It was mentioned a while back that the S6 model number was going to be skipped.

S6 would have been the BM1384, not the BM1382, per usual Bitmain numbering scheme.
S4+ numbering made perfect sense within the Bitmain numbering scheme as a BM1382-based "upgrade" to the original S4.

 I think they decided on the S5+ name 'cause it wasn't an actual rack mount unit, but it's an odd duck however you figure the numbering of it.

 S7 and S5+ are not aimed at the same market - and it appears they sold out completely on the S5+ just before they announced the S7, if I remember the timing right.

 I suspect they don't have enough BM1384 chips left to BOTHER trying to build/sell anything else with that chip in it, thus the timing on the BM1385 announcement.
 They certainly weren't pressed by EXTERNAL competition to any real degree to push up announcement of their next-gen chip.


 Reseller announcements have already claimed September.
 It's a virtual certainty the S7 has been in production for a month or so, perhaps longer. What were they replacing the Hashnest and main site "Used S5s" with if not the S7?
 Please don't say the S5+, I'd HATE to die laughing.



 Skipping model numbers is ancient news. Consider Windows version numbers.....



 
 That would explain so MUCH - and is actually believable.

 Sadly, though, I'm pretty sure the PC Jr. was intended to compete with the C64.

 150 cfm Delta is doing most of the work - not THAT much less airflow than the 190cfm stock S5 delta. I'd guess JUST replacing the stock fan with that 150cfm unit would increase your hash board temps 2 degrees C or so with no other change.


 
 S7s appear to already be in use in Hashnest, per all indications that's what Bitmain replaced their Hashnest S5s with (you know, the "used" ones they sold for a month or so?).

 KnC claimed to have their Solar stuff "in production" months ago - didn't they announce tapeout EARLY this year?

 One thing about difficulty - the faster it increases, the faster old inefficient miners get dropped, which will limit the rate of increase at least some. I won't be supprised to see the average kick up into the 2-3% range, vs. the 1.6% it was averaging for this year prior to the "used S5 sale", but I do NOT expect to see 5% figures ever again except as a one-shot followed by a MUCH smaller jump on the next increase - and possibly not even then.

 Do keep in mind that if the "best gear on the market" isn't profitable for someone they'll tend to turn it off - which is a MAJOR limit on how fast difficulty can climb. When the S7 is unprofitable at 10 cents a KWH lots of folks are going to be turning them off.
 Even some of the major FARMS pay more than 6.5 cents / KWH (I only get 6.7 (I refigured it this week based on my CURRENT electric bill and "additional charges") as an "incrimental" cost past a certain number of KWH during the non-summer months).

 Also do keep in mind just how MUCH existing hardware is already hashing. It takes a LOT more to "make difficulty explode" now than it did even a year ago.

You can mine with both GPU and Gridseeds on the same machine.
 (I did this with a couple of Radions mining Darkcoin (X11) and up to 3x Gridseed 80 units (6 "blades") mining Lightcoin on the same Linux box for a while).

 I WILL say that Linux was more reliable on running multiple blades, but if you have a Windows machine you're not running much of anything else on it works fairly well.

 You have to run a seperate instances of cgminer, one for whatever you are GPU mining and one to run the Gridseeds.
 You would DEFINITELY have to run seperate cgminer instances for each class of coins (by algorythm, Scrypt/X11/X13/etc.).

 To the best of my knowlage nothing BUT cgminer ever supported Gridseeds, but since I had cgminer working I didn't really bother looking into anything else after I got it working.

 Any machine that can run cgminer AND has at least one USB port can run Gridseeds. Not sure I'd do it on a laptop as I don't trust laptops to not overheat when running 24/7 but should work OK if you have good enough cooling on the laptop.

