Guys calm down about the PSU. I've ordered an S2 and will do a setup guide and review - if it burns my flat down then I'll let you know
In all seriousness, I'll obviously check pwoer consumption and PSU spec'ing.
+1. Stop getting your panties in a knot over vague technical specifications. Bitmain has a prototype right now (that i assume works just fine) so it seems VERY unlikely they would be stupid enough to skimp on the PSU rather then be smart and install a power supply that has some headroom. They are not tech-illiterate, and the S1 proved that handily.
I imagine that Bitmain has arranged some sort of deal with enermax that they will buy PSUs in bulk, within china, and get very good cost, high quality models. Even with the extra shipping weight it probably works out cheaper then letting customers buy one on delivery - and might be partially influenced by the forum threads full of people complaining about their units malfunctioning [because they are trying to use <500W power supplies]
I use server supplies for a lot of my gear, which gives me 1000W for about $30 + an hour of my time (getting the supply, testing it, soldering cables, testing it again, praying its not one with a screaming 2000RPM fan, etc), but I have no issues with a supply being included if the quality and price are right.
Well, it's an imagination on your part as you stated...and that's fine. But specs are there for a reason. It's the only thing we can go by. I don't care if somebody has tested a 1000W PSU with the S2 and successfully run it 24/7. A 1000W PSU is just that -- a 1000W PSU. Nothing more, nothing less. If it were capable of producing higher DC output, then it would be rated more than 1000W and vice versa. A device that draws around a sustained 900WDC from it (based on 90% PSU efficiency and Bitmain's spec of 1000W at the wall which is most likely underrated just like with the S1s) is too close for comfort for me.
You see, it's a matter of choice which you can't do anything about just like I can't do anything about your choices. Like I stated earlier, "knock yourself out" if you're comfortable with the stock 1000W S2 PSU. I couldn't care less. I just prefer to have at least a 1200W PSU for it for good reasons. That's all.
FYI: your original post was also and assumption... that Bitmain will use an ATX power supply in their unit... which I highly doubt... Enermax also produces server power supplies. Everyone here is making assumptions based on what information has been supplied and personally my assumption is that Bitmain made a mistake when inputting the info in the post, because they know the power calculations as well as anyone else on here, I'm pretty sure of that.
Also, believing that Bitmain will provide a machine to the correct spec that won't overload the psu is not bordering on fanaticism, it's just a simple observation based on my past experience. Fanaticism is usually based on irrational beliefs and I don't think I was being irrational.
All we can do now is wait for a reply from Bitmain, but I've placed an order in batch 2 anyway
What assumption? You're beating a dead horse. A 1000W PSU is a 1000W PSU whether it be ATX or schmiTX or whatever. Besides, I didn't just pull the S2 specification straight out of my sphincter. Just in case you haven't caught up yet, Bitmain has officially released the S2 spec on their site and I went by that. You keep assuming that Bitmain is going to put in a better PSU but there's no evidence to that effect; it's still the same 1000W Enermax 80 Plus Gold to date. I will believe it when they say so and officially publish such a revision. Until then, I go by the relatively puny 1000-Watter.
AntMiner S2 SPEC:
l Hash rate: more than 1,000GH/s
l
Power consumption: 1,000W from the walll Power efficiency: 1Watt/GH/s
l
PSU: 1000W produced by Enermax, 80PLUS goldl 4U Rack
l PSU inside
l Plug and Mining
l Stable and quietly
