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Difficulty: Very hardLaptop Hardware Components and Upgrades

An IT technician is tasked with hardware maintenance and upgrades for a fleet of executive ultra-thin laptops. The manufacturer specification sheet lists soldered LPDDR5 system memory, an OLED display panel, an M.2 PCIe NVMe drive slot, and a smart lithium-ion battery. The department manager submits a work order requesting three specific actions: upgrading the RAM from 16 GB to 32 GB using modular memory, replacing a suspected backlight inverter board on a unit with a dim display, and performing repeated deep discharge cycles on the battery to restore full capacity. Which of the following technical assessments correctly evaluates the feasibility and appropriateness of these requested tasks?

  1. The RAM cannot be upgraded with modular components because LPDDR5 memory is soldered to the system board, OLED screens do not use a backlight inverter, and deep discharges degrade lithium-ion batteries.Answer
  2. B
    The RAM can be upgraded by populating an empty DDR5 SO-DIMM slot, while the OLED screen issue requires replacing the high-voltage CCFL inverter board located in the screen bezel.
  3. C
    The RAM upgrade requires installing full-sized desktop DIMM modules, while the battery maintenance procedure is the standard method for reconditioning modern lithium-ion power cells.
  4. D
    The RAM upgrade can be performed using an M.2 expansion card, while deep battery discharging must be completed before the backlight inverter receives power delivery.

Answer

The RAM cannot be upgraded with modular components because LPDDR5 memory is soldered to the system board, OLED screens do not use a backlight inverter, and deep discharges degrade lithium-ion batteries.
The correct assessment recognizes that LPDDR5 memory soldered directly to the system board cannot be upgraded via modular memory slots. Furthermore, OLED display technology relies on organic diodes that produce their own light per pixel, rendering backlight inverters obsolete. Finally, deep discharge cycles accelerate physical wear on lithium-ion battery chemistries rather than restoring capacity.

Step-by-Step Solution

1
Evaluate the system memory architecture specified in the work order.
LPDDR5 (Low-Power Double Data Rate 5) memory in ultra-thin laptops is permanently soldered to the motherboard, meaning there are no modular SO-DIMM slots available for a RAM upgrade.
Identifying motherboard component integration prevents ordering non-compatible modular memory.
2
Analyze the display technology and illuminated component requirements.
OLED (Organic Light-Emitting Diode) displays use self-illuminating pixels. They do not require CCFL or LED backlights, and therefore do not contain inverter boards.
Recognizing display architecture avoids attempting repairs on non-existent hardware components.
3
Assess the battery chemistry and proper maintenance procedure.
Modern laptops use Lithium-ion (Li-ion) batteries, which suffer increased wear and degradation when subjected to full deep discharges.
Proper maintenance protocol for Li-ion relies on shallow discharge cycles and onboard smart battery management circuits.

Key Concept

Laptop Hardware Specifications and Component Integration
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Topics

Laptop Hardware Components and Upgrades

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