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Author Topic: EWBF's CUDA Zcash miner  (Read 1347388 times)
lucasan123
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December 18, 2016, 12:25:27 AM
 #461

280 sols with gtx 980 ti. nicehash is making 325............ but not so bad  .......... less power used

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wll1rah
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December 18, 2016, 03:35:42 AM
 #462

Why not buy a new card instead of hassle with outdated hardware and make a problem of not supporting a device that even nvidia dropped long long time ago.

Because Nvidia keeps putting them out Fermi based cards in the OEM market, so people are bound to have them.
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December 18, 2016, 06:20:29 AM
 #463

Looks like best results come from running 4 instances. Definitely something needs to be toned up as far as GPU utilization. There is basically 15% overhead the miner isn't taking advantage of for some reason. You can reach EQM speeds by running this many instances. Even just two instances is a huge boost (10%) compared to running one.

I buy private Nvidia miners. Send information and/or inquiries to my PM box.
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December 18, 2016, 06:48:55 AM
 #464

Why not buy a new card instead of hassle with outdated hardware and make a problem of not supporting a device that even nvidia dropped long long time ago.


 Do keep in mind that a lot of us have EXISTING hardware on hand we'd like to mine more efficiently with, and don't see any reason to toss out working hardware just to spend $$$ on new stuff.
 There are also the SMALL miners that can't afford to casually just "buy a new card".


 Also keep in mind that AMD in particular had *3 generations* of "new" stuff that was no more than a bios refresh + slightly faster RAM with NO CHANGE TO THE ACTUAL GPU for most of the cards in the "new" line.
 (HD 7750/7770/78xx/79xx series, R5/7/9 2xx series, R5/7/9 3xx series - each generation only added 1 or 2 actual NEW gpu chips, usually at the top-end of the new line).

 Some of the R9 3xx series IS STILL IN PRODUCTION as AMD hasn't released their RX 4xx series replacements yet - which makes cards like the HD 7970 and 7950 arguably still current, and DEFINITELY the HD 7990.
 They also haven't released replacements for the bottom-end cards, so my HD 7750 is arguably still a CURRENT GPU (not one a miner should go out to buy, but since I have them on hand already no point in not USING them and achieving even MORE profit past the ROI they managed years ago).


 As far as the GPU goes, my HD 7870 is in actual FACT only one generation behind current, even if it's OFFICIALLY 4 generations old and 3-4 years out of production - and my R9 290s blow away ANY RX SERIES CARD that has been released to date on hashrate on pretty much ANY coin despite having been "dropped years ago".



Viperho
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December 18, 2016, 07:00:33 AM
 #465


THANKS so much for this. really quick, it is appreciated!
bensam1231
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December 18, 2016, 07:25:37 AM
 #466

Why not buy a new card instead of hassle with outdated hardware and make a problem of not supporting a device that even nvidia dropped long long time ago.


 Do keep in mind that a lot of us have EXISTING hardware on hand we'd like to mine more efficiently with, and don't see any reason to toss out working hardware just to spend $$$ on new stuff.
 There are also the SMALL miners that can't afford to casually just "buy a new card".


 Also keep in mind that AMD in particular had *3 generations* of "new" stuff that was no more than a bios refresh + slightly faster RAM with NO CHANGE TO THE ACTUAL GPU for most of the cards in the "new" line.
 (HD 7750/7770/78xx/79xx series, R5/7/9 2xx series, R5/7/9 3xx series - each generation only added 1 or 2 actual NEW gpu chips, usually at the top-end of the new line).

 Some of the R9 3xx series IS STILL IN PRODUCTION as AMD hasn't released their RX 4xx series replacements yet - which makes cards like the HD 7970 and 7950 arguably still current, and DEFINITELY the HD 7990.
 They also haven't released replacements for the bottom-end cards, so my HD 7750 is arguably still a CURRENT GPU (not one a miner should go out to buy, but since I have them on hand already no point in not USING them and achieving even MORE profit past the ROI they managed years ago).


 As far as the GPU goes, my HD 7870 is in actual FACT only one generation behind current, even if it's OFFICIALLY 4 generations old and 3-4 years out of production - and my R9 290s blow away ANY RX SERIES CARD that has been released to date on hashrate on pretty much ANY coin despite having been "dropped years ago".

