Why does my graphics card crash in games?

I have a question, I recently bought a GTX 970 because my old one just broke. I built them into my system as normal. Nevertheless, I had very bad textures in games like fortnite and co. That's why I completely refreshed my operating system. Three days ago it started to just support my graphics card in the middle of the game. I didn't think anything of it and just read my PC, yesterday and today that was again the case despite reinstalling the drivers. (Just to better explain the situation.) (Graphics card crashes both monitors go into standby one of them goes on again and hangs until both are off at the end. Strangely, this doesn't happen to me when I'm normal on the internet or something only in play.

System: Z68 Pro 3 mainboard
I5 2500k
8gb Hyper X Ram DDR 3
GTX 970

I had exactly the same problem.

For me it is overheated, I sent the PC in and it was good.

How many watts can your PSU produce?

If you mean my power supply then it was 540W

Maybe the graphics card is broken, the gtx 970 is already quite old

My old graphics card only had an 8 pin, which I have now brought 12 so I bought an adapter that was kind of strange.

I'm still checking that out

I don't know much about the power consumption of older parts, but the 970 is a power-saver and I consider that the 540W is just enough. But I can also be wrong.

Install msi afterburner and look at the temperature of your GPU immediately after a game crashes.

Sure it is really old, but still has juice in the peto.

The Graka always worked well for the previous owner.

12 oha. My gtx 1060 doesn't have 12.

but no matter in any case every pin dens has to take advantage. Otherwise it won't work anyway

But as I said, the temperature can be broken, the graphics card itself is broken, the power supply does not give any juice

maybe it just sits loosely on the mainboard but that would of course be the nicest problem

I have one thing to forget to mention, when the graphics did not show such good textures I overclocked them. But didn't help.

I hope it is due to the power supply since I have had it for several years

Well, the card is also quite old.

Lower cycle times by 20%.

How do I do that, just be careful after losing the old one.

Could it be because of it?

Load MSI Afterburner from the network and then reduce RAM and CHIP by 10-20%.

I'll do it right now, the only funny thing is that when the PC is off for a few hours, somehow these problems no longer occur

But could still be defective sometimes I have removed a graphics card and reinstalled it and it did not work properly, so read a benchmark

You can also try to turn the voltage and the clock frequency with the msi afterburner, but be careful with the voltage, preferably only in small increments

May give a tutorial on how to do this. As I said, I'm really careful

here it is explained how to overclock with msi afterburner so basically you just have to push the controls in the other direction

Yes, electronics behave strange.