problem graphic

[Another_Blood]

I have a problem and I think it could be the graphics card, I recently mounted my new pc, the components are: 8700k, asus maximus code x, strix 1080ti oc, 32gb ram corsair vengance, nvme 960 1tb, corsair hx750.

when I play, for example overwatch resolution 2k 144hz there are moments when I freeze 1 sec, I could not describe it would be like lag type, dismantle the 1080ti and I put a 980ti to try and it does not freeze or give me failures, it could be the graph have any failure?

ps: as a curious fact that I already happened in the past, where I live there is a famous computer company and I commissioned a pc, removing transport problems, the same happened to one that I think was because the pcie was very bent literally because of a transport problem and it gave me the same failure, when dismantling the pc now I have not seen that the pcie is tilted

questions:

Is it normal for you to bend a bit by the weight?

the 980ti is just as big and similar weight as the 1080ti but I do not know why the 1080ti leans more, is it normal?

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tomorrow I will try the 1080ti in the old PC if there is a failure, if you give it as echo that is the graph and if you do not give a clue what could be