If you were a real miner you should be doing research before you make a purchase and not just pick something out of the trash regardless of how little money you have and expect it to work like a top tier piece of hardware. The same can be said about people who are buying four year old AMD hardware and expecting it to hash as fast and be as efficient as brand new AMD hardware because someone recommended them buying a $80 7970 off of eBay. Sadly Ethereum has given people a false sense of profitability concerning older hardware due to the unique way it hashes. As we get closer and closer to electricity cost efficiency is going to matter a lot more and there are going to be a lot of disgruntled miners turning off their rigs.

This has already happened before at the end of '14, beginning of '15 and if you've did your research you would have also figured that out.

That aside, this is a Nvidia thread, it doesn't matter what AMD is doing on the other side of the spectrum. Nvidia hardware has had new architecture with every new GPU generation (putting aside super low end cards). The only cross generation weirdness was the 750ti which was Maxwell regardless of branding. Coming in here and talking about AMD cards and what's happening with AMD doesn't apply to Nvidia.

I buy private Nvidia miners. Send information and/or inquiries to my PM box.
bensam1231
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December 18, 2016, 08:42:26 AM
 #467

I also want to report there is a weird ass bug that's been plaguing this miner since the beginning, it still doesn't look like it's fixed. If you have a six GPU rig, one of the GPUs will sometimes hash 20% slower then all the other GPUS. It doesn't really make sense what causes it to happen. I can't figure it out even on virtually identical systems except for GPU brands. I have a couple systems like this.

Oh and add the ability to run multiple threads from the same miner.

I buy private Nvidia miners. Send information and/or inquiries to my PM box.
QuintLeo
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December 18, 2016, 10:25:20 AM
 #468


If you were a real miner you should be doing research before you make a purchase


 You keep ASSuming that all miners "purchase" all of their gear to mine with, as opposed to the LARGE number of us that already had EXISTING gear we put (or put BACK) into Mining service once something came up it was profitable on.

 This is just as applicable to NVidia as to AMD, though NVidia has rarely been competative on mining vs AMD and there is a lot less "older" NVidia gear around used for mining with as a result. (in my case, 2x GTX 960, 3 x GTX 950, and 2 x GTX 750 Ti on the NVidia side as opposed to 5 x HD 7750, 2 x 7870, and a 7850 on the AMD side - but I'm probably a rarity in having comparable numbers of GPU on each side when the current ETH/ETC/XMR/ZEC/etc period of profitability began).


 On the other hand, NVidia's "new GPU architecture with each generation" was nothing more than a minor rehash and usually a "more cores on the top end" change, the only REAL difference is they "officially" changed their silicon on their various 28nm generations - with similar performance gains (small and mostly due to faster memory being available) vs the contemporary AMD generations. Their only BIG change during the GPU mining years has been the move to 14/16nm with Pascal vs the previous generations - they just did a better job HIDING that fact vs AMD's "rebranding" on THEIR GCN 28nm generations.
 AMD's move to GCN vs the older Terrascale was a much bigger change in architecture than anything NVidia in that period prior to Maxwell.

 I never did understand why NVidia labeled the 750 as the same generation as the older 7xx stuff - by rights it should have been the GTX 940.
 On the other hand, AMD should have changed their generation numbers when they moved to GCN, instead of having quite a few of their 7xxx series be Terrascale and the rest GCN.


 BTW - I make my entire living from mining, if that's not "real" then you have a really wierd definition of "real".



 I'm fully aware of the GPU bust from a couple years back - I had quite a bit of gear left over from mining Litecoin and X11 days, but instead of selling it off I just started using it for what I'd ORIGINALLY bought most of it for prior to my ever hearing of Bitcoin much less Litecoin. I "did my research" back THEN when I was part of that history.




wll1rah
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December 18, 2016, 10:27:44 AM
 #469

Why not buy a new card instead of hassle with outdated hardware and make a problem of not supporting a device that even nvidia dropped long long time ago.


 Do keep in mind that a lot of us have EXISTING hardware on hand we'd like to mine more efficiently with, and don't see any reason to toss out working hardware just to spend $$$ on new stuff.
 There are also the SMALL miners that can't afford to casually just "buy a new card".


 Also keep in mind that AMD in particular had *3 generations* of "new" stuff that was no more than a bios refresh + slightly faster RAM with NO CHANGE TO THE ACTUAL GPU for most of the cards in the "new" line.
 (HD 7750/7770/78xx/79xx series, R5/7/9 2xx series, R5/7/9 3xx series - each generation only added 1 or 2 actual NEW gpu chips, usually at the top-end of the new line).

