Claymore's Dual Ethereum AMD+NVIDIA GPU Miner v15.0 (Windows/Linux)

[mafaz]

Hi guys....

I have (had ) 42 MSI rx 470
12 Sapphire Nitro+ 470
12 Sapphire reference 470 cards.

Latelly ... all off them started falling like leaves. I mean they either die or burn up.

6 msi -  3 sapphire nitro and  2 sapphire reference cards died all during past 3 weeks....

Anyone else have that many breakdowns lately?

I dont even know what to blame now. Bios mods... motherboards.... PSU or claymor v9

Sapphire reference cards all worked for 5 months with only 2 of them die before this nightmare....
Sapphire Nitro+ never broke for 5 months before this....
I recently purchased 30 MSI cards and 6 already dead in like 3 weeks.... they tend to bring out smoke while sapphire cards just die.

My rigs are 6xGPU all (used to be.... LOL) motherboards are BTC PRO and Z97 fatality.
PSU are Be quiet pro 2x 1200 and and Platimaxe's 1600.

I used to use -96 core woltage in afterburner.

I started thinking that might be the reason. But i changed it to 0 and 2 more cards died. SO im pretty much lost.

Any ideas are welcome.

Or maybe someone else has unusual high rate of failing cards recently?

[nikisev]

@jackbox my problem is that i feel im loosing a complete GPU with those numbers, Claymore reports me 170 MHs but the pool 147 MHs,, as i say i feel im loosing one of my 6 GPUs

For my pool, I also just get about 151/162 = 93% of the hash rate reported by the pool.

Claymore fee 2%, Pool fee 1% makes a total of 3% lost right away. 170-3%=164

1. What is average ping response to your pool? ping poolipaddress -t
2. What is your internet connection bandwidth?
3. How many times per day your miner restarts?

Let us assume:
1. <100ms=you are fine. 100>x<300=1% lost.   300>x - can loose a lot
2. 20Mbs<x=you are fine. 20>x>10=1% lost.    10Mbs>x - can loose a lot
3. 3 times=1% lost

Could be 5%+ lost easily just on your side.
Also Claymore miner may not calculate hash rate accurately,  pool could have issues on their side...

Why confuse people?
1. lets presume that we always mine coins with very shirt block time and than maybe it's sort of true
2. Bandwidth needed for a single miner is in low kilobits.  "10Mbs>x - can loose a lot" - total crap
3. Lets say your miner boots and starts mining in 2 minutes (normally should be faster than that) so 3 restarts a day will waste 0.16%

[Claymore]

Finally I got a good progress about the issue with floating speed, I was able to stabilize it, not 100% but close. I will release new version within 2-3 days.

[fittsy]

Why confuse people?
1. lets presume that we always mine coins with very shirt block time and than maybe it's sort of true
2. Bandwidth needed for a single miner is in low kilobits.  "10Mbs>x - can loose a lot" - total crap
3. Lets say your miner boots and starts mining in 2 minutes (normally should be faster than that) so 3 restarts a day will waste 0.16%

You still have to transmit your work. If you have 300 ms ping times then you are definitely going to have more rejected shares than someone on 60 ms ping times.

[miner417]

Finally I got a good progress about the issue with floating speed, I was able to stabilize it, not 100% but close. I will release new version within 2-3 days.

Do you mean by this the issue that say we see 24 MH/s normal, and it drops to 18 or something, then spikes back up?

[Claymore]

Finally I got a good progress about the issue with floating speed, I was able to stabilize it, not 100% but close. I will release new version within 2-3 days.

Do you mean by this the issue that say we see 24 MH/s normal, and it drops to 18 or something, then spikes back up?

Exactly.

[miner417]

Finally I got a good progress about the issue with floating speed, I was able to stabilize it, not 100% but close. I will release new version within 2-3 days.

Do you mean by this the issue that say we see 24 MH/s normal, and it drops to 18 or something, then spikes back up?

Exactly.

Great, thank you. Is this in the assembler kernal mode, or with -asm 0 defined?

[nikisev]

Why confuse people?
1. lets presume that we always mine coins with very shirt block time and than maybe it's sort of true
2. Bandwidth needed for a single miner is in low kilobits.  "10Mbs>x - can loose a lot" - total crap
3. Lets say your miner boots and starts mining in 2 minutes (normally should be faster than that) so 3 restarts a day will waste 0.16%

You still have to transmit your work. If you have 300 ms ping times then you are definitely going to have more rejected shares than someone on 60 ms ping times.

sure you do. delay in submitting your solutions/getting new job could be a factor if the block creation time is short.
In this case you will have a short window to submit your solutions before the new block starts.

