[SOLVED] What PCI slot do I have?

[WinDroidTech]

So before buying a graphics card, I was looking for what PCI slot I have whether it's PCI-E or 4 or 8 or 16
I searched online and got confused in the results. As far as I can think it looks like it's a PCI 4 slot. Please guys have a look at this images and tell me what is the slot. Thanks in advance

IMG1-https://ibb.co/ygKP6L8
or https://i.ibb.co/TPJ24zH/IMG-20191128-200041.jpg

IMG2-https://ibb.co/JCBnC2Z
or https://i.ibb.co/4JmWJMk/IMG-20191128-200041.jpg

IMG3-https://ibb.co/wz00JQX
or https://i.ibb.co/S3ssQm8/IMG-20191128-200108.jpg

 

[DSzymborski]

This is for my old PC. So I don't care that much about efficiency, I don't want to play Red Dead 2 here, just make the PC faster and make it video watchable and play small game(released before 2010)

I just want to make sure that it physically fits into my PC maybe at reduced bandwidth.

Before you buy any GPU, you need to know the PSU and the PSU's quality. Not to help you play Red Dead 2, but to keep your PC from being red dead.