Topic: My 1 gpu now 11gpus 5rigs for Ethereum. 45 days of mining. Photos thoughts. - page 30. (Read 50633 times)

 There was a different but very similar series of TheStilt bios for the 290x.



 I'm not saying you SHOULD use the highest-voltage TheStilt bios - I just haven't had the time to play around with the lower-voltage options, and the current setup is working so much better than stock was I'm not real inclined to mess with it 'till I get other higher-priority stuff done - like my current MOVE....


 Power consumption did seem to go up - but on the STOCK bios the things thermal limited like crazy, ran consistantly at 94c AND UNDERCLOCKED THEMSELVES to stay there (ballpark 850 core on some of them) and consistanty hashed at more like 20-22Mh/s - and I was seeing more like 250 watts power consumption even WITH the bios-imposed thermal-driven underclock.
 With TheStilt bios, they're running more like 80c AND I can clock them at 1100/1250 and get 29-30 MH/s hashrate, but they appear to be consuming about 300 watts - so they ARE running more efficiently, just need more power to support the major overclock (stock clock on my Sapphire reference design is 947 core).

  IME and per a LOT of comments from other folks that had similar issues the 16.x AMD drivers are NOT good for mining - stick with 15.12 or 15.7 (I think I'm running 15.12 on my R9-based machines).


 R9 290 and R9 290x should coexist without issues in the same machine. I've got a couple rigs running a R9 290 and a R9 280x without problems - as long as the cards are same or very close generation (don't mix GCN and pre-GCN for example) and can use the same driver version they should run fine together.
 From what I've seen posted around though, the R9 290x isn't any faster at Ethereum mining than the R9 290 and consumes a little more power - but since they're inherited it's not really an issue, I just wouldn't pay the premium for a R9 290x over a R9 290 with the expectation of getting higher hashrate/earnings.

if its amazon dont they let you cancel until it ships?  you may have to call them.

at any rate, the mining of them would probably be the same.. its not a huge deal.. you get about 15m per 370. im mining with 270x  and i get 13m each.

Try -100, 900/1125. If that works give some more core until it crashes and you have found your sweet spot. Hawaii with 512-bit memory bus is not memory limited on dagger like most other cards.

yea it's to late because of were i bought it ..... dam same price to i wish i had done better shopping.

In MSI Afterburner , I don't have the unit for voltage , I can go from -100 to +100.
Is -100 the same as -100 mV ?
EDIT : sorry after closer look , the unit was shown. Question solved !

Do you guys know if I can reduce voltage with a light overclock ?
With R9 290, I've tried to push core clock from 950 to 1000 Mhz, and reduced Memory clock from 1250 to 1200 as it appears Memory clock has not effect on Hashrate.
But I don't know if undervolt is suitable in that case ?

the 4gb version would have probably been a better purchase for future sale. if its not too late.

http://www.newegg.com/Product/Product.aspx?Item=N82E16814202152&cm_re=r7_370_4gb-_-14-202-152-_-Product

You can also undervolt the 290 by 100 mV  and get similar result. But R9 390 is a little bit more efficient.

i broke down and bought two of these

http://www.amazon.com/gp/product/B00ZQ9JKE2/ref=s9_simh_gw_g147_i1_r?ie=UTF8&fpl=fresh&pf_rd_m=ATVPDKIKX0DER&pf_rd_s=&pf_rd_r=1BRR86B18CME9RD5ZAXG&pf_rd_t=36701&pf_rd_p=5d23eaf6-6278-49c1-b6df-7de0cb9b3a26&pf_rd_i=desktop

two riser all ready have the memory cpu psus if i need more then 850 i can use a 1300 vga and this i hope was a deal

http://www.ebay.com/itm/262410762510?_trksid=p2060353.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

I hope to get four more gpus to fill it .

It would be R9 290.

Zed - nice experience!

here is a screen shot you guys probably want to see..
i havent messed with any power settings yet.. or tweaked anything.. the fans dont even turn on until the card hits 88c or so.. so im going to need to set a custom fan profile.. btw at 100% they spin at almost 6000 rpm.. sound like an s7 in my pc case..




ps my background isnt the real earth.. its a screenshot from a game called elite dangerous..

I'm relatively new to ETH, but decided to build a GPU miner. I dipped my toes into the BTC and LTC world back in late 2011/early 2012 with the old CPUs and crappy GPUs I had kicking around at the time. Imagine my surprise when I get back around to checking and see that the LTC were worth over 4USD each.    BTC was already out of my reach as FPGA miners were available and BFL (and others) was taking our money and blowing sunshine up our collective asses regarding their forthcoming ASIC miner.

