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Author Topic: My 1 gpu now 11gpus 5rigs for Ethereum. 45 days of mining. Photos thoughts.  (Read 49173 times)
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citronick
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May 28, 2016, 05:58:06 PM
 #241

You can use the MSI afterburner to undervolt and over clock the R9 390. I would recommend to use -100 mV and 1100/1200 frequency.

Trying right now - thank you!

Just got this to bed - and so far so good.

MSI R9-390
-100Mv / 1050 / 1125
5 x 390 = 151MHs

what is the consumption of this setup? 5 x 200w right?

Around 1490-1520w according to kill-a-watt (all in).
I think more than 200w per GPU because CDM is mining in dual mode.

5x390/powered USB risers/ASrock H81-BTC/Celeron1840/8G Ram/120GB SSD/W8.1/Catalyst-16.3.2/EVGA1600w-G2
CDM v4.4, running ETH (-ethi 16) and DCR (default)
ETH: 30.2 MHs per GPU, 5 Total = 151 MHs
DCR: 453 MHs per GPU,  5 GPU Total = 2265 MHs
Temps = 68-70c

Afternotes:
I have not applied Eliovp's Nano mod yet but I have a 5 x Sapphire R9-Nano rig in production with settings:
-100mV, 1125, 300 delivering total 133.6MHs (ETH), 2004MHs (DCR) at only 1005watts.
With his mod, 6 x GPUs yields 185MHs using just over 1000 watts!




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May 28, 2016, 06:01:42 PM
 #242

That's nice ! I love to watch mining rigs pictures. Your one looks nice, and since it didn't costed you a penny, everything is good Smiley !

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citronick
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May 28, 2016, 06:18:49 PM
 #243

You can use the MSI afterburner to undervolt and over clock the R9 390. I would recommend to use -100 mV and 1100/1200 frequency.

Trying right now - thank you!

Just got this to bed - and so far so good.

MSI R9-390
-100Mv / 1050 / 1125
5 x 390 = 151MHs

yeah I find -100 to -75 mv   with 1050 to 1075 work well for 390's

..   I GOT LUCKY I grabbed an uncle see screenshot.

They SAY  1 COMES  every 166 payouts  I got one in 6 payouts

9.47 payout vs  4.95


Nice one there!

My uncles are only 3.x or 2.x ETHs.... never got a nice fat payout like yours

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May 28, 2016, 06:54:52 PM
 #244

I've increased core clock to 1120 and left voltage and memory clock default

Got the mining increased from 29MHs to 32MHs

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May 28, 2016, 07:28:36 PM
 #245

I've increased core clock to 1120 and left voltage and memory clock default

Got the mining increased from 29MHs to 32MHs



It will consume a lot of power. With the 1120 Core frequency, some cards will work with -100 mV. That will save you 20% energy.
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May 28, 2016, 08:08:14 PM
 #246

It will consume a lot of power. With the 1120 Core frequency, some cards will work with -100 mV. That will save you 20% energy.

Thank you for suggestion

I actually put all values to default - but mining speed remains on the level of 32MHs

So will leave like that for couple of hours
citronick
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May 29, 2016, 12:57:09 AM
 #247

It will consume a lot of power. With the 1120 Core frequency, some cards will work with -100 mV. That will save you 20% energy.

Thank you for suggestion

I actually put all values to default - but mining speed remains on the level of 32MHs

So will leave like that for couple of hours

The 390 is power hogger, I once metered it at 270w per GPU full speed (31-32MHs) and at 6 cards, almost 2000w (when dual mining), when I had to do a 2 x PSU setup (1300w x 2).

Although it was nice to get a monster rig at 185-190MHs but you sacrifice a PSU (which you could have used for 2nd rig) and drawing too much power from a 20A power point (dangerous). Keeping this setting this way will be too dangerous and will surely kill your PSU sooner or later.

With several good tips from Philip and other senior members, I settled for 5 x PSU design, with max underclocking and slight overclocking using Afterburner. I may sacrifice some MHs, but it keeps the rig investment safe and also prolong life of PSU and avoid shorting your whole house! Also, you can certainly get more MHs from 2 rigs with 1 PSU each (ie. 5 x 390 = 151MHs with 1600w PSU, times 2 = 302 MHs total for 2 identical rigs).

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May 29, 2016, 01:30:19 AM
 #248

Also, you can certainly get more MHs from 2 rigs with 1 PSU each (ie. 5 x 390 = 151MHs with 1600w PSU, times 2 = 302 MHs total for 2 identical rigs).

All make sense!

Question - I have 2x R9 390 on one 850W PSU

Is it safe to use it 24x7 with default GPU settings?

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May 29, 2016, 01:34:34 AM
 #249

Also, you can certainly get more MHs from 2 rigs with 1 PSU each (ie. 5 x 390 = 151MHs with 1600w PSU, times 2 = 302 MHs total for 2 identical rigs).

All make sense!

Question - I have 2x R9 390 on one 850W PSU

Is it safe to use it 24x7 with default GPU settings?



i don't have a kill-a-watt device.. i have a 850w PSU with a 390x and a 390 ..24/7

EDIT: anybody know where can i buy a kill-a-watt device for 240V?
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May 29, 2016, 01:36:19 AM
 #250

It will consume a lot of power. With the 1120 Core frequency, some cards will work with -100 mV. That will save you 20% energy.

