The computer turns on for a second, then turns off, turns on again, etc.

Hello,
I have the following problem with my computer - when I turn it on, it starts for a second and then goes completely off, then restarts, goes out, and so on over and over again.

Recently (~ a month ago) my computer turned off with a higher load, I replaced the power supply and everything was fine until now. About a few days ago the computer started behaving as described above. I figured it out a bit, I reset the cmos, took out the battery, it finally started but it gave an alert about the lack of a CPU fan. The fan spins normally, but maybe it does not signal its presence to the motherboard, so I switched it to another socket, and I connected another fan to the CPU fan socket and it was ok ... until the next day - it started to reset again when turned on, but for 3 he moved together. Now the chapel at all, it resets 20x and nothing.

What I tried (with no results):
- disconnect everything but the CPU
- cmos reset, battery removal
- starting the power supply "dry" - works fine
- disconnection of the actuation by pressing the button from the housing
- search for swollen capacitors on the motherboard - there are no.

I am asking for advice because I do not know what to do anymore: /

My equipment:
Motherboard: Asus P8P67 EVO R3.0
Processor: Intel Core i7 2600K 3.4 GHz
Graphics: Gainward GeForce GTX 570 Phantom 1.28GB DDR5 PCI-E BOX
Memory: Corsair DDR3 2x4096MB 1600MHz CL9.0 XMP Vengeance Blue
Power supply: Corsair Gaming Series GS800 800W

Did you measure with the power supply voltage meter? Check the power supply on a different board, on a different computer. To begin with, you need to determine whether the power supply is to blame or the rest.

I do not have a meter, I checked it on another power supply - the same. (chieftec 650W)

I had that on an AsRock album once. It was the motherboard. After the warranty replacement, everything returned to normal. If you can check your power supply on a different set.

I have already checked it on another power supply, so this is probably enough. hmm, well, I guess I'm waiting for a non-warranty replacement of the motherboard; / the processor doesn't break down, because they rarely break, unless it burns out. Okay, if no one has better ideas, this is the last question - if I replace the disc with an identical model, I will avoid reinstalling everything?

Check the graphics card.
Take it out and see what the effect will be.

If it is the same model then yes. Reinstallation is required when replacing the disc with a model that has a different NB and when replacing it with a different processor, because then the Elevator simply goes stupid and unfortunately throws the bluescreen as a greeting, or the computer resets over and over again.

when replacing the board with an identical model, I will avoid reinstalling everything? [/ quote]

yes you will avoid installation but it must be the same model

You'll have to reactivate the elevator

okay, i ordered a CD, if it helps close the topic.

homikro wrote:

Check the graphics card.
Take it out and see what the effect will be.

I already wrote that I checked with everything disconnected, including the card and the same.

homikro wrote:

You'll have to reactivate the elevator

Nonsense, if he has the same NB, i.e. P67, he will not have to ...

xorn wrote:

- disconnect everything but the CPU

If a pc speaker is connected and there is no noise:

chris-s wrote:

It was the motherboard.

(is)

homikro wrote:

Check the graphics card.
Take it out and see what the effect will be.

please read carefully:

xorn wrote:

What I tried (with no results):
- disconnect everything but the CPU

szabranit wrote:

yes you will avoid installation but it must be the same model

I would say - at least the producer would agree. For me, the system from nb amd stood on nb via - miracles happen.
Normally windows found and updated the reins for the new nb.

safbot1st

Piotr160292 wrote:

Nonsense, if he has the same NB, i.e. P67, he will not have to ...

Piotr160292 wrote:

If it is the same model then yes. Reinstallation is required when replacing the disc with a model that has a different NB and when replacing it with a different processor, because then the Elevator simply goes stupid and unfortunately throws the bluescreen as a greeting, or the computer resets over and over again.

As you can see I've already written this, so why are you duplicating something that has been written?

Piotr160292 wrote:

As you can see I've already written this, so why are you duplicating something that has been written?

I wrote something similar, not exactly the same, except that I am writing because I can , otherwise:

Piotr160292 wrote:

and when replacing it with a different processor, because then the Elevator simply gets stupid and unfortunately throws a bluescreen as a welcome

you write nonsense.
Replacing the processor does not require a system reinstall. Never.

Yes, explain to me, then, a few years ago, when I replaced the Celeron 2GHz with Pentium IV in my old computer, XP immediately started to sprinkle bluescreen and the problem after reinstalling the system was gone? Besides, any service will tell you that.

Piotr160292 wrote:

Yes, explain to me, then, a few years ago, when I replaced the Celeron 2GHz with a Pentium IV in my old computer, XP immediately started to sprinkle bluescreens and the problem after reinstalling the system was gone? Besides, any service will tell you that.

