Bitcoin Forum

Hi,

I have the following infra:

> AsRock H81 PRO BTC R2.0
> Corsair HX1200i
> SAPPHIRE NITRO+ RADEON RX 580 8 GB
> Riser version 007
> Samsung SSD

Can someone please verify the following setup to connect hardware for the rig:

https://i.imgur.com/ubrgOLF.jpg

Thanking you in anticipation.

Regards,

Rizwan

Thats a good standard build. How many RX 580s do you plan on using there?

Any particular reason why you chose to 580 8GB variants? If you look at power consumption, the 580 8GBs consume more power while hashing at almost the same rate as the 570s. If you can find the 570s available, they would be a much better selection.

I would not power two eight pin connectors from one 8-pin PSU cable. Each 8-pin is rated for 150 W, running two off one cable can overload the cable and the PSU connector. I do run a 8-pin (150 W) and 6-pin (75 W) to the same card off of one 8-pin PSU cable. You can also run two 6-pin risers off of one cable.

Sapphire Nitro+ RX 580 will get 30-31 MH/s on ETH + 820-870 MH/s on DCR at ~180 W dual mining compared to the Nitro+ RX 570 4 GB that will get 28.5-29.5 on ETH + 720-750 MH/s DCR at ~140 W dual mining.

Hi Vann,

Thanks. Its getting bit confusing because someone suggested that I can use a single cable to join two RX 580/8GB GPUs and you advised not to.

Can you please let me how you can do that on HX1200i:
I do run a 8-pin (150 W) and 6-pin (75 W) to the same card off of one 8-pin PSU cable.

Note: I have 8+6 pins on GPU.

As per the diagram, I am already doing this:
You can also run two 6-pin risers off of one cable.

youre going to kill your rig or at the very least kill a piece of hardware since you have not a clue what you are doing. why not save it for the people whom know what there doing. p.s. 1 gpu is to be powered per cable, same with risers, 1 gpu and 1 riser can be powered together off the same cable depending on how many watts the gpu uses, most gpus should be okay except the ones that need extra power IE 8 pin  + 6pin input power to the gpu, do not power more than 2 risers off 1 cable, in fact as I mentioned 1 gpu and 1 riser powered together off 1 cable is what should be done. since you are soooo confused that's another sign you shouldn't be trying to build a rig especially since you clearly haven't build even a normal pc

It is generally NOT possible to power a GPU and it's riser from the same cable, as the cable length between connectors on a dual-connector cable aren't long enough.

 An RX 580 doesn't soak enough power to have an issue with overloading a single cable powering BOTH PCI-E power connectors on the card - we're not talking Vega or GTX 1080 ti power draw levels here, and dual power connectors on an RX 580 is a STUPID waste of a design anyway for that reason.