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Author Topic: My 1 gpu now 11gpus 5rigs for Ethereum. 45 days of mining. Photos thoughts.  (Read 49104 times)
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Vixmore
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June 12, 2016, 07:37:43 AM
 #361

I have 6X 390 on a ASrock H81 motherboard. The voltage is 0.984 V and the frequency is 970/1000MHz, they hash about 165MH/s. The power consumption from the wall is 1050W with 93% efficiency PSU.

which rom mod did you use?  Shocked Shocked

I mod it myself, using the HawaiiBiosReader. There is a thread in this forum about using that editor. It is easy.

what brand are your 390s? does it work the same for sapphire, asus, msi, gigabyte?

I have the XFX, the 1015 version, the HawaiiBiosReader works well. You can try that on other brands.
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June 12, 2016, 10:06:50 AM
 #362


I have 2 reference R9 290 cards that I undervolt -100mv


 The one real advantage to Windows for mining - better tools for control of your card parameters.

Quote
and they consume only 500 watt at the wall with a bronze psu that wastes 15% the power.  So if I had 3 they would consume about 700 watts and that is with an inefficient psu.  Anyway I tried to use TheStilt bios on my cards but when I boot it gives me this checkered pattern and is almost possible to see the screen, any ideas?

 There are several bios by TheStilt for the 290 - and a similar series for the 290x. Perhaps trying one with less undervolt?

 Also, double-check that you're flashing a 290 verison to a 290, flashing a 290x version to a 290 sometimes flakes things (by report it works well if the card is a VERY EARLY 290 that actually had the 290x chip on it).


 The power draw is probebly due to the changes to memory timing allowing a MUCH higher overclock than stock without overheating - I didn't save any power usage overall vs stock BIOS, but the cards run AT LEAST 15 and probably more like 20 degrees COOLER despite clocking the core 150MHz higher - not to mention that they hash about 50% faster now that I CAN overclock them instead of hitting BIOS thermal limiting UNDERCLOCK all the time.
 In at least one of his postings about the BIOS mode, TheStilt specified that the card might not see any power savings with his BIOS, as the GPU wouldn't be getting limited by memory throughput nearly as much if at all and therefore could work harder.

 I still have to crank the fan settings way up, but that's a given - and I can actually scale THAT back on a couple of the cards that get better cooling to 80% from the 100% I had to run ALL of them at before the bios flash.

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June 12, 2016, 02:07:26 PM
 #363

I have 6X 390 on a ASrock H81 motherboard. The voltage is 0.984 V and the frequency is 970/1000MHz, they hash about 165MH/s. The power consumption from the wall is 1050W with 93% efficiency PSU.

which rom mod did you use?  Shocked Shocked

I mod it myself, using the HawaiiBiosReader. There is a thread in this forum about using that editor. It is easy.

what brand are your 390s? does it work the same for sapphire, asus, msi, gigabyte?

yeah I have a powercolor and a his r9 390 looking to mod for lower watts.

and I am looking to mod the nanos for lower watts

unlucky me - I can only get -150mV mod to work on my Sapphire Nanos.
Anyways, still some power savings there to fully maximize my current Amps.
4 x Nanos @88MHs@1.8amps@800/300 is running smoothly

 I need to do this still putting it off due to fear of bricking .  I never flashed a gpu before.

Please support sidehack with his new miner project Send to : 1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr
I mine alt coins with https://simplemining.net I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
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June 12, 2016, 04:20:02 PM
 #364

I have 6X 390 on a ASrock H81 motherboard. The voltage is 0.984 V and the frequency is 970/1000MHz, they hash about 165MH/s. The power consumption from the wall is 1050W with 93% efficiency PSU.

which rom mod did you use?  Shocked Shocked

I mod it myself, using the HawaiiBiosReader. There is a thread in this forum about using that editor. It is easy.

what brand are your 390s? does it work the same for sapphire, asus, msi, gigabyte?

yeah I have a powercolor and a his r9 390 looking to mod for lower watts.

and I am looking to mod the nanos for lower watts

unlucky me - I can only get -150mV mod to work on my Sapphire Nanos.
Anyways, still some power savings there to fully maximize my current Amps.
4 x Nanos @88MHs@1.8amps@800/300 is running smoothly

 I need to do this still putting it off due to fear of bricking .  I never flashed a gpu before.