Anyway, I took a chance on gpushack.com and purchased their 4 GPU package (mobo, CPU w/ cooler, RAM, and ethOS on a 16GB SSD): http://gpushack.com/collections/gpushack/products/mobo-cpu-ram-ssd-bundle-for-4-gpus  and a USB PCI x16 Riser (probably out of stock as it is not listed on the website right now).

From Amazon, using a bunch of GCs, I ordered an MSI R7 370 Gaming 4G (~130 after rebate) and EVGA SuperNOVA 650 G1 80+ GOLD power supply.

I assembled all of the pieces and cranked it up.




With a little tuning the MSI R7 370 is hashing away at a steady ~15MH/s with a GPU temp of ~51C for almost a week now.

My ethminer local.conf file:




Fan noise isn't bad, but I'm somewhat used to datacenter/network closet/network room/equipment test lab fan noise levels at work, so maybe I'm biased. :-) But with the miner running on the shelf below the TV, I can watch TV (F1, Blancpain GT, GP2, IMSA, WEC, IndyCar, BTCC, V8 Supercars, etc.) and not have to crank up the volume.

ethOS is Linux and a Debian variant and comes pre-configured so that it starts mining as soon as it boots. You have to be comfortable editing some text files to configure it for your wallet and pool of choice, but it's pretty easy to do, and the documentation provided on the ethOS website is pretty decent. The ethOS build I have can overclock the AMD cards, both core and memory, and tweak the core voltage (though it is still experimental). The nice thing about starting mining as soon as the system boots is that it automagically restarts when there is a power outage (like happened where I live last night), so that when I got home from my day job, the miner was already up and running.

Stats prior to power outage: http://845557.ethosdistro.com
Stats since the power came back: http://10fbd3.ethosdistro.com

I'm pretty happy with the rig, and thinking about adding a second GPU before too long.

Cheers,

- zed

If you use the R9 390, you can undervolt them about -100mV and get around 31 MH/s depending on your cards.

Amazon gives me a good price for this set up (I have 850W power supply)

Crucial Ballistix Sport 8GB Kit (4GBx2) DDR3 1600 (PC3-12800) 240-Pin UDIMM Memory BLS2KIT4G3D1609DS1S00/BLS2CP4G3D1609DS1S00 by Crucial
$33.98

ASRock Motherboard ATX DDR3 1066 LGA 1150 H81 PRO BTC by ASRock
$72.09

Intel Pentium Processor G3240 (3M Cache, 3.10 GHz) BX80646G3240 by Intel
$58.94


Patriot Torch 120GB SATA 3 2.5 (7mm height) Solid State Drive - With Transfer Speeds of Up-To 555 MB/s read and 535 MB/s write by Patriot
$39.99

Subtotal (4 items): $205.00

Should I start from loading with 2 R9 390 and later add 2 more?

Is this card good?

XFX DOUBLE DISSIPATION R9 390 1015MHZ XXX OC 8GB DDR5 DISPLAYPORT HDMI DUAL DVI
$320

my cards came a day early!!!

yes it will be my future setup, and it actually cost less than expected, only 200 for cpu, mobo, ram and ssd, plus 200 for evga 1kw and 50 for risers, so only 450 not 500

i can find everything at around 430 euro on amazon, risers on ebay

getting 5mh bonus per overclocked card = 30mh total bonus on the 6gpu rig .
Almost the same as a bonus gpu in a non overclocked rig  : paying 6 GPU and paying an extra 600w electricity.

With cheap electricity why not. But for the extra 600w , another PSU is required.. not sure if it's profitable in the end.


But I'm interested by more information about the bios mod anyway !
Maybe it allow to undervolt too ?

Interesting setup for 6 GPUs

Thank you!

with any card you will need to find their optimal power/mh unless you have free electricity.  

The 290's out of the box are outside their optimal power/performance window. And if you overclock them, their power consumption increases logarithmically, that is to say, for a 15% overclock, the power usages increases by 50%  (not accurate numbers, but you get the idea).

downclocking them and undervolting is where the true profit is.



To see how many watts your card is using, download HWINFO64 and run the sensors. Scroll down to your "GPU" and add the VDDC watts + AUX watts.
Out of the box, the 290 is using ~230watts depending on temps. Which is crazy high.

I am not against a six card rig.

But for me two card rigs that I sell to friends family and some clients works well for me.

I had lots of parts on hand so my now five rigs are almost fully paid off.

For a two card rig the gigabyte b75m is really good mobo.