How To Fix A CPU Not Detected Or Fail (STEPS) – Quick Guide 2022

How To Fix A CPU Not Detected Or Fail (STEPS) – Quick Guide 2022

In this blog post, we’ll walk you through the steps of how to fix a CPU not detected or fail. You might get a blue screen if the computer doesn’t turn on, if it powers up but shuts down, or if the computer doesn’t work at all. 

Have you ever had a problem with your CPU not being detected or failing? If so, don’t worry – you’re not alone. These kinds of problems can be frustrating and difficult to fix, but with the right tools and knowledge, they’re manageable. 

There isn’t anything wrong, so why won’t the computer start? There are some steps to take to resolve the issue.

Are There Any Signs Of A Dead CPU?

The signs of a dead processor can be seen by a computer that turns on but there is no sound or display on the screen. A dead processor can cause the computer to turn on while the fans are running at high speeds, but it can also cause the computer to go off.

The computer turns on, no screen, fans run at the highest speeds, and the screen freezes after a few minutes of turning ON.

Why Can Not I Detect My Cpu On My Motherboard?

How To Fix A CPU Not Detected Or Fail

If your processor isn’t compatible with the board, the power connectors aren’t plugged in, or the card isn’t connected to the graphics card, it’s because your board isn’t detecting the processor.

You can fix these issues by trying the solutions given below:

If you power off the computer first, you will be able to reset the CMOS. The system should be opened to expose the component.

The jumper should be changed from the 1-2 position to the 2-3 position. If you want to change it back to its original position, you have to wait for five minutes. If you want to restart the computer, you have to do it. If they are properly fitted to the slots, it’s a good idea to double-check the power connections.

If you are using a graphics card, make sure that it is connected to the graphics card of your computer. To change the bios setting to the optimized Default, you have to go to the setting. The setup should be removed and the changes saved.

If the problem does not go away, shut down your computer and restart it. It is most likely that this will fix the issue of the motherboard.

Give It More Power

You probably have a power issue if your computer isn’t turning on, no fans are running, no lights are blinking, and nothing appears on the screen. Plug your computer directly into a wall outlet you know is working, instead of using a power strip or battery backup that may be failing. 

Make sure the power switch on the back of your power supply is turned on, and if the outlet is connected to a light switch, you need to turn that switch on as well.

If you’re using a laptop, it’s a good idea to make sure your charging port is plugged in correctly and to the correct port, because only some of the ports may provide power. Even if the fans and lights are turned on, a failing power supply can cause boot problems. If the steps in this guide don’t work, it might be time to replace your power supply.

Check Your Monitor

If the computer sounds like it’s turning on, but you don’t see anything on the screen, it could be that the monitor isn’t showing an image. To make sure your monitor is plugged in, try a wall outlet instead of a power strip, turn on your monitor, and set it to the right input using the buttons on the side or bottom.

You’ll want to make sure that the cable connecting your monitor to your PC isn’t damaged, or that it isn’t at fault. If you can connect another computer to your monitor and get a picture, it’s probably the cable that needs to be replaced.

If these fixes don’t help, try plugging your PC into another monitor if you have a TV and see if Windows shows up there. If you don’t buy a new one, your monitor may be dead.

Listen For The Beep

Your computer may make a sound when it boots, which means everything is okay. If the computer is having trouble starting up, it may make a series of beeps that will tell you what is wrong.

If you built your PC yourself, you should check the manual for the PC’s board to figure out what the beeps mean. The manufacturer’s website is where you can find your manual if you don’t have one.

If your computer doesn’t chirp at all, you won’t be able to install a cheap speaker, or even a digital display with a numerical code that corresponds to an error message, because some desktop PCs have a header on the board where you can install a cheap speaker.

Unplug Unnecessary USB Devices

Before doing anything important on your computer make sure you have only plugged in what is necessary! Unplug things like webcams, external hard drives, USB headsets. You don’t want to be left with anything but a keyboard and mouse or nothing at all.

In some circumstances, it may not be the device itself, but the port on your computer. I’ve owned a PC that couldn’t get into Windows if something was plugged into the front USB port—once booted, the ports would work fine, but it needed to be empty during the boot process.

When your data is clean and the most important information has been extracted, you’re ready to start your analysis!

Reset The Hardware Inside

A component of your computer may have come loose inside the case, especially if it was recently transported somewhere or you were working inside of it. If you are comfortable opening your computer, you can remove the side panel and make sure the components are seated in their sockets. 

That also includes the graphics card, the cables, and the processor. Plug them back in after removing them completely, to make sure they click in all the way.

If the graphics card or one of the RAM sticks is faulty, you can try to boot without them.

Explore The BIOS

Certain settings may be causing a problem if your computer can’t boot into Windows but you can see the POST screen. For example, an error stating that your computer can’t find a bootable operating system may mean that your BIOS is set to boot from the wrong drive or that your settings are causing the computer to the blue screen immediately.