No worry. If you brick one, you can flip the switch, boot with it, then flip the BIOS switch, flash the original BIOS again.
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June 12, 2016, 04:53:30 PM
 #365

I have 6X 390 on a ASrock H81 motherboard. The voltage is 0.984 V and the frequency is 970/1000MHz, they hash about 165MH/s. The power consumption from the wall is 1050W with 93% efficiency PSU.

which rom mod did you use?  Shocked Shocked

I mod it myself, using the HawaiiBiosReader. There is a thread in this forum about using that editor. It is easy.

what brand are your 390s? does it work the same for sapphire, asus, msi, gigabyte?

yeah I have a powercolor and a his r9 390 looking to mod for lower watts.

and I am looking to mod the nanos for lower watts

unlucky me - I can only get -150mV mod to work on my Sapphire Nanos.
Anyways, still some power savings there to fully maximize my current Amps.
4 x Nanos @88MHs@1.8amps@800/300 is running smoothly

 I need to do this still putting it off due to fear of bricking .  I never flashed a gpu before.

me too... but i braved it on the first few.... the ETH price gave me the courage to do it!

1 ETH = USD$15.28 now....

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June 12, 2016, 05:10:43 PM
 #366

Does anybody notice significant drop in shares on Nanopool?

With 119.6MHs I suppose to get ~0.042ETH per hour - but getting only 0.032ETH

Any reason for that?
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June 12, 2016, 07:14:01 PM
 #367

Does anybody notice significant drop in shares on Nanopool?

With 119.6MHs I suppose to get ~0.042ETH per hour - but getting only 0.032ETH

Any reason for that?

bad luck?  I think they run based on blocks hit and could have hit a cold spell.

I am on ethpool at the moment.



I even gave hitchpool a shot with a nicehash rental.  but I need to analyze it more.

as for flashing my nanos I will get to it.

right now I am getting ready for the incoming s-9's

2 batch ones due tues or weds.

2 batch twos in ten days or so.

close to 54 ph  for 5400 watts.

Please support sidehack with his new miner project Send to : 1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr
I mine alt coins with https://simplemining.net I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
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June 12, 2016, 07:56:31 PM
 #368

bad luck?  I think they run based on blocks hit and could have hit a cold spell.
I am on ethpool at the moment.

Thank you, Phil

I've changed to http://ethermine.org - so let's check it
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June 13, 2016, 01:31:11 AM
 #369

bad luck?  I think they run based on blocks hit and could have hit a cold spell.
I am on ethpool at the moment.

Thank you, Phil

I've changed to http://ethermine.org - so let's check it

are you doing better with switch to ethermine?

Please support sidehack with his new miner project Send to : 1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr
I mine alt coins with https://simplemining.net I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
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June 13, 2016, 04:00:21 AM
 #370

are you doing better with switch to ethermine?

Now it is ~0.037ETH per hour

Which is slightly better
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June 13, 2016, 07:49:39 AM
 #371

I've had good luck with ethermine most of the time - I almost never see my "local" hashrate match the pool rate, but that's largely an issue with my Sat Internet connection giving me a lot of "stale" shares, and going down at times due to weather - I see the SAME issues on my Litecoin mining, and used to see them with Bitcoin mining too.



 I didn't worry about bricking my 290s - dual-bios like most if not all recent AMD cards (though the 2 BIOS options AMD put on the R9 290 are both jokes given the insanely LOW max fan speed in either BIOS option), AND I had enough of them that I could always just copy the stock bios over from one of the others if I bricked one of them - then I found the techpowerup BIOS database, and my worries ended entirely.

 8-)



 Right now my only worries are that the recent heat wave has been pushing temps high enough to cause derating on too many of my breakers - had to re-distribute power a bit to even the load out, AND had to downclock the A2s 'cause my 15 amp breakers were tripping at about 10 amp draw on a few circuits (I will NEVER use QO "double breaker in one slot" again, they overheat WAY too easily).

 Wiring isn't an issue - I made a point of using 12AWG (rated 20 amps) on those circuits for "just in case" safety reasons, AND it was only 20% or so more than 14AWG anyway.
 Far better to have the BREAKER be the point of failure than the WIRE....

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June 14, 2016, 04:47:14 AM
 #372

Question:

One card of 4 cannot hold reasonable core overclocking (stable is 1065 - at 1075 got the problem)

Can I manually increase for 3 other cards core till 1075 and leave that ugly duckling at 1065?

I feel that it is not good Smiley

 
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June 14, 2016, 06:40:12 AM
 #373

I have to run different settings on my 3 R9 290s in the "big box" - though in that case it's different FAN settings as they don't get quite the same cooling airflow.
I've got 2 rigs running completely different cards (1x R9 290 1x R9 280X each), have to run different settings on those - no issues.


