Question Computer sometimes not turning on or booting ?

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Ajj___

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Jun 27, 2017
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This issue is very weird to me because it was super inconsistent and is starting to feel more common now. Basically my computer turns on, boots and works completely fine, I may use it for hours, play on it, no issues at all, but, from time to time, it will simply either not boot or even power on at all.
What I've been doing to "fix" this is simply wait, turn on and turn off the computer until it eventually works, when that happens, my pc will work flawlessly (I even started simply not turning it off, but someone else at my house would do it or I'd turn it off straight out of muscle memory)

I cannot think to of exact reason for this because of the fact that when the pc eventully turns on, it works fine, so I do not know what and how to test what could be at fault.

Specs:

Mobo: Biostar B450M
CPU: Ryzen 5 3600
GPU: RX 6600 XT
RAM: 16GB
PSU: Corsair 450w Bronze
OS: Windows11
 
How old is that Corsair 450w PSU?

Original to build, new, refurbished, used? History of heavy use for gaming or video editing?

How is the computer being turned off: via the Windows Shutdown menu or are people simply physically using the OFF switch?

= = = =

What you can do:

Power down, unplug, open the case.

Clean out dust and debris.

Verify by sight and feel that all connectors, cards, RAM, jumpers, and case connections are fully and firmly in place.

Use a bright flashlight to inspect for signs of damage.

Once that is all completed reboot the computer.

Run "dism" and "sfc /scannow" to find and fix any files that may be damaged due to improper shutdowns and crashes.

https://www.windowscentral.com/how-use-dism-command-line-utility-repair-windows-10-image

https://www.lifewire.com/how-to-use-sfc-scannow-to-repair-windows-system-files-2626161

Determine if the computer will consistently turn on and boot properly.

If not, then there are still other things that can be done.

Overall, the PSU is a likely culprit but more information will be needed.
 
AMD recommends a 500 watt PSU with that GPU. Still, given the rest of the system components you have listed, 450 is probably enough - depending on the vintage of the PSU.

Still, something isn't working and @titan has given you some excellent suggestions.
 
Ralston18 said:
How old is that Corsair 450w PSU?

Original to build, new, refurbished, used? History of heavy use for gaming or video editing?

How is the computer being turned off: via the Windows Shutdown menu or are people simply physically using the OFF switch?

= = = =

What you can do:

Power down, unplug, open the case.

Clean out dust and debris.

Verify by sight and feel that all connectors, cards, RAM, jumpers, and case connections are fully and firmly in place.

Use a bright flashlight to inspect for signs of damage.

Once that is all completed reboot the computer.

Run "dism" and "sfc /scannow" to find and fix any files that may be damaged due to improper shutdowns and crashes.

https://www.windowscentral.com/how-use-dism-command-line-utility-repair-windows-10-image

https://www.lifewire.com/how-to-use-sfc-scannow-to-repair-windows-system-files-2626161

Determine if the computer will consistently turn on and boot properly.

If not, then there are still other things that can be done.

Overall, the PSU is a likely culprit but more information will be needed.
Click to expand...
I opened the computer completely one of the times it didnt boot, I did a clear cmos, clean, new thermal compound and etc, all good and no changes.

I've run dism check health and restore health and scannow, dism showed no errors but I ran the RestoreHealth anyway. Scannow found corrupt files, I rebooted the system with no issues once after that, but I'm not turning off the pc while I'm still using for work (everything is backed up and secure, but my PC is still the best one for work, so I try to hold on for more).

I had a older PSU for my system which stopped working, I'm using this current corsair PSU since 2019, I used to use this PC for around 4 hours a day, from 2021 I starting working at home with it and using it for 8 to 12 hours a days, so I guess it has been under a load from games and work since them.
I do agree with the PSU being could be the issue, but wasn't the system supposed to show some kind of failure while the system is running if it is a power issue? I still play and work underload normally for over 8 hours a day and the pc never shutdown randomly, no bsod, I also always shutdown it properly through the windows menu.
If the issue could be the PSU even though, how can I properly confirm that?

I'll get a new computer from work to keep working, once I have that I'll make more tests to see if my system is booting up consistently.
Thanks for the response.
 
This:

"but wasn't the system supposed to show some kind of failure while the system is running if it is a power issue"

Remember PSUs provide three different voltages (3,5, and 12) to various system components.

If any of the voltages go out of tolerance then that is when problems occur. And it may be too late to capture the voltage failure to even warn or report it.

Two ways to check:

1) If you have a multimeter and know how to use it (or know someone who does) then the PSU's output voltages can be checked. Not a full test because the PSU is not under load. However any voltages out of tolerance make the PSU a likely culprit.

FYI:

https://www.lifewire.com/how-to-manually-test-a-power-supply-with-a-multimeter-2626158


2) You can look in Reliabiiity History/Monitor and Event Viewer for error codes, warnings, and even informational events.

Improper or unexpected shutdowns are a sign of a failing/faultering PSU. Likewise increasing numbers of errors and varying errors is another sign.

A four year old (2019) PSU may indeed be nearing its designed in EOL (End of Life). All the more so if the PC's wattage demands were constantly maxed toward the rated wattage of 450 watts.

Use 2 or 3 PSU calculators to work out the applicable wattage PSU for your build.

https://www.tomshardware.com/reviews/best-psus,4229.html

Note: if any component uses a range of wattage values - use the high end wattage.
 
Ralston18 said:
This:

"but wasn't the system supposed to show some kind of failure while the system is running if it is a power issue"

Remember PSUs provide three different voltages (3,5, and 12) to various system components.

If any of the voltages go out of tolerance then that is when problems occur. And it may be too late to capture the voltage failure to even warn or report it.

Two ways to check:

1) If you have a multimeter and know how to use it (or know someone who does) then the PSU's output voltages can be checked. Not a full test because the PSU is not under load. However any voltages out of tolerance make the PSU a likely culprit.

FYI:

https://www.lifewire.com/how-to-manually-test-a-power-supply-with-a-multimeter-2626158


2) You can look in Reliabiiity History/Monitor and Event Viewer for error codes, warnings, and even informational events.

Improper or unexpected shutdowns are a sign of a failing/faultering PSU. Likewise increasing numbers of errors and varying errors is another sign.

A four year old (2019) PSU may indeed be nearing its designed in EOL (End of Life). All the more so if the PC's wattage demands were constantly maxed toward the rated wattage of 450 watts.

Use 2 or 3 PSU calculators to work out the applicable wattage PSU for your build.

https://www.tomshardware.com/reviews/best-psus,4229.html

Note: if any component uses a range of wattage values - use the high end wattage.
Click to expand...
Interesting, thanks for the quick response.
So I checked the Reliability monitor and it shows a bunch of "windows was not properly shut down", by the timestamps I can see that they're all from the times that my PC didn't boot so I forced a shutdown. I guess this combination plus the fact sometimes when my PC won't even power on are good indicatives that my PSU is at fault here.
I can get a PSU just to swap and make tests just to make sure before buying a new one.
Thanks once again.
 
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