my old 650 watt power supply has a different 8pin connector then my new Radeon RX570, can I use EVGA Dual 6-Pin Female to 8-Pin Male Cable to connect it?
The "different" 8-pin connector is probably a 12V connector for the mainboard. So don't force it on. You can use the EVGA adapter but make sure you get the proper male\female setup.
Thanks for fast response, I only had one option and when it did not go on I did not force. I was also confused by the abbreviation EVGA, some blogs warned about it should I be concerned?