You can mix cards, but as a general rule you have a lot fewer issues if you stay within the same generation of card (for this purpose, AMD R9 2xx and 3xx cards count as the same generation, as they were mostly just relabeled varients of the same cards with a bit of BIOS mods, ditto the HD77xx/79xx cards to the R9 2xx).
Mixing AMD and NVidia on the same machine can be done, but it's NOT particularty easy and can be a real nightmare to troubleshoot.
NOT RECOMMENDED.
Do NOT try to mix pre-GCN AMD cards (or IGUs) with GCN cards (or IGUs) - they do NOT mix and match at all as the archetectures are totally different and the drivers get totally messed up if you try to do so.
At BEST, you end up not seeing some of the cards (or IGU) 'cause the drivers are working in the "other mode" with the rest.
Not only NOT RECOMMENDED, but specifically JUST DON'T WASTE TIME TRYING TO DO IT.
Thank you very much for this very clear explanation. I guess that putting RX 480 in my R9 380 setup is a bad idea and that R7 370 will work fine. Right ? I'd recommend against mixing RX480 with any previous cards - they're a major change from anything older and such a mix will likely won't be a particularly stable system. 380 and 370 should play well together. Trying to run multiple drivers for the same brand is NOT going to work - at best, the "additional" drivers will be ignored, if they're not they ARE going to cause major instability and crashes if the system even comes up at all. I'm pretty sure you have to run something more recent than the 15.12 Catalyst drivers with a RX480 in the system, as those drivers predate the card by a few months. |
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currently a $800 system with a single 1070 can give you around $200 per month, so roi in 4 months, but you need to remove electricity
You guys seems not understanding me... I need a mining hardware that can cost $200 or less to buy and not $200 ROI. You aren't buying ANYTHING new for $200 - flat out CAN'T build a system that cheap - that is going to mine worth anything if at all. It's a bit of a pain building even a LOW END computer system for under $300 - and that's using an APU with very low-end graphics that isn't going to mine much of anything. You need to adjust your expectations on cost a LOT, as your currently expressed intent is 100% UNREALISTIC. |
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If the integrated graphics are also AMD and are same-gen (GCN with GCN, VLW with VLW (sp?) ), you can - but not on Ethereum as it requires more memory on the GPU than any AMD integrated unit can access to date.
Performance is going to be low though even on other cryptocurrencies, due to the APU running on much slower memory and tending to have low core count and low clock rates.
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In my experience, XFX is a low-to-mid range manufacturer.
Not someone to completely avoid, but not as well built/designed as the top-tier cards tend to be.
Power Color is BOTTOM tier cheap - might last a while if you don't even wave the thought of overclocking at them IF you're a bit lucky.
IMO stick with the better folks for mining, Sapphire Gigabyte EVGA perhaps MSI.
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You can mix cards, but as a general rule you have a lot fewer issues if you stay within the same generation of card (for this purpose, AMD R9 2xx and 3xx cards count as the same generation, as they were mostly just relabeled varients of the same cards with a bit of BIOS mods, ditto the HD77xx/79xx cards to the R9 2xx).
Mixing AMD and NVidia on the same machine can be done, but it's NOT particularty easy and can be a real nightmare to troubleshoot.
NOT RECOMMENDED.
Do NOT try to mix pre-GCN AMD cards (or IGUs) with GCN cards (or IGUs) - they do NOT mix and match at all as the archetectures are totally different and the drivers get totally messed up if you try to do so.
At BEST, you end up not seeing some of the cards (or IGU) 'cause the drivers are working in the "other mode" with the rest.
Not only NOT RECOMMENDED, but specifically JUST DON'T WASTE TIME TRYING TO DO IT.
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I think if we use ubuntu it's not effective, because for maintenance is very high
No clue what you're talking about - Ubuntu, like most LINUX distributions, is free and the updates are also free. There is no "maintainance" that is very high on it. |
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Sat ping usually ran around 600ms, sometimes as high as 700, under light loading.
Heavy torrent usage or big game patches would send it up past 1 second intermittantly.
3g ping varied a lot, at best around 150ms but if the connection was loaded at all it would hit multi-seconds a lot.
No clue what you mean by "96% signal strength", my 3g signal was commonly 3 bars on a 6-bar device, occasionally 2 bars.
