PhoenixMiner 6.2c: fastest Ethereum/Ethash miner with lowest devfee (Win/Linux)

[Ursul0]

Most of the RX series DID NOT have a dual bios. Dual bios was more popular with the older cards from the Radeon era. They also might be more common now but most RX series cards DO NOT have a dual bios. I think the only one that had one was some special Sapphire brand.

So he needs to becareful when modding to make sure he doesn't mess up. If he messes up there is a way to recover a crashed bios by having to short 2 pins on a chip location on the PCB and using DOS he can reflash with the stock bios. Hence if you do this, ALWAYS make sure to make a backup of the bios.

nope. regular 570 nitros 4 and 8 and 580 all have it. but it's never needed:)
just designate a location for bioses, write bat files to perform the backup and to flash (do not use gui)
and don't flash gpus after you run a miner and stop it.
besides it's almost impossible to brick it, if the flash was bad, just re flash it.

[Ursul0]

I have observed another strange behaviour using Nicehash Miner with Phoenix Miner 5.1C plugin to earn BTC.

I have one rig with 6x Radeon VII cards, all 6 cards keept to the same settings with MSI Afterburner: undervolt GPU at 1000mV/overclock GPU at 1831MHz and memory overclocked at 1071MHz. It runs smooth 93,xx MH-94,xx MH each card, very stable for weeks.

Since couple days ago, I have observed all 6 cards dropping from 93,xx MH-94,xx MH to 82,xxMH-83,xx MH, after couple minutes or tenth minutes since start Nicehash Miner. And stays like this until new restart of rig or restart Nicehash Miner.

Using Phoenix Miner 5.1C as standalone, mining by example ETH on Ethermine.org, all 6 cards with the settings described above, runs perfectly at 93,xx-94,xx MH never dropping rown to 83,xx MH.

Anyone faces same issue with Radeon VII?

There is running correctly, on ethermine:

https://postimg.cc/8fC2QD2W

https://i.postimg.cc/FzbNSHGP/Correct-running.jpg

AB is shit, I guess nicehash miner is too. less is better. also make sure you control the volts of your gpus tight, the "default usage" modes may not be suitable for mining

[Ursul0]

It worked perfectly for weeks or even months, with "shitty" Afterburner and settings described above. Nothing has been changed on my settings since months ago.

Mine settings are not "default usage", regarding voltage and/or frequency.

Every card has been tuned rigurous (voltage and frequency), one by one and all at once.

I can go much higher as 1910MHz for GPU and 1120MHz for memory with around 1055mV GPU (still undervolted regarding stock 1126mV most of cards), achieving 97-99 MH for each card, but in the past I had 2 cards dying at 1 month interval, on simple manual system restart, they gave Code 43 error.

Those cards have been replaced at warranty. Since then I dropped all to 1831MHz GPU/1071MHz memory at 1000mV GPU, and everything was perfect for months. No other card died since then. I heard at friends of mine more Radeon VII cards died when exceeding 1890MHz GPU and 1100 MHz HBM 2, even they not exceed, ever, 70 celcius degrees.

So, back to issue.

This problem started couple days ago, I think 2 or 3 days ago.

Here is Nicenash Miner with Phoenix plugin, starting and running OK, for 39 minutes:

https://postimg.cc/PLSG6Pch

After 39 minutes it founds "new job" aand after allocating DAG and tunning -GT parameter, is dropping to 83,xxMH and never rise up to 93,xxMH, until miner fully restart.

https://postimg.cc/xJ8wB9Dm

Here is a part of the log when "staring new job" and allocating DAG, hashing is dropped to 83,xxMH for all cards and stays there, even after -GT has auto tunned:

https://postimg.cc/KKxkPHXw

your volts seem to be way too high. never touched Radeon VII, but amd 14 nm should be fine on 20-30% lower core frequencies (less needed for ethash anyways) at below 900.
all polarises originally set to 975-1000(at 1150-1180 core), but they do just fine at 850, vegas can do lower yet about 817 or so, 5700 can go below 800

Try 864-875mv and lower the core... I guess

[sergioheadache]

hi all,

4gb cards stopped mining ETH, or have some fix for it ?

[zeezoo]

hi all,

4gb cards stopped mining ETH, or have some fix for it ?

Use "good drivers" as described in 1st post and latest phoenixminer 5.1c. I have still no issues mining on 470 4G and 570 4G. Speeds are the same for almost 3 years.

