Dell Precision Tower 5810 rtx 3070

@Erickson It is unlikely that your Dell Precision Tower 5810 with a 685W power supply can support the RTX 3070 without upgrading the power supply. The RTX 3070 requires a minimum power supply of 650W with a 8-pin and 6-pin power connector.

If you don't want to upgrade the power supply, you may want to consider a GPU with lower power requirements. A GTX 1650 Super or GTX 1660 are some options that may be supported by your system.

You can find a 6 pin to 8 pin adapter at Amazon here. The PSU should be fine at 685W.

the power supply is fine, you just have to change the cable. Take the model with dual output with 8 pins each. I did it for my T5810 and T7810 where: the first has 2 GPU cards mounted and the second 3 GPU cards. Naturally, given the type of cards I use, I replaced the PSUs with superior models. Now my T5810 has an 825W PSU and my T7810 has a 1300W PSU.
I also have a T3600 with a 625w PSU and have two GTX 1080s mounted and running.

The RTX 3070, which I had on T7810 together with an RTX 3060 Ti, consumes 220W and can be powered very well on a 16x PCI Express socket with connected connectors

I have a T7810 and trying to run an Auros 3070. I also can’t post but running an 8 pin splitter. I have a 825 psu. Is the 825 psu adequate?

Hey there,

I have this challenge too.

My config = T5810 + E5-2680 v4 + 64 GB + RTX 3070 ti + 1 SSD for OS + 1 SSD for Storage + 685 PSU.

My machine came with the cable 0D92C9 - so 8 Pin connector on the PSU side of the cable, considering Pin arrangement according the PSU breakboard - Pins 1, 2, 3 yellows, pins 4, 5, 6 blacks. On this connector Pins 7 and 8 are empty, no wires. On the Breakboard, has all the 8 pins in the PCIe connector. The cable is divided into 2 x sets of wires, each with 3 yellows and 3 blacks, and respectively 6 pin connectors in each tip.

Theoretically, It should work by adding adapters to each tip, converting each into 8 pin. I've been reading about people who claim it works. A few other people talk about Rails and so on... In my case, so far it didn't work with one of my GPUs.

Because I'm not so sure about the GPU, which I sent for repasting and vBIOS check. When I get it back I'll test again with the same configuration. If it doesn't work, the Plan B, which has already been tested, consists of adding a mining PSU kit, in this case a 750 watt with 12 x 6 pin layout, sync-wired to the Sata Power cable from the CD-Drive. It senses and powers up the secondary PSU at the same time with the rest of the setup. Removed the small plastic cover near the CD-Drive, so I'm able to pass all the cabling through.

But it anyone was able to overcome the challenge, please advise.

By the way, yes it's an old machine, but I'm starting to think about buying another one. Just love it!

Thanks in advance

last configuration in use that I did on the 5810 and 7810:

• Dell 5810: 825W power supply, with RTX2080 and RTX2060 super both founders Edition. 6pin + 8pin cable for 2080 and 8pin cable for 2060 connected to the SATA power connector.
• Dell7810: 1300W power supply, with dual Quadro RTX4000 SLI connection and one RTX4060. 8pin + 8pin cable for the two RTX4000 and 8pin cable for 4060 connected to the SATA power connector.