Hacking The KNC Firmware: Overclocking - page 40.

Biffa

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Quote from: mekadeka on January 24, 2014, 11:58:09 AM

Quote

you have to minus the percentage of errors and rejected shares from your hash rate to get hash rate that pool should show.

eg. if your hash rate is 300GH/s and you have 2% errors and 1% rejected then 300-9 = 291GH/s

Thanks. Ok, where do I find errors? The rejects are .13%. Also, I'm not following your formula. Your example is 2% errors and 1% rejects (3%) subtracted from the hashrate (300). That's 297, not 291.

That said, if I followed your formula, I'd be less than 1% plus presumably 30% errors (326 - .13% - [30% errors]. That seems incorrect?

You would have to get the information from cgminer on the device.

So either SSH onto the box or use the API and a third part App, or use Bertmod and it will show the Hardware errors (HW) on the web page.

mekadeka

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Quote

you have to minus the percentage of errors and rejected shares from your hash rate to get hash rate that pool should show.

eg. if your hash rate is 300GH/s and you have 2% errors and 1% rejected then 300-9 = 291GH/s

Thanks. Ok, where do I find errors? The rejects are .13%. Also, I'm not following your formula. Your example is 2% errors and 1% rejects (3%) subtracted from the hashrate (300). That's 297, not 291.

That said, if I followed your formula, I'd be less than 1% plus presumably 30% errors (326 - .13% - [30% errors]. That seems incorrect?

Biffa

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Quote from: pedrosoft on January 24, 2014, 11:53:30 AM

thanks ! Don't you think that jupiter clocked on 325 mhz is too dangerous for a long run ?

Not dangerous, but it does void your warranty, which is why I would NEVER overclock my KnC hardware, but I have a purely scientific interest in these find people investigating the inner workings of the hardware.

But if I was, theoretically, going to overclock my KnC hardware then the requirements of getting as many coins as quickly as possible would probably override my concerns about danger or warranty becuase by the time they actually started to be a concern, well, with the difficulty increases we have had recently, the equipment would be mining dust by then really.

pedrosoft

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Quote from: temen on January 24, 2014, 11:34:27 AM

Setting is 325 for this.

here

SORRY 325 setting no Mhz Sad

CYPER

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Quote from: pedrosoft on January 24, 2014, 11:53:30 AM

thanks ! Don't you think that jupiter clocked on 325 mhz is too dangerous for a long run ?

325Mhz? Where did you get that from?

pedrosoft

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thanks ! Don't you think that jupiter clocked on 325 mhz is too dangerous for a long run ?

Biffa

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Quote from: pedrosoft on January 24, 2014, 11:46:55 AM

Quote from: Biffa on January 24, 2014, 11:42:16 AM

Quote from: pedrosoft on January 24, 2014, 11:26:17 AM

Quote from: Biffa on January 24, 2014, 11:19:56 AM

Quote from: pedrosoft on January 24, 2014, 11:17:57 AM

max stable performance for october jupiter ?

I've seen 650-670 in really well cooled environments

1 or more fan(s) per board ?

Just with the stock fans, but adjusted so that they are sitting on the crossbar

this position is better for having less temps ? Could you please post images of yout setup ?

Its not mine, I run mine 100% at stock of course.

pedrosoft

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Quote from: Biffa on January 24, 2014, 11:42:16 AM

Quote from: pedrosoft on January 24, 2014, 11:26:17 AM

Quote from: Biffa on January 24, 2014, 11:19:56 AM

Quote from: pedrosoft on January 24, 2014, 11:17:57 AM

max stable performance for october jupiter ?

I've seen 650-670 in really well cooled environments

1 or more fan(s) per board ?

Just with the stock fans, but adjusted so that they are sitting on the crossbar

this position is better for having less temps ? Could you please post images of yout setup ?

Biffa

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Activity: 3220

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Quote from: pedrosoft on January 24, 2014, 11:26:17 AM

Quote from: Biffa on January 24, 2014, 11:19:56 AM

Quote from: pedrosoft on January 24, 2014, 11:17:57 AM

max stable performance for october jupiter ?

I've seen 650-670 in really well cooled environments

1 or more fan(s) per board ?

Just with the stock fans, but adjusted so that they are sitting on the crossbar

pedrosoft

hero member

Activity: 560

Merit: 500

Quote from: temen on January 24, 2014, 11:34:27 AM

@mekadeka: I noticed that when using wizkid cgminer I can't get past 429 with saturn at the pool =( It shows as high as 500GH/s on SSH-interface but pool doesnt go there ever.

I noticed that sometimes I start 2 instances of the miner (I dont know how this is possible) the other being 3.9 and I thought that this would be the reason but it wasnt that either.

Now Im running 33-34 amps /vrm. Total power 441 watts, 479GH/s Grin

Setting is 325 for this.

Have you fans ? Open case ?

temen

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@mekadeka: I noticed that when using wizkid cgminer I can't get past 429 with saturn at the pool =( It shows as high as 500GH/s on SSH-interface but pool doesnt go there ever.

I noticed that sometimes I start 2 instances of the miner (I dont know how this is possible) the other being 3.9 and I thought that this would be the reason but it wasnt that either.

