viper_maxi

And if I was doing it I wouldn't build a machine requiring a 3300W PSU.

Do the *17 miners have four boards or three? An odd number of boards would weigh against an internally dual supply.

Bumping this because I've heard from a few people in the last few days, it's still around and causing trouble.

Charles-Tim, it's not likely a scam it's guaranteed to be a scam. I run GekkoScience, have since we started in 2013, and I have no idea who's running the linked site. It is 100% a scam.

Indeed, pretty ridiculous. Their numbers though, I *wish* we could build a multi-TH stick miner. But yes, it's wholly fraudulent. If you're looking for GekkoScience products, hit up the authorized resellers. 419Mining…

Okay but he specified 130A on 240V single phase, which means he was drawing 31.2KW total. Switching to 3ph, let's say it steps down to 208V l-l, the equipment will still be asking for 31.2KW which means 150 amps total,…

NotFuzzyWarm and some others who know power could probably chip in with better specifics. My knowledge is largely academic.

Power is volts times amps. 130A 240V makes 31.2KW and at 208V that means 150 amps. From 600V it's 52 amps. Any step-down transformer stage will lose a bit of power. If your 600V three-phase is significantly cheaper than…

mikeywith, I gotcha. I wasn't thinking a general case, but specifics of this device. In the USB-C cable is a data pin outside the standard USB signals, used for initial power negotiation between the host and device.…

Video is unnecessary. Only data and PD. Not supporting video is fairly irrelevant. What do you mean, capped by the power source? It *is* the power source. "all devices you plug into it" won't need to provide anything.…

Wonder what it would take to build a USB Type C hub with data and PD. Might have to do a bit of research on this. Be interesting if it's possible to, say, grab a USB2/3.1 hub and line up a PD controller alongside each…

There aren't a lot of decent hubs either, really. Most USB-C "hubs" I could find split it out into several USB-A, HDMI, ethernet, a card reader and who knows what else. Three or four years ago when this standard was…

I'm not convinced that motherboard would do the trick either. The manual has zero information on USB power handling. The standard it references for the Type-C port is mostly for data rates. Newegg's product page has no…

Hey everyone. I've got a quick question for you all. If I created a miner that's powered through a USB-C connection, would anyone actually buy it? I'm picturing a compact device, roughly the size of a cube about 8cm on…

Actually, 4TH would be more like 1100W.

If everything works how I think it should, anyone with a PIC programmer and a screwdriver could rework any S7 to run undervolted. At the same numbers as estimated above, a full 135-chip S7 would run 3TH at under 700W. I…

If it'll hit 0.18 - that's a stretch. You'll probably lose 5% in the buck, then add 30W for fans and controller, and 10% to the PSU, gives you 450W wall. Still almost twice the hashrate of an S5 for 3/4 the power draw,…

Alright. I'll keep working on my end and see what I come up with. The only S7 blade I had access to before yesterday was a roasted 54-chip from a Batch 1 miner, or I'd have been working on this around February.

If I'd had the budget I'd have bought one ages ago just for this reason, but it wasn't until I sold the rest of my Compac batch and Bitmain had one for $300 that I was able to bite. Think you can write a bit-bang I2C…

I bet you could. The 47C it's currently running, it's only got the pusher fan installed. I bet with both, even with both blades powered up, it'd be a lot cooler. I'm not going to hardware-hack the other blade, gonna use…