8 pin

I have a new 9070 xt but the cables to my power supply are a little short. I have two types of 8 pin extensions and neither fit. The card looks like this. The ones I bought (two types) both look like this. I bought them assuming they were all alike. Is there a specific name for the...

I have .an AMD Radeon 7900 XT and a 1,000 Watt Rosewill RBR1000-M PSU with connectors being from the PSU itself of 6+2 Pin & 6 Pin Cable which I use a 6 Pin to 8 Pin Converter (the GPU requires 2 8-pin Cables).. (Image 1 - Current Cable Hook Up) My issue is that my computer crashes when I: -...