No image from the monitor when the computer is started (no signal from the scree

Hi. As in the subject: recently I have a rather troublesome problem when starting the computer. Namely, sometimes (it happens completely randomly) when the computer is turned on, the monitor does not respond at all (ie only the note about the lack of a signal is displayed). The computer probably turns on normally (without a picture it's hard to tell). At the beginning I disconnected and connected the plugs from the monitor and those from the power strip. It helped, but after each reboot the situation was repeated. Then I opened the computer, cleaned the interior and podociskałem all plugs. After that, the computer and the monitor were running fine for almost two weeks (and the restart did not spoil anything), but today again something did not fit the monitor, because the situation was repeated. Connecting and disconnecting cables from the monitor this time did not help, but re-plugging the pins on the computer again fixed the case (and for now after three reboots everything is ok). Recently also the computer is working really badly, and the mouse / cursor sometimes goes crazy, but I do not know if it has any connection with this launch. I would be very grateful for any information, which may be wrong with my computer. Thanks.

I do not know if the computer specification will be needed, but in case of:
Windows 10
GTX GeForce 1060 6GB
Intel Core i7-4770 3.40GHz
16 GB RAM
Monitor - 2D FHD LG TV-4
Motherboard - ASROCK H81M-HDS
Power supply - SSeasonic S12 II Bronze 520W - The power supply and graphics card are very new, because they were bought literally 2 months ago, so probably they are not the problem.

Hello

hmm First check the monitor documentation with the maximum resolution your monitor can work on. Enter the emergency mode of the system key F8 and switch to resolution eg 1024x768 --- Advanced settings >> Monitor >> Screen refresh rate at 60Hz and confirm with OK. restart the PC and the computer should start and you can change the resolution to a higher one such as the Monitor.

The power supply computer does not have? Give the model and brand.
Measure with a meter, replace it with another branded one
In the monitor in its power section you can have dried, cracked capacitors.
Replacing them will help the monitor to turn on (give the model), but not the start of the motherboard.
Swap your monitor for another 100% efficient - you'll find out if it's a motherboard. does not start.

Added after 2 [minutes]:

@ kiss39 He does not turn the monitor on completely. Even the windows logo can not be seen (so I understood):

AksmaitnyGrzmot wrote:

The computer probably turns on normally (without a picture it's hard to tell).

Not hard at all. Connect the system buzzer and remove the GTX GeForce 1060 6GB.
Squeaks?

AksmaitnyGrzmot wrote:

I do not know if the computer specification will be needed

It is needed, but also fill in the model plate and the brand / model of the power supply.

AksmaitnyGrzmot wrote:

The computer turns on normally

I do not think so.
Fill in the missing data, it is also worth to include the screen with HWinfo (sensors-only tab) so that all tabs are visible.

Next - check the voltage of the CMOS battery. Reset CMOS and restore default settings.
It's even the hard drive that can block POST or any other component, even the mouse or keyboard.
Provide SMART with the Crystal Disk Info program.

safbot1st wrote:

Replacing them will help the monitor to turn on

Rather, the monitor turns on, displays the message "no signal"
I would look for reasons in the PC itself. Unless a damaged signal path in the monitor.

Right @kokapetyl

AksmaitnyGrzmot wrote:

(ie only the note about no signal is displayed).

Pretty power-hungry set. I wonder what power supply? It can be a "perpetrator".

kiss39 wrote:

Hello

hmm First check the monitor documentation with the maximum resolution your monitor can work on. Enter the emergency mode of the system key F8 and switch to resolution eg 1024x768 --- Advanced settings >> Monitor >> Screen refresh rate at 60Hz and confirm with OK. restart the PC and the computer should start and you can change the resolution to a higher one such as the Monitor.

The monitor can work in a maximum of 1920x1080 (this is recommended). I never switch to any lower or higher. And this emergency mode can work at all with the lack of a monitor signal when the computer is started (in the sense of whether anything appears to me on the screen)? Because, for example, now I am ok, I do not see the point in changing the resolution.
And so, by the way, I also restored the BIOS to the default settings, because some on the net wrote that it could help, but I did it with these earlier problems, so as today again blew me a monitor, it probably did not help.

safbot1st wrote:

I wonder what power supply? It can be a "perpetrator".

