Red Light On Motherboard | Explained

Did a red light suddenly pop up on your motherboard out of nowhere and get you all worked up? Well, it may seem like a big problem, but it is totally solvable. This red light on motherboard could indicate one of the following issues.

Red Light On Motherboard | Reasons of Occurring

  • Internal hardware such as CPU, graphics card, or RAM isn’t plugged correctly or has stopped working.
  • The CMOS battery may have died.
  • Errors while booting the hard drive containing the operating system.
  • The installed CPU may be faulty.
  • The CPU fan may not be appropriately plugged in the header.

You must have noticed that the red light only appears after starting your computer, but it fails to boot. Also, it will show a pitch-black screen with no content or whatsoever. However, it can be fixed once you have specified the type of error you are facing.

The error also depends on the location of the red light. We will explore this topic further and also help you find ways to fix this issue. So, let’s get started!

How To Understand The Indicators On Motherboard?

Nowadays, motherboards come with labels that explain what’s going on, but older models mostly have unlabeled red LEDs. In this case, you will have to remove every piece of hardware and replug them one after another to find the culprit.

On the other hand, if you have the latest motherboard, these boards usually have the four leading indicators next to the red light.

  • BOOT: Red light next to this indicator signals that the boot devices are malfunctioning, the hard drive. Specifically speaking, the operating system is stored in this hard drive.
  • VGA: Red light close to the VGA means that there is something wrong with the graphics card. It could either be impossible to detect or not appropriately attached.
  • DRAM: It indicates that your RAM card isn’t seated correctly. So, check if the RAM stick’s side clamps are not locked down on both sides. If not, then that’s the culprit behind the red light.
  • CPU: Red light next to this indicator usually indicates that the motherboard cannot recognize the CPU. It could be that the CPU or its fan is not correctly plugged in or the pins got bent, or the CMOS battery died.

How To Solve Red Light Problem On Motherboard?

You can use the following instructions to troubleshoot any boards, including the old ones with no indicators.

Note: Before doing anything, ensure that your computer is turned off and the power supply is 0.

  1. Disconnect the hardware you think is affected and replug it to ensure that it is seated properly. You don’t have to do this step if you have an old motherboard.
  2. Reset motherboard’s BIOS. For this step, you will need help from a user manual of your motherboard. Or you can visit the official website of your board’s manufacturers to get help. Another way is to remove the CMOS battery and let it rest for around five to ten minutes.
  3. If the CMOS battery is dead, you can consider replacing it to stop the red light from flickering.
  4. If none of the above steps work, simply disconnect all the hardware from GPU, hard drives, RAM, and CPU. After unplugging, check if there’s any dust over the pins or connectors. Mostly, dust and debris get stuck on the board and cause complications. If that’s the case, you can use a thin, soft eraser to clean all the pins up. It is recommended to remove all external devices, including the keyboard, mouse, etc.
  5. After cleaning everything up, reconnect all the hardware one by one and try to boot the computer. RAM and CPU are the necessary hardware. So, if you have more than one RAM module, then try booting the computer with each one connected individually.If your computer boots usually with no signs of the red light but without video, the problem is in the GPU.
  6. Now, try booting your computer without the graphics card plus one RAM stick. Hopefully, the computer will boot adequately with no red light, and you can get your GPU fixed afterward.
  7. Even after trying everything, you are still left with a flickering red light, then your board may be defective, or the power supply is dying. Sometimes, the power supply fails but still provides power to the motherboard and everything related to it.In this way, everything works, but the computer doesn’t boot up. If that’s the case, you can replace your power supply.

Bottom Line

In the end, if you are unable to detect the cause of the red light on the motherboard. The only thing left to do is connect an IT professional. He will find the issue and fix it for you because you don’t want to mess something up while fixing it. In this way, you will end up spending more money while trying to save some.

Editor Staff
TheIntelHub is the NexGen Gaming Site for Professional Gamers. We provide Expert Gamer Reviews & Tips on Gaming Monitors, Laptops, Pc, and all Gaming Gadgets.


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