What To Do If Your PC Won’t Boot But Motherboard Lights Up

Here is how to fix “The motherboard Lights up But Won’t Turn On”. You must feel frustrated when you see that your motherboard is lit up, but it won’t turn on.

However, if your computer won’t boot at all, it can be tough to know where to begin the repair process.

I’m here to offer advice that may help you figure out why the motherboard lights are on but the computer won’t switch on. I’ll you the greatest advice on how to handle this situation.

Why Isn’t Your PC Turning On While the Motherboard Is Lit Up?

When the motherboard light on your computer is on, the PSU is powering the motherboard.

Many LEDs on most motherboards are frequently illuminated under specific circumstances to signal internal faults.

For instance, a red LED on your motherboard typically denotes faulty internal hardware or issues with improper plugging.

Additionally, a dead CMOS battery may also be the cause of the error.

  • I’ll now outline the error’s step-by-step diagnosis process. The following guidelines must be followed before applying.
  • You should first unplug the power cord from your computer before inspecting it.
  • The switch headers must then be linked to the PC case’s power button, which must be verified.
  • The majority of the time, wires connect them. And you need to take out the wire to fully separate them.
  • After that, you might open your case to gain access to the interior parts.

You can now identify the mistaken step by step.

What To Do If Your PC Won't Boot But Motherboard Lights Up

Examining the Motherboard That Won’t Turn On?

To diagnose the mistake, you must consider several aspects sequentially.

In general, you must adhere to the repair advice as well. Let’s investigate the specifics.

Examining the PSU

Make sure the 4/8 CPU power wires and your 24-pin motherboard are connected.

Then, you must examine your PCIe hardware, including your GPU and SATA.

The next step is to carefully detach and reconnect each component, testing each one to see which one is the problem.

The power supply can be broken if you’ve tried everything and still can’t view component status LEDs.

The fan has a fault.

You must determine whether or not the fan is rotating. Or whether or not the links with the supporters are true.

Poor Fuse

Another potential cause for why your computer won’t switch on even though the light is on is a blown fuse.

Additionally, the extra wires from your CD-ROM drive may prevent your computer from turning on.

Having trouble booting

If the computer takes a long time to boot up, there can be a problem.

Defective Power Button

The broken power button is one of the most basic causes of your computer not turning on.

Therefore, you must check the power and reset buttons on the front panel. Do you see anything? Are they lost or misplaced?

Inadequate Power Source

If your computer is receiving power even though it is insufficient to keep it running, an error could happen.

Fixing the Motherboard Lights Up But Won’t Turn On?

To solve a problem, you must first recognize it. I hope the discussion above has assisted you in identifying it. You will now receive the answer by:

Fix your Pc   👇👇

Examining the IC Fuse

Check the PSU to see if there is any short-circuiting. To replace that specific IC fuse, you must identify it.

Then you should unplug any other drives, such as CDROMs, and properly reconnect all cords.

The PC Power Button’s repair

If the power button turns out to be damaged after you’ve checked it, you’ll need to replace it.

The CMOS Battery.

Then, if the complementary metal-oxide-semiconductor (CMOS) battery is found to be faulty, you can swap it out for a new one. Alternately, wait 30 minutes and then reinstall it.

Bringing Back Memories

The memory can be reseated. A computer that has poor memory might not turn on.

If the problem persists, you should examine the RAM. If the Motherboard lights are on but the computer won’t boot, you should reinstall the RAM and give it another shot.

Combine the RAM and CPU into one slot if your computer hasn’t already powered on. The cooling facility should be used concurrently.

Problem with the New GPU

Your GPU may be the cause of the error if you recently installed a new GPU. You could try turning on your computer without the GPU.

Getting Rid of Corrupt Files

Your PC might not be turning on due to corrupt files or bad driver loaders. You can reinstall your operating system by using an external bootable device.

Hopefully using the probable causes listed above, you may solve your issue.

 Q and A

How Can I Make a Motherboard Turn on Suddenly?

Most motherboards rely on the case switch to turn on the computer because they lack a power switch.

The header pins must be connected to the proper power switch to turn on the motherboard outside of the computer casing.

Without a CPU, will the motherboard power on?

This question lacks a definite response. Depending on the model you are currently using, it will change.

While some motherboards can be started, others cannot. If your motherboard doesn’t have a BIOS flashback option, there’s a chance it won’t turn on without the CPU.

Final thought 

Therefore, before I go any further, I’d like to advise you to try the cheapest solution to fix the problem before hiring a specialist and spending extra money.

You can now solve your issue quickly according to the advice by doing as follows.

Related Article: 

Why Does My Computer Shut Off After 2-3 Minutes (Explained)

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