If you have the know-how and the time to put them together, they can be amazing. 160+A on the 12v line, 92% efficient all the way up to 125% over spec, and really cheap on ebay. The problem is that they can be a PITA to set up. Buying all the wires, PCIe plugs, heatshrink tubing, solder, and then power plugs does add up, and it takes hours to build even just one PSU. And yes, you WILL need some high quality fans to cool those suckers. We used some cheap 80mm case fans strapped up to one side, blowing through it, but it wasn't enough. We ended up buying 3x 60mm Delta fans, and now they're rock solid.
We have several of them powering the majority of our GPU farm, and then even more powering all of our Ants. In the end, it saved us several hundred USD to power our entire farm, both GPU and ASIC.
The 220v wasn't an issue for us: We brought in a new electrical sub-panel, and we loaded it up with 220v breakers, each of which run to 220v managed/switched PDUs, which then go to these DPS-2000bb, some Corsair CX430, and Rosewill Capstone 750 (modular) PSUs. The ATX PSUs are just for powering 1 or 2 cards here and there, and also for controlling the MB/CPU/RAM + risers.
How about a back view to show off our new PSUs! We've had them for a while, but just got upgraded fans so we could run them @100%.
Each shelf (or pair of rigs) has one, as well as 2 more of them powering our 7 Antminers (not pictured).
The other PSUs on the other shelves are running 8 GPUs, but on the top shelf we're only having it run 7, cuz the 290s draw a little more power than the 280x.
Those are 3x 60mm delta fans strapped to the side of the PSU. That PSU prolly has more airflow now than it ever has.
We have several of them powering the majority of our GPU farm, and then even more powering all of our Ants. In the end, it saved us several hundred USD to power our entire farm, both GPU and ASIC.
The 220v wasn't an issue for us: We brought in a new electrical sub-panel, and we loaded it up with 220v breakers, each of which run to 220v managed/switched PDUs, which then go to these DPS-2000bb, some Corsair CX430, and Rosewill Capstone 750 (modular) PSUs. The ATX PSUs are just for powering 1 or 2 cards here and there, and also for controlling the MB/CPU/RAM + risers.
Each shelf (or pair of rigs) has one, as well as 2 more of them powering our 7 Antminers (not pictured).
The other PSUs on the other shelves are running 8 GPUs, but on the top shelf we're only having it run 7, cuz the 290s draw a little more power than the 280x.
Those are 3x 60mm delta fans strapped to the side of the PSU. That PSU prolly has more airflow now than it ever has.