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My computer doesn't work, after working for an entire day

Thestalost

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Mar 19, 2020
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My computer started having some problems, by randomly showding down. After working at it a little, it finally decided it had enough and stopped working completly. At this point, it was either the Mother Board or the Power Supply, as neither cooler was working.

I've decieed to go with the Power Supply, because is cheaper and it is harder for the mother board to break down. But after getting a new Power Supply it continued to not work.

After leaving the PC, without even touching it, I decided to see if it works. Than suddenly it started booting. The coolers started working, and after a few second the long beep that there are no errors was heard, but it still wouldn't start. Then the very next try it started without any problems, and now it worked perfectly.

After the day was over, I shout it down, I went to sleep and in the morning it doesn't work again, as if the Power Supply was broken. The only reason I see is either the On/Off Button or the Mother Board. Some ideas on your side?
 
Board is probably the thing giving issues. I had one do the same thing and suddenly die.
 
Its obviously tired. Don't game so hard.
Sorry I couldn;t resist.

On a serious note. I think @Toothless is on to something. Can you list your PC specs and also how old each part probably is by now?
 
Besides that stating your system's specs would be a good start.

^ this x 100 . We cant help you if you give no hardware information
 
Random, complete shutdowns are rare. If it then won't switch on, or it does without problem, makes it sound like a power issue of some type. It could be as simple as a loose lead, loose connection, intermittent short circuit on the mobo, or even OCP on the PSU.

If possible, source a secondary PSU (work, friend) and try it.
 
Re-seat CPU, RAM and GPU. Re-paste CPU. Clean fans and heat sinks, and if overclocked, revert back to stock...
 
Might be worth doing a power drain on startup to see if it boots reliably after that.
Just switch it off at the wall, hit the On button to drain the power from the capacitors in the system, and then do a normal startup after switching the power back on at the wall.
It'll be more worthwhile figuring out the cause of the startup problems, because you can test that. It's more difficult to figure out what's causing the random system shut-offs.
 
Sounds like many people on welfare in Quebec. Work a day then get too tired so go back to welfare. :p
 
Id move the pc to another circuit, get it unplugged from power strip.

Last option is to breadboard the system (minimum required parts to boot)
 
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