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on: January 25, 2018, 03:31:27 AM

After reviewing the cables that are included with the power supply, I think it will be able to work. It includes 4 VGA power cables so I can power 4 GPUs from each power supply. Although I may move the SSD over to the second power supply to help with the first one having to deal with the motherboard. All fans will also be ran off the second power supply as well. If I have stability issues or I'm pulling too much from one power supply. I'll upgrade to either the suggested server power supplies with break out boards, upgrade to a massive 1200+ watt regular power supply, or upgrade the EVGA 750w to EVGA 850w power supplies.

on: January 25, 2018, 01:09:44 AM

Quote from: BennyT on January 25, 2018, 12:57:01 AM On 8 1070’s wouldn’t 2 750’s be right on the edge. I pull 1250 watts from 8 x 1070’s running at 65-75 percent power. I run 2 x 850’s in my 1070 rigs. How are you powering the GPUs? What brand PSU are using? It would be nice to use off the shelf equipment, looking at these server power supplies I’m not seeing how I’ll be able to power the motherboard or other devices in the system.

on: January 25, 2018, 12:46:18 AM

Quote from: leowonderful on January 25, 2018, 12:33:09 AM The breakout boards themselves are still in stock on Parallelminer- you can opt to buy those and 6pin cables to attach onto the boards and buy the PSU separately, perhaps from eBay. It's only the complete kits OOS atm. Alright yeah I see what you mean, so any server power supply should work with the breakout boards correct? Or is there a certain type of server PSU that is required for these breakout boards?

on: January 25, 2018, 12:28:51 AM

Quote from: NameTaken on January 25, 2018, 12:09:12 AM Quote from: bigshotking on January 25, 2018, 12:05:06 AM Quote from: NameTaken on January 25, 2018, 12:02:00 AM A 1200W server PSU will provide enough power and have enough cables while being 1/3 the price of a 1600W ATX PSU. What would you suggest? I have no experience with server power supplies. Is there a specific brand that you would recommend? It would be pretty awesome to have a single power supply that doesn’t cost over $350. Check out https://www.parallelminer.com/. You can connect up to 16 PCI-E cables to a single breakout board and split each of them for 32 6+2 Pin connectors for GPU and risers. Any other sources? I’ve looked at these power supplies before while researching and they are still out of stock.

on: January 25, 2018, 12:05:06 AM

Quote from: NameTaken on January 25, 2018, 12:02:00 AM A 1200W server PSU will provide enough power and have enough cables while being 1/3 the price of a 1600W ATX PSU. What would you suggest? I have no experience with server power supplies. Is there a specific brand that you would recommend? It would be pretty awesome to have a single power supply that doesn’t cost over $350.

on: January 24, 2018, 11:34:39 PM

I see, I’m trying to keep costs down and maximize ROI but if that’s the best route to take then I’ll definitely look into ordering a single large wattage PSU. Thanks for your advice!

on: January 24, 2018, 10:20:41 PM

Well that’s good that I asked then. Thanks for letting me know about that. I’m just trying to find a good split to power all the GPUs (if it’s even possible). I’m 100% sure I can’t power GPUs with 4pin molex or SATA.

on: January 24, 2018, 10:09:19 PM

Hey everyone, I have 24 Gigabyte 1070ti cards (single 8pin power) inbound right now and would like some advice for powering 8 cards per mining machine. I have 2x EVGA 750w G3 PSUs and I’m looking for advice on how to wire everything up. Currently I’m thinking of one PSU powering the motherboard, cpu, ram, SSD, and 3 GPU + 3 PCIe risers. The second would power 5 GPU + 5 risers. Might be a dumb question but can I use the CPU lead to power GPUs from the second PSU? Right now my plan was to split the 8pin GPU and 6pin GPU leads, so one 8pin from the PSU powers the card and riser. Unless I’m able to use some molex/sata leads for powering risers (I’ve read that SATA is not a good choice though). The risers I have have three power options; 6pin, 4pin molex, or SATA. Any advice would be greatly appreciated so that I can safely power everything. Worst case is I move to 6gpu per a machine or upgrade power supplies. Thanks!

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