You're not reading what I POSTED.

 I SAID "when set for best efficiency", not "AT HIGH HASHRATE".

 I also said "1070 ti" NOT "1070".

 1070 ti does 460+ sol/s at 106 watts, at that same power point the 1080 models I've worked with sometimes match but usually give a little LOWER hashrate, while the 1070 ti costs less than the 1080 for "same model" cards by normally around 10%.
 Nothing else in my experience EXCEPT THE TITAN V can manage 4.4+ efficiency reliably - but that thing is horrible on hash/$ basis.

 1080 does better when you push it harder, but it never manages 10% higher hashrate at any given power point on ANY of the cards I've tested - it starts pulling ahead on efficiency past about the 120 watt power point, but BOTH cards are getting less efficient fairly fast by that point.

 I'm not saying the 1080 is a BAD card - it's just not the king of efficiency on ZEC mining, by a fairly narrow margin it's #2 in my testing but for EFFICIENT mining it loses on a hash/$ basis to the 1070 ti (unless you get a SUPER sale on the 1080 or have horridly high overpricing on the 1070 ti).


 1070 ti is a complete waste on ETH - it has the SAME hashrate as the 1070 - and the 1070 at RECENT pricing is a waste on ETH as it gets blown away on hash/$ by the AMD RX 470/480/570/580 AND by the GTX 1060 (possibly even by the RX 460 and the GTX 1050 ti for that matter).
 The only reason the 1070 ever got widely used as an ETH mining card was when AMD pricing got into the SAME price range, but the 1070 hashes a LITTLE better than the AMD high-end Polaris cards.
 AMD high-end Polaris gouge pricing during the "extreme demand" period is also why 1070 pricing got pushed into 1080 pricing for a short while.


 I am not giving misinformation AT ALL, you just aren't reading what I'm SAYING.



 For the record, SOME 1070 cards manage 400 sol/s at 102-104 watts, but some are closer to 380, depends on the model and high the memory clocks reliably - but that's quite a bit less than either the 1070 ti that I was talking about or the 1080 we both were.

Given that the EVGA G2 850 watt PS can still be found, sometimes at a REASONABLE price, and the power connection limitations on it, I've been thinking I may end up going with a mix - 2 x 1080 ti, 2 x 1070 ti - at some point on my "6 amp rigs".

 Won't be soon though, as I still have several "ex-folding" rigs left with Seasonic X-850 or SS-860 power supplies to "convert" to riser rigs.

60% power is actually 106 watts for most 1070 ti cards to date including the EVGA SC model, but anywhere in the 100-110 range gives very close NICE efficiency numbers.

Part of your issue is that AMD does not have working LINUX drivers for the Vega that support openCL.

If you use Windows, you need to get the applicable drivers from AMD's web site - why would you expect a WINDOWS 7 ISO to include drivers for cards that didn't EXIST when Windows 7 was released?

 Don't bother trying to get the "blockchain" drivers for Windows 7 though - they flat out don't work at all with 7, despite AMD's LIES to the contrary they only work with Windows 10 (and possibly 8/8.1)

Don't bother TRYING to mine Litecoin (or any other Scrypt coin) on any GPU.

 Scrypt mining got taken over by ASIC devices 4 or so YEARS ago.


 For what you apparently want to do with your 2 machines, look into "internet connection sharing" - you can't have the MINER submit work to another MINER, but you CAN have the 2 machines share a single Internet connection.

 Or better yet, get a "WAN/LAN" router box to do the connection sharing instead - then you could eventually add a LOT more machines.

Try running the memory at 700 instead of 750.

 I never got reliability out of anything over 700 on my EVGA SC 1070 ti cards.

 PSU included, much better Avalon reliability included, but apparently aimed at the China market ONLY.

 Then you get to factor in the HUGE price jump on the last S9 batch, though that did happen after your post.

A7 only, Caanan themselves have stated the A8 won't be in production by then.

 subzero C is trivial - I can't think of any electronic device that CAN'T operate well below 0 C

 subzero F is trivial as well unless some sort of "optical read device" is involved, where condensation can cause issues for the read device.

 Military electronics is COMMONLY specified to at least -40C and usually -55 C - but the PARTS themselves don't tend to be any different inside other than the "recordkeeping makes it easy to trace the lot if you have a bad part" type stuff.

Of course they go on current ROI estimate, they can't predict future BTC prices any more than the rest of us can.

 I have issues with Bitmain - but this pricing thing isn't exactly NEW news out of them, and IS in line with their LONG-standing policy about pricing their miners.
 The "sudden shock" is only for morons that don't pay ATTENTION to how they do business.



 But yeah, them getting to sell into a bubble was certainly a win for them - *IF* they converted their coin to hard cash fast enough (which they probably did).

Vega 56 without a BIOS mod often has issues past about 940 memory clock - and mine gets unhappy at anything above 935.
Apparently one of the ways AMD deliberately "crippeled" the 56 to avoid having it poach 64 sales was to limit how high the memory volts COULD go, to limit memory clock speeds.

