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Author Topic: My 1 gpu now 11gpus 5rigs for Ethereum. 45 days of mining. Photos thoughts.  (Read 49251 times)
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vapourminer
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what is this "brake pedal" you speak of?


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May 31, 2016, 11:28:46 AM
 #281

phil

you dual mine decred with any of those rigs? I didnt initially as it adds about 35-40 watts per 390 but right now the plan is Ill just sell the decred to offset power costs, and will keep the eth for the time being.

I started with one sapphire nitro r9 390 on the daily driver (nitro is very quiet cant even hear it @ 50% fan in a NZXT H2 case), then resurrected an old btc miner and put another nitro 390 in it. that one is open air with suspended cards in the basement. now a sapphire r9 380 ITX is on its way and im hunting for a cheap 370 to finish the basement rig (only 3 pcie slots and a seasonic x750, so thats about all it can take). basement rig runs ubuntu 15.10.

plan to xfire the 390s in my next game build, the 380ITX goes into my HTPC later, the future r? 370 will be spare. so instead of selling rigs (nice plan) I plan to just reuse the cards after eth mining is no longer profitable.

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May 31, 2016, 11:42:35 AM
 #282

is it worth to make an rig next month? i pay about 0.08 cents per kw/h

$0.08 /kWh is good price. If you buy the 6x R9 390 and a mother board with 6 PCIE slots, you might ROI.

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May 31, 2016, 11:45:08 AM
 #283

is it worth to make an rig next month? i pay about 0.08 cents per kw/h

you should roi in 3 months, assuming diff stay the same, and assuming your build will cost around $2k(6x390)
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May 31, 2016, 03:31:43 PM
 #284

is it worth to make an rig next month? i pay about 0.08 cents per kw/h

you should roi in 3 months, assuming diff stay the same, and assuming your build will cost around $2k(6x390)

sounds about right, plus you will have resale value of 6 390s, which shouldnt be too bad even if the new cards come out.  and after that its the end of ETH probably (for mining), but there will be more coins to mine Smiley

                                 
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May 31, 2016, 04:09:20 PM
 #285

is it worth to make an rig next month? i pay about 0.08 cents per kw/h

you should roi in 3 months, assuming diff stay the same, and assuming your build will cost around $2k(6x390)

sounds about right, plus you will have resale value of 6 390s, which shouldnt be too bad even if the new cards come out.  and after that its the end of ETH probably (for mining), but there will be more coins to mine Smiley

The PoW could finish later than expected. At first, we heard it is early next year, but it is delayed.

 
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May 31, 2016, 05:05:17 PM
 #286

is it worth to make an rig next month? i pay about 0.08 cents per kw/h

you should roi in 3 months, assuming diff stay the same, and assuming your build will cost around $2k(6x390)

sounds about right, plus you will have resale value of 6 390s, which shouldnt be too bad even if the new cards come out.  and after that its the end of ETH probably (for mining), but there will be more coins to mine Smiley

he can actually roi much faster if he sell his right or even take a big profit, from it
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May 31, 2016, 05:10:51 PM
 #287

is it worth to make an rig next month? i pay about 0.08 cents per kw/h

you should roi in 3 months, assuming diff stay the same, and assuming your build will cost around $2k(6x390)

sounds about right, plus you will have resale value of 6 390s, which shouldnt be too bad even if the new cards come out.  and after that its the end of ETH probably (for mining), but there will be more coins to mine Smiley

The PoW could finish later than expected. At first, we heard it is early next year, but it is delayed.


so after POW -- the POS (no mining) --- then it will be mining again after POS? like BTC?

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May 31, 2016, 05:45:22 PM
 #288

is it worth to make an rig next month? i pay about 0.08 cents per kw/h

$0.08 /kWh is good price. If you buy the 6x R9 390 and a mother board with 6 PCIE slots, you might ROI.

if $0.08 /KWH is good then $0.0439 / KWH (what i just started paying) must be killer. should i build a rig since mine electric is so cheap? i judt bought an Asus r9 390 strix to get started...sorry to hijack the thread.
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May 31, 2016, 06:49:08 PM
 #289

is it worth to make an rig next month? i pay about 0.08 cents per kw/h

$0.08 /kWh is good price. If you buy the 6x R9 390 and a mother board with 6 PCIE slots, you might ROI.

if $0.08 /KWH is good then $0.0439 / KWH (what i just started paying) must be killer. should i build a rig since mine electric is so cheap? i judt bought an Asus r9 390 strix to get started...sorry to hijack the thread.

