A field technician is servicing a corporate laptop that requires a memory upgrade to support local client-side virtualization. After verifying that the system motherboard supports up to 32 GB of DDR4 RAM, the technician purchases a 16 GB DDR4 module based on matching voltage and frequency specifications. When attempting physical installation, the technician finds that the module is nearly twice as long as the internal memory slot and the notch does not align. Which of the following reflects the primary error made during component selection?
- The technician selected a standard desktop DIMM module instead of the compact SO-DIMM form factor required for laptops.Answer
- BThe technician failed to install a CCFL backlight inverter board to supply high-voltage power to the memory controller.
- CThe technician omitted a deep lithium-ion battery discharge calibration cycle required to un-key dual-channel expansion slots.
- DThe technician attempted to insert the memory module into a dedicated internal Thunderbolt controller slot.
Answer
The technician selected a standard desktop DIMM module instead of the compact SO-DIMM form factor required for laptops.
Laptops utilize Small Outline Dual In-line Memory Modules (SO-DIMMs) due to strict space restrictions inside portable chassis. Standard desktop memory modules (DIMMs) are significantly longer (around 133 mm versus 67 mm for SO-DIMMs) and feature differently positioned key notches to prevent improper insertion. Matching DDR generation, voltage, and clock frequency is insufficient if the physical form factor does not match.
Step-by-Step Solution
Key Concept
Laptop RAM Form Factors (SO-DIMM vs. DIMM)