[nevermind41]

@Claymore
 Can you add to your miner releases recommended drivers for rx 4xx cards?

[Claymore]

Finally I got a good progress about the issue with floating speed, I was able to stabilize it, not 100% but close. I will release new version within 2-3 days.

Do you mean by this the issue that say we see 24 MH/s normal, and it drops to 18 or something, then spikes back up?

Exactly.

Great, thank you. Is this in the assembler kernal mode, or with -asm 0 defined?

If you use "-asm 0" you won't see problems with floating speed.

@Claymore
 Can you add to your miner releases recommended drivers for rx 4xx cards?

17.2.1 is good for me. Actually, for ASM mode you can use any drivers that support your GPUs and they must show same (or almost same) speed because OpenCL compiler is not used. The only difference is overall stability, especially for multi-GPU systems. I use 17.2.1 in my tests, but may be there is some better version.
For general usage, I don't know any really good drivers for Polaris. I did not check latest versions, but OpenCL compiler in 17.2.1 has a lot of bugs.

[vapourminer]

Hi guys....

I have (had ) 42 MSI rx 470
12 Sapphire Nitro+ 470
12 Sapphire reference 470 cards.

Latelly ... all off them started falling like leaves. I mean they either die or burn up.

6 msi -  3 sapphire nitro and  2 sapphire reference cards died all during past 3 weeks....

Anyone else have that many breakdowns lately?

Or maybe someone else has unusual high rate of failing cards recently?

i recently had a msi gaming x 470 die dual mining a couple weeks ago.. system would not power up with the peg connected. no smoke, just the psu would not power up. no visible damage to the card that i could see. running cdm 9.1 dual mining eth/dcr.

my sapphire nitro 390, powercolor red devil 470 and visiontek 460 are all fine on the same rig. psu is an evga g2 850 so i doubt its psu related.

may be 9.1 just works em harder. mayhaps its time to retune the cards for power/voltage/clocks

[coinzoid]

Finally I got a good progress about the issue with floating speed, I was able to stabilize it, not 100% but close. I will release new version within 2-3 days.

Thanks, looking forward to test new release.

[Andresdante]

Recent Help buy rx 470 8gb sapphire nitro on amazon and to my surprise it does not arrive bios dual button is in another place or simply does not have dual bios

[alkov]

Sorry guys may be i am crazy but WHERE can i download this miner ?

[jackbox]

Sorry guys may be i am crazy but WHERE can i download this miner ?

On this type of thread always go to the first post on page 1 for download links.

[alkov]

Sorry guys may be i am crazy but WHERE can i download this miner ?

On this type of thread always go to the first post on page 1 for download links.

Would you be so kind to link it... Have spent half of hour and couldnt find it

[jackbox]

Sorry guys may be i am crazy but WHERE can i download this miner ?

On this type of thread always go to the first post on page 1 for download links.

Would you be so kind to link it... Have spent half of hour and couldnt find it

To go to the first page of the thread you click on the 1 where all the numbers are. The you go to the OP (Original Post) and the links will be there. Every thread of this kind operates in this manner. Updates are always changed in the OP. It is actually very simple to find them but here is everything below.  

OP: https://bitcointalk.org/index.php?topic=1433925.0
Google Drive: https://drive.google.com/open?id=0B69wv2iqszefdFZUV2toUG5HdlU
Mega: https://mega.nz/#F!O4YA2JgD!n2b4iSHQDruEsYUvTQP5_w

[fittsy]

Recent Help buy rx 470 8gb sapphire nitro on amazon and to my surprise it does not arrive bios dual button is in another place or simply does not have dual bios

Nitro doesn't have dual bios switch.
Nitro+ does

Sounds like you bought a Nitro not Nitro+  (I bought 4 of the Nitros myself so it's how I know

[nikisev]

Recent Help buy rx 470 8gb sapphire nitro on amazon and to my surprise it does not arrive bios dual button is in another place or simply does not have dual bios

this is one of the the differences between Nitro and Nitro+

[matmator]

I have tested version 9.1

At home I have 2 rig

1 rig 6x rx480 reference and another rig 6x rx480 nitro + oc

On my reference rig (21260-00-20G) I have a hashrate loss of + 10mh approximately

With version 9.0 I have 184 mh but with version 9.1 I have that 175mh.

I try several dcri but i can not get to have at least 180.


But on my rig of nitro (11260-01-20g), I lose 1.5 mh about.

  @claymore: did you have an explanation?

But super works! The best of the minor!

Long life a claymore.