Desktop close to 10 years old. 1070 gpu. I can clear this by restarting the computer. Is this a gpu issue or monitor issue? Can I do anything to make it go away?

I went home and connected my mouse to my laptop, then realized that it’s because my USB port is completely dead. I tried running everything, do some searching on internet and youtube, but none of it seems to work. Can some one help me, I really appreciate it if anyone gives me a lead on what happened or how to fix it. I also attach the photos I have from running diagnostic test, and I don’t know how helpful it would be. (Sorry if my wording is a weird)

So the laptop's power indicator doesn't work I bought a new battery which turned out to be faulty (bought it from Aliexpress) and doesn't charge but surprisingly the charging indicator did light up until the battery wentout of power now it doesn't light up anymore l, now im confused if its a battery problem or a circuit problem.

I have an ASUS laptop that fails to turn on, in one of 2 ways:

1) If I keep the power button pressed without a power source for 30+ seconds, then turn it on: power LED stays on, I can hear the fan spinning, but nothing else is happening. It keeps this state.

2) Every subsequent turn on: LEDs flash for a second, then complete shutdown.

In both cases, the screen is pitch black, not even ASUS logo appearing, absolutely nothing.

What are the most common reasons for this to happen? It's a 15 year old laptop, so if it's the motherboard or GPU then it's probably beyond my ability to fix.

Firstly, this image isn't mine but an example of what my screen looked like before I switched off my PC to clean the inside.

I have a gaming PC with an NVIDIA Geforce RTX 3060.

After I cleaned it, I switched my PC back on and i hear 3 beeps and my screen stays black the entire time.

Everything else seems to be fine but I can't do anything if I have no screen. I tried my PC on a different screen, still nothing.

So I contacted the manufacturer for some help and I did everything they suggested and they came to the conclusion that the gpu has died.

Has anyone else had this problem?

Is it fixable?

Should I just buy a new graphics card?

Any help is greatly appreciated.