First of all: my PC is about 1 year old and I have an RTX 2070 and an i5 9600k (16GB 3200MhZ Ram) - for a few weeks I have had a problem with my PC at least once a day. Without warning, my screen suddenly goes out and there's no picture anymore ("No signal" is displayed: DP cable) - However, my PC remains on and my fans run extremely high (PC much louder than before, i.e. Before the picture went away) . This state remains for a while until I switch off the PC and restart. After restarting everything works fine again and the values of my CPU and GPU are completely normal. As a little side info: I usually play Fortnite at a higher level, which requires quite a bit of performance - it is striking that this error only occurs when I'm playing Fortnite. This error has never occurred while I was doing something else.
What comes to mind so spontaneously is that the card may be too heavy and is no longer properly in the slot. Had a similar problem with my 5700XT (which is HUGE). Lying the computer down on the floor then fixed that (so that the card in the slot was up). When it turned out that this was the problem, I bought a graphics card support. Since then, the computer has been running without suddenly falling graphics.
If putting the computer down doesn't solve the problem, it could also be a power supply problem, especially when it happens under load. Power supplies from non-brand manufacturers are usually not as robust and can give up the ghost more quickly.
Many often underestimate that many graphics cards draw a lot of electricity. Then you use it and if the load is correct it makes a> PLOP
This is very unlikely, because I have a top power supply: Bequiet 550 watts - the wattage should actually be enough: it will be difficult to test, because there's no guarantee that more watts will not cause any problems
This is exactly the superstition that many represent. With a RX 5700 XT it is better to use a 750 Watt NT than to work with a weak 550W NT.
The error you mean that you have occurs precisely because of it. Your NT simply buckles under load. One or more tensions drop briefly, enough time for the Hhomework to crash. When you restart again everything is as normal because you have less load on the NT.
I've already destroyed a lot of 500 or 550W NT with my RX 5700XT.
For a normal RTX 2070, a high-quality 550 watt power supply should be sufficient, since the card also draws significantly less power than the RX 5700 XT.
Only the RTX 2070 Super with 220 watts has a similar power consumption as the RX 5700 XT.
