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Difficulty: MediumMotherboard, RAM, CPU, and Power Issues

A technician is dispatched to service a small form factor kiosk system that requires a RAM upgrade. Upon inspecting the system board, the technician notes that the motherboard features 260-pin memory slots. However, the newly purchased memory modules brought to the site are 288-pin modules and cannot physically fit into the slots. Which of the following best describes the hardware mismatch, and what type of memory module should the technician obtain to complete the upgrade?

  1. The technician brought standard desktop DDR4 UDIMMs instead of the required DDR4 SO-DIMMs.Answer
  2. B
    The technician brought DDR3 SO-DIMM modules instead of the required DDR4 UDIMM modules.
  3. C
    The technician brought unbuffered non-ECC memory modules instead of registered RDIMM modules.
  4. D
    The technician misread the POST failure code and attempted to replace a functional system CPU rather than identifying motherboard socket damage.

Answer

The technician brought standard desktop DDR4 UDIMMs instead of the required DDR4 SO-DIMMs.
DDR4 memory for desktop computers uses 288-pin unbuffered DIMM (UDIMM) modules. Small form factor systems, kiosks, and laptops utilize 260-pin Small Outline DIMM (SO-DIMM) modules. Because the kiosk motherboard is equipped with 260-pin slots, the technician requires DDR4 SO-DIMM memory rather than full-sized 288-pin desktop UDIMMs.

Step-by-Step Solution

1
Identify the physical slot configuration on the small form factor motherboard.
The motherboard contains 260-pin slots designed for DDR4 Small Outline Dual In-line Memory Modules (SO-DIMMs).
Small form factor systems and laptops commonly use SO-DIMM modules to conserve space.
2
Compare the slot requirements with the acquired replacement RAM.
The acquired 288-pin modules correspond to standard full-sized desktop DDR4 UDIMMs.
Full-sized desktop DDR4 modules have 288 pins and a different physical notch placement, preventing insertion into 260-pin SO-DIMM slots.
3
Select the correct replacement hardware.
Procure a 260-pin DDR4 SO-DIMM module to match the motherboard slots.
Matching both the pin count and memory generation ensures physical keying compatibility and proper operation.

Key Concept

RAM Form Factors and Pin Configurations (SO-DIMM vs. UDIMM)
Estimated Time:1m 0s
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Topics

Motherboard, RAM, CPU, and Power Issues

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