 I think I was figuring 10 cents / watt, but I don't think I factored in diff increases. Someone mentioned somewhere that Bitmain prices their miners to ROI in 250 days without diff increases, so I plugged the numbers I had estimated for TH and watts into that.




 
 https://bitcointalk.org/index.php?topic=1159185.0

 Most of the entries seem to be clustering pretty close to 4 Bitcoin - which was worth about $930ish when I posted that price estimate.
 (Edit) Just went back and counted, an outright majority of entries are guessing prices between 3 and 5 BTC, the rest are all over the map and some of the rest are insane (like the ones at 1.something or 11+).

 I'd be HAPPY to see it at 3ish Bitcoin or less, but I don't believe that is even CLOSE to a reasonable expectation after factoring in the additional efficiency vs. the S5 - do note that the last S5 price was right about half of that estimate, do you REALLY think Bitmain isn't going to charge a premium for the DOUBLED efficiency vs. 2 S5s that hash at pretty much the same rate combined?


 

 Common in kitchens. Not so common elsewhere. Also, I'll point out that 24A at 110 is easily handled by *2* circuits, most common US house outlets being on at least a 15A circuit. *2* circuits in a room are more common, even some of the MOBILE HOMES I've owned came with a seperate circuit on each side in at least the living room, going back into the 70s when I started paying attention to that sort of thing.


 Never disagreed with that point, just pointing out it wasn't common in homes without rewiring work.
 Kinda redundent debate at this point, sidehack having mentioned he has no interest in this being intended as a home miner.



 
 1u x 2u = 1.75" x 3.5" (actually a hair less due to case thickness). Figure if your "track" is 1" before you widen it, need 5.25" or so worth of width to feed each PS.




 Load balanced redundancy is a PITA to try to set up with PS that are not specifically designed for it. Takes a fair bit of additional circuitry to make it work reliably. I'd skip the whole idea.

Lotta stock AMD A-series and F-series HS/Fan out there too, most will easily handle 50 watts (the stock ones from my A10s are about the size as some I had on Thunderbird/XP series Athlons, many of which which were closer to 90 watts or so).

 I'll point to that Chili miner, which had both - it's NOT hard to do.


 Sadly, most of my "left over" spare HS/Fan are from the Pentium/K5/K6 days, some of the bigger ones would probably handle 50 watts but most folks don't have a ton of the old clip-style HS around any more so probably not worth trying to come up with a mount for THAT old of stuff.

Taped out, probably sometime early July. Still takes a few months to get working PRODUCTION silicon after that point, especially on a new process node might take longer to get yields enough to start selling chips and building machines.

 Patience. All appearences are that Sfards will have competition from Bitmain soon, and both SHA256 AND Scrypt competition by the end of the year or very very early next year.


 (edit) OK, the SHA256 side competition showed up a bit earlier than I thought it would...

 https://bitcointalk.org/index.php?topic=1165628.0

 ...though I was NOT expecting Bitmain to abandon the "average" home miner with such a high-end LOUD unit.


 It appear the S5+ wasn't JUST a "one shot" concept but more of a "proving ground" design for their NEXT generation.

 Unless your electric is VERY cheap, you'll be throwing money away.
 Might help some if you can undervolt the S2 as much as an S1 can be undervolted, but you'll still never RoI the things unless you have essentially free electric (using them as space heaters in a home with electric heat, for example).

 Odd, my SP20E is getting well under .5w/Gh at the moment - running it at .60 volts while my power cost is high to maximise profit, 864 GH at 400 watts at the wall (measured with a Brand 1850 power meter) putting it at .463w/GH

 I crank it up to .64 volts on weekends (Time of Day rate drops my electric cost then making this the most profitable point of operation), pulling 1291 GH at 710 watts - .55w/gh STILL stomps on your .65

 Due to summer heat issues, the highest I ran it at while testing was .66 volts - 1403 GH at 842 watts - .598w/GH and STILL better than your .65

 Please check your facts in the future before posting such totally INACCURATE claims.

FPGA hasn't been cost effective for Bitcoin for years. Ignore that.

 Not from what I've seen of most recent designs. It's quite common of late to have no pot to adjust voltage at all.

 I have more than a few cases in the 10+ pound range that are held only by the ears - longest ones around 24" deep.