Now Im running 33-34 amps /vrm. Total power 441 watts, 479GH/s Grin

Setting is 325 for this.

pedrosoft

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Activity: 560

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Quote from: Biffa on January 24, 2014, 11:19:56 AM

Quote from: pedrosoft on January 24, 2014, 11:17:57 AM

max stable performance for october jupiter ?

I've seen 650-670 in really well cooled environments

1 or more fan(s) per board ?

Biffa

legendary

Activity: 3220

Merit: 1220

Quote from: pedrosoft on January 24, 2014, 11:17:57 AM

max stable performance for october jupiter ?

I've seen 650-670 in really well cooled environments

pedrosoft

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max stable performance for october jupiter ?

merv77

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1.21 GIGA WATTS

Quote from: mekadeka on January 24, 2014, 10:31:07 AM

Hello, everyone.

I have a problem to solve. Maybe some of you are experiencing this, too:

My OC'd Saturn machine is hashing at a much higher rate than BTCGuild is reporting. I tried resetting the worker to clear stats, but it's still reporting as much lower than the machine itself is reporting.

MORE DETAILS:
----------

I succeeded at least in overclocking on paper and have been running overnight. There are still at least several things I'm unclear on, such as how to get wizkid's cgminer in place, but those will come in a bit, I guess.

Does anyone know why my Saturn is reporting a significantly lower hashrate than at BTC? The Saturn GUI is reporting 326ghs, but poolside BTCGuild hasn't budged above 292. That's quite a difference and not markedly better from my un-OC'd machine.

I tried resetting my worker stats, but that doesn't seem to have done anything either. BTCGuild is reporting 0.13% rejects.

My machine:
October version Saturn
Running 99.1-tuning
OC'd to 231

In SSH as of this moment, the Saturn is showing 329.3G/325.8Gh/s. Still a long way off from 292.

Does anyone know what this issue might be?

you have to minus the percentage of errors and rejected shares from your hash rate to get hash rate that pool should show.

eg. if your hash rate is 300GH/s and you have 2% errors and 1% rejected then 300-9 = 291GH/s

mekadeka

newbie

Activity: 31

Merit: 0

[/quote]

My october mercury with 2 added modules(total 3) runs way better with 211 - around 485 GH/s, with 231 there are a lot of disabled cores and is hashing with no more than 300 GH/s. Try 211 for some time.
[/quote]

Thanks for the reply. What other mods do you have going? Are you running bertmod and wizkid's cgminer? What pool are you using?

I had 211 going last night before I spun things up a bit. It reported at around 310G. I'll try it again, but I'm not sure why stepping down would help...

redbluebg

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Quote from: mekadeka on January 24, 2014, 10:31:07 AM

Hello, everyone.

I have a problem to solve. Maybe some of you are experiencing this, too:

My OC'd Saturn machine is hashing at a much higher rate than BTCGuild is reporting. I tried resetting the worker to clear stats, but it's still reporting as much lower than the machine itself is reporting.

MORE DETAILS:
----------

I succeeded at least in overclocking on paper and have been running overnight. There are still at least several things I'm unclear on, such as how to get wizkid's cgminer in place, but those will come in a bit, I guess.

Does anyone know why my Saturn is reporting a significantly lower hashrate than at BTC? The Saturn GUI is reporting 326ghs, but poolside BTCGuild hasn't budged above 292. That's quite a difference and not markedly better from my un-OC'd machine.

I tried resetting my worker stats, but that doesn't seem to have done anything either. BTCGuild is reporting 0.13% rejects.

My machine:
October version Saturn
Running 99.1-tuning
OC'd to 231

In SSH as of this moment, the Saturn is showing 329.3G/325.8Gh/s. Still a long way off from 292.

Does anyone know what this issue might be?

My october mercury with 2 added modules(total 3) runs way better with 211 - around 485 GH/s, with 231 there are a lot of disabled cores and is hashing with no more than 300 GH/s. Try 211 for some time.

mekadeka

newbie

Activity: 31

Merit: 0

Hello, everyone.

I have a problem to solve. Maybe some of you are experiencing this, too:

My OC'd Saturn machine is hashing at a much higher rate than BTCGuild is reporting. I tried resetting the worker to clear stats, but it's still reporting as much lower than the machine itself is reporting.

MORE DETAILS:
----------

I succeeded at least in overclocking on paper and have been running overnight. There are still at least several things I'm unclear on, such as how to get wizkid's cgminer in place, but those will come in a bit, I guess.

Does anyone know why my Saturn is reporting a significantly lower hashrate than at BTC? The Saturn GUI is reporting 326ghs, but poolside BTCGuild hasn't budged above 292. That's quite a difference and not markedly better from my un-OC'd machine.

I tried resetting my worker stats, but that doesn't seem to have done anything either. BTCGuild is reporting 0.13% rejects.

My machine:
October version Saturn
Running 99.1-tuning
OC'd to 231

In SSH as of this moment, the Saturn is showing 329.3G/325.8Gh/s. Still a long way off from 292.

Does anyone know what this issue might be?

DPoS

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