Sapphire Nitro plus Rx 570 with 8 pins and 6 pins

[twofreckles]

I'm just wondering. These cards has connection through 8 pins and 6 pins. However it says 6 pins is "optional". I have unplugged that. The power drain is exactly the same. The gpu is running stable. Are there any downside of such solution?

[italianMiner72]

I'm just wondering. These cards has connection through 8 pins and 6 pins. However it says 6 pins is "optional". I have unplugged that. The power drain is exactly the same. The gpu is running stable. Are there any downside of such solution?

if you have free power supply cable, use all 8+6 connectors.
this help power supply and gpu to use lower power on the 2 power lines.
usually, is more safety