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Alternate cryptocurrencies => Mining (Altcoins) => Topic started by: krazitrain on October 27, 2017, 09:06:04 PM



Title: Can you split riser connections between two PSU's?
Post by: krazitrain on October 27, 2017, 09:06:04 PM
I watched a video by someone who seem to have built a lot of rigs. He said to use only 2 of the connections per SATA cable when connecting risers.
I did that with an eight card rig, which used up the 4 SATA cable connections. However, I want to try adding one more card and use simplemining, I currently have two PSU's. Five of the cards are on THE FIRST PSU VGA connections and three other cards are using the 2ND PSU VGA connections.

This guy also said to keep the risers on one PSU. If you didn't, bad things can happen. Can you only do it this way?

Can I use one of the SATA connections and another VGA from the second power supply?


Title: Re: Can you split riser connections between two PSU's?
Post by: gt_addict on October 27, 2017, 09:55:47 PM
Keep one psu for just gpus and one to power the mobo and risers. That way if the mobo psu dies it essentially switches off the system. Mixing the connections can cause problems. Better yet just buy one big single rail psu and dont worry about connections.


Title: Re: Can you split riser connections between two PSU's?
Post by: hanskan on October 28, 2017, 05:06:14 AM
All raisers need to be on main PSU, otherwise it won't even work. Well, it didn't work for me at least.


Title: Re: Can you split riser connections between two PSU's?
Post by: rebelmalangi on October 28, 2017, 09:03:27 AM
For me , I am running 9GPUs rig and I have connected 5 Riser to Primary PSU (mobo one) and 3 riser + 5 GPU on 2nd PSU . Yes early I have connected 3 Riser on 1 Sata Cable and my cable got burned but after 1 1/2 months later, now I switch 2 Riser per Sata cable and its running fine from last 1 week.


Title: Re: Can you split riser connections between two PSU's?
Post by: abudfv2008 on October 28, 2017, 09:48:20 AM
I have rigs with 3PSU. Everything works fine. Actually it doesn't matter how them all are connected. Just do not overload.