Question Is my PSU cable enough for my ProArt RTX 4070 Super?

[Phantomous]

Hi guys,

Hoping to get some second opinions on powering an RTX 4070S in my system please. I'll keep it short.

Current specs:

- Ryzen 5700X3D, cooled by Arctic LF III 280
- 32GB Corsair Vengeance RGB Pro 3200MHz
- Palit GamingPro RTX 3070 8GB, undervolted + OC
- MSI MPG X570 Gaming Plus
- 2x M.2 Drives, T500 + 970 Evo
- Toughpower GF1 650W - TT Premium Edition

The question in mind:

My current RTX 3070 is powered by a pig-tailed looking PCIE cable, which splits at the top into two 6 pins with 2 pins that detach from each 'head.' Plugs into here:

https://imgur.com/a/SsK7MgJ

I've ordered an ASUS ProArt RTX 4070 Super, which uses the dreaded 12 pin adapter.
Now, my current card draws 220W, my new card will draw 220W, or so the websites state.

Am I safe to use the same pigtail cable that powered my 3070, with the 4070's adaptor?
Or, should I wait and order another PCIE cable for my PSU, rather than running the card off one?

(I plan to undervolt the card anyway, as I do with any GPU I own)

The reason I ask is because I got this PC in a trade deal and have been slowly upgrading it. It did not come with extra cables for the PSU, with it being modular. The guy lost them.

 

[geofelt]

Safe... no.
The problem with powering two 8 pin connections off a single cable is that the cable itself may get overloaded and short.
Modern graphics cards can have high power spikes, well above the nomonal power draw.

What to do:
Contact Thermaltake to see if they will sell you a compatible set of cables.
Better, yet, buy a quality replacement psu of 850w.

For whatever reason, that psu is selling for $50 or so on ebay. Even new.