Thank you for suggestion

I actually put all values to default - but mining speed remains on the level of 32MHs

So will leave like that for couple of hours

The 390 is power hogger, I once metered it at 270w per GPU full speed (31-32MHs) and at 6 cards, almost 2000w (when dual mining), when I had to do a 2 x PSU setup (1300w x 2).

Although it was nice to get a monster rig at 185-190MHs but you sacrifice a PSU (which you could have used for 2nd rig) and drawing too much power from a 20A power point (dangerous). Keeping this setting this way will be too dangerous and will surely kill your PSU sooner or later.

With several good tips from Philip and other senior members, I settled for 5 x PSU design, with max underclocking and slight overclocking using Afterburner. I may sacrifice some MHs, but it keeps the rig investment safe and also prolong life of PSU and avoid shorting your whole house! Also, you can certainly get more MHs from 2 rigs with 1 PSU each (ie. 5 x 390 = 151MHs with 1600w PSU, times 2 = 302 MHs total for 2 identical rigs).


390 is 270w in dual mining?

how many 390s can run full speed in a seasonic x-1250?
citronick
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May 29, 2016, 01:45:12 AM
 #251

Also, you can certainly get more MHs from 2 rigs with 1 PSU each (ie. 5 x 390 = 151MHs with 1600w PSU, times 2 = 302 MHs total for 2 identical rigs).

All make sense!

Question - I have 2x R9 390 on one 850W PSU

Is it safe to use it 24x7 with default GPU settings?



A good PSU (ie. EVGA-Gold, Platinum) will let you exceed the limit for spikes etc. but I don't think design of PSU is for you to constantly over the limit. Infact, a good practise is to consume 80% of the PSU so that there is safe buffer. This will surely keep the PSU running safe and within limits. This would also mean that your other components like mobo, GPUs, CPU etc are kept optimally powered... so your overall investment is protected and perhaps your chances of recycling or selling them off in the future is very good.

Mining is 24x7 affair (unless your need to cut back during summer etc), 850w PSU is good enough for 2 x GPU rig, running 24x7, as long as you have proper cooling like fans etc. The 390s runs very hot.

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May 29, 2016, 02:01:17 AM
 #252

since finding a kill-a-watt for 240V is rare and an existing one which can operate at 110v-240v is expensive

i found a solution for me:

tools needed:
1) clamp amp meter with voltmeter or clamp amp meter and a voltmeter
2) extension outlet (live and neutral wires are separated)

i already have a clamp meter with a volt meter that looks like this.



ill measure amps and volts

ohms law say amps x volts = watts


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May 29, 2016, 02:45:53 AM
 #253

since finding a kill-a-watt for 240V is rare and an existing one which can operate at 110v-240v is expensive

i found a solution for me:

tools needed:
1) clamp amp meter with voltmeter or clamp amp meter and a voltmeter


2) extension outlet (live and neutral wires are separated)   >>>>   you have two hot wires and a ground you may or may not have a neutral in a 240 volt circuit.



i already have a clamp meter with a volt meter that looks like this.



ill measure amps and volts

ohms law say amps x volts = 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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May 29, 2016, 02:56:57 AM
 #254

It will consume a lot of power. With the 1120 Core frequency, some cards will work with -100 mV. That will save you 20% energy.

Thank you for suggestion

I actually put all values to default - but mining speed remains on the level of 32MHs

So will leave like that for couple of hours

The 390 is power hogger, I once metered it at 270w per GPU full speed (31-32MHs) and at 6 cards, almost 2000w (when dual mining), when I had to do a 2 x PSU setup (1300w x 2).

Although it was nice to get a monster rig at 185-190MHs but you sacrifice a PSU (which you could have used for 2nd rig) and drawing too much power from a 20A power point (dangerous). Keeping this setting this way will be too dangerous and will surely kill your PSU sooner or later.

With several good tips from Philip and other senior members, I settled for 5 x PSU design, with max underclocking and slight overclocking using Afterburner. I may sacrifice some MHs, but it keeps the rig investment safe and also prolong life of PSU and avoid shorting your whole house! Also, you can certainly get more MHs from 2 rigs with 1 PSU each (ie. 5 x 390 = 151MHs with 1600w PSU, times 2 = 302 MHs total for 2 identical rigs).

  I am mining with qtminer just eth coin   I spend 2500 watts for about 310mh  you are spending more watts about 2800  for dual mining.  I am maxed for heat it was 92f today  and I can't run more power then the 2400-2500 watts.  So we are near the same hash what do you eran with the second coin?
i figure it cost you 400 - 600 more watts  which is 12 kwatts a day and maybe 360 -375 kwatts a month.
at my insane summer prices of 18 cents I need 67.50 $ in extra power   about 2.25$ a day does the second coin earn $5 a day?