For the mining, it is better to buy the cheap R9 390 with few fans. The fans use power. I have $0.2 eletricty, so I have to under volt and under clock, they use less energy, so fan is less important.

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May 31, 2016, 08:29:01 PM
 #290

$0.08 /kWh is good price. If you buy the 6x R9 390 and a mother board with 6 PCIE slots, you might ROI.

PSU probably will cost a lot!

And if GPUs is easy to sell on ebay - PSU not
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May 31, 2016, 10:17:30 PM
 #291

if your pockets are shallow don't build a six card rig as they are a mining rig.

I like 2, 3, 4 card rigs that can fit in a case and be used to game with.

you also have flexibility to mine completely different coins on different pools.

and there are good psus that will do two or three cards easy.

two gpus on newegg

http://www.newegg.com/Product/Product.aspx?Item=N82E16814131673&cm_re=powercolor_r9_380-_-14-131-673-_-Product


psu

http://www.amazon.com/EVGA-SuperNOVA-PLATINUM-Crossfire-Warranty/dp/B010HWDPKW/ref=sr_1_2?

mobo
http://www.amazon.com/Gigabyte-LGA1151-Intel-Motherboard-GA-H170M-D3H/dp/B012N6LM1Y?

m2 ssd good deal as it is big
http://www.amazon.com/SanDisk-X400-SD8SN8U-512G-1122-2280-512GB/dp/B0194MV3XM/ref=sr_1_1?

ram

http://www.newegg.com/Product/Product.aspx?Item=N82E16820232302

g4400 or g3900 cpu

parts above are under 730  for a 38-40 mh rig that does uses about 320 watts

i left out cost for windows 7

this rig above should profit  more then 130 a month  while keeping value.for a while .

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Ooh La La, C'est Zoom!


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June 01, 2016, 12:31:38 AM
 #292

I have just installed a new distribution board for my workshop.

I have 63Amp/3-phase/240v to play with and I would like to have some form of metering so that I know I don't exceed 48amp per phase. My electrician told me that a simple "clamp meter" will do. He recommended me some China branded meter and I was thinking of a better solution...

Any recommendations? In amazon, I see many types from 20 bucks to hundreds of dollars for brands like Fluke etc.

Wish list... can the meter be displayed to an external LCD screen?

http://www.measurlogic.com/MonitorsMeters/PanelMount/cvm-96.html

This isn't what is in the lab, but it's similar.

- zed

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June 01, 2016, 05:32:36 AM
 #293

Hah, neat little rig. I want a Killawatt and thermal scanner Cheesy anyway, thanks for sharing your rig and your numbers.

Would have been nice to be set up in the fall, but seems like it's paying off recently too. Maybe save half/sell half? Nothing wrong with hedging your bets.

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June 01, 2016, 10:39:19 AM
 #294

$0.08 /kWh is good price. If you buy the 6x R9 390 and a mother board with 6 PCIE slots, you might ROI.

PSU probably will cost a lot!

And if GPUs is easy to sell on ebay - PSU not

PSU is not easy to sell on Ebay, it can only get 25% of the original price. For the good graphics cards, the depreciation is low.

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June 01, 2016, 09:08:55 PM
 #295

$0.08 /kWh is good price. If you buy the 6x R9 390 and a mother board with 6 PCIE slots, you might ROI.

PSU probably will cost a lot!

And if GPUs is easy to sell on ebay - PSU not

PSU is not easy to sell on Ebay, it can only get 25% of the original price. For the good graphics cards, the depreciation is low.

psu does not sell at 25% on ebay.

you can get 60%  if all parts are included on quality psu's

here are some typical sales for used psu's

http://www.ebay.com/itm/Seasonic-850W-80Plus-Gold-Power-Supply-SS-850KM-Intel-AMD-ATX-PC-120MM-Modular-/182155134448?http://www.ebay.com/itm/Open-Box-Seasonic-ATX12V-EPS12V-660-Power-Supply-SS-660XP2-/131792955451?

if you are not a big seller on ebay fees and the like will cut into the sales prices but not as low 25%.


also people will buy them here for  50%  or 60%  if the seller here is good.

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June 01, 2016, 11:33:52 PM
 #296

Nice rig, and good time of ROI Shocked
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June 02, 2016, 02:17:41 AM
 #297

I have just installed a new distribution board for my workshop.