The question has already been asked, we are awaiting the author's response.

kokapetyl wrote:

safbot1st wrote:

I wonder what power supply? It can be a "perpetrator".

The question has already been asked, we are awaiting the author's response.

I have already updated the specification. The power supply is SSeasonic S12 II Bronze 520W. Practically nówka, because exchanged less than two months ago.
Added after 5 [minutes]:

kokapetyl wrote:

safbot1st wrote:

Replacing them will help the monitor to turn on

Rather, the monitor turns on, displays the message "no signal"
I would look for reasons in the PC itself. Unless a damaged signal path in the monitor.

Specifically, I turn on the monitor after turning the power supply on to the back of the computer (before launching the system - LG pops up, no signal, etc.), and after starting the computer it just pops up again "no signal" instead of the mainboard logos and Windows logo, and so it turns on, but the monitor does not respond.

AksmaitnyGrzmot wrote:

it just pops up again "no signal" instead of the motherboard log and Windows logo, and the comp as if it turns on, but the monitor does not respond.

This is probably a problem that does not turn on properly.
The problem may be with the graphics card, with connecting it (also with the connection / cable)
Check another tab / integrated (if any).

kokapetyl wrote:

AksmaitnyGrzmot wrote:

it just pops up again "no signal" instead of the motherboard log and Windows logo, and the comp as if it turns on, but the monitor does not respond.

This is probably a problem that does not turn on properly.
The problem may be with the graphics card, with connecting it (also with the connection / cable)
Check another tab / integrated (if any).

It just seems to me that there may be something with the cord. And replacing it with another card, or switching to the one integrated with the prock, probably will not do anything since now the computer can start correctly for up to two weeks (because so much has passed since the last 'failure' with the monitor), so after switching the card and yes I will not know if anything has done it at all.
The monitor cable also connects to the computer via an adapter - I do not know if it matters.

AksmaitnyGrzmot wrote:

the monitor cable also connects to the computer via an adapter - I do not know if it has any meaning.

In the previous statement I have already paid attention to the connection, it can also have an impact.

kokapetyl wrote:

AksmaitnyGrzmot wrote:

the monitor cable also connects to the computer via an adapter - I do not know if it has any meaning.

In the previous statement I have already paid attention to the connection, it can also have an impact.

How can this affect this example? The adapter is also relatively new and I did not have anything to do with it, it is not damaged, etc. I just do not know what the problem may be because I do not recall doing anything with the computer, which could trigger it. Just from day to day the monitor began to fail.

AksmaitnyGrzmot wrote:

Just from day to day the monitor began to fail.

AksmaitnyGrzmot wrote:

Practically nówka, because exchanged less than two months ago.

Something "real" there you remember. Why did you replace the power supply and what was it before? The problem was on the old power supply too?

AksmaitnyGrzmot wrote:

GTX GeForce 1060 6GB

What is the company of this card?

Describe the cable connection you used to connect Monitor GTX 1060 graphics card with all adapters and adapters.

310artur wrote:

AksmaitnyGrzmot wrote:

Just from day to day the monitor began to fail.

AksmaitnyGrzmot wrote:

Practically nówka, because exchanged less than two months ago.

Something "real" there you remember. Why did you replace the power supply and what was it before? The problem was on the old power supply too?

I do not remember the completely old model of the power supply, and the reason for the replacement was simple - old, would not drag a new graphics card. And on the old power supply there was no such problem, but on the other hand not on the first two months.

"The computer turns on normally." The HDD LED flashes?

kokapetyl wrote:

Check another tab / integrated (if any).

I was supposed to write and I forgot. It is integrated. I advise her to use it @AksmaitnyGrzmot .
So what if the colleague Velvet can not recognize whether he is turning on the computer or the monitor:

AksmaitnyGrzmot wrote:

the monitor began to fail day by day.

Stand the other monitor and after the topic. Use the "socket" to connect the monitors on the motherboard and the PCI-E card remove . Two birds on one stone, because we will never get there, if you turn on the computer at all.
The fan in the power supply and on the CPU are spinning ??? P