Question Can My GPU be plugged into this remaining PSU Port SAFELY?

[xxxbabyxxx]

Hello,

I have a Cooler Master 1000W , 80 Plus Platinum, v1000 Series https://www.coolermaster.com/catalog/power-supplies/v-series/v1000-platinum
The following ports are occupied on my PSU:

I'm consuming about 550W/600 maximum if all my parts were currently TDP. (generally its consuming lower)

I want to buy a ZOTAC RTX 3070 OR RTX 3060 Ti, where both still would be considered "safe" to add

- I have 2x PCIe cables remaining from my PSU above.
QUESTION: Will it be safe to connect 1 cable to the GPU, and another one for the riser, and have them both plugged into " 8p PCIe + 12v2" on top left or is that wrong/bad?
I read somewhere that "v2 is only for CPU" so I want to confirm if I can plug a GPU + Riser PCIe into those ports.

 

[xxxbabyxxx]

here's the photo full without any borders for clear view

 

[SkyNetRising]

Is your system the same as listed in your signature?

If not, then list full specs of your system.

 

[xxxbabyxxx]

Is your system the same as listed in your signature?

If not, then list full specs of your system.

No no no, the system in my signature is a different computer completely, the one i made thread off is completely different
Specs:
Intel i3-10300
2x RTX 3070
120GB SSD
8GB Ram
ASROCK H570M Phantom Gaming 4 MB
CoolerMaster 1000v 80+ Platinum PSU

 

[SkyNetRising]

And you want to add third RTX 3070 to it?

Your PSU is too weak for three stock RTX 3070. This would require 1100w to 1200w PSU.
Maybe only, if you downclock them significantly.

 

[xxxbabyxxx]

And you want to add third RTX 3070 to it?

Your PSU is too weak for three stock RTX 3070. This would require 1100w to 1200w PSU.
Maybe only, if you downclock them significantly.

Thank you for your reply,
I originally was asking around and calculated it via this: https://www.coolermaster.com/power-supply-calculator/
it said it was enough so I thought it would be power wise.

Usually i oc them and they use each around 100w, but I always take them at max tdp in calculations just incase right? and the 80% rule for PSU.. on the site it's saying that everything with max tdp is around 813watts (without underclocking them where it would make me almost 500w or so) so I thought i'd be safe at worse case scenario since i'd only be using 81% of the PSU, what do you think?