 Some of the R9 3xx series IS STILL IN PRODUCTION as AMD hasn't released their RX 4xx series replacements yet - which makes cards like the HD 7970 and 7950 arguably still current, and DEFINITELY the HD 7990.
 They also haven't released replacements for the bottom-end cards, so my HD 7750 is arguably still a CURRENT GPU (not one a miner should go out to buy, but since I have them on hand already no point in not USING them and achieving even MORE profit past the ROI they managed years ago).


 As far as the GPU goes, my HD 7870 is in actual FACT only one generation behind current, even if it's OFFICIALLY 4 generations old and 3-4 years out of production - and my R9 290s blow away ANY RX SERIES CARD that has been released to date on hashrate on pretty much ANY coin despite having been "dropped years ago".

If you were a real miner you should be doing research before you make a purchase and not just pick something out of the trash regardless of how little money you have and expect it to work like a top tier piece of hardware. The same can be said about people who are buying four year old AMD hardware and expecting it to hash as fast and be as efficient as brand new AMD hardware because someone recommended them buying a $80 7970 off of eBay. Sadly Ethereum has given people a false sense of profitability concerning older hardware due to the unique way it hashes. As we get closer and closer to electricity cost efficiency is going to matter a lot more and there are going to be a lot of disgruntled miners turning off their rigs.

This has already happened before at the end of '14, beginning of '15 and if you've did your research you would have also figured that out.

That aside, this is a Nvidia thread, it doesn't matter what AMD is doing on the other side of the spectrum. Nvidia hardware has had new architecture with every new GPU generation (putting aside super low end cards). The only cross generation weirdness was the 750ti which was Maxwell regardless of branding. Coming in here and talking about AMD cards and what's happening with AMD doesn't apply to Nvidia.
Nvidia's 6xx and 7xx series both are built on Kepler and Fermi was 9xxx to 5xx series, you really need to read more if you think Maxwell 75x to 9xx are the only cross over GPU's with Nvidia.  Hell the GTX 1050/ti only real change is die size and a few memory optimaztions.
jiggytom
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December 18, 2016, 03:00:05 PM
 #470

I'm not seeing that issue on my 6x1070 rig or another mixed rig.

I also want to report there is a weird ass bug that's been plaguing this miner since the beginning, it still doesn't look like it's fixed. If you have a six GPU rig, one of the GPUs will sometimes hash 20% slower then all the other GPUS. It doesn't really make sense what causes it to happen. I can't figure it out even on virtually identical systems except for GPU brands. I have a couple systems like this.

Oh and add the ability to run multiple threads from the same miner.

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nevermind41
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December 18, 2016, 03:24:37 PM
 #471

@bensam1231
 When you are using remote connection software (like teamviewer) you can live some hashrate drops. Did you checked that which gpu is slow then the others? zec algorithm is hungry to gpu. Maybe your psu isn't enough for 6 X 1070??? What is the current clock speeds of the gpu when you live this problem? and also gpu and mem controller load ratio?
ioglnx
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December 18, 2016, 03:38:58 PM
 #472

I also want to report there is a weird ass bug that's been plaguing this miner since the beginning, it still doesn't look like it's fixed. If you have a six GPU rig, one of the GPUs will sometimes hash 20% slower then all the other GPUS. It doesn't really make sense what causes it to happen. I can't figure it out even on virtually identical systems except for GPU brands. I have a couple systems like this.

Oh and add the ability to run multiple threads from the same miner.

Its due to signal processing of monitor signal. I noticed that to when I disconnect the monitor or turn it of..the hash increases on this card. But since I have this miner the diff is just 1-2h not that much it behaves better than many others. Maybe you need also to check the nvdia system setting and enable the max. perf setting..this also helped in certain cases for my setups. Give it a try if not already done.

GTX 1080Ti rocks da house... seriously... this card is a beast³
Owning by now 18x GTX1080Ti :-D @serious love of efficiency
bensam1231
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December 18, 2016, 05:13:57 PM
 #473


If you were a real miner you should be doing research before you make a purchase


 You keep ASSuming that all miners "purchase" all of their gear to mine with, as opposed to the LARGE number of us that already had EXISTING gear we put (or put BACK) into Mining service once something came up it was profitable on.