 Try running a little lower memory clock setting if you want STABLE performance.

 GTX 750 and GTX 750ti aren't all that close - 750 was a Kepler card, 750ti was the "baby" of the Pascal line, similar CUDA core count and quite a bit higher clock.

 GTX 750 ti should really be mining Monero though, it's a very high efficiency Cryptonight mining card while it's a fairly poor-to-so-so equihash mining card even for the low end.

The Aorus is a nice card - I've got 3 of the 1080 ti models of those - but they do require 2 x 8-pin power which makes getting power to them a bit of a pain for a multi-GPU setup.

 I prefer the EVGA SC model on 1080 ti cards - cooling isn't quite as good but since I aim for efficiency in my mining it's plenty good ENOUGH.
 Even that ASUS blower-type card has "good enough" cooling (and like the EVGA SC it's also 8 + 6 power) when mining EFFICIENTLY with it - and it tends to be one of the lower-cost 1080ti options (other than FE cards with their REALLY BAD cooling setup).


 Isn't the Poseidon a "water-cooling" type card? Those ALWAYS run a good bit higher cost than normal air-cooled cards.

 I'm also guessing you're not in the US, as BOTH of those prices are insanely high.


 1080 is not the most efficient equihash mining card - the 1070 ti is - but the 1080 is VERY close when both are set for "best efficiency".

 NOTHING NVIDIA is worth considering for ETH mining other than the 1060, as AMD cards can pull almost the same hashrate as a 1070 (1070 ti is same on ETH, 1080 is WORSE) while costing about HALF what a 1070 costs.
 1080 ti isn't that much better than the 1070 on ETH hashrate - 20% ballpark - while costing commonly more like 70-80% more for "same model" cards - which makes it a FAR WORSE option on hash/cost than the 1070 which is ALREADY a very bad option on hash/cost.

 Scrypt on Nicehash at this time is LOWER profit than mining Litecoin via a pool like LiteCoinPool.

 This is a reversal of the situation for 2-3 months before the hack, when Nicehash was paying out a LOT more for Scrypt hashrate than mining Litecoin directly, and usually more than mining any of the other Scypt altcoins.


 The ONLY stuff I have pointed at Nicehash at this point is the cryptonight CPUs and my single Vega - which I had not found a replacement home for anyway as far as Monero mining went, so if their income gets lost it's no real loss to me other than a few watts extra power usage (and somewhat fewer DNet RC5-72 blocks crunched).

 Very low risk (the extra electric usage), potential some gain, ONLY reason I'm using them at all for the next month and change.


 My "old mining income" tab thing IS showing what appears to be the "correct" amount, but I didn't watch my Nicehash balance every hour or such so it could be off a LITTLE.

 Newegg takes Bitcoin via Bitpay - but the last transaction I did got borked somehow and Bitpay is so far not willing to concede that THEY messed up somehow.
 They keep claiming I "underpayed the invoice" somehow when I copy-pasted the amount into my wallet.
 They want to refund me the "refundable amount" - but insist on charging me an ADDITIONAL transaction fee for the refund on top of the ALREADY insanely high transaction fee I had to pay for the FAILED transaction in the first place.

 They are also VERY overloaded this time of year, which I suspect is part of the issue - and their "support" is being VERY VERY SLOW about dealing with issues.


 In fairness, this is the first time I had an issue with Newegg/Bitpay on a bitcoin payment out of quite a few over the last couple years.

 Windows Defender thinks bloody near EVERYTHING is a virus if it didn't come from the Microsoft Store.
 HORRIBLE high rate of false positives, while giving the worse protection against REAL viruses of any "major" anti-virus program, in the tests I've seen quite a few sites do.



 50% of one core on a 8370E, or 50% of ALL 8 CORES total? If it's the latter, that's WHY this miner would have issues on dual-core CPUs with running at all.


 What the heck is a "N,K-96,5"?

 No opinion - but I'll point out that Newegg carries 6-packs of the Mintcell version of those for $7 or $8 more, shipped from the USA instead of shipped from China.

 Should manage it at 60% - and you don't get 4.4+ out of a 1070 ti at much more than 60% so it works out.
 50% in MY testing on 3 different 1080 ti cards was a hair WORSE efficiency than 60%.


 Any suggestion of mining ETH on a NVidia card OTHER THAN a 1060 model is dumb - 1070 and up will earn a LOT more on many other coins than ETH.
 The ONLY reason the 1070 ever got popular on ETH was when AMD comparable-hash cards got up into the same price range as the 1070, and ended up pushing IT'S price at the peak up well into the 1080 range.

 I guess there is some point to that question now since he added support for the Polaris cards and those HAVE working LINUX drivers.

 8-O

 1080 ti run at efficient settings will manage closer to 4.1-4.2 range - which still isn't a match for the 1070 ti but it's not WAY far off like you're claiming.