New power supply and motherboard, power supply wont turn on
With the power line unplugged, press and hold the power button for approximately 15 seconds.
Also, insure that your pc is up to date with windows updates and there are no pending updates that may anticipate windows from shutting down. you can check and instate pending windows updates following the steps below.
Anand khanse is the admin of thewindowsclub.com, a 10-year microsoft mvp (2006-16) a windows insider mvp. gratify read the entire post the comments first, create a system restore point before making any changes to your system be circumspect about any 3rd-party offers while installing freeware.
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How do i know if my power supply or motherboard is bad?
Answer: there are several signs to recognize the lousy motherboard or the mistaken power supply. your computer won’t turn on after a few attempts. then it may crash sometime. again, it can come about computer not turning on but power supply is ok due to a defective motherboard.you can see the crashed screen or any pip probe coming from the inside. at the same time, the other parts of the computer like the enthusiast, drive, memory may not succeed. even fans may stop spinning because of the interrupted power supply or poor motherboard.
Reconnect your monitor to your computer
A destitute connection between your monitor and your computer might also be the cause of your problem. in this case, reconnecting the two devices is very likely the working to your problem. here is how to do it:
How to fix - any laptop that wont turn on no power freezes or turns off at start up
The computer booted, but file system crashed
In this case, do not recreate the file system because you will displace all the facts on your hard drive.
Will a computer turn on with a bad motherboard?
Answer: without a motherboard, it is impossible to believe of starting a computer. the motherboard is the median system of the computer which runs it. so, a computer will not turn on if the motherboard goes wretched.if the motherboard fails, you can assume that your pc is also dead. besides, the wrongly spinning adherent or faulty system driver may also stand behind the default of the motherboard.

Windows computer will not boot up, start or turn on
If your windows pc won’t boot to desktop or start after a reset, windows update, etc., here are a few troubleshooting steps you can try to fix the issue.
Windows updates when i don t want it to
If you re anything like us, you set up prior windows releases so that they wouldn t install updates automatically - one forced reboot is one too numerous.
Hp desktop m01 f0016 not turning on replace power supply
My computer won’t boot after update
If your laptop is compatible with windows 10, and all your outer devices are compatible with windows 10, then you don’t have any tools issue that prevents your laptop from restarting.
Reboot after install
Once everything is installed , and your computer has restarted, go in advance and reboot your computer to complete the investiture process.
Troubleshoot a pc with no post or no display
How to install a power supply in your pc
Choosing a replacement psu can be a daunting business, but pcworld’s guide to selecting the best pc power supply can position you on the right track. another practical tool is the wattage rating listed on the side of your elderly power supply.
What to do if windows 10 won’t start after update
If your laptop is compatible with windows 10, and all your outside devices are compatible with windows 10, then you don’t have any metal goods issue that prevents your laptop from restarting.
This pc won t turn on! can i fix it? | pc repair
My hp computer won t turn on. easy fix
How do you troubleshoot a computer that won’t start after a lightning storm?
Plug the lamp into an outlet to make convinced there is power. if so, plug the device directly into a wall outlet to bypass the extension cord if all is well, substitute the power bar if ever, put in place of the power cord. computer if it still boots continually, the problem is not with the case.
Check your hard drives after a power outage
If your computer won’t switch on after a power outage, you can remove the hard drives and place in another unalike computer.