Question VERY weird PC problem, shuts down randomly, doesnt want to boot without resting

Scar667

Honorable
Dec 22, 2015
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10,530
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So my problems started after I tried using some old Powerline Network Adapters. (Dont use them anymore)

Early on, my pc sometimes wouldn't want to boot up.
The fix i found for this is to disconnect the power cable and leave it like that for 10+ minutes, after I plugged it back in everything worked like normal. (I tried the same thing but only turning off the psu using its button, that didnt work)
This happened 95% of times after I turned off my pc.

This lasted for a few months.
Now a new problem has appeared. PC randomly shuts down.
I checked both CPU and GPU temps, they are both less than 60º, no viruses, no new programs, all drivers including bios are up to date.

I'd like replacing the PSU to be the last resort, any ideas that might fix this issue?

CPU - i5 7600 (Turbo off)
GPU - RTX 2060
MB - PRIME H270-PLUS
16GB DDR4 Ram (XMP off)
PSU - Cooler Master 650W 80+ Gold

Windows 10


Thanks for any ideas/help
 

Ralston18

Titan
Moderator
How old is the Cooler Master PSU? Heavy use for gaming, video editing, or even bit-mining?

Look in Reliability History and Event Viewer for error codes, warnings, and even informational events that correspond with the random shutdowns.

Start with Reliability History - much more user friendly.

====

Power down, unplug, open the case.

Clean out dust and debris.

Double-check by sight and feel that all cards, connectors/cables, RAM, and jumpers are fully and firmly in place.

====

Do you have a multi-meter and know how to use it? Or know someone who does?

Reference:

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

Any voltages out of tolerance are an indication that the PSU is a likely culprit.
 

Scar667

Honorable
Dec 22, 2015
61
0
10,530
0
How old is the Cooler Master PSU? Heavy use for gaming, video editing, or even bit-mining?

Look in Reliability History and Event Viewer for error codes, warnings, and even informational events that correspond with the random shutdowns.

Start with Reliability History - much more user friendly.

====

Power down, unplug, open the case.

Clean out dust and debris.

Double-check by sight and feel that all cards, connectors/cables, RAM, and jumpers are fully and firmly in place.

====

Do you have a multi-meter and know how to use it? Or know someone who does?

Reference:

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

Any voltages out of tolerance are an indication that the PSU is a likely culprit.
PSU is no older than 2 years and at most its used for gaming.

In Reliability Monitor it just says "Windows was not properly shut down", no more info by clicking on that.



Event Viewer also just gives Critical Kernel-Power errors.


I'll see if I can find a multimeter to check this out

Thanks
 
I suspect the PSU.
Cooler master quality is variable, and even a good product can fail.
See if you can test with a known good psu of 550w or more.
Or, consider upgrading your psu for the long term.
Look for a 750w unit of top quality with a 7-10 year warranty.
Buy from a place with a good return policy.
Expect to pay a 15% restocking fee if the psu does not fix the problem and you want to return it.
 

Scar667

Honorable
Dec 22, 2015
61
0
10,530
0
PSU is no older than 2 years and at most its used for gaming.

In Reliability Monitor it just says "Windows was not properly shut down", no more info by clicking on that.



Event Viewer also just gives Critical Kernel-Power errors.


I'll see if I can find a multimeter to check this out

Thanks

Well I replaced the PSU.
So far the first problem went away. I'll see if there are any crashes still.

Why are you suggesting specifically 750w? Does my build reach that amount?
On a psu calculator I get around 350-400
 
PSU calculators are deadly accurate, IF you know the inputs.
What capacitor ageing did you use, for example.
What is the power requirement of a graphics card upgrade you might buy in 3 years?
How much will you overclock and with what processor?
A simple chart like this is useful:
http://www.realhardtechx.com/index_archivos/Page362.htm

No harm in overprovisioning a bit, the psu will only use the power demanded of it, regardless of the max capability.
 

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