Topic: My 1 gpu now 11gpus 5rigs for Ethereum. 45 days of mining. Photos thoughts. - page 35. (Read 50633 times)

I jumped in on (4) - 1 Powercolor and 2 XFX. [EDIT] Went ahead and ordered a fourth - 1 more SAPPHIRE

Literally a ground up gpu rig build for me but wanted to go ahead and get these cards on order.  Now to put together the rest of the machine!

I could but all three rigs are good for real pc's use.

Also allows me to do three different coins.
Also allows me to locate them in spots that can use the heat a bit.

I also had 2 fully functioning rigs  so cost to get them going was zero (well I only had 1 card)  

The third rig  had ram ssd psu so I got the one part on ebay a 6500t cpu.

I had multiple windows 7 disks.

so for 190 the cpu  and of course the gpus.

If I had to buy 3 psus  
If I had to buy 3 sets of ram
If I had to buy 3 cpus
If I had to buy 3 windows 7
If I had to buy 3 cases
If I had to buy 3 dvd players (I just moved the I had from rig to rig)


I did spend for the  new gpu cards
1 hd7970 was on hand.                                             = 0
1 r9 380 was a refub                                                 = 180 usd.
1 r9 390 was free due to amazon losing it in the mail   =  0
3 r9 390's were used                                                 = 900

total 1080
I sold 2 older cards for 200
down to                           880
the used cpu on ebay was 140  

total was 1020  I got a rebate here and there so I paid just under 975  for 3 pc's  fully set up and ready to mine eth coin.

they use :

475watts     for 52mh  with an  under clock titanium psu  2x 390's
505watts     for 53mh   with an under clock plat       psu   2x 390's
310watts     for 39mh   with an underclock gold       psu    1x 380 +  1x 7970


so 1290 watts for  144mh  seems good for now.



all on one rig I need a solid psu  which I do not have on hand the titanium 1600 is at buysolar's place running the s-7 in the solar array.

I have a 1200 watt psu in the box,  but it would be just short.   So I am not looking for it.

When gpu's where big in 2012

  I had 2x 4 card rigs  they were a hassle to run.

I had about 21-23 psu's and a lot of rigs. I sold most off after the move of btc to asic's.  I did well as I sold them as gamers and since every rig was paid off people liked them.

If I get tired of running these I will do the same sell them as gamer /miners.

I earn  some back  so selling these in july will mean profit .  As I will be almost paid off for all three rigs.

Selling a two card rig as a gamer/miner is easier to do then selling a gamer or a miner.

I thought they limited it to two of each card per customer, but then again their limits are usually per order and you can just finish the order and then order another two of each.  I wonder how much difficulty is going to go up once all these new cards are hashing away.

I've tested 7990, 370, 380, 7950 and 7870.

For ethereum i find 2gb   r7 370 cards are the best.

In wnidows I get 15 to 15.5 mh/s per r7-370.

In Ubuntu its 13.5 to 14 MH/s on a 6 card rig.  - stock clocks 1030(gpu)/1400mhz (ram)

Cards run 60 to mid 70 C.  I have 18 GPUs going on.

A 6 card rig will pull about 760-7800 watts at the wall with a decent gold PSU.

If overclocked to 1150/1500, power goes up to 850-900 watts/hour.

Hash rate in ubuntu then goes to 16 to 16.5 mh/s

To reach 1150/1500 I had to use the MSI OC Gamer cards.


Anyway, good luck buddy.

i plan to use -100mV, and crank up GPU clock, and memory clock remain at stock, need to at least hit 30MHs per card based on this settings - anything below these parameters.... I will be utterly disappointed.

Why don't you run your 6 cards in 1 rig? Would be more efficient. Sell everything and pick up a 6 or 7 PCI-e slot motherboard.

I will get them tomorrow and will try them on both GenEthos and Claymore's.

here we are  about 1 month into this. APRIL 6 to May 3

I have 3 rigs

 an intel 2500t  ================ 2 r9 390 cards
an intel 3570    ================ 2 r9 390 cards
an intel 6500t   ================ 1 r9 380 card + 1  hd7970 card

I am doing about 145mh at 1300 watts

My net cost to get in has been about 1k
I pulled out 300 in profit

so I am 700 usd in the hole

I have 3 real rigs  that could be sold as gamers.  and coin price is decent.
I won't expand the setup until i can move  my last 2 avalon 6's to the solar array.

they will no longer make a profit at my soon to be 17 cent summer power cost.

but the gpu rigs will make money . If I mine for 2 months they will be paid off in full.  With zero need to sell them.  I will just hunt for a good coin.

anyone got the card with them yet?

need some early hash report for Claymore miner so that I can start day dreaming 

Well I'm trying to get around to getting my ONE card up...told a buddy in IOWA about this he has like 11 or so r9 280x laying around and all the parts to build

he is very happy....indeed......running amuk trying to get a couple rigs cobbled together

what is it ethererum network is not past 2 gh or some such....so they pull the plug when it hits 3 gh or some such ?