If the computer starts up properly but then goes to a black screen with a white blinking cursor, there is a good chance that your BIOS has been corrupted. Restarting will likely fix the issue. If you’re unsure about how to restart, try hitting Ctrl+Alt+Delete instead of F8.

You can change several settings on Windows in case a conflict exists with a recent update. If you’re not sure how to set a setting in the first place, try to Google it first. For example, try typing “How to disable fast boot” into the search bar.

If that doesn’t work, you can try to reset your bios settings with the Load Optimized Defaults option. If that doesn’t work, you should take a few photos of your settings so that you can set them back.

Scan For Viruses Using A Live CD

You may have a nasty piece of software that is preventing your computer from starting. With a live environment like Hiren’s Boot CD, you can boot your computer from a CD USB drive, and then Scan your hard drive for malicious software without Windows. 

You can download the ISO image from this page and burn it to a flash drive if you follow the instructions. The Boot menu can be accessed by pressing F11, F12, or some other key defined at startup. If you choose the boot menu, you should be able to get your drive into Hiren’s live environment.

If you head into Utilities > Security, you’ll be able to run a Virus Scan with the help of ESET and a Malware Scan with Malwarebytes. If either program discovers anything, it will let you know and attempt to fix it, which will hopefully allow you to boot into Windows once again.

Boot Into Safe Mode

Before you worry about anything else, try booting into safe mode with the steps below.

1) Restart your computer

2) When it restarts, press F8

3) A menu will come up – select the option for “Safe Mode”

4) Your computer will now reboot in Safe Mode – this mode disables all non-Microsoft services and programs

Disable All Services Except Anti-virus Or Security Software Services

How To Fix A CPU Not Detected Or Fail

To fix a CPU not detected issue, you need to make sure that only necessary services are running. In doing this, you will avoid unnecessary software from starting up with Windows and consuming valuable resources that may lead to a slower machine.

We recommend going into safe mode right away before attempting any other options if you have just built the PC or have had it for a few years! To get into safe mode, simply press F8 upon startup which brings up the following menu:

After selecting “Safe Mode” from this menu, your computer will restart and boot into a special mode where only necessary software services are running.

The Fix: You can either check which services are set to start manually or by using the Auto Start option in MSConfig. By going into different tabs within Msconfig, you can disable unnecessary programs from auto-starting up with Windows. 

Roll Back a Problematic Windows Update

If you have recently installed a Windows Update, it might have caused a conflict that rendered your computer useless. Even if you can not get into Windows itself, the option to roll back to the previous version is available.

Go back to the Troubleshoot > Advanced Options menu and use the instructions above to uninstall the updates. If you recently tried to upgrade to a new major version of Windows 10, you might want to uninstall the latest Feature Update. If you are lucky, this will get you back into Windows, which will allow you to delay Windows updates until the problems are fixed.

Check Your Hard Drive for Corruption

There are a few Microsoft tools that can attempt to fix the problem. You can go to the Troubleshoot > Advanced Options menu and choose the Command Prompt. Press enter if you want to type SFC /scannow. If Windows discovers that your drive is corrupt, it will try to fix it.

The chkdsk C: /r command can be used to do a broader search for file corruption and bad sectors.

Repair a Busted Bootloader

The data that governs Windows’ boot process is corrupted sometimes, but your Windows installation is fine. If you clone your hard drive wrong, you can try the process again, but make sure to clone the entire drive, not just the partition where Windows resides.

It can happen if you try to dual-boot Linux or create a new drive partition and mess things up. You will often get a message saying that there is an error in loading the operating system or that there is an invalid partition table. There was a system that was halted.

If you are lucky enough to be able to access the files you need to fix the bootloader on your PC, you can try to repair the bootloader using Windows built-in tools by going to Troubleshoot > Advanced Options. You’ll want to choose Startup Repair and follow the instructions there.

You can run the Command Prompt from the Windows Start menu to run an operating system command. Try opening the Command Prompt and trying to run one of the following commands:

bootrec /fixmbr

bootrec /fixboot

bootrec /rebuildbcd


It is safe to say that the issues we have mentioned are common occurrences with foolish solutions that may test your patience, but will ultimately work. If you feel like you are in over your head, you can always consult an expert, even if that means calling the manufacturer or going to a certified technician.

We hope this article has helped you how to fix a CPU not detected or fail. If you still have questions, feel free to leave a comment and we will do our best to help. Thanks for reading!

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Reggie Burton is a technology expert with over nine years of experience in the field. He has worked extensively with both large and small businesses to help them optimize their tech infrastructure and improve their overall efficiency. Reggie is known for his calm demeanor and his ability to quickly assess a situation and find a solution. He is an invaluable member of any team, and his clients are some of the most satisfied in the business.

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