Prelude I really like what you did there.
When I use my 2000BBs stacked together I strap the fans using tiewraps and then my cables run straight off the GekkoScience break out boards to the miners, but I like your implementation of the separate connection bars.
Once cable is only 12v, but you are gonna get a nice little bump if you short that to ground with a sweaty hand my man. At least run some silicon, or actually, you could put a small piece of cheap plexiglass across the top of the bus bars. Terminal strips that long aren't that expensive either, but I know if I'd built it I'd be happy and proud of not needing other materials. You probably had everything laying around
Still though, some terminal strips with side guards would be a big bonus.
It is a good looking setup though for 4k watts. I have half a dozen in the closet I need to make a project with.
At the moment everything is running using the 2880s w/ Jabbers boards from Finsky.
Sidehack and Finsky have both treated me well. I've never had a bad experience with either of them with transactions, or with Jabber or Gekko's equipment. I do like the options on the GekkoScience b/o board for the 2000bb as well.
I think I am going to do what you did. I copy good ideas all the time and try to improve them.
I'm really not worried about the bus bars. I've got 2 DPS2500s coming in today, turning the setup into a 5000W beast instead fo 4000W. Once they're installed, I'll be putting everything up on a shelf out of reach. If it was somewhere where kids or pets could get at it, I'd definitely cover them up somehow, but as it is they're in a garage where only I have access.
They're definitely a pleasure to deal with, and both have great hardware to offer. I have a slight preference for sidehack's boards because they have a lot more options available on them, for example the load sharing, 5v for controllers, and fan headers with speed control.
Make sure you send me some pics of your setup if you make one too!
what's the purpose of the busbar, and not just connecting the PCIe wires directly to your breakout boards?
obviously the load-sharing provides slightly better stability/overhead, but for ~$20 of extra materials and at least an hour of added assembly adding another PSU seems simpler
I needed the bus bars to use load sharing properly, need a common bus between both PSUs to pull juice from them equally. I went with this setup because the loading wouldn't have been equal across both PSUs while powering 3 S7s. One PSU would've powered 5 blades while the other only 4. That would cause one PSU to be overloaded while the other one was under utilized. I guess if I had the 2500BB to start with, I wouldn't have bothered, but it was a nice little project that I enjoyed putting together. I learned from it, and the next one will be more efficient.