Claymore's ZCash/BTG AMD GPU Miner v12.6 (Windows/Linux)

[anticlimax]

At what max temps should I keep my R9 390s?
At what temps do you keep them?

Anyone has any good BIOS mod for them?

in general is the rule, low temps are prolonging the lifespan of the components.... (heat kills them..)

so try to get them as cold as you are possible, in the cost efficient way...

my temps are between 52°C - 71°C ...(fans between 70%-75%)

try to make the best airflow in the rig, and place the GPUs properly.. idk how much space u have..

With 52c and 70% fan speed, you will be replacing a lot of fans with no gain in longevity.
Use box fans and try to turn down the gpu fans to 40-50%.
Anything under 80c will work for years.

[ffthomas]

Hey Claymore, ever since I've started to use the new v8, I've been facing many crashes while using Photoshop or any other such software. It's really annoying and I've tried all the possible intensities as well as other overclocking stuff, but unable to fix it. One thing I've done along the usage of your new version is the driver update. Do you think that it could be happening because of the new driver version of Crimson or is it any known issue of your new miner's version?

Using RX 480's by the way...

You cannot use your rig while mining.
Just let your Machine to Mine only thats it  

..or you can stop mining only for 1 card (use the numbers on your keyboard to turn on/off mining on each card) and you get the resources you need. the other cards can work on mining onwards.

[Altcoining]

Hey Claymore, ever since I've started to use the new v8, I've been facing many crashes while using Photoshop or any other such software. It's really annoying and I've tried all the possible intensities as well as other overclocking stuff, but unable to fix it. One thing I've done along the usage of your new version is the driver update. Do you think that it could be happening because of the new driver version of Crimson or is it any known issue of your new miner's version?

Using RX 480's by the way...

You cannot use your rig while mining.
Just let your Machine to Mine only thats it  

..or you can stop mining only for 1 card (use the numbers on your keyboard to turn on/off mining on each card) and you get the resources you need. the other cards can work on mining onwards.

This is what I do.

[Hotmetal]

Just thought I would share my benchmarking of the R9 nano.

All power measurements were done at the wall to be 100% accurate.
Benchmarks were done with  Claymore ZEC - v8.0 (-i 4)

Stock:
1 gpu: ZEC: 272 h/s Watts: 200w

-100mV ROM
1 gpu: ZEC: 211 h/s Watts:  91w

-125mV ROM
1 gpu: ZEC: 217 h/s Watts: 90w

[Juggy]

Just thought I would share my benchmarking of the R9 nano.

All power measurements were done at the wall to be 100% accurate.
Benchmarks were done with  Claymore ZEC - v8.0 (-i 4)

Stock:
1 gpu: ZEC: 272 h/s Watts: 200w

-100mV ROM
1 gpu: ZEC: 211 h/s Watts:  91w

-125mV ROM
1 gpu: ZEC: 217 h/s Watts: 90w

Nice HM, this looks very good.

[Bitbit017]

Go mine on Dwarfpool!!! No stealing shares  like other pools..... I switched from flypool to dwarfpool, and I have 15% more shares!!!(my real shares)

@bitbit017 .. are you sure about it? what speed you have ?  idk, but something is wrong there today... and im not much impressed about shares...  my increase is just in the rejected ones, as i moved from 0,15%/0,25% to actual 0,76%/1,31% of rejected shares...

also my income is not impressive atm.. after 13h have just 0,072 ZEC with 2,7kh/s   lets see what will be the result after 24h.....  

does anyone else have some experience ??

Yes I'm right about that... My real power is about 11200Sol/s with v8!! I mined in  flypool from begining. I never saw a peak power greater than 10700sol/s in flypool. My average effective hashrate was about 10200sol/s in flypool. In dwarfpool my average hashrate it's about 11200sol/s or greater and it's exactly my power. The only thing that dwarfpool needs it's more users, to have more power to find more blocks.......
Flypool is PPLNS, dwarfpool is HBPPS

[Marvell1]

Go mine on Dwarfpool!!! No stealing shares  like other pools..... I switched from flypool to dwarfpool, and I have 15% more shares!!!(my real shares)

@bitbit017 .. are you sure about it? what speed you have ?  idk, but something is wrong there today... and im not much impressed about shares...  my increase is just in the rejected ones, as i moved from 0,15%/0,25% to actual 0,76%/1,31% of rejected shares...

also my income is not impressive atm.. after 13h have just 0,072 ZEC with 2,7kh/s   lets see what will be the result after 24h.....  

does anyone else have some experience ??

