Question Aurora R12 - which PSU connectors to use for vid card?

[Jackd104104]

Aurora R12 w/ 1000 watt psu. The psu connectors look like this. Please help me verify I’m using the correct connection ports to power my Rtx 5070. The card receives two 8-pin connections. Which two should I be using to feed the card? Thank you in advance.

https://www.ebay.com/itm/2856083884...MIkJzyw4HBjAMVFjUIBR2KUwIYEAQYCiABEgLCbvD_BwE

 

[Aeacus]

The 6+2 pin ones. These are PCI-E power connectors for GPU.

 

[Jackd104104]

Thank you for that. I did use the connectors that looked like that to plug into the gpu. Do you happen to know where those are supposed to connect on the other end to that PSU? What ports? Trying to make sure I didn’t grab and use the wrong 6+2 that maybe doesn’t have the same power output.

I’m having random shut downs and trying to rule out lack of power. Was thinking maybe I used a 6+2 that is connected to some lesser powered port on the PSU.

 

[Aeacus]

Do you happen to know where those are supposed to connect on the other end to that PSU?

Things get complicated with this one. 🤔

For one, PSU has three +12V rails, each at different Amperage rating.
+12Va at 42A = 504W
+12Vb at 52A = 624W
+12Vd at 16A = 192W

And i can't tell if the 6+2 pin should connect to the R1 to R6 ports, or into R13 to R16.
But isn't the connector color coded? Whereby when the other end is black, then it most likely goes into R1 to R6.

Though, i also can not tell which of the PSU side ports are which +12V rails. But that's Dell proprietary PSU for you. 🙄
Which at worst, is 200W PSU. Or at best, 625W PSU. But nowhere near the 1000W (or 912W) the label says.
One just can't combine different rails to magically increase PSU's wattage output. That alone (magically combining rails to increase PSU wattage) is something which makes me to classify such PSUs as crap quality unit.

I’m having random shut downs and trying to rule out lack of power.

I'd look towards new, ATX 3.x PSU, rather than messing with this proprietary PSU.

Good quality 750W unit is enough for RTX 5070,
further reading: https://hwbusters.com/best_picks/best-atxv3-pcie5-ready-psus-picks-hardware-busters/3/

Also, that Dell proprietary PSU is at least 4 years old as of now (Aurora R12 was released in 2021). And it's build quality can't be verified either. But this much is sure, that Dell lies on the label of the PSU.

 

[John Chesterfield]

Multi rail power supply = junk

Good quality unit with a single, strong rail is what you need.

 

[Jackd104104]

I took another look and it does appear R1 - R6 is for pci-e. The card is currently powered by R5 and R6. There are two more unused 6+2’s coming from R3 and R4. I appreciate the info about power supplies. I have to think if it’s worth messing with upgrading or just get along with my Rtx 3060ti for a while longer and replace the system. If anyone else has run into issues with RTX 50 series on Aurora R12 would love to know.