 This is just as applicable to NVidia as to AMD, though NVidia has rarely been competative on mining vs AMD and there is a lot less "older" NVidia gear around used for mining with as a result. (in my case, 2x GTX 960, 3 x GTX 950, and 2 x GTX 750 Ti on the NVidia side as opposed to 5 x HD 7750, 2 x 7870, and a 7850 on the AMD side - but I'm probably a rarity in having comparable numbers of GPU on each side when the current ETH/ETC/XMR/ZEC/etc period of profitability began).

 On the other hand, NVidia's "new GPU architecture with each generation" was nothing more than a minor rehash and usually a "more cores on the top end" change, the only REAL difference is they "officially" changed their silicon on their various 28nm generations - with similar performance gains (small and mostly due to faster memory being available) vs the contemporary AMD generations. Their only BIG change during the GPU mining years has been the move to 14/16nm with Pascal vs the previous generations - they just did a better job HIDING that fact vs AMD's "rebranding" on THEIR GCN 28nm generations.
 AMD's move to GCN vs the older Terrascale was a much bigger change in architecture than anything NVidia in that period prior to Maxwell.

 I never did understand why NVidia labeled the 750 as the same generation as the older 7xx stuff - by rights it should have been the GTX 940.
 On the other hand, AMD should have changed their generation numbers when they moved to GCN, instead of having quite a few of their 7xxx series be Terrascale and the rest GCN.

 BTW - I make my entire living from mining, if that's not "real" then you have a really wierd definition of "real".

 I'm fully aware of the GPU bust from a couple years back - I had quite a bit of gear left over from mining Litecoin and X11 days, but instead of selling it off I just started using it for what I'd ORIGINALLY bought most of it for prior to my ever hearing of Bitcoin much less Litecoin. I "did my research" back THEN when I was part of that history.

Good amount of unnecessary spacing for the win, right?

Unless you have boxes of 7970s laying around(!?!?!) you're in the extreme minority. That is to say you don't fucking matter. All the other points hold true. The random guy trying to mine on his six year old laptop or random card he upgraded from is not the forefront of development effort for devs on here. You know why? Because legitimate miners are actually using hardware that is recent and they have a lot of hashing power. Whether or not you can make $.10 per day doesn't matter around here. Put your card on eBay and let a big miner swallow it up.

Rarely competitive vs AMD? You mean like NeoS, Lyra, Quark (before it was ASIC'd), Library and all the other algos you don't mine because AMD hardware isn't competitive on them. Ethereum is a niche case scenario when it comes to the world of cryptos. It is literally the one algo that is so memory bus restricted it literally strangles any GPUs put on it and can't be improved. Even Equihash is showing some individuals who thought hardware couldn't break 200 sols and then Nvidia hardware couldn't break 200 sols, this isn't fucking Ethereum. It's not completely bus limited, you can check out your MCU usage on powerful cards... Nvidia hardware still has a lot to go as far as that goes.

Now you're just talking semantics. They redesign their chips and it doesn't count? Sorry, but I'm calling bullshit on that one. Visit any real hardware website that's not trying to shovel self supporting agendas down your throat (BCT) and you know that's not true. Maxwell and Pascal have both had relatively good support on Nvidias side of things for mining (when devs develop for Nvidia). Anything older then that people should be happy if miners work for it.

If you live off $.1 a day then that's amazing, otherwise we have some discrepancies here. On one hand you're toting your old ass hardware that you want to be brand spanking new and just as efficient as recent hardware as 'stuff you have laying around' and on the other now you're saying you have boxes of them? This goes back to my original point that you made misinformed purchases and now you're getting pissy as we're approaching electrical cost and want devs to spend extra time specifically on your shitty hardware.

So curiously if you have boxes of GPUs laying around, what did you use it for during the time when it's unprofitable? Oh you powered it down for a year? Do you know what opportunity cost is? Although since you did your research back then, you should probably be pretty happy that it's lasted this long and you're ready to sell it to buy new stuff.

I also want to report there is a weird ass bug that's been plaguing this miner since the beginning, it still doesn't look like it's fixed. If you have a six GPU rig, one of the GPUs will sometimes hash 20% slower then all the other GPUS. It doesn't really make sense what causes it to happen. I can't figure it out even on virtually identical systems except for GPU brands. I have a couple systems like this.

Oh and add the ability to run multiple threads from the same miner.