I have 63Amp/3-phase/240v to play with and I would like to have some form of metering so that I know I don't exceed 48amp per phase. My electrician told me that a simple "clamp meter" will do. He recommended me some China branded meter and I was thinking of a better solution...

Any recommendations? In amazon, I see many types from 20 bucks to hundreds of dollars for brands like Fluke etc.

Wish list... can the meter be displayed to an external LCD screen?

http://www.measurlogic.com/MonitorsMeters/PanelMount/cvm-96.html

This isn't what is in the lab, but it's similar.

- zed

thanks -- I will make do with the clamp for now, and maybe consider this later

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June 02, 2016, 07:44:02 AM
 #298

if your pockets are shallow don't build a six card rig as they are a mining rig.

I like 2, 3, 4 card rigs that can fit in a case and be used to game with.

you also have flexibility to mine completely different coins on different pools.

and there are good psus that will do two or three cards easy.

two gpus on newegg

http://www.newegg.com/Product/Product.aspx?Item=N82E16814131673&cm_re=powercolor_r9_380-_-14-131-673-_-Product


 Don't skimp on the GPUs. Sapphires are only $10-$20 more, or at least go Asus/EVGA/Gigabyte/MSI.

Quote

 That SSD is serious overkill, can save $50 easy by going with a 50-100 GB M2 SSD if you insist on one, or go with an actual hard drive. I've been seeing some 2TB units in the under $50 range (refub), HGST is NOT cheap stuff (I've switched to them the last couple years over WD after doing some research and watching Seacrap run WD reliability into the ground).
 Should also be able to save some $$ by going with an AMD motherboard/CPU vs Intel - Intel boards and CPUs tend to be noticeably more expensive, while eating comparable power (both have quite a few 45Watt TDP cpus for commonly-available sockets).
 My 2-card rigs are using AMD motherboards that cost around $65 as I recall, but I didn't go "low end" on the CPUs (A10-7860K is severe overkill for a "mining" machine, but I have other uses for the GPU on those).

Quote

i left out cost for windows 7


 Zero. Go LINUX.

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June 02, 2016, 01:49:42 PM
 #299

if your pockets are shallow don't build a six card rig as they are a mining rig.

I like 2, 3, 4 card rigs that can fit in a case and be used to game with.

you also have flexibility to mine completely different coins on different pools.

and there are good psus that will do two or three cards easy.

two gpus on newegg

http://www.newegg.com/Product/Product.aspx?Item=N82E16814131673&cm_re=powercolor_r9_380-_-14-131-673-_-Product


 Don't skimp on the GPUs. Sapphires are only $10-$20 more, or at least go Asus/EVGA/Gigabyte/MSI.

Quote

 That SSD is serious overkill, can save $50 easy by going with a 50-100 GB M2 SSD if you insist on one, or go with an actual hard drive. I've been seeing some 2TB units in the under $50 range (refub), HGST is NOT cheap stuff (I've switched to them the last couple years over WD after doing some research and watching Seacrap run WD reliability into the ground).
 Should also be able to save some $$ by going with an AMD motherboard/CPU vs Intel - Intel boards and CPUs tend to be noticeably more expensive, while eating comparable power (both have quite a few 45Watt TDP cpus for commonly-available sockets).
 My 2-card rigs are using AMD motherboards that cost around $65 as I recall, but I didn't go "low end" on the CPUs (A10-7860K is severe overkill for a "mining" machine, but I have other uses for the GPU on those).

Quote

i left out cost for windows 7


 Zero. Go LINUX.


 Part of the build is you can up grade it into a gamer and sell it.  thus the killer ssd.   if you are certain  you will only mine you can get a 50 dollar m2 ssd

http://www.amazon.com/MyDigitalSSD-Super-Cache-Solid-State/dp/B00EZ2E8NO/ref=sr_1_1?s=pc&ie=UTF8&qid=1464875157&sr=1-1-spons&keywords=m2+ssd&psc=1


this rig will pay for the 2 cards in 70 days.  sell them at that time  and order the newer r9 480

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 03, 2016, 03:21:01 AM
 #300

Just saw the R9 480 announcement...

480 just as good as 390 in terms of raw power and 150watts only, and it retails for $199 !!!

This is really good timing since we need powerful GPUs suitable for ETH mining, draws less power and recyclable for a decent gaming rig!

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