Yes I'm right about that... My real power is about 11200Sol/s with v8!! I mined in  flypool from begining. I never saw a peak power greater than 10700sol/s in flypool. My average effective hashrate was about 10200sol/s in flypool. In dwarfpool my average hashrate it's about 11200sol/s or greater and it's exactly my power. The only thing that dwarfpool needs it's more users, to have more power to find more blocks.......
Flypool is PPLNS, dwarfpool is HBPPS

yeah i'm taking my talents from nanopool when i have time this weekend when i have time

[Marvell1]

Just thought I would share my benchmarking of the R9 nano.

All power measurements were done at the wall to be 100% accurate.
Benchmarks were done with  Claymore ZEC - v8.0 (-i 4)

Stock:
1 gpu: ZEC: 272 h/s Watts: 200w

-100mV ROM
1 gpu: ZEC: 211 h/s Watts:  91w

-125mV ROM
1 gpu: ZEC: 217 h/s Watts: 90w

you are missing a -100 core undervolt benchmark for stock

[Demarsac]

Go mine on Dwarfpool!!! No stealing shares  like other pools..... I switched from flypool to dwarfpool, and I have 15% more shares!!!(my real shares)

@bitbit017 .. are you sure about it? what speed you have ?  idk, but something is wrong there today... and im not much impressed about shares...  my increase is just in the rejected ones, as i moved from 0,15%/0,25% to actual 0,76%/1,31% of rejected shares...

also my income is not impressive atm.. after 13h have just 0,072 ZEC with 2,7kh/s   lets see what will be the result after 24h.....  

does anyone else have some experience ??

Yes I'm right about that... My real power is about 11200Sol/s with v8!! I mined in  flypool from begining. I never saw a peak power greater than 10700sol/s in flypool. My average effective hashrate was about 10200sol/s in flypool. In dwarfpool my average hashrate it's about 11200sol/s or greater and it's exactly my power. The only thing that dwarfpool needs it's more users, to have more power to find more blocks.......
Flypool is PPLNS, dwarfpool is HBPPS

I used dwarfpool back in the ETH days for many reasons
But the fact is that dwarfpool lost the ZEC train out of complacency
Needs a lot more time and luck to be worth it to use dwarfpool for ZEC
Now it has 350 workers approx. and it mines 1-2 blocks per day

Let's see workers get to 5000 and then we can start thinking of using it again
Because it really sucks to mine all night with 2.000h/s and get nothing in the morning

[citronick]

Just thought I would share my benchmarking of the R9 nano.

All power measurements were done at the wall to be 100% accurate.
Benchmarks were done with  Claymore ZEC - v8.0 (-i 4)

Stock:
1 gpu: ZEC: 272 h/s Watts: 200w

-100mV ROM
1 gpu: ZEC: 211 h/s Watts:  91w

-125mV ROM
1 gpu: ZEC: 217 h/s Watts: 90w

you are missing a -100 core undervolt benchmark for stock

Marvell is correct.

using AB, crank down core to -100 -mV or -96 mV, you can easily get 150watts on stock card - it's a easily forgiving card.

[CoRpO]

Every share sent is weighted by the pool with the difficulty of the share. Sending a lot of low difficulty shares won't earn you anything more than sending 4 times less shares with 4 times more difficulty

There is a case where you may want low difficulty shares. If you have bad internet connection where an established connection may be lost, you may lose share because when you send it, it will not be delivered (in time or at all). In that case a share that costs a lot may be worse case than few low cost shares. Of course, TCP should guarantee the delivery, but in real life you still may have "connection lost" reports. So not being a recommendation, this could be a reason for static difficulty port.

Did some tests yesterday, and found an unsuspected result : with lower difficulty shares, I get more watts at the wall ! (went from 445w to 456w for the whole rig, difficulty from +/- 16k to 2048)

[Kimax]

I have sorted this list alphabetical:

https://en.wikibooks.org/wiki/Claymore8.0_card_speeds


for better reading!

 

I was actually thinking of sorting it with GPU.
Oldest to Newest.

BTW. it was me who splitted the column "Card Name" and added the 2 columns "Brand" and "GPU" instead.

actualy i sorted to alphabetical and models yet

v.9 caming soon)

I will be changing the wiki page and add another Column for Miner version. I'm on my way to work right now, but the changes will happen within 6 hours. I will be providing a New Link if needed.

We need a spreadsheet like this.

[Hotmetal]

Just thought I would share my benchmarking of the R9 nano.