Perhaps you're reading a -dbm figure as if it was percent? In that case, I think I was normally seeing ballpark -100 dbm most of the time, give or take about 5.
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Can a mining farm still break even with S7s nowadays? Electricity cost and increased mining difficulty has made it a very daunting task to accomplish.
9 cent power no 5 cent power maybe 3 cent power yes 3 cent power, the only places I can think of are in the middle east or certain areas in Africa, definitely other cost come in at that point. Chelan and Douglass counties in Central Washington for small miners, add Grant County if you can get to the 200KW+ consumption range to get on it's low-end "industrial" rate ("general" business and residential rates are closer to 4.5 in Grant, but the RENT rates and availability is a lot better than in Chelan or Douglass). It's not all that cool in the summer, but it's DRY which makes evap cooling practical. |
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DASH has their own forum, not a lot of talk about it here much less support.
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It's not really changed much from early days - only ACTUAL change is use the most recent version of whichever miner you chose to run with.
Ubuntu 14.04 is still the "go to" distribution for mining.
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You can't compare S3/S3+ with the S5, S7 & S9. My S5 went up in flames after less than 5 months in operation. My S3 and S3+ are still in operation, they are built like tanks, not so with the S5, S7 & S9 which are based on string design, very weak design based on cost cutting measures not built for long term operation.
Your esperience with the S5 is rare - there are a LOT of S5 units out there that have been hashing away for YEARS without issues. Just don't try to play games making them quiet - keep the original fan OR A FAN WITH EQUAL-TO-HIGHER-FLOW set up to run at full speed and they LAST a long time. |
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I wish I had gotten 1.5 Mb/s out of my old 3G connection - it struggled most of the time to achieve 400 Kb/s.
And yes, I did see more stales and such even when I upgraded to Exede Sat service (12Mb/s, though due to MY hardware limits I only saw 8.5-9) when I would run torrents or patch games.
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With the recent runup in Bitcoin price, I find that an S5 earns about $1/day NET of electric at the electric rate I am currently at.
No idea how long that will last, but on the other hand there are other areas of the US that have somewhat better rates for us SMALL miners than where I ended up at.
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Does Bitcoinwisdom still use the old block reward for litecoin?
They do, though it's easy to fix. I suspect the owner of the site has either been way too busy, or just doesn't care enough about the site any more, to fix the block rewards. It would also be nice if they would update their markets selection on the main page. The flexability still makes it my favorite calculator by a wide margin. |
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Don't hold your breath for the Avalon 7.
(1) Caanan was VERY late to even start development on 14/16nm - they'll get there per their latest announcements, BUT
(2) There is some significant question if their new owner will let them continue to sell to the public (no definitive announcement either way on that).
I'd guess 4Q and likely LATE 4Q for an Avalon 7 to go on sale, IF it happens.
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Try it at 3 cents/KWH - I think it might still eeek out a tiny profit with the recent Bitcoin price runup.
7 cents is a goood bit below average, but nowhere near the lowest cost for electric available in some areas.
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The bulk of Doge is merge-mined from something else (probably Litecoin for the most part) any more.
Been that way for several months, perhaps a year - I forget when Doge moved to "mergeable" offhand.
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The best choice is to build the rig so you can use it for something ELSE in a few months when Ethereum goes unprofitable for you.
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Just wondering what kind of band width is needed for mining.
Not much - I was on a 12Mbp/s download speed sat connection with a 10GB/month cap and never came close to the cap from mining - I think I MIGHT have been going through as much as 1 Gig/month but that was with up to 14 ASIC devices AND 7 or 8 Ethereum-mining computers running at the same time. I also mined for a while on a 3G Cell connection (was LUCKY when I saw better than 400kb/s DOWNLOAD speeds on that thing) - no issues, and lower reject rate as the lag was a good bit lower most of the time. I suspect your "lag" issue is something else. I used to see my reject rate go WAY up when I was downloading a large game patch, for example (World of Tanks was particularly bad about that). |
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Cutting to the chase, I just wanna know if it's profitable trying to mine altcoins with an USB ASIC.
The Moonlander for Scrypt is probably the closest to a profitable USB-type plug-in device. In THEORY, some of the "plugs into a USB port" ASIC that aren't just a dongle-sized device like the Gridseed 80 blades MIGHT make a profit - if you have VERY VERY cheap electrc - but the profit would be very small and the majority of your mining income would be paying the electric bill. |
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