Does that account for the diff drop when ZEC was launched? Without looking at charts Id bet the ETH diff dropped a good bit with ZEC and this increase we see now isnt even close to what it was pre ZEC.
That is right.
Topic: end of ETH mining on 2G cards - page 2. (Read 15887 times)
Does that account for the diff drop when ZEC was launched? Without looking at charts Id bet the ETH diff dropped a good bit with ZEC and this increase we see now isnt even close to what it was pre ZEC.
That is right.
Doesn't seem to have an effect yet. The difficulty is rising.
Does that account for the diff drop when ZEC was launched? Without looking at charts Id bet the ETH diff dropped a good bit with ZEC and this increase we see now isnt even close to what it was pre ZEC.
Doesn't seem to have an effect yet. The difficulty is rising.
I bought the 2gb cards because back in February who knew it would remain profitable this long. And the 4gb were mostly overpriced.
Same here. Now my farm is mostly made up of 2GB cards, I have one rig still hashing ETH and the rest on ZCash. Hopefully it stays profitable for awhile yet... I planned to be upgrading my cards/adding more this spring when people sell off gear after winter is over and when the new AMD cards come out.. Should be plenty of options on hardware, as long as there is a coin to mine at the time.
Is that still profitable now?
Depends on what cards you have and your electric cost. ZCash is dropping fast
I bought the 2gb cards because back in February who knew it would remain profitable this long. And the 4gb were mostly overpriced.
Same here. Now my farm is mostly made up of 2GB cards, I have one rig still hashing ETH and the rest on ZCash. Hopefully it stays profitable for awhile yet... I planned to be upgrading my cards/adding more this spring when people sell off gear after winter is over and when the new AMD cards come out.. Should be plenty of options on hardware, as long as there is a coin to mine at the time.
Is that still profitable now?
I bought the 2gb cards because back in February who knew it would remain profitable this long. And the 4gb were mostly overpriced.
Same here. Now my farm is mostly made up of 2GB cards, I have one rig still hashing ETH and the rest on ZCash. Hopefully it stays profitable for awhile yet... I planned to be upgrading my cards/adding more this spring when people sell off gear after winter is over and when the new AMD cards come out.. Should be plenty of options on hardware, as long as there is a coin to mine at the time.
I bought the 2gb cards because back in February who knew it would remain profitable this long. And the 4gb were mostly overpriced.
Then you were here before I was. I gave my advices to people looking to do as us and start mining in June or July with kind of cards.
I am pretty sure if he bought back in February he has already made ROI on those cards, probably 2-3 times over by now. I think it was close to 60-90 days back then to ROI on a full rig.
I had sold off most of my 2 GB cards on eBay but now I wish I hung on to them as you said, ZEC is making them quite profitable again.
I had sold off most of my 2 GB cards on eBay but now I wish I hung on to them as you said, ZEC is making them quite profitable again.
My lone R7 370 4GB has paid for itself in ~5.5 months (earned it's first ETH mid-May, and the 14th in late September. The rest of the system, not so much.
I bought the 2gb cards because back in February who knew it would remain profitable this long. And the 4gb were mostly overpriced.
You can use the 2GB cards for the ZCash mining. It will be mineable for very long term. You will get ROI.
I am pretty sure if he bought back in February he has already made ROI on those cards, probably 2-3 times over by now. I think it was close to 60-90 days back then to ROI on a full rig.
I had sold off most of my 2 GB cards on eBay but now I wish I hung on to them as you said, ZEC is making them quite profitable again.
I bought the 2gb cards because back in February who knew it would remain profitable this long. And the 4gb were mostly overpriced.
You can use the 2GB cards for the ZCash mining. It will be mineable for very long term. You will get ROI.
I bought the 2gb cards because back in February who knew it would remain profitable this long. And the 4gb were mostly overpriced.
It was a sure thing to happen, though it's sad. What I hope for you guys is that you'll find those cards another use and for all people I met here and to whom I recommended to don't buy 2 Gb cards that they listened to me !
Well I got them working again by running -eres 0.
It means it doesn't load the next 2 DAGs onto the memory, so I got 10 more days left of mining.
With the official miner probably another few DAGs along the way but I guess its bye bye 2GB.
It means it doesn't load the next 2 DAGs onto the memory, so I got 10 more days left of mining.
With the official miner probably another few DAGs along the way but I guess its bye bye 2GB.
I noticed a couple nights back I didn't have any of my 2GB cards in rigs I had gotten back online - and quickly fixed that.
