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Difficulty: MediumLaptop Hardware Components and Upgrades

A technician is performing hardware diagnostics and component replacements on a fleet of corporate laptops. Match each observed laptop issue or component requirement to its corresponding internal hardware part or feature.

  • The laptop display screen stays completely dark, but shining a flashlight directly at the panel reveals a faint image.Inverter board (or display backlight power circuit)
  • A high-performance laptop requires a storage drive replacement that interfaces directly with PCIe lanes for maximum throughput in a compact form factor.M.2 NVMe SSD
  • A laptop suffers from intermittent wireless connectivity loss after a display replacement because internal antenna wires were pinched.Mini-PCIe / M.2 Wi-Fi card module
  • A technician needs to expand system memory on a thin laptop that uses non-soldered expansion slots.DDR4 / DDR5 SODIMM

Answer

Each laptop hardware symptom or requirement is correctly matched to its specific component: faint screen output matches the display inverter board; high-speed compact PCIe storage matches the M.2 NVMe SSD; wireless connection issues following screen maintenance match the Wi-Fi card module antenna routing; and expanding laptop RAM slots matches SODIMM memory modules.
Each issue connects to its distinct hardware function: faint images signify backlight/inverter failure; high-speed M.2 NVMe drives utilize PCIe; wireless degradation after screen removal relates to Wi-Fi antenna leads routed into the lid; and laptop RAM slots require SODIMMs.

Step-by-Step Solution

1
Analyze the faint display symptom.
Confirm the LCD panel is rendering graphics but lacks backlighting.
When a screen displays an image visible only under a light source, the issue lies in the backlight delivery system, such as a faulty inverter board.
2
Evaluate the compact storage interface requirement.
Identify M.2 NVMe solid-state drives.
M.2 NVMe SSDs leverage PCIe buses for elevated read/write speeds within laptop chassis limits.
3
Identify the root cause of post-repair wireless signal loss.
Associate antenna wiring routed to the Wi-Fi module through the hinge assembly.
Wi-Fi card antennas run into the display enclosure, making their connections vulnerable during panel disassemblies.
4
Select the correct memory form factor.
Choose SODIMM modules over full-size DIMMs.
Laptops use SODIMMs to fit small internal spaces when non-soldered memory slots are present.

Key Concept

Laptop Component Identification and Hardware Troubleshooting
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Topics

Laptop Hardware Components and Upgrades

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