Its due to signal processing of monitor signal. I noticed that to when I disconnect the monitor or turn it of..the hash increases on this card. But since I have this miner the diff is just 1-2h not that much it behaves better than many others. Maybe you need also to check the nvdia system setting and enable the max. perf setting..this also helped in certain cases for my setups. Give it a try if not already done.

Yeah I figured this out last night, it's just when a monitor is connected. This doesn't happen on other miners though like EQM.

I buy private Nvidia miners. Send information and/or inquiries to my PM box.
ioglnx
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December 18, 2016, 05:22:46 PM
 #474


If you were a real miner you should be doing research before you make a purchase


 You keep ASSuming that all miners "purchase" all of their gear to mine with, as opposed to the LARGE number of us that already had EXISTING gear we put (or put BACK) into Mining service once something came up it was profitable on.

 This is just as applicable to NVidia as to AMD, though NVidia has rarely been competative on mining vs AMD and there is a lot less "older" NVidia gear around used for mining with as a result. (in my case, 2x GTX 960, 3 x GTX 950, and 2 x GTX 750 Ti on the NVidia side as opposed to 5 x HD 7750, 2 x 7870, and a 7850 on the AMD side - but I'm probably a rarity in having comparable numbers of GPU on each side when the current ETH/ETC/XMR/ZEC/etc period of profitability began).


 On the other hand, NVidia's "new GPU architecture with each generation" was nothing more than a minor rehash and usually a "more cores on the top end" change, the only REAL difference is they "officially" changed their silicon on their various 28nm generations - with similar performance gains (small and mostly due to faster memory being available) vs the contemporary AMD generations. Their only BIG change during the GPU mining years has been the move to 14/16nm with Pascal vs the previous generations - they just did a better job HIDING that fact vs AMD's "rebranding" on THEIR GCN 28nm generations.
 AMD's move to GCN vs the older Terrascale was a much bigger change in architecture than anything NVidia in that period prior to Maxwell.

 I never did understand why NVidia labeled the 750 as the same generation as the older 7xx stuff - by rights it should have been the GTX 940.
 On the other hand, AMD should have changed their generation numbers when they moved to GCN, instead of having quite a few of their 7xxx series be Terrascale and the rest GCN.


 BTW - I make my entire living from mining, if that's not "real" then you have a really wierd definition of "real".



 I'm fully aware of the GPU bust from a couple years back - I had quite a bit of gear left over from mining Litecoin and X11 days, but instead of selling it off I just started using it for what I'd ORIGINALLY bought most of it for prior to my ever hearing of Bitcoin much less Litecoin. I "did my research" back THEN when I was part of that history.


Not our fault if you don't have a job to make your income. And you mix things in your argumentation not worth going into them..you miss the point. but nevertheless those compute 2.0 guys got what they were crying for.

GTX 1080Ti rocks da house... seriously... this card is a beast³
Owning by now 18x GTX1080Ti :-D @serious love of efficiency
giagge
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December 18, 2016, 05:40:49 PM
 #475

For use 1 only nvidia card ? --cd 0 , dont work .


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jiggytom
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December 18, 2016, 05:48:57 PM
 #476

For use 1 only nvidia card ? --cd 0 , dont work .

--cuda_devices 0

... PLAY SHARE EARN...
.LBRY...
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December 18, 2016, 07:33:23 PM
 #477

For use 1 only nvidia card ? --cd 0 , dont work .

-cd not "--cd"
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December 18, 2016, 10:24:52 PM
 #478


If you were a real miner you should be doing research before you make a purchase


 You keep ASSuming that all miners "purchase" all of their gear to mine with, as opposed to the LARGE number of us that already had EXISTING gear we put (or put BACK) into Mining service once something came up it was profitable on.

 BTW - I make my entire living from mining, if that's not "real" then you have a really wierd definition of "real".



Not our fault if you don't have a job to make your income. And you mix things in your argumentation not worth going into them..you miss the point. but nevertheless those compute 2.0 guys got what they were crying for.

 My mining is real enough I don't NEED a job to support it.

 My point is that y'all keep missing the point because of your BAD ASSUMPTION.

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December 18, 2016, 10:41:07 PM
 #479


If you were a real miner you should be doing research before you make a purchase


 You keep ASSuming that all miners "purchase" all of their gear to mine with, as opposed to the LARGE number of us that already had EXISTING gear we put (or put BACK) into Mining service once something came up it was profitable on.


 BTW - I make my entire living from mining, if that's not "real" then you have a really wierd definition of "real".


Good amount of unnecessary spacing for the win, right?

