On GPUs, only 2 of the pins are used for 12V power so that's 18A per connector. But on GPUs only 75W comes in per 6-pin, which is only 3.1A per pin. If you adapt 6 pin to 8 pin, you use all 3 lines but for 150W, so 4.2A per pin.
Standalone devices like Cubes and Ants, which can pull in 360W per device through two 6-pins, if using all 3 lines, pull 5A per pin.
And just because 20AWG is rated for 11A doesn't mean it's a good idea. Every experimental result posted in this forum will tell you the wires get uncomfortably warm.
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I've got an overclocked Ant and an overclocked Cube running off some 12" 20AWG PCIe cables, and they do get warm. Any longer and I'd throw them out, but it's what I had available at the time. Everything now runs off the 16AWG 18" cables with zero issues at all.
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I did some measuring a while ago, which I assume is still valid.
About fifteen minutes of steady-state mining at stock clock, I read about 27.3A at 11.73V delivered to the Ant terminals. That's 320W per Ant. AntMiner overclocked to 400MHz, increased the current output 13.8%, which puts it at 31A or 365W
That's actual DC consumption, not power draw at the wall.
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I actually will be sourcing a number of supplies in a bulk purchase, so I'll be able to sell complete "kits" with the supply, board and four cables.
Also glad everything arrived and is tested and approved.
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Possibly next week. Got a fair bit of stuff to coordinate first, and we won't get any work done this weekend on account of an out-of-town wedding hooray.
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Yes. I should get some downtime from manufacture next week where I have a few days of devtime to start prototyping the DPS-2000. I've had everything required for a couple weeks - everything except time.
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I'm working out the details for an EU reseller, so when the next round of sales open up someone will have stock in your neighborhood.
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Yeah the way I figure, I've been losing around 13-14% to PayPal and eBay (refurb/resale online has been my full-time job for two years - ebay seller midwestrefurb - I estimate 14% on all bid transactions) so that would shave it down around $69. He paid $55.50 per set (board + 4 cables) when shipping is figured in, so that's a margin of around $14 per set at least for the basic set. I guarantee the supply and power cord didn't cost another $40 though, that full kit has a good margin to it. I wouldn't sell it that high, but then I also don't pay retail for the boards and cables. If you want them immediate though, he's the place to get 'em from I guess; it'll be another week and some before we sell again.
The large capacitor is there to assist the internal supply's caps in supplying burst current needs. Some miners pull a lot of current when they kick on, which can trip out a supply or bottom out the voltage briefly. It's not really an issue with these supplies, but a little help never hurts. The more stuff you have between the supply's output caps and the load, the harder it's going to be to push that burst current, so we put an extra cap right at the connector to help smooth things out.
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Eh, as long as credit goes where it's due. I and my guys have worked way too hard on this to let someone else rebrand it, but he's edited the listings.
I had planned on not opening general sales to the world until the next batch, keeping it to the forums until everything was pretty well ironed out and proven to be good. Not that I really had much doubt, but it is a bare PCB and there are a lot of idiots in the world.
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I'm betting that would be TracerX, who bought 10 boards and had them shipped to Oklahoma. Info matches up. Dude, not cool. If I wanted them on eBay I'd be selling them on eBay, and my seller creds are better than yours. Also thanks a heck of a lot for crediting the actual designer, manufacturer and brand by putting your own name on it.
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Shouldn't be too surprising. Bare wire ends are for DIY, not retail!
In any case, glad they got there and everything's approved so far.
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I've got an Ant running off three-wire 20AWG, 12" long. It's nonideal.
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Not really, at present. How many would you need? When sales open, boards and cables will be sold as separate units so you can buy one, the other, or both.
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I'm going to close orders for now ... no further orders will be accepted until the current ones are filled and stock is built back up. I just shipped the last boards we had ready to roll. We're gonna finish out the run before opening orders again. It'll be at least a week, maybe more.
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Ah, sold out now. I messaged about 14 hours ago about making a purchase but hadn't heard back yet. Will get in on the next one.
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Yes. I have a few orders placed that haven't paid yet, and anyone that has paid already, are in the first group and your order will ship as soon as all stock is available. If you only ordered boards, it should be immediate; orders with cables will be shipped as the supply is made available.
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I'm going to close orders for now. We've made a good pile of cables this weekend, but will be probably the rest of the week filling the current orders. Taking time to make cables has slowed board manufacture a bit but that should be up to speed soon regardless of cable time.
In any case, if you've placed an order already it'll ship before the end of the week (you will have been told about this delay due to cable stock while placing the order); no further orders will be accepted until the current ones are filled and stock is built back up. Probably in about a week.
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Not really. Someone already posted where the current share pin was on the supply, and it's also broken out to a header pin on my board. If you want to parallel multiple supplies, as far as I know all that is required is to put them on a common bus (hook the ground and 12V together) and then tie the current share pins together. The rest is internal, it should "just work".
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Yep. Isolating the circuit ground from case ground/neutral means you can stack the voltages together by referencing one supply's ground to another supply's (isolated) 12V output, so measuring between one ground and the other's 12V gives you 24V without exploding anything. If you're just paralleling you can tie the Current Share pins together and the supplies will cross-regulate to balance the current outputs evenly between several supplies, so you can get 12V stupidly-high-current without exploding anything.
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Sexy. What's your configuration? Are those loadsharing, or two Ants per supply independently? What speed are the Ants running?
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