Anway....my point is I'm looking at a 2nd card in the frame work of 'discount' worse comes to worse and it goes POS coin on Tuesday I can think of it as a

discounted (or if I mine this long enough) free card with the 1 gpu and parts I already have on hand

(assuming I sell to usd.....when spending money on iffy toys always best to delude yourself it is for the 'fun' /toys and or 'challenge'

its denial but it works...I always seem to have more money going out then coming in.....so from a 'company store' point of view I'm doing my part

to keeping 'capitalism' going


anyway so anyone wanting to BUY a card to add to say a current rig or parts laying about...MAYBE in a couple months you get a free GPU card out of it

before it all goes pos coin (assuming you sell to USD or ethereum holds its price on you holding)

toys toys


stuff to do

I am lucky, I live an hour away from their warehouse so I get delivery in 1 day or can pick up same day. Ordered 18 (Xfx, PowerColor and Sapphire 6 each) and they are already packaging them for shipping

3 cards in a closed  case = heat.


I used to do 2 card builds in cases for btc

I had a dozen cheap cases from rosewill


this board allowed for 2 cards back then hd7970's

 http://www.provantage.com/gigabyte-technology-ga-b75m-d3h~7GIGB0HU.htm

cheap cpu 

cheap ram

and a 120 gb ssd 

plus a 650 watt psu

  2 card  cases are easy to cool

I am not saying you can't do a 3 or 4 card closed case  .

I am saying  they are hard to cool



http://www.newegg.com/Product/Product.aspx?Item=N82E16811147023&ignorebbr=1&cm_re=rosewill_case-_-11-147-023-_-Product

I ordered two of the PowerColors. Also thinking of driving over to MicroCenter for some instant gratification:)

the asrock h81 pro btc is the best you can find for intel, the pcie is on the second slot

nice I got two of these:

http://www.newegg.com/Product/Product.aspx?Item=N82E16814202221

these  may arrive from newegg by Friday.

and on bhphotovideo.com

two of these  which may arrive in 17 days.


http://www.bhphotovideo.com/c/product/1261970-REG/msi_radeon_rx_480_8g_rdn_rx_480_gddr5.html


if the two from newegg suck I will cancel the order from bhphoto.

I've got an even simpler (and less expen$ive) plan for long-term when I have the money to get serious about rig building.

 But for now, I need stuff in cases, "open" designs just won't work for my situation at this time.

 What I'd LIKE to find is a motherboard that uses the slot closest to the CPU as a PCI-E 16 slot, then the 4'th, then the 7'th - and a case that lets me mount a dual-width card in that 7'th slot. Doesn't exist in AMD that I can find, they all want to go "2-5-7" instead, and for Intel I pretty much have to go with a MB that has 4+ PCI-E 16-bit slots and just ignore the ones I don't need (but THOSE motherboards get pretty pricey to START with).


 After some tweeking, I've got 2 of my 950's overclocked, but the one in the "5" slot has poor airflow due to the next card largely blocking the fan intake and I had to UNDERclock it a little even with the fan on all 3 cranked up quite a bit. The default on those cards had ALL of them clocking well below the "base" clock speed as they were running quite hot with the WAY TOO LOW default fan settings (ballpark 50% fan even at 80C is CRAZY STUPID OVERHEAT territory, EVGA!).

 Plus side - they're dual Ball Bearing fans, they should LAST even when cranked up!


 What I really wish is card designers would quit making their cards so very very WIDE - leave some room for air to get TO the fan(s) on the card!

The price of the 480 RX is $300 in UK. That is almost 30% higher than the RRP. I will wait for the cheaper 4GB version.

woot.. stayed up all night long but they went on sale and i snagged 2 of them with expedited shipping..

http://www.newegg.com/Product/Product.aspx?Item=N82E16814150770

Finally got around to shoehorning the machine into the case I bought for it. Case was a BAD choice, fitting the 3'd card needed bracket removal surgury and I had to dig out an SFX power supply and kludge a mount to get everything to fit. On the other hand, I did a little digging and it looks like this would have been the case for MOST cases I've been able to find good pictures of, and ALL of the cases I currently own.

 Too many motherboard makers want to put a PCI-E slot on the very end of the motherboard, but the CASE makers don't believe in dual-wide slots in that last slot. I couldn't have fit the last card AT ALL if the case wasn't a "power supply on the bottom" design with some spare room - once I fit that SMALL power supply into the area intended to mount a standard ATX power supply (that space would have been plenty for even an EVGA 1300 G2, though the fan "honeycomb" hole on the bottom wouldn't have lined up quite right - it was a little off for my X1250).

 On the plus side, the Silverstone Gold 450watt SFX PS I had available is enough to run the machine fairly comfortably (eating about 350 watts at the wall, so it's only running at 75-80% of capasity).



 The Ethereum profits will probably partly fund my next ASIC purchaces, once the 14/16nm full custom gear finally shows up.
 The machine doesn't have SPACE to add more cards (unless I wanted to waste money adding a single-width PCI vidcard, which at best would add about 25% of the performance of the A10's on-chip GPU).


 I've also decided that the motherboard was a bad choice for future builds, unless I decide to go caseless on them - and even then, I'm starting to incline towards breaking down and paying the price for Intel next time around, as they have more flexability on their motherboard choices. By the time I do build another rig, I anticipate the next-gen AMD CPUs/APUs having arrived, and hopefully competing head-to-head with Intel at the HIGH end for the first time since the original Athlon 64 was released.