SK0-004 · Question #108
A server administrator wants to upgrade the memory of the server using two memory modules. The server has two banks of memory with the following slots available: A2, A3, A4, B2, B3, and B4. In which…
The correct answer is B. Slots A2 and B2. Dual-channel memory requires installing matched modules in the same slot number across both banks, making A2 and B2 the only correct pairing among the choices.
Question
A server administrator wants to upgrade the memory of the server using two memory modules. The server has two banks of memory with the following slots available: A2, A3, A4, B2, B3, and B4. In which of the following two slots should the administrator install the additional RAM?
Options
- ASlots A2 and A3
- BSlots A2 and B2
- CSlots A2 and B4
- DSlots B2 and B3
How the community answered
(38 responses)- A5% (2)
- B79% (30)
- C13% (5)
- D3% (1)
Why each option
Dual-channel memory requires installing matched modules in the same slot number across both banks, making A2 and B2 the only correct pairing among the choices.
Slots A2 and A3 are both located in bank A, using only a single memory channel and preventing dual-channel operation.
Dual-channel operation requires the memory controller to access two DIMMs simultaneously through separate channels, which is achieved by populating the same slot number in each bank - slot 2 in bank A and slot 2 in bank B. This matched-slot pairing doubles the effective memory bandwidth compared to single-channel. Installing modules in mismatched slot positions or within the same bank prevents dual-channel activation and falls back to single-channel mode.
Slots A2 and B4 span different banks but occupy different slot positions, which does not satisfy the matched-slot requirement for dual-channel mode.
Slots B2 and B3 are both located in bank B, using only a single memory channel and preventing dual-channel operation.
Concept tested: Dual-channel memory slot pairing across banks
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