 The ears can be QUITE strong, and as short as the case Sidehack is proposing is, it could probably hit 15-20 pound range with zero issues.

 My Nikko Alpha 3 is 4u, over 30 pounds, about the same length he's talking, the power transformers are in the BACK with the heat sinks hanging OFF the back, and that rack mounts just fine (the front panal is bloody near a quarter inch thick though).

 Dunno where that "must use a shelf if more than a couple pounds" nonsence is from, but it has ZERO basis in reality.

 Depends on your electric cost. Even after halfing my current estimates are that my S5s will continue to be profitable at 6.5 cents/KWH - though not much profit and not for long. If you have 3 cent electric, perhaps 2 years - even if the difficulty keeps increasing at the recent rate of increase (this I expect to keep dropping long-term, and I figure the halfing will quickly kill a LOT of mid-to-high price electric mining efforts with older gear).

 There have already been 2 new miners announced - Antminer S7, probably in September, and an lktec unit likely in December.
 This is NOT counting anything Bitfury, KnC, and "the company formerlly known as Spondoolies" are doing since they don't sell to the public any more.
 This is also not counting folks that haven't announced ANYTHING about what they might be working on for the next generation (like Avalon).


 Too expensive, the initial investement is VERY HIGH and only if you're in a very isolated area will it ever pay off at all.
 The technology needs to come down more in price before solar gets to be usefull, many companies have been working on that but even at COMMERCIAL scale solar is still a lot more expensive than any other widely used technology for power generation.

 You must be confusing Innosilicon with someone else. They're the only company that has made Bitcoin gear with a track record of NOT preannouncing, and one of the very few that has never does "preorders" - perhaps the ONLY one.

 The "announcement" was more of an off-the-cuff comment in that "response to bitmine" thread, where they mentioned they had tapeout on their next-gen A3 and A4 more-or-less in passing. I don't have a link handy, but it was here on bitcointalk.

 Perhaps you're thinking of Lketc, which used Innosilicon A1 chips in their Dragon models and has announced a 5TH miner?
 The speculation is that miner will be using A3 chips, given the long-lasting relationship Lktec has had with Innosilicon.

 It's only common at the breaker box and in the main supplying the box, NOT in the home itself.
 NOT the same thing.

 Having does more than a little rewiring over the years, I was FULLY aware of how power commonly arrives at the breaker box - but you can't plug a miner into a breaker box much less a main supply.

 I didn't realise that DPS1200 was 1ux2u. Size objection overruled by additional fact input.

 15" deep is VERY SMALL for a 4u computer case. 20"+ is a lot more common. The only 4u cases I've seen that were under 18" were for audio gear, and ONE computer case designed for a microITX motherboard based server.

 If it's intended for commmercial specific, I'll point out that EVERY Bitfury rackmount miner appears to have been 6U and somewhat longer than you're aiming for.
 IIRC at least one of the Avalon rack mounts was also 6U.

It would be nice if they were set up for use of Intel OR AMD HS/Fan. Only would take 4 more holes in the board and a bit of care with the layout, and it wouldn't even be a NEW concept.

 Be even nicer if it had the holes for the old Swiftech 370 / Alpha 8045 type heatsinks, but those weren't really common and dunno how many folks kept them around after their Athlon Thunderbird/XP machines died.

 The 230watt / th is THE hard figure they've mentioned, though the fine print on that specified chips running at .66 volts.
 Presuming they stick with string design, that DOES specify 18 chips per string.
 It would be VERY VERY iffy for them to try to cram 54 hash chips on one hash board.
 Therefore, the general consensus has been 2 hash boards, 2 strings per chip, appx. 2.3 TH at appx 550 watts ballpark for an S7, at around 4 BTC PLUS shipping (or around $930ish at current BTC pricing). Call it $1000 or so shipped.

 Under 60c for longevity, as low as you can get them for max longevity.

 Have you tried mounting a folded-up blanket (or a large bathtowel etc.) between the S5 and the rest of the room to muffle the noise?