Usually Server PSU-s do not have all the required PCIE express connectors to make a mining rig for lets say 5 GTX 1080 ti or 1080. They have the power to support it as they are really powerful but they are missing PCIE express connectors, they usually have only 2-4 maximum and since 1080 needs one 6 pin and one 8 pin connectors the maximum a HP 1200 watt can handle for example is only 2 graphic cards. I am not that knowledgeable but I have seen these kind of PSU at my work so I believe I am correct here.
To comment on this - server PSUs are generally built to plug into a server backplane, and thus have zero PCIE connectors of their own. That's why some of us here build and sell breakout boards that convert the proprietary backplane connector into something usable, usually with anywhere from 6 to 30 PCIe jacks depending on the specific configuration. On top of that, cables can be had which convert one 6-pin to a 6-pin and 6+2 for powering a GPU. I've put together kits in the past for someone to run a PicoPSU and seven GPUs off a 1200W server PSU. I know people who run entire GPU datacenters off server PSUs.
So, I see that Parallel Miner sells some of these items.
I also see that you build/offer breakout boards. Can you suggest where I should get the needed components (PSUs, breakout boards, PICOs, etc) for my builds please?
I'm planning to build 5 rigs with 12 X 1080tis each based on the new Asrock or Biostar mobos that have 12/13 PCIE lanes.
The 1080tis pull 250w (ish) each. So each rig has a need of 3000w constant and that doesn't include the "internal components" (mobo, cpu etc).
So I'm thinking of just getting 2x 2400w ServerPSUs per rig and that should have me drawing less than 80% and still VERY cost effective.
Just wanna make sure I'm not missing any parts I'll need etc. Thoughts?