All power measurements were done at the wall to be 100% accurate.
Benchmarks were done with  Claymore ZEC - v8.0 (-i 4)

Stock:
1 gpu: ZEC: 272 h/s Watts: 200w

-100mV ROM
1 gpu: ZEC: 211 h/s Watts:  91w

-125mV ROM
1 gpu: ZEC: 217 h/s Watts: 90w

you are missing a -100 core undervolt benchmark for stock

I couldn't do -100 undervolt on stock. The most it will let me undervolt is 75 and it made very little difference.

[Dentidan]

Definitely ETC + Sia better than Zec currently 

Not if you are paying power eth + SIA is power hungery by like 30% , Eth alone uses a bit more power than ZEC alone so its a no brainer to mine ZEC if you have power over .10

If you have the R9 280 or 7970, it is better to mine the ZEC. If you have the RX 470 or 480, it is better to mine the ETH now.

[Jatnid]

Just thought I would share my benchmarking of the R9 nano.

All power measurements were done at the wall to be 100% accurate.
Benchmarks were done with  Claymore ZEC - v8.0 (-i 4)

Stock:
1 gpu: ZEC: 272 h/s Watts: 200w

-100mV ROM
1 gpu: ZEC: 211 h/s Watts:  91w

-125mV ROM
1 gpu: ZEC: 217 h/s Watts: 90w

you are missing a -100 core undervolt benchmark for stock

Marvell is correct.

using AB, crank down core to -100 -mV or -96 mV, you can easily get 150watts on stock card - it's a easily forgiving card.

That is right. The memory undervolt does not make much differnce. It is 1W difference from -100mV to 125mV.

[Marvell1]

Just thought I would share my benchmarking of the R9 nano.

All power measurements were done at the wall to be 100% accurate.
Benchmarks were done with  Claymore ZEC - v8.0 (-i 4)

Stock:
1 gpu: ZEC: 272 h/s Watts: 200w

-100mV ROM
1 gpu: ZEC: 211 h/s Watts:  91w

-125mV ROM
1 gpu: ZEC: 217 h/s Watts: 90w

you are missing a -100 core undervolt benchmark for stock

Marvell is correct.

using AB, crank down core to -100 -mV or -96 mV, you can easily get 150watts on stock card - it's a easily forgiving card.

That is right. The memory undervolt does not make much differnce. It is 1W difference from -100mV to 125mV.

yup even more impressive you can set the power limit down around -30 and still get around 260 h/s with i-4 and watage is down to around 120-130 watts
r9 nano and fury's in general are the undisputed kings of ZEC mining. Th00ber and Other fury experts tipped me off to this.

[Hotmetal]

yup even more impressive you can set the power limit down around -30 and still get around 260 h/s with i-4 and watage is down to around 120-130 watts
r9 nano and fury's in general are the undisputed kings of ZEC mining. Th00ber and Other fury experts tipped me off to this.

Let's see how long the ZEC price stays at this level.

[Assaro]

At what max temps should I keep my R9 390s?
At what temps do you keep them?

Anyone has any good BIOS mod for them?

in general is the rule, low temps are prolonging the lifespan of the components.... (heat kills them..)

so try to get them as cold as you are possible, in the cost efficient way...

my temps are between 52°C - 71°C ...(fans between 70%-75%)

try to make the best airflow in the rig, and place the GPUs properly.. idk how much space u have..

With 52c and 70% fan speed, you will be replacing a lot of fans with no gain in longevity.
Use box fans and try to turn down the gpu fans to 40-50%.
Anything under 80c will work for years.

are you sure about this? well my is idea more or less the same, that you can replace the fans... They are all in warranty for 2-6 years, but if the fans stop spinning i can get box fans cheaper then if the GPU stops to work. In short, its easier to change the fans, im not able to change any other part of the gpu.... and believe me that i tryed many options to cool them as effective as i can... this is my best result...

[Marvell1]

yup even more impressive you can set the power limit down around -30 and still get around 260 h/s with i-4 and watage is down to around 120-130 watts
r9 nano and fury's in general are the undisputed kings of ZEC mining. Th00ber and Other fury experts tipped me off to this.

Let's see how long the ZEC price stays at this level.

Remeber too that eth price is depressed right now, it could shoot back up to 12 at any news then all the hash runs back to eth , either way miners win

[Densitymax]

For me the Dwarfpool was one of the best ETH pools and pay close to calculator.  I have not tried ZEC pool but I think will also be one of the best.