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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May 29, 2016, 03:13:38 AM
 #255


2) extension outlet (live and neutral wires are separated)  


you have two hot wires and a ground you may or may not have a neutral in a 240 volt circuit.


from where i live there are only two wires, one live at 240V and one neutral.
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May 29, 2016, 06:56:32 AM
 #256


The best case fan if you are attempting some silence


 I don't worry about silent. I worry about AIRFLOW.

 Delta EHE and SHE models are my FRIENDS!

 But yes, I always plan on the 3+4 pin connector setup option on them.

Quote

My most recent "monster" came in this case - Newegg "Avatar Scryptminer" unit that I seem to have gotten the last one of (they have a different version with a higher-end CPU but only 2 GPUs still available, same price IIRC).
I did swap one of my R9 290s into it in place of one of the R9 280x it came with, and might swap one of the other 280x for a 290 out of one of my other systems for better cooling.
For scale - it's 25-26 inches long AND high - biggest case I've ever worked with.

http://www.enermaxusa.com/eca1092ag.php

 I figure it will, LONG term, become a serious file server, and short-to-medium term my "system to clone" machine.
 I don't think I've ever seen a non-propriatary motherboard (including ALL of the EATX multi-CPU boards I've worked with) it won't fit EASILY.
 The one down side it the bloody massive SIDE air intake - front intake is fair but won't fit 38mm fans as far as I can tell and the drive cage blocks a lot of the airflow from the front. Lots of top and bottom intake area though, even if I used dual PS (it's specifically designed to fit 2 standard ATX power supplies) - and with riser(2), it will fit *5* dual-slot cards IN THE CASE by design (or if you could find the RIGHT motherboard possibly without the risers). The Biostar below + 1x 1-16 riser would work for 5 cards that way - no cutting needed.

 Down side - top-mounted "front panal" but this thing is soo big it almost HAS to be floor-mount, which mitigates that issue somewhat, and I DO like the "drive dock on top".



 The case you listed only has 7 expansion slots - you CAN'T build a 4-card rig in it as the dual-width cards won't FIT.

 I used this on a previous build - it works but I'm not real happy with it overall.

http://www.newegg.com/Product/Product.aspx?Item=N82E16811133271&cm_re=versa_case-_-11-133-271-_-Product

Can't mount 38mm fans in the front without cutting some of the plastic off on the inside of the front panal, and I'm finding the top-mounted "front panal" stuff to be a pain to work with. Your milage might vary.

Quote

 Was thinking about that one for a 4-blower-type-GPU build at one point. Biostar don't have a HUGE great rep but I've had good luck on longevity out of their motherboards, just not the highest feature or performance.

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May 29, 2016, 07:06:29 AM
 #257


390 is 270w in dual mining?

how many 390s can run full speed in a seasonic x-1250?

 4 fairly comfortably, 3 with TONS of headroom.
 That's similar power consumption to my R9 290s, and I'm running 2 rigs with 2 of them and an A10-7860K VERY comfortably on the X-850 - 660 watts at the wall or some such so only pushing about 600 watts actual consumption.

 Rest of the system is eating close to 100 watts - if you build a 4-way system for efficiency should work out to more like 1050ish of the 1250 rating.




Quote from: pvs-jib

Question - I have 2x R9 390 on one 850W PSU

Is it safe to use it 24x7 with default GPU settings?


 See above, VERY safe with a good quality power supply.

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May 29, 2016, 07:47:34 AM
 #258

speaking about good fan, there is the noctua industrial 14 cm, which is really good, it has 156 cfm, the temp are very cold with it

you can push it to 3k rpm, but it seems overkill for now, and it will be too loud
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Huh?


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May 29, 2016, 09:41:41 AM
 #259

since finding a kill-a-watt for 240V is rare and an existing one which can operate at 110v-240v is expensive

i found a solution for me:

tools needed:
1) clamp amp meter with voltmeter or clamp amp meter and a voltmeter
2) extension outlet (live and neutral wires are separated)

i already have a clamp meter with a volt meter that looks like this.

http://img.photobucket.com/albums/v356/glennjv/clamp.jpg

ill measure amps and volts

ohms law say amps x volts = watts


If i'm not using my Powerplugs i do the same thing, if you do it right, it's mostly even more accurate Smiley.

speakinbg about good fan, there is the noctua industrial 14 cm, which is really good, it has 156 cfm, the temp are very cold with it

you can push it to 3k rpm, but it seems overkill for now, and it will be too loud

http://www.bigassfans.com Smiley

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May 29, 2016, 10:19:52 AM
 #260


390 is 270w in dual mining?

how many 390s can run full speed in a seasonic x-1250?

 4 fairly comfortably, 3 with TONS of headroom.
 That's similar power consumption to my R9 290s, and I'm running 2 rigs with 2 of them and an A10-7860K VERY comfortably on the X-850 - 660 watts at the wall or some such so only pushing about 600 watts actual consumption.

 Rest of the system is eating close to 100 watts - if you build a 4-way system for efficiency should work out to more like 1050ish of the 1250 rating.

4x 390s even if i overclocked them all?

currently my seasonic x-1250 is powering only 3x 280x overclocked, i run 4pcs 280x last month though.. just playing it safe i revert it back to 3x 280x.. the opposite side (from the fan) of that PSU is really hot.
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