Barntech and others - We have some good mentions here of power supplies. They seem to really vary in price from 60 bucks to almost 200 bucks.
Some of them are modular (no cables connected, just the plug end - more money) and others are non modular (come with cables wired to box, LOTS of cables - cheaper). I prefer the former but need to know what cables to buy. I believe the Drillbit system can run off of a USB plug or
And, if we are going to overclock the Drillbit system, do any of these power supplies work or do we need something special (e.g. more adjustments with Voltage, Amps, etc.)
I will have the Drillbit 4 card system into 1 backplane (100 watts or so) AND a Burnin Mining system with 2X20 282Mhz chip unit. (Think that is around 200 watts or so). I'll probably get a 450 watt unit (90% efficiency) or higher.
Thanks,
IAS
The Drillbit Boards power from a 4 pin molex. The miniplane from an ATX power connector. The overall draw on a fully stacked miniplane won't be all that high. We're moving into testing phase this week and will publish details as we have them. There have been some good suggestions for PSUs on this thread. We may recommend one, but in the end it will be up to everyone how they want to do it, how many boards they will be needing to power etc. A $60 PSU should be fine though. More on that stuff soon.
Barntech
How about powering more than 4 boards? I don't get why you chose an ATX cnx for only 100W. Are we suppose to buy a PSU for each 100W / 64GHps rig?? Initialy, it was clear we can stack "mini stack" to a upper lever and that would lead to a 16 PCB rig. Is it still true?
Will you still provide a PCB for 16 boards for free? Will it postpone shipping than without?
Or can we just supply each 4PCB rig using one of the 4 molex instead of using ATX ?
I'm not so worried about all that, I'm just trying to understand clearly so I can pave the way of the drillbit. As my previous miner, I just unpacked, plugged, and configured it
. I will share all my hardware choices (microPC, PSU, ...) on this topic.
By the way I'm glad that everything went as expected so far, congrats!!
Hey Beast.
Firstly, no, one 4 pin molex won't run a 4 PCB stack. Definitely don't try to do this. It would probably damage your equipment.
At this point, what we are doing for larger stacking is a hub which stacks two miniplanes. One ATX will power this. They will cost approximately $50. Beyond that you will either have to get a larger PSU and potentially convert the 12v to 5v to run the second, or as you say, get a second power supply. You will be able to get away with pretty cheap ones though.
The main reason for the power going this way is the overclocking. The boards are rated so that you can push them up to max on the power without any troubles. This requires more draw. If you were to run them conservatively it may be possible to run two hubs from one atx connector, but not ideal if you are wanting to overclock.