Yellow Light on Motherboard: What Does it Mean

You may have seen a yellow light on your motherboard at some point as a tech expert or computer hobbyist. What does the yellow light on a motherboard imply exactly? It is a warning indication that suggests a system issue. In this post, we’ll examine the various causes of the yellow light that may appear on your motherboard as well as possible solutions.

What Does the Yellow Light on a Motherboard Mean?

The “standby light,” often known as the yellow light, typically denotes a power supply issue. If you notice this light, it indicates that the system is not receiving enough power from the power source to function normally. This can be brought on by a number of things, such as a bad power supply, a short circuit, or a broken system part.

Common Causes of the Yellow Light on a Motherboard

The yellow light on a motherboard can be caused by a number of frequent issues, including:

Faulty Power Supply

A bad power supply is one of the most frequent reasons why a motherboard displays a yellow light. The yellow light could emerge as a result of a bad power supply. You should try changing the power supply with a new one in order to solve this problem.

Short Circuit

A short circuit is another frequent reason for the yellow light. This can happen when a system component is destroyed, leading to a connection between two sites that are not supposed to be connected. You could try unplugging the device to see if that fixes the problem, and look for any evidence of damage like melted or burned components.

Malfunctioning Component

This light on the motherboard may also signal a problem with a system component. This could comprise a number of parts, including the CPU, RAM, or graphics card. Try swapping out the problematic component for a new one to see if that helps.

How to Address a Motherboard’s Yellow Light

There are numerous actions you can take to troubleshoot the problem if the motherboard’s yellow light is on:

  • Check the Power Supply: You should attempt replacing the power supply if you think it is the source of the yellow light.
  • Check for Short Circuits: Unplug the system and look for any signs of damage, such as burned or melted components, if you suspect a short circuit is the source of the yellow light.
  • Replace Faulty Components: If you think a faulty component is the source of the yellow light, you should try replacing it with a fresh one.
  • Consult the Motherboard Manual: If the light on your motherboard is still on, you should consult the manual for additional troubleshooting instructions.


Understanding what the yellow light on a motherboard signifies and how to troubleshoot the issue can help you address the issue quickly and effectively. The yellow light on a motherboard can be a warning signal that indicates a problem with the system. You can make sure that your system is operating correctly and prevent any potential difficulties in the future by according to the instructions provided in this article.

Muhammad Haroon
Muhammad Haroon
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