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Difficulty: MediumRAM Types and Characteristics

A desktop motherboard features four memory slots labeled DIMM_A1, DIMM_A2, DIMM_B1, and DIMM_B2, where slots labeled 'A' belong to Memory Channel A and slots labeled 'B' belong to Memory Channel B. A single module is currently installed in slot DIMM_A1. To achieve dual-channel throughput when adding a second identical module, into which slot should the new RAM module be installed?

  1. DIMM_B1Answer
  2. B
    DIMM_A2
  3. C
    A standard SO-DIMM module installed via an adapter into DIMM_A2
  4. D
    DIMM_A2 or DIMM_B2 interchangeably, because dual-channel mode automatically activates whenever two identical modules are inserted into any open slots

Answer

The new RAM module must be installed into slot DIMM_B1 to pair Channel A (DIMM_A1) with Channel B (DIMM_B1) for dual-channel operation.
Dual-channel memory technology doubles communication bandwidth between the memory controller and RAM by utilizing two separate 64-bit buses simultaneously. To enable dual-channel operation, matching memory modules must be installed into corresponding slots of separate memory channels (in this case, DIMM_A1 on Channel A and DIMM_B1 on Channel B).

Step-by-Step Solution

1
Identify the existing memory channel allocation.
Slot DIMM_A1 is currently occupied on Memory Channel A.
Dual-channel architecture requires simultaneous access to two independent memory channels.
2
Determine the corresponding slot on the second memory channel.
Slot DIMM_B1 is the corresponding primary slot on Memory Channel B.
Populating matching slot positions across Channel A and Channel B activates multi-channel memory controller interleaving.

Key Concept

Dual-Channel RAM Slot Population Rules
Estimated Time:1m 0s
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Topics

RAM Types and Characteristics

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