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Zorluk: ZorRAM Types and Characteristics

A technician is setting up a new desktop workstation for a client who performs heavy video editing. The motherboard features four DDR4 DIMM slots color-coded and labeled as Channel A (Slots A1 and A2) and Channel B (Slots B1 and B2). The technician installs two matching 16 GB memory modules directly into Slots A1 and A2. While the operating system detects the full 32 GB of system memory, bandwidth diagnostic tests show the system is operating significantly below its expected memory throughput. Which of the following actions should the technician take to resolve the performance issue?

  1. Move the memory module from Slot A2 into Slot B1 to populate alternating slots across both channels.Cevap
  2. B
    Replace the existing unbuffered DIMMs with SO-DIMM modules designed for high-throughput workstation motherboards.
  3. C
    Keep both memory modules in Slots A1 and A2 and enable registered memory mode within the system BIOS/UEFI.
  4. D
    Install a second pair of identical memory modules into Slots B1 and B2 to force the motherboard memory controller to switch from single-channel to dual-channel operation.

Cevap

Move the memory module from Slot A2 into Slot B1 to populate alternating slots across both channels.
Dual-channel memory architecture requires identical RAM modules to be installed into designated slots across distinct memory channels (typically alternating slots such as A1 and B1). When modules are placed into adjacent slots on the exact same channel (A1 and A2), the memory controller operates in single-channel mode, restricting data throughput to a 64-bit bus width even though total capacity is recognized.

Adım Adım Çözüm

1
Analyze the reported symptom and current configuration.
The OS recognizes 32 GB (2 x 16 GB), confirming both physical RAM modules are functional, but memory throughput is running at single-channel speed.
Populating adjacent slots on the same channel (Slots A1 and A2) forces the memory controller to communicate over a single 64-bit bus (single-channel operation).
2
Determine the requirement for dual-channel memory operation.
Dual-channel operation requires memory modules to be distributed evenly across separate memory channels (Channel A and Channel B).
Using dual channels opens a 128-bit wide data path, effectively doubling theoretical memory bandwidth.
3
Select the correct slot installation strategy.
Relocating one module from Slot A2 to Slot B1 leaves one module in Channel A (A1) and one in Channel B (B1).
This populates both channels identically, allowing the memory controller to activate dual-channel mode without acquiring extra hardware.

Anahtar Kavram

Dual-channel RAM slot population rules and channel architecture
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RAM Types and Characteristics

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