the memory:
a. Determine the DIMM load order. For more information, see “Memory Load Order”
(page 52).
b. See Figure 3-8 (page 51) to determine which DIMM slots to populate.
c. Read, understand, and follow the general guidelines to install memory in the server..
4. Install each DIMM.
a. Align the DIMM with the slot located on the memory board, and align the key in the
connector with the notch in the DIMM.
b. Firmly and evenly push on each end of the DIMM until it seats into the slot.
c. Ensure the extraction levers are in the fully closed position.
5. Replace the airflow guide if you are finished installing additional components. See “Replacing
the Airflow Guide” (page 57).
6. Replace the top cover if you are finished installing additional components. See “Replacing
the Top Cover” (page 63). Otherwise, continue with installing components.
Installing a Processor
The rx2660 server utilizes single- or dual-core processors. Dual-core processors contain two cores
that function as separate processors. Dual-core processors double the processing power of the
processor while maintaining the physical dimensions of a single processor.
The server holds one or two single- or dual-core processors that provide the following
configuration options:
• 1P/1C (One processor / one core)
• 1P/2C (One processor / two cores)
• 2P/2C (Two processors / two cores)
• 2P/4C (Two processors / four cores)
52 Installing the Server
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