Low hashrate Msi HD 7990, Eth mining

[shadowhlohavec]

Hello everybody, recently we managed to get radeon msi hd 7990, we were expexting to get at least 37mhs on eth mining some sources provide also 43+ mhs, firstly we tried latest drivers and went through different miners nicehash, claymore... we get around 28mhs which was disgusting (os - win10 pro) , later we tried catalyst 15.12 which wasn't working and the card wasn't recognized as opencl device, so we installed crismon 16.1.1 , and tried ethminer from dwarfpool, we set a little overclock and also local work in config - we got max 32.5 and stable 31.5 now which is better according to this card should be something like 2x hd 7970 which gives at least 2x 17-20 mhs... (maybe is because of big dag file...! , but now I discovered that stats on pool doesn't match the miner stats, we are getting 32mhs in miner and 36 - 45mhs in the pool statistics, I don't understand - it's calculated on how many shares we have submited or how? you can see it in these photos and

at least maybe the eth proxy can help to increase the share rate, but it's quite hard to set it up, is there some basic guide?

Thanks

[adaseb]

These days 16 MH/s per core is normal for ETH

[shadowhlohavec]

These days 16 MH/s per core is normal for ETH

Thanks, I was worried that the settings aren't set up properly, so it's because of dag right?

[sp_]

You should mine expanse. Smaller dag buffer. And get 40+ on the 7990

[shadowhlohavec]

You should mine expanse. Smaller dag buffer. And get 40+ on the 7990

Thanks man, we got 45mhs right now (pool showing 50) These are great stats for now, do you change config on your exp miner like local/global work?

[adaseb]

I found that mining EXP results in a faster speed however you usually make less with the coin so in the end it balances it out. Just a waste of electricity

[Gestinar]

I found that mining EXP results in a faster speed however you usually make less with the coin so in the end it balances it out. Just a waste of electricity

That is right. It is better to mine the ZCash now with the 7990 or old cards. They are more efficient there.

[adaseb]

Yes he should get at least 150H/s with ZEC.

[shadowhlohavec]

Yes he should get at least 150H/s with ZEC.

Getting 20H/s on nicehashminer maybe it's not fully tested and config isn't set up properly but 150 is unreal (possible with some cracked bios or something maybe) (exp 47mhs with little overclock, after watercooling we can go for more overclock and maybe 50mhs+)

I found that mining EXP results in a faster speed however you usually make less with the coin so in the end it balances it out. Just a waste of electricity

Don't worry we have free limited electricity so that's not a problem  

[Rumant]

Yes he should get at least 150H/s with ZEC.

Getting 20H/s on nicehashminer maybe it's not fully tested and config isn't set up properly but 150 is unreal (possible with some cracked bios or something maybe) (exp 47mhs with little overclock, after watercooling we can go for more overclock and maybe 50mhs+)

I found that mining EXP results in a faster speed however you usually make less with the coin so in the end it balances it out. Just a waste of electricity

Don't worry we have free limited electricity so that's not a problem  

You should use the Claymore miner, it is quite fast in the old cards like the 7970, 7990 or 280x.

[Gestinar]

Yes he should get at least 150H/s with ZEC.

Getting 20H/s on nicehashminer maybe it's not fully tested and config isn't set up properly but 150 is unreal (possible with some cracked bios or something maybe) (exp 47mhs with little overclock, after watercooling we can go for more overclock and maybe 50mhs+)

I found that mining EXP results in a faster speed however you usually make less with the coin so in the end it balances it out. Just a waste of electricity

Don't worry we have free limited electricity so that's not a problem  

You should use the Claymore miner, it is quite fast in the old cards like the 7970, 7990 or 280x.

It is more profitable to mine the ZEC for those old cards. They are very slow in the mining of the Ethereum.

[shadowhlohavec]

We are mining expanse getting up to 60mhs, It's the most profitable for now, Zec earnings are lower on 330Hs and the price of zec is volatile...

[Gestinar]

We are mining expanse getting up to 60mhs, It's the most profitable for now, Zec earnings are lower on 330Hs and the price of zec is volatile...

That is right. but with the Claymore miner, it is better to mine ZEC now.

[shadowhlohavec]

We are mining expanse getting up to 60mhs, It's the most profitable for now, Zec earnings are lower on 330Hs and the price of zec is volatile...

That is right. but with the Claymore miner, it is better to mine ZEC now.

Hmm, zec dropped 30% so it doesn't matter if you mine Eth/Exp/Zec right now, earning are similliar I think...

[Rumant]

We are mining expanse getting up to 60mhs, It's the most profitable for now, Zec earnings are lower on 330Hs and the price of zec is volatile...

That is right. but with the Claymore miner, it is better to mine ZEC now.

Hmm, zec dropped 30% so it doesn't matter if you mine Eth/Exp/Zec right now, earning are similliar I think...

They are similar. But for 7990, it is still a bit more profitable to mine ZEC.

[shadowhlohavec]

We are mining expanse getting up to 60mhs, It's the most profitable for now, Zec earnings are lower on 330Hs and the price of zec is volatile...

That is right. but with the Claymore miner, it is better to mine ZEC now.

Hmm, zec dropped 30% so it doesn't matter if you mine Eth/Exp/Zec right now, earning are similliar I think...

They are similar. But for 7990, it is still a bit more profitable to mine ZEC.

Now it's monero 

[Gestinar]

We are mining expanse getting up to 60mhs, It's the most profitable for now, Zec earnings are lower on 330Hs and the price of zec is volatile...

That is right. but with the Claymore miner, it is better to mine ZEC now.

Hmm, zec dropped 30% so it doesn't matter if you mine Eth/Exp/Zec right now, earning are similliar I think...

They are similar. But for 7990, it is still a bit more profitable to mine ZEC.

Now it's monero 

Monero is very good coin to mine now.

[Rumant]

We are mining expanse getting up to 60mhs, It's the most profitable for now, Zec earnings are lower on 330Hs and the price of zec is volatile...

That is right. but with the Claymore miner, it is better to mine ZEC now.

Hmm, zec dropped 30% so it doesn't matter if you mine Eth/Exp/Zec right now, earning are similliar I think...

They are similar. But for 7990, it is still a bit more profitable to mine ZEC.

Now it's monero 

Monero is very good coin to mine now.

7990 is better for ZEC.

[Assanger]

We are mining expanse getting up to 60mhs, It's the most profitable for now, Zec earnings are lower on 330Hs and the price of zec is volatile...

That is right. but with the Claymore miner, it is better to mine ZEC now.

Hmm, zec dropped 30% so it doesn't matter if you mine Eth/Exp/Zec right now, earning are similliar I think...

They are similar. But for 7990, it is still a bit more profitable to mine ZEC.

Now it's monero 

Monero is very good coin to mine now.

7990 is better for ZEC.

The Eth file size is too larger now, it is not good for 7990.