[Solved] No image on the monitor, no "beep" of the motherboard

Hello, I have a problem with my desktop computer.
Well, a bit ago the computer worked fine, no problems. The next day I try to turn it on and the message "no signal detected" appears on the monitor. I thought it might be the fault of the monitor cable, so I plugged into another monitor with a different cable, but nothing has changed. Well then another thought: a graphics card. I replaced the old graphics card but still no image on the monitor. I also noticed that before every time you turn on the computer you could hear the motherboard beep and now you can't hear it. I would like to add that when I turn on the computer, all the fans are working (those from the GPU, CPU and case). Unfortunately, I did not have another frame bone / processor / motherboard with me to check if any of these components broke. I gave it to diagnostics and found out that the motherboard is broken. It was under warranty so I sent it to Morele.net and they sent it to the manufacturer for replacement / repair. Yesterday I got an e-mail from Morele that the motherboard has already been shipped and "The form of implementation: test ok, device is working". Today I received the motherboard, connected everything correctly and still the same problem: "no signal detected". Anyone have any idea what could be wrong? I do not know if the diagnostics was bad or they checked the motherboard incorrectly on the manufacturer's website.


Kit Specs:

Intel Pentium G840 2.80GHz processor
Vertex3D Radeon HD4850 1GB DDR5 graphics card
Aerocool VP-450 power supply
ASRock H61M-GE motherboard
Seagate Barracuda 3.5 '' drive, 500GB
GoodRam DDR3 4096MB PC1333 CL9

Remove the graphics card and frame modules, then start the computer.
How will the album behave in this situation? (what signals from bios)

I had such a problem. Remove the battery from the motherboard and let the capacitors discharge.
I put the tester on the pin from the power supply, which blinked until the capacitors were discharged and then left overnight
then the motherboard settings were reset and it was going

jaras0303 wrote:

I had such a problem. Remove the battery from the motherboard and let the capacitors discharge.
I to I touched the pin from the power supply with the tester that blinked until it discharged the capacitors and then left it overnight
then the motherboard settings were reset and it was going

What was blinking there?
As above, remove the framework, disconnect the graphics, the drives, the bios must respond (the buzzer is connected, of course), measuring the power supply voltage.

technikabasenowa wrote:

As above, remove the framework, disconnect the graphics, the drives, the bios must respond (the buzzer is connected, of course), measuring the power supply voltage.

As long as the processor and motherboard are operational, it will be like that.
To check, as my colleagues mentioned above, without memory, graphics card, drives and disks, the behavior of the motherboard. If there are no signals from the board, check the processor, correct installation and the voltage from the power supply.

mati211p wrote:

As long as the processor and motherboard are operational, it will be like that.

You're right - mental shortcut

Okay, yes, I found a speaker in the box, but as soon as I took it out, these 2 tips broke ... I heard 2 long beeps but it could have been more because my hand slipped. Tomorrow I will have access to a second computer and I will try to check another ram bone / power supply / processor and check these buzzer signals again. If I read these sounds correctly, there are only 2 possible interpretations of these sounds?
sequence: 3,3,2 - wrong bios settings
sequence: 3,3,4 - video card memory problem
It's just that the graphics card was unplugged at that time.

Try to remove this battery for a while? Need to do something else or just take it out, wait and put it back in?

Another question, i.e. if the motherboard speaks, does it mean that the processor and the motherboard are working?

Quote:

As long as the processor and motherboard are operational, it will be like that.

If you hear 3 long squeaks, try removing and reinserting the RAM (preferably only one bone), or you can make sure that their contacts are clean ( source ). Removing the battery does not always reset the BIOS, sometimes it only sustains the clock. Look for the Clear_CMOS jumper near the battery and set it from 1-2 to 2-3 for a minute or two, then set it back to where it was. Then there will be a reset of the settings. And if the CPU and the motherboard are OK, the BIOS is able to perform the POST procedure and thus it will be able to communicate with the world through the loudspeaker.

sithera wrote:

Another question, i.e. if the motherboard speaks, does it mean that the processor and the motherboard are working?

Yes, and if it was without the components I wrote about, it indicates the lack of a graphics card and memory. How do you insert the RAM and the speaker is connected, are there any sounds then? Does the integrated graphics card work?

sithera wrote:

Intel Pentium G840 2.80GHz processor
Vertex3D Radeon HD4850 1GB DDR5 graphics card
Aerocool VP-450 power supply
ASRock H61M-GE motherboard
Seagate Barracuda 3.5 '' drive, 500GB
GoodRam DDR3 4096MB PC1333 CL9

Poorly chosen elements.
Firstly. RAM - GoodRAMs are not so "good" - they like to play a trick - try to replace them with others.
Secondly - Vertex3D - problematic cards - it would be worth looking for something more stable - I bet it will fail.
Thirdly - PSU - you could put something from a slightly higher shelf (check it out)
https://www.elektroda.pl/rtvforum/topic1199202.html

JW After measuring the voltages on the power supply, do CLR_CMOS. Check all plugins. System speaker you have to permanently connected. You cannot miss your hand.

Yesterday I took out the CMOS battery for the whole night, I also moved this jumper. In the morning I tried to fire up - nothing has changed. I took out the graphics card and plugged the monitor cable to the integrated graphics card and it works oO

And I was sure that when I connected an old GeForce7300GT card that runs on a different computer, the problem did not disappear. It follows that the graphics card is damaged? In the near future, I will try to connect this card on another computer and see if it works there.

It is possible that I have a broken PCI-E input on my motherboard and they have not checked it on the manufacturer's website?

sithera wrote:

In the near future, I will try to connect this card on another computer and see if it works there.

It is possible that I have a broken PCI-E input on my motherboard and they have not checked it on the manufacturer's website?

There is such an option.
Until you check the cards / cards on another PC - you will not know.

swiercm wrote:

Secondly - Vertex3D - problematic cards - it would be worth looking for something more stable - I bet it will fail

The power supply can burn your cards, I had it, with voltage fluctuations in the network he could mess up quite well. it is especially good to check it with an oscilloscope to see if it is worth anything

jaras0303 wrote:

The power supply can burn your cards, I had it, with voltage fluctuations in the network he could mess up quite well. it is especially good to check it with an oscilloscope to see if it is worth anything

Right. However, these branded power supplies usually have their own protection against fluctuations in the mains voltage. This is what capacitors are mainly used for, but unfortunately they lose their properties over time.