Both of my single-card HD 7870 rigs DID work fine prior to the most recent epoch - but they were enough more profitable on ZEC that I slid them over to that and haven't looked back yet.
Given the 2GB issue appears to be hitting NOW (I'd neglected to consider the other stuff that has to go into the card's RAM) I might just leave them there.
I've also got my dual R9 280x rig on ZEC, as it's profitability ratio on ZEC/ETH is pretty much identical to the HD 7870 rigs - but that rig CAN go back as those are 3GB cards.
Been a busy week since I pulled the "in-wall electric heaters" and wired 220 outlets to their wiring to run some of my A2s on - I've actually got some POWER available again!
Both of my single-card HD 7870 rigs DID work fine prior to the most recent epoch - but they were enough more profitable on ZEC that I slid them over to that and haven't looked back yet.
Given the 2GB issue appears to be hitting NOW (I'd neglected to consider the other stuff that has to go into the card's RAM) I might just leave them there.
I've also got my dual R9 280x rig on ZEC, as it's profitability ratio on ZEC/ETH is pretty much identical to the HD 7870 rigs - but that rig CAN go back as those are 3GB cards.
Been a busy week since I pulled the "in-wall electric heaters" and wired 220 outlets to their wiring to run some of my A2s on - I've actually got some POWER available again!
Another 2GB stopped working today when we got Epoch #90.
It works until you re-start your program.
It works until you re-start your program.
I suspect it will become a real issue in a few months or so - and a lot of lower-end cards will move into ZEC or XMR or something where it's not an issue.
It's weeks, not months. It is impossible to allocate a 2GB DAG file on a 2GB card. Kernel code, OpenCL driver code to launch & control kernels, etc takes up memory. The light DAG (for on-GPU DAG generation) takes ~30MB as of the current epoch.
https://github.com/Genoil/cpp-ethereum/blob/master/libethash-cl/ethash_cl_miner.cpp#L442
Genoil's miner could be modified to release the light dag buffer after the DAG is generated, but that would only help for a few more epochs. I don't think it is worth the trouble, and I'm pretty sure JW isn't going to bother either.
I'll use my 2GB R7 370's for ZEC. I only have one 2GB R9 380, which isn't much better than a 370 for ZEC, so I'll just sell it.
For these cards, they are more efficient to mine the ZEC any way. So let the RX 470 and 480 mine the ETH.
I suspect it will become a real issue in a few months or so - and a lot of lower-end cards will move into ZEC or XMR or something where it's not an issue.
It's weeks, not months. It is impossible to allocate a 2GB DAG file on a 2GB card. Kernel code, OpenCL driver code to launch & control kernels, etc takes up memory. The light DAG (for on-GPU DAG generation) takes ~30MB as of the current epoch.
https://github.com/Genoil/cpp-ethereum/blob/master/libethash-cl/ethash_cl_miner.cpp#L442
Genoil's miner could be modified to release the light dag buffer after the DAG is generated, but that would only help for a few more epochs. I don't think it is worth the trouble, and I'm pretty sure JW isn't going to bother either.
I'll use my 2GB R7 370's for ZEC. I only have one 2GB R9 380, which isn't much better than a 370 for ZEC, so I'll just sell it.
set the environment variables
I don't set the environment variables with my R7 370's mining eth if i mine them, mostly i mine Zec but I had set them with my 7870 when i had it, if i wanted to mine ETH with that card and both cards have 2 gb, i guess Ive been lucky with the 370 .
I don't set the environment variables with my R7 370's mining eth if i mine them, mostly i mine Zec but I had set them with my 7870 when i had it, if i wanted to mine ETH with that card and both cards have 2 gb, i guess Ive been lucky with the 370 .
You also need to set the environment variables as posted above.
I have NOT run into this issue with the environment variables set.
Yet.
I suspect it will become a real issue in a few months or so - and a lot of lower-end cards will move into ZEC or XMR or something where it's not an issue.
It IS kinda funny watching one of my HD 7750 cards with 1GB mining ZEC just fine - 44/sec isn't impressively scary but not bad for a card that paid for itself via LiteCoin mining years ago.
[edit] it's even funnier watching one of my A10-7860K mining ZEC - at a whopping 11/sec with only 512 MB allocated to it. Not really WORTH enough to leave it that way but I decided to experiment in the hopes it would be closer to the HD 7750 on performance (same # cores, newer GCN version, but much slower RAM).
Funny part - it's probably closer to making up the electric usage on it's GPU section than the 7750 is.
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