I return my honor - but you had an extreme case ...

and did you check if the heat sink fits well with the prock? the power supply for this board would be enough for 400-500W

maniek1720 wrote:

and did you check if the heat sink fits well with the prock? the power supply would suffice for this board for 400-500W

yes, it works well, anyway the processor does not heat up to red in a second without cooling down so that the pc turns off immediately;]
I know that it would be enough, but I prefer to buy power supplies with stock, because firstly it is known that it loses its power systematically from year to year, and secondly, it is one of the few parts that can be translated when buying a new computer, so it's better to buy "for the future".

With so much stock? Imo a slight exaggeration, but this is your business and your money spent.

well, but now you see the effects of this "power reserve", too much current is also harmful to the components, the computer must have an appropriate power supply for the components, if it is enough 400W with some low intensity, stay with it, now no wonder that the board is damaged, now when replacing the board, try to choose the right power supply when replacing the board

Moderated By jankolo:

Warning for mushy post

I doubt if the power supply was too large to cause the failure, in my opinion, the motherboard's chip-set has overheated and such symptoms as my colleague wrote are possible to check it, the disc should be rebaled and checked, but probably the next disc came out cheaper ?! as i think

xorn wrote:

yes, it works well, anyway the processor does not heat up to red in a second without cooling down so that the pc turns off immediately;]

Exactly that it heats up so much in a second without cooling that it turns off. Or it is damaged (burned).

szabranit wrote:

I doubt if the power supply was too large to cause the failure, in my opinion, the motherboard's chip-set has overheated and such symptoms as my colleague wrote are possible to check it, the disc should be rebaled and checked, but probably the next disc came out cheaper ?! as i think

Exactly, it seems the same to me.

maniek1720 wrote:

well, but now you see the effects of this "power reserve", too much current is also harmful to the components, the computer must have an appropriate power supply for the components, if it is enough 400W with some low intensity, stay with it, now no wonder that the board is damaged, now when replacing the board, try to choose the right power supply when replacing the board

Nonsense.
The power supply will not provide more power than the components will need.

With your theory, I could not test my power supplies on my platform, and I had from 300W to 620W inclusive, although the set consumes maybe 150W.
I had several of these power supplies. Of course, the brand names themselves.

Added after 1 [minutes]:

xorn wrote:

Hello,
I have the following problem with my computer - when I turn it on, it starts for a second and then goes completely off, then restarts, goes out, and so on over and over again.

Recently (~ a month ago) my computer turned off with a higher load, I replaced the power supply and everything was fine until now. About a few days ago the computer started behaving as described above. I figured it out a bit, I reset the cmos, took out the battery, it finally started but it gave an alert about the lack of a CPU fan. The fan spins normally but maybe it does not signal its presence to the motherboard, so I switched it to another socket, and I connected another fan to the CPU fan socket and it was ok ... until the next day - it started to reset again when turned on, but in 3 he moved together. Now the chapel at all, it resets 20x and nothing.

What I tried (with no results):
- disconnect everything but the CPU
- cmos reset, battery removal
- starting the power supply "dry" - works fine
- disconnection of the actuation by pressing the button from the housing
- search for swollen capacitors on the motherboard - there are no.

I am asking for advice because I do not know what to do anymore: /

My equipment:
Motherboard: Asus P8P67 EVO R3.0
Processor: Intel Core i7 2600K 3.4 GHz
Graphics: Gainward GeForce GTX 570 Phantom 1.28GB DDR5 PCI-E BOX
Memory: Corsair DDR3 2x4096MB 1600MHz CL9.0 XMP Vengeance Blue
Power supply: Corsair Gaming Series GS800 800W

How do you mount the board in the housing? Check the mass transfer on the mounting points. There should be the same brass pins everywhere. Avoid plastics.

maniek1720 wrote:

well, but now you see the effects of this "power reserve", too much current is also harmful to the components, the computer must have an appropriate power supply for the components, if it is enough 400W with some low intensity, stay with it, now no wonder that the board is damaged, now when replacing the board, try to choose the right power supply when replacing the board

I have not heard of such miracles. O_o

swiercm wrote:

How do you mount the board in the housing? Check the mass transfer on the mounting points. There should be the same brass pins everywhere. Avoid plastics.

They are brass.
Generally, for example, today the PC fired up and works all day. The problem only occurs at startup. Anyway, a new album came, tomorrow I will be editing, I took the new bulk version, it was cheap.

I changed the CD, after a few days it's ok. I'm closing.