[snip3r29a]

IMPORTANCE OF "-gt"


can anyone explain whether to let PhoenixMiner always auto-tune "-gt" value or is it possible to use already auto-tunned value, please?

for ETH, auto-tune ended up at -gt 65

for ETC, auto-tune ended up at -gt 46

I have read somewhere that unless difficulty changes, it may be manually specified.

[UnclWish]

IMPORTANCE OF "-gt"


can anyone explain whether to let PhoenixMiner always auto-tune "-gt" value or is it possible to use already auto-tunned value, please?

for ETH, auto-tune ended up at -gt 65

for ETC, auto-tune ended up at -gt 46

I have read somewhere that unless difficulty changes, it may be manually specified.

Yes, just add to command line -gt 65

[sergioheadache]

hi all,

4gb cards stopped mining ETH, or have some fix for it ?

Use "good drivers" as described in 1st post and latest phoenixminer 5.1c. I have still no issues mining on 470 4G and 570 4G. Speeds are the same for almost 3 years.

THANKS!!!

[greasepit]

Hi guys

By chance is someone else experiencing GPU hangs today??

I have 4 rigs all cards are the same Rx 580 8gb and the miner of all rigs runs for 1 hour or so and all of sudden I get a message saying all GPU is hanging by the watch dog, and as I have set -rmode 2 with a restart batch file it reboots my Windows.

Using PhoenixMiner 5.1c
Mining on Nicehash pool
All Rigs have 4gb of ram

[RAJNIFICENT]

maximum number of GPUs this miner can support on Windows?  I have the Asus B250, was planning to add 12 cards on it.

Thanks -

[greasepit]

Hi guys

By chance is someone else experiencing GPU hangs today??

I have 4 rigs all cards are the same Rx 580 8gb and the miner of all rigs runs for 1 hour or so and all of sudden I get a message saying all GPU is hanging by the watch dog, and as I have set -rmode 2 with a restart batch file it reboots my Windows.

Using PhoenixMiner 5.1c
Mining on Nicehash pool
All Rigs have 4gb of ram

Weird problem...
Every time I access one of the rigs through RDP after closing remote connection GPUs hang in some minutes! It might be something on my laptop side after some Windows Update!

[stony2017]

My R9 390  8G only get 15M hashrate

Does anyone have solution
Help me!!!

[adaseb]

My R9 390  8G only get 15M hashrate

Does anyone have solution
Help me!!!

There is a thread somewhere on bitcointalk mining section explaining why this is happening. I had this happen with my R9 290 which is basically the same card except has 4GB RAM instead of 8GB.

My issue was that over 3GB DAG or so the speed started to slow down, similar to my old R9 280X and RX 470 GPUs (before the fix) and basically it got slower and slower so I stopped using it all together.

However someone came up with a fix, and I think the requirement was that you need to use certain drivers under Linux and you should get back your old 30MH/s speed. Try and search for it with keywords "hawaii", "r9 290", etc and you will find it. The last post was like a year ago. Not too may people use those GPUs these days.

[stony2017]

Thanks!

I'll try to find it.

[batsonxl]

im having problems with claymore, There is something wrong with dag, Cards are 8g but still on epoch change it gets errors sometimes then restarts again.

I never got good hashrates with phoenix on stock bios.

Mr Phoenix please improve miner like adding strap option. Then this miner will be best etc-eth miner on planet. Flashing bios is not good option.

Thanks

[UselessGuru]

...
Mr Phoenix please improve miner like adding strap option.

How about reading the documentation? It is all there.

[abg00]

...
Mr Phoenix please improve miner like adding strap option.

How about reading the documentation? It is all there.

dont work on amd card

-mt options with error

[batsonxl]

thanks for response.

So what about this dag issues? Anyone? help to survive? looks like no one has problem with dag file

[UnclWish]

thanks for response.

So what about this dag issues? Anyone? help to survive? looks like no one has problem with dag file

Use right drivers. F.e. 20.4.2

[Alex55466452]

I have a few rigs with 9GPU AMD 4GB and all of them have the same problem. Only 8 GPU's are working, GPU 1 hashrate is 0.0MHS and after some time miner restarts because GPU "is not working". Any tips for that error? Tried latest windows, different drivers....etc If I try to mine different coin they are all wrking at full speed, and no issue with GPU1....