Where I'm at right now, about 50 cents per square foot per month for a space that is about half office, half warehouse setup - but this can vary widely, Wenatchee is noticeably higher most of the time on the Craigslist listings I've seen in the size range I keep an eye on (but probably lower on LARGE spaces, like most areas).


 I'm wondering when OP is going to rig up a large hamster-type wheel for his kid to run on to generate a few extra watts.
 9-)

The number of GPUs limit for Windows is a DRIVERS limit - neither AMD nor NVidia support more than 8 by default, though I think I've seen comments that there are a "work arounds" possible.

 This is per manufacturer though - you should be able to set up a B250 Mining Pro under 64 bit Windows 7/8/10 with 8 x NVidia and 8 x AMD GPUs without needing a workaround.

 Almost exactly 3 years, between the DASH profitability crash that was caused by the Litecoin price collapse, and the recent across the board price jump this spring.

 It was POSSIBLE to earn in the meantime - but you HAD to have very low cost electric to be profitable at all (8 cent/kwh electric I had at the time was LOSING MONEY though not by a lot).

 Both of the risers you linked have a PCI-E connection on the board, and therefore are safe to use with direct power from the Power Supply.
 (This happens to be how almost all of MY risers are powered at this time).

 Dual SATA or dual Molex to a single PCI-E 6-pin should be reasonably safe, as that splits the load to within the limits of the SATA or Molex power connections.
 (I have ONE riser on a dual Molex to PCI-E adapter as I ran out of PCI-E connectors to power that one with).

The CPU connector - if your CPU is low power, then it should be safe enough (since the motherboard manual specifically MENTIONS it) to just use a 4-pin CPU connection instead of an 8-pin.

 The molex connectors are intended to power the PCI-E bus connectors for use with non-powered risers.

Using SATA to PCI-E adapters on risers is a BAD IDEA - the SATA power connection is not rated for enough 12v DC to handle the typical 70 watts most "mining" GPUs pull out of the PCI-E bus connection.

 You can connect most risers direct to your power supply with a standard PCI-E 6-pin connection - which IS rated to handle the load VERY safely.

SSD is a waste on a mining rig, but if you can get a 60GB+ one for the same price as a small HD might as well.

 That PS is going to be VERY VERY MARGINAL at best with a pair of R9 290 (commonly soak 300+ watts EACH) AND a R9 280 (close to 200 watts I think) on it - I'd go with at least a 1200.

 Keep in mind that the MB/CPU/RAM/HD or SSD/fans all eat power too - commonly 100 watts sometimes more depending largely on the specific CPU and how many/type of fan(s) you need.


 I'm not sure what you mean by "alimentation" - that seems to be a Commonwealth or British specific term?

Motherboard is a poor choice for anything less than about a 9 card rig (where the ease of multi-Power Supply management is nice).
I've currently got 4 GPUs on mine, but I PLAN to expand it over time as I can to at least 9 GPUs long-term.

CPU should be fine for a pure mining rig - upgrading it JUST to CPU mine in it is a VERY LONG PAYOFF proposition and only works if something like Monero retains current profitablity level for YEARS - though if you intend to eventually sell the machine as a "gaming" machine it might make sense to go with a mid-to-high range i7 or a TOP END i5 in it.

 Ryzen doesn't really have any good "mining" board available yet, that I've seen - and with it's current available chipsets it has serious issues with "not enough available PCI-E lanes" for a good mining board, unless someone builds a dedicated model like the B250 BTC Pro where the "16-bit" slot only has 4 or 8 lanes to it.

 VERY good call.

 The original ASRock "BTC mining" motherboard design predates widespread use of powered risers - the current R2.0 version does not, but seems to have stuck with the molex on the motherboard design for backwards compatability, then they carried it into their 13-slot version.

 ASUS does the same thing on their 19-slot B250 BTC Pro design - but the board works fine without the molex if you use all powered risers.

That 8-pin connector is what powers your CPU - IT IS REQUIRED NOT OPTIONAL.

