The computer works the rest not - black screen, no LEDs in the keyboard and mous

Hello, I have a problem with the computer. Well, the last time I sat with him, I surfed on the net, suddenly the monitor hung up the black screen, the keyboard and the mouse was jammed, nothing could even be done to reset the computer. I unplugged it from the back and after a while I turned on, unfortunately as in the subject LEDs on the keyboard were not visible, on the mouse the same and the monitor also did not show the screen. I turned it off for a moment and turned it on, the screen showed up and turned off (just like the screensaver). It does not show me the lack of a signal. Generally, the problem became a few days earlier when I was playing the GTA 5 game. When playing the first time the monitor / screen driver had problems and as if the screen was reset, turned off and after a while turned on and reloaded. In general, I think that maybe it's a graphics card? But once I had a problem with it, and then the mouse and keyboard did not work right now. I have speculations about the motherboard or power supply. As I opened the housing, I did not feel anything "burnt". the fans are working, also the power supply (this fan at least). So far I have removed the frame and after a while I put on again but it did not help. Removing the battery from the bios did not help. As I turn off the power on the back and turn it on then I can see on the keyboard as for a moment the diodes show so nothing else. As for the sounds when I start the computer, nothing is breaking, no banging noise, etc. It is normal, as usual, to run the computer. I mentioned the hard disk 11 months ago so I do not see a problem here. And I will add that I checked whether something happened with a mouse or a keyboard, both of them worked on other devices. He gives the specifications below:

Intel Core i5-3470 QuadCore 4x3.2GHz processor
LGA1155, 6MB cache, 4x 3.2 GHz clock speed, Turbo Boost: 3.6GHz, box version with fan.
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Gigabyte GA-H61MA-D2V 1155 BOX Motherboard
Chipset H61 B3, DDR3 1333+, USB 3.0, PCI Express 3.0 x16
8GB RAM DDR3 1333MHz
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ATI Radeon Graphics Card? HD 7770 1024MB GDDR5
DirectX 11.1, OpenGl 4.2, Shader Model 5.0, CrossFireX
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Tracer Be Cool 520W Silent power supply

Yes, I read the opinions and it probably works on the power supply but I want to make sure. If so, I would ask somebody to advise you as well, because this is the first time I have such a situation.

Moderated By dt1:

The spelling of the post has been improved. Please note that in accordance with the generally accepted rules of submitting the text - we do not place any spaces before any punctuation marks. I would also ask for the use of Polish letters in all words, not just some, as will be recalled. I also allowed myself to replace the windmills in the post for fans, because it probably was not about that. The difference in my opinion is quite significant:

https://pl.wikipedia.org/wiki/Wiatrak
https://pl.wikipedia.org/wiki/Wentylator

Please take care of the correct spelling in subsequent posts.

I would start with the disassembly of the graphics card and check whether it will run on the integrated circuit.
The power supply can be guilty but it does not have to be. Give me the name of this power supply - I think it has a label and you still have to undress it

After the purchase I had a problem with the graphics card and then I gave to the allegrowicza which enveloped me and you know, then at least acted on my mouse or keyboard and here nothing totally.
Tracer Be Cool 520W Silent power supply
Yes, I know cheap shit. Now I noticed after the reviews on the net and the price of how much it costs ... But if you do not look then 3/4 years endured.

Moderated By dt1:

There is no need to quote in full the post that precedes the post of the Colleague.

And he killed the rest and he is still alive ...
Totally lack of knowledge and willingness to execute commands, so what are you looking for here without help?
In the dark, do not exchange parts any better, make some reasonable service.
It may be the fault of the power supply, but the symptoms themselves and what was before the failure points to the graphics card. And the power supply itself can also be replaced and can beat the card. But he did not have to - a lot of blackshift works fine - the problem is that it's a lottery. Therefore, they are not recommended, they often spoil together with the whole set sometimes in flames, but sometimes they work as they have and die on their own.
Remove the graphics card rather you can do it - if you do not want to try it, you do not have anything like a service because here you have something damaged on the bank.

PS power supply as you want to check it - the meter as you do not have 20PLN, I guess in the dark that it is bad but rather not enough to give such symptoms. In the event of a power supply failure, the PC does not turn on or resets or suspends. Rarely is something like yours.

In the network they say that on the electrode, it's only power supplies that have to be replaced, and as once gives another diagnosis then see you disagree

Forgive me, ok I should not be smart if I do not know, at least with someone who is a specialist. Excuse me, I listened to you and I did as you asked, I unplugged the graphics card and what? There is a picture and the rest also works ... I turned on the optimal settings as I reset the bios.

It's not about getting smart - computers are less mysterious than people think and their repair always looks the same. It makes no sense to assume or guess if in 5 minutes you can do something simple and be sure. And this is a forum - we can not do it for you
Now you know that the graphics are probably working. At this point, you need a speaker. Do you have it?
The gigabyte board should make one "beep" when the POST is finished properly.
The POST problems caused by something strange are the latest scourge. So unplug everything except the power supply, processor and cooling, and one RAM bone. Drive drives, any expansion cards, even a mouse and keyboard, and a front panel. The monitor is still connected to the board and you run the PWR pins for a moment. If it does not "beep" and there is no image, remove the RAM. Then the image can not be but it should give a sound signaling the lack of RAM. If he does not do it, we will be guilty of it in the record or the power supply. Considering the brand of the power supply will be the first to check.

PS if you have the option to borrow a power supply, check your graphics card with someone with the right equipment (mainly power supply) check RAM is worth doing because the more you check the closer you'll be the solution.

Maybe you misunderstood me, I mean that I connected the monitor to the integrated card input and without a problem the computer and the rest of the devices started to function. So I made a test and connected it again to the graphics card. It was the same as before (no LEDs in the devices and black screen after starting the computer). It turns out that it's a graphics card? And I would forget that the computer, despite these tests or resetting the computer and connecting to the input for the integrated card, did not make any sounds. Normally, as always, it fires (of course, it's quieter because the graphics card is disconnected). Currently, I have not done what you asked because maybe there will be no need after the information I gave you above, but if it's too little, I'll do it. What to check on Tuesday / Wednesday I will have an opportunity.

If this card is not working on 99%, the card is damaged. After all, it would be good now
1 measure the voltage of the power supply with the meter - it is from the black list and has its years - this prophylaxis is a brand-name one should be after 3 years.
2 Take the card and mount it in another PC (at someone or on the website). You have to make sure that it is dead and how it is rather to sell it on the allegro as a dead, describe how it died. This is not repaired, with cooling is still worth something, and repair is not profitable.

If it does not do a "beep" then you probably do not have a speaker at all.

PS and you see well I guessed rather that this card fell