220-1201 Practice Question: A technician is tasked with upgrading the RAM in…

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

• ✗

  The new RAM is not seated properly

  Why it's wrong here

  When RAM modules are not properly seated in their DIMM slots, the system typically fails to POST (Power-On Self-Test) entirely. This often results in a series of diagnostic beeps, a blank screen, or a complete failure to boot, as the memory controller cannot establish proper communication. The scenario described, where the system boots and detects only the original 8GB, indicates that the original modules are functional and recognized, making improper seating of the *new* RAM less likely to be the sole cause of the *non-detection* of the new modules, though it could contribute to instability if the system tried to use them.

• ✗

  The motherboard does not support four sticks of RAM

  Why it's wrong here

  Most modern motherboards equipped with four DIMM slots are designed to support a full complement of four RAM sticks, even if populating all slots might result in the memory operating at a slightly reduced clock speed due to increased load on the memory controller. While some older or very budget-oriented motherboards might have specific limitations, it is highly improbable that a motherboard with four physical slots would completely fail to *detect* the presence of additional modules simply because all slots are populated. The issue is more likely related to compatibility or configuration rather than a fundamental lack of support for the physical presence of four modules.

• ✓

  The new RAM is incompatible with the existing RAM

  Why this is correct

  RAM incompatibility, often stemming from differences in speed (MHz), timings (CL values), voltage, or even manufacturing specifics, is a common reason for partial or complete memory detection failure. When new modules are incompatible with existing ones, the motherboard's memory controller may struggle to "train" all modules together effectively. This can result in the system defaulting to recognizing only the original, compatible pair, or failing to boot entirely, as it cannot establish a stable configuration across all installed memory.

• ✗

  The BIOS needs an update to support higher capacity

  Why it's wrong here

  While a BIOS (Basic Input/Output System) update can sometimes be necessary to enable support for significantly larger individual RAM module capacities or newer memory technologies, 16GB total system RAM is a very common and standard configuration for most motherboards manufactured in the last decade. It is highly unlikely that a system capable of recognizing 8GB would require a BIOS update merely to detect an additional 8GB, bringing the total to 16GB, unless the individual new modules themselves are of an unusually high capacity not initially supported by an older BIOS revision.

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