Hello, what do you have connected besides the cpu? Have you checked the RAM? The PCI-E slots? The graphics card, since it starts but does not give you an image?

I have everything connected, except gpu. I try removing all the RAM slots?

As you said, you have reset the BIOS, I understand that if you can enter the bios, right? Try booting with just the processor and a memory module, unplugging everything else including the graphics. Can you try another graph? Or connect the graphic on another PC?

Don't forgive me for explaining badly, I can't even access the bios, the pc doesn't beep or show anything on the screen. What I did was move that jumper on the cmos motherboard, changed 5 seconds and left it as it was, that's what I meant by resetting the bios.

Hello, regarding the reset you may have to remove the battery from the motherboard for a few hours to make sure. And about the boot, try, as I said, to boot only with cpu and memory.

Ok, it's already solved, I've tried removing the RAM modules and it started with a beep. I have cleaned the modules and installed again and it starts
Thank you very much for the help.

I'm glad, sometimes the solution is that simple 🙂

Follow these steps, you can find the fault.

First touch the metal box to remove any static that has built up on your body.

Unplug the power cord from the back of the power supply. Also disconnect keyboard, mouse, speaker cables.

Reset the motherboard, there should be a reset button (jumper) on the motherboard. Or just take out the battery and put it back. See your motherboard manual for further instructions.

Carefully remove all parts of the motherboard, leaving only the CPU and fan. Next, disconnect all the cables (ie HD, DVD, case, etc.) connected to the motherboard except the power cable and of course the CPU fan.

Now add the graphics card, make sure it sits in the slot correctly.

Now add only 1 memory card to slot 1. Make sure you insert it the right way. There is a guide on the bottom of the card to help you if you notice that one side of the metal connectors is longer than the other side. You should hear a click once you insert it correctly. Now add the second memory card to slot 2. You can save the third one for later.

Now connect the main power cable to the back of the power supply and connect the monitor cable to the graphics card. Make sure the monitor is turned on.

Now it's time to power on the motherboard, either by pressing the internal power button located on the motherboard or by locating the power switch cable coming from the front of the case and connecting it to the motherboard jumpers ( may be labeled PW or PWR).

The screen should show the BIOS screen. If it does, that means these parts are not the cause of the failure. If not - part 2

So what you need to do is turn off the power and add the parts one by one to the system. Every time you add a part or connect a cable, turn on the system to make sure it works.

Basically this is a way to find what is causing a blank screen.

........................................................... ...................................................
PART 2 (still has blank screen)
........................................................... ...................................................

Unplug the power cord from the back of the power supply. Also unplug the keyboard, mouse, speaker cables, etc.

Carefully remove all parts of the motherboard, leaving only the CPU, the fan. Then disconnect all the cables connected to the motherboard.

Very carefully unscrew the motherboard and remove it from the case. Place it on top of the motherboard cage, with the antistatic bag underneath.

Now add memory to slots 1 and 2 as before. remember to click when inserting it. Next, add the graphics card, make sure it sits in the slot correctly. Now connect the power cables from the power supply to the motherboard.

Now connect the main power cable to the back of the power supply and connect the monitor cable to the graphics card. Make sure the monitor is turned on.

Now it's time to power on the motherboard, either by pressing the internal power button located on the motherboard or by making a metal contact with the motherboard's power jumpers (may be labeled PW or PWR).

The screen should show the BIOS screen. If it does, that means these parts are not the cause of the failure, it could be that you didn't install the motherboard into the case correctly.

However, if the fault still exists, it means that it could be the CPU, graphics card, memory, or motherboard that is causing the fault.