The other issue is that using the onboard 16 bit slot PHYSICALLY BLOCKS 3 of the "1 bit slots" from being used if you have a dual-width card (and it's tight enough most SINGLE-WIDTH cards are likely to block those 3 connectors).

 There ARE server-type PS setups smaller than that monster Delta 2400 - could go with a pair of those, if they include ATX 24-bin cable support.

Biggest limit you're going to run into on standard ATX type power supplies is they tend to not include enough PCI-E connections for the risers AND the cards themselves.

 Neat trick since Innosilicon is not shipping the A5 yet (though I think they have a video of a PROTOTYPE floating around somewhere).

 X13 INCLUDES the 11 algorithms of X11 - plus 2 more.
 X15 is also similar - take X13 and add 2 MORE algorithms.

 The only reason the Bailkal can do all 3 is that it was designed to do X15 from the start - I doubt most of the other X11 miners include the other needed algorithms, it's NOT just a "firmware" upgrade if they don't it's a "need a new ASIC chip".

I've seen some fairly high hashrates reported for Threadripper on Monero, pretty sure they were using XMR-Stak miner.

 I don't remember WHERE I saw them mentioned specifically though - servethehome's "monero" thread perhaps?

12nm is not an actual new node - it's a small upgrade by GF to their existing 16nm node, it's a new PROCESS not a new NODE.

 It's arguably false advertising to call it 12nm since they DIDN'T actually change the feature size.

 Vega inventories appear to be tight due to the continuing issues with HBM2 manufacturing having very poor yields and resulting shortage.

 I doubt that Bitmain will bother switching foundries from TSMC - though they might move to an updated process AT TSMC for a potential "S9+" product at some point.


 The 10/7nm process node seems to be having MAJOR teething issues - Intel has already ended up delaying their introduction of 10nm by over a year, AND broke their long-time "tick tock" strat as a result by putting out *3* generations (so far) on their 14nm node.

For your AMD card, try the 15.12 or 16.9.2 drivers - if it STILL fails, you probably have a bad card.

 Did you check to see if the fan was running? You MIGHT have an overheating issue.


 "Bad solder joints" is a VERY VERY TINY probability, especially if the card EVER worked at all.



 It is NORMAL for the screen to go black for a few seconds at a time SEVERAL TIMES during driver installation. If you aborted out due to this, your drivers probably never got installed AT ALL.

The GTX 750 ti was a good Monero mining card, but the rest of the NVidia line is overpriced for their performance on that coin.
 (possible exception for the 1050 / 1050 ti).

CPU mining on Monero is perfectly practical, but you will generally get better returns putting the money into a GPU to mine with - and you can easily put more than one GPU in most machines, multi-CPU Ryzen motherboards don't seem to exist (yet?).

 CPUs seem to get the best Monero hashrate if you set them up for 1 thread per 2MB of cache on the CPU.

 GPUs - vary widely depending mostly on the model of the GPU.

Waste of time - current ASIC miners for X11, and the Baikal on X13, blow away any GPU.

 I'd recommend looking into other altcoins to mine, ETH works well on most AMD GPU models that have at least 3GB of RAM, ZEC works well on the others, for the 2 most common examples.

10% return per DAY was not achieveable during the PEAK PROFITABILITY of the last profitablity spike.

 DEFINITE SCAM.

 You will be competing with *3'd GENERATION* ASIC miners trying to do that - total waste of time.

 For comparison, your RX 480 *MIGHT* manage as high as 2 Megahahs/sec using 150 watts or so (my actual estimate would put it closer to 1.5 megahash).

 My A2 *2'nd GENERATION* ASIC manages 110 Megahash at 1250 watts - 55 TIMES the hashrate at less than 10 times the power - and MY units are not highly profitable at this time even with my very cheap electric cost.

 Current generation ASIC miners manage closer to 500 Megahash at around 800 watts.


 You should be looking at something like ETH or ZEC or such to mine, you might be able to make SOME coin that way.
 Trying to mine anything Scrypt on it is going to cost you quite a bit more in electric usage than the value of any coins you manage to mine - and solo-mining you'd have better odds buying a lottery ticket for Powerball.