Unless you have boxes of 7970s laying around(!?!?!) you're in the extreme minority. That is to say you don't fucking matter. All the other points hold true. The random guy trying to mine on his six year old laptop or random card he upgraded from is not the forefront of development effort for devs on here. You know why? Because legitimate miners are actually using hardware that is recent and they have a lot of hashing power. Whether or not you can make $.10 per day doesn't matter around here. Put your card on eBay and let a big miner swallow it up.

Rarely competitive vs AMD? You mean like NeoS, Lyra, Quark (before it was ASIC'd), Library and all the other algos you don't mine because AMD hardware isn't competitive on them. Ethereum is a niche case scenario when it comes to the world of cryptos. It is literally the one algo that is so memory bus restricted it literally strangles any GPUs put on it and can't be improved. Even Equihash is showing some individuals who thought hardware couldn't break 200 sols and then Nvidia hardware couldn't break 200 sols, this isn't fucking Ethereum. It's not completely bus limited, you can check out your MCU usage on powerful cards... Nvidia hardware still has a lot to go as far as that goes.

Now you're just talking semantics. They redesign their chips and it doesn't count? Sorry, but I'm calling bullshit on that one. Visit any real hardware website that's not trying to shovel self supporting agendas down your throat (BCT) and you know that's not true. Maxwell and Pascal have both had relatively good support on Nvidias side of things for mining (when devs develop for Nvidia). Anything older then that people should be happy if miners work for it.

If you live off $.1 a day then that's amazing, otherwise we have some discrepancies here. On one hand you're toting your old ass hardware that you want to be brand spanking new and just as efficient as recent hardware as 'stuff you have laying around' and on the other now you're saying you have boxes of them? This goes back to my original point that you made misinformed purchases and now you're getting pissy as we're approaching electrical cost and want devs to spend extra time specifically on your shitty hardware.

So curiously if you have boxes of GPUs laying around, what did you use it for during the time when it's unprofitable? Oh you powered it down for a year? Do you know what opportunity cost is? Although since you did your research back then, you should probably be pretty happy that it's lasted this long and you're ready to sell it to buy new stuff.


 I use spacing to improve legibility.
 Ironical how the very post you complain about my use of it had even more of it than I use.

 NeoS and LBRY as far as I know has never been particularly profitable IF at all.
 Lyra is long dead, LyraRE2 has low profitability some of the time but would likely be ignored by most if NiceHash didn't support it.
 Quark was never profitable enough to be worth mining even before the ASIC invasion.

 ETH / ETC are a rare case but not unique, XMR is also very memory bus limited and ZEC to a lesser degree.

 I pointed out Maxwell was their first SERIOUS redesign (minor changes to support faster memory isn't a serious redesign, AMD didn't need to do THAT much for 3 generations of cards) in all of their 28nm "generations", excluding adding usually one "more cores" high end design (same thing AMD did).
 There's a big difference between claiming "major new improvements" and actually delivering them.

 I don't live off 10 cents per day, or even 10 dollars per day, or even close to that.
 That's not even a good strawman argument, it's nothing more than a rude insult.

 As far as what my AMD and NVidia hardware was doing between "profitable mining" timeframes, I'm a VERY long-term participant in the distributed.net project (where AMD dominates) and a fairly long-term participant in Folding@Home (where NVidia dominates). Most of the hardware I mined Scrypt with before ASIC took over was repurposed from dnet work, and the money I earned from that Scrypt work mostly went into funding more AMD card purchases intended for later DNet work (which worked out nicely).



 The core POINT is that "just because a card is old doesn't make it worthless and unworthy of mining on" - especially when a lot of those "old cards" can match or beat the performance of many CURRENT cards.
 
vapourminer
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what is this "brake pedal" you speak of?


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December 18, 2016, 11:18:07 PM
 #480

As far as what my AMD and NVidia hardware was doing between "profitable mining" timeframes, I'm a VERY long-term participant in the distributed.net project (where AMD dominates) and a fairly long-term participant in Folding@Home (where NVidia dominates). Most of the hardware I mined Scrypt with before ASIC took over was repurposed from dnet work, and the money I earned from that Scrypt work mostly went into funding more AMD card purchases intended for later DNet work (which worked out nicely).

funny how some folks think of gpus as only money makers, game cards or obsolete.

f@h got use of a lot of my crypto cards as some coins dried up. and vise versa of course as new coins popped in.
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