 I wish I could count on ETH profitability going up like it has the last couple of weeks (PRICE has gone up more than DIFF) - it's nice seeing my "estimated profit" go from under $800/month to over $1100/month on Ethermine (though part of that was fine-tuning of setup to maximise hashrate at current "heat wave" temps, actual hashrate only changed about 4% though in total).
 Still, it's nice for the probability of achieving ROI even if it's just a short-term surge.

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June 14, 2016, 12:09:25 PM
 #374

Question:

One card of 4 cannot hold reasonable core overclocking (stable is 1065 - at 1075 got the problem)

Can I manually increase for 3 other cards core till 1075 and leave that ugly duckling at 1065?

I feel that it is not good Smiley

 

No problem. I set my cards frequency individually. I also set the core voltage if I have to set them differently.

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June 14, 2016, 01:22:14 PM
 #375

Question:

One card of 4 cannot hold reasonable core overclocking (stable is 1065 - at 1075 got the problem)

Can I manually increase for 3 other cards core till 1075 and leave that ugly duckling at 1065?

I feel that it is not good Smiley

 

No problem. I set my cards frequency individually. I also set the core voltage if I have to set them differently.

I also have set card independently with little or no issues.

I know that keeping cards under 70c is big.

So some fans are set at 80% some  at 60%

Same with volts. Some gear will not run at -100mv. So some are at -75mv
All freq are set at stock clocks. R9 nano at 1000 and at 500

Please support sidehack with his new miner project Send to : 1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr
I mine alt coins with https://simplemining.net I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
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June 14, 2016, 10:04:01 PM
 #376

Thank you, guys!
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June 14, 2016, 10:44:16 PM
 #377

Phil I think Ethereum mining is definately bringing back those litecoin days maybe more so.  Gpu rigs can be pieced together cheap enough and resold fairly easily. 
Glad to see you diving into it.  Sure there's huge fluctuations in price but none (and I mean none) have showed this much strength and early adoption as Eth. 
I missed the tailend of Ltc mining with gpu's but caught the rush of altcoins at the end of 2013 which was quite a rush.  One thing I've noticed is Eth rigs don't have to be screaming full tilt for a descent hashrate which makes them even more desireable around the house.
I think dollar to dollar and resellability, gpu mining has always been better than spending on inflated asic rigs.
Again it's always nice to see you tinkering away.
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June 15, 2016, 04:34:32 AM
 #378

Phil I think Ethereum mining is definately bringing back those litecoin days maybe more so.  Gpu rigs can be pieced together cheap enough and resold fairly easily. 
Glad to see you diving into it.  Sure there's huge fluctuations in price but none (and I mean none) have showed this much strength and early adoption as Eth. 
I missed the tailend of Ltc mining with gpu's but caught the rush of altcoins at the end of 2013 which was quite a rush.  One thing I've noticed is Eth rigs don't have to be screaming full tilt for a descent hashrate which makes them even more desireable around the house.
I think dollar to dollar and resellability, gpu mining has always been better than spending on inflated asic rigs.
Again it's always nice to see you tinkering away.

Thanks.

I had 1 rig 1 card.

Pushed to seven rigs 13 cards.

Sold a rig sold 8 cards.

Now have a three card rig
A 1 card rig
A 1 card rig
And three empty rigs.
All paid for.

If the r9 480s are good I can add six cards back.

So,far pretty happy.

Please support sidehack with his new miner project Send to : 1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr
I mine alt coins with https://simplemining.net I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
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June 15, 2016, 04:35:29 AM
 #379

That's a cute little rig. .How much did it cost you to set it up all parts and labor considered

Blow my mind, Blow my COCK!
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June 15, 2016, 07:10:23 AM
 #380


I know that keeping cards under 70c is big.


 I can agree with that as a general rule, but the R9 290 is widely reported to actually be comfortable in the 80s on a long-term basis (which makes it a RARE exception).

 Says a lot they don't thermal throttle 'till 94 (on the reference cards anyway), though I don't RECOMMEND running them that hot for long.

 
 I may have to go FrankenFan on some of my GPUs once I get moved and (probably) can go open-rig setup with risers - I'll have the SPACE to put real fans on the cards then.

 I LOVE having several 7750s with Delta 60mm screamers twist-tied to them - they just don't overheat, even in the recent heatwave we had none of them managed to get to 60 and most were in the low-mid 50s despite being overclocked to the max.
 They're also buried deep inside 2u rack mount cases, so the sound isn't noticeable over all the OTHER fan whoosh sounds in this room....


 
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