Topic: My second ZEC + XMR+ ETH thread builds info links thoughts and photos. - page 102. (Read 147923 times)

I really admire both of those companies for giving that Veteran discount... I think a LOT more companies should be doing this but at least nice that those 2 do...

Thanks Rocky... I am very happy with deciding on those 2 MSI 470's and am actually grappling with getting 1 more to put into my initial build.  And thanks for the input on the socket issue and reference to that Mobo.  It does look like a good one for a nice price but as you say, unfortunately out of stock and I really wanna get this thing at least mostly built next weekend.

So, I think I have decided to just go with the more recent CPU (i7-6800), which of course, requires a 1151 MoBo.

I am leaning heavily towards this one:

ASRock Z170 Extreme3 LGA 1151 Intel Z170 (currently only $100 after $10 off and $30 rebate)
http://www.newegg.com/Product/Product.aspx?Item=N82E16813157672

The thing I like about this one is that it has 3 PCIe x16 slots and 3 PCIe x1 slots... so, if I use 3 GPUs for my initial build, I can just use the 3 x16 slots and avoid using risers until if and when I decide to bump this rig up to 4, 5 or 6 GPUs.  I think this Mobo was recommended somewhere in this forum (maybe even this thread) but if anyone sees any issues with it for what I want to do, please let me know.

For RAM, I am leaning towards these ($69), which have great reviews and appear to be fully compatible with my MoBo and CPU of choice:

G.SKILL Ripjaws V Series 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 2133 (PC4 17000) Intel Z170 
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231884

I've also decided on an open build on this, which was also recommended in this thread ($42): assuming there will be no issue with the MoBo fitting but a bit concerned about the PSU.

DIYPC Alpha-DB6 Black Acrylic ATX
http://www.newegg.com/Product/Product.aspx?Item=N82E16811353001&ignorebbr=1

For PSU, I'm looking at this for $110 ($30 off regular price).  Even though this says Intel 4th gen compatible in the description, I read in at least 4-5 questions and answers on the newegg product page that it is indeed compaitble with the Inel 6th gen CPUs, so should be good there. The thing is, I think i can only support up to 5 470's with this, so if really wanna be able to go up to 6, I guess i would need the 1000w version but that is unfortunately $45 more, so not sure what I will do there.

EVGA SuperNOVA 850 G2 220-G2-0850-XR 80+ GOLD 850W Fully Modular
http://www.newegg.com/Product/Product.aspx?Item=N82E16817438018&ignorebbr=1

Any feedback on any of these components would be appreciated. Hoping to get my order placed tomorrow if all goes well

Lowes and Home Depot both give discounts for vets.

 I wish they would advertise that, didn't know about that discount.

 8-(

I have that mobo. It works really well with 6 cards

LGA1150 and LGA1151 doesnt affect the hashrate. I would go with whatever board you prefer. Nice choice on the MSI 470s.

http://www.newegg.com/Product/Product.aspx?Item=N82E16813138436&cm_re=biostar_tb85-_-13-138-436-_-Product

This is a recent board released that is suppose to mimic the old probtc 81. Its cheap but always out of stock recently. Lots of Mobos to choose from.

if you can get a rx 470 or 480 for 200 usd it is  a good deal.

4gb for now seems to be the better choice but 8gb could be better as the dag grows.

I am pretty much heat capped for now.

I have 1 more card coming on monday.  It  will be maxed in my garage until weather drops in temps.

My total will be

 4+4+3+2+2+2+2+2+2 = 23 gpus and 9 rigs

I have a 10th rig it is a linux build  It runs 11 compac sticks on cgminers.

I could fit 1 more card in it.  That would give me 24 gpus and 10 rigs it would also allow me to learn linux better.

I am pretty much capped now. 

But I will tweak and I may sell a small turn key build in the market place.

no doubt on power efficiency with 3xx vs 4xx. im comparing same generation tech however. 390 vs 380/370s and 480s vs 470/460s.

gabryrocks, i had seen some 480 vs 470 numbers and they were in line with what you said. wasnt sure however if the 480s had been tweaked with miner software since i had seen those numbers. looks like the answer is no.

I'm doing 23-25 mhs with a 470 at 120 watts of power so let's just say 20 for good numbers
So that's 6watts per mhs
390 is doing 30 mhs at 300 watts of power
That's 10 watts per mhs
I'm paying .13 cents in power per kilowatt
1800 watts in 6 390s 170$ for 180mhs 218$ profit after power bill
720 watts in 6 470s 70$ for 120mhs 210$ profit after power bill
I can run only two 390 rigs in my house so that's 440$ profit at 3600 watts of total power
I can run 5 470 rigs in my house making 1275$ Profit at 3600 watts of total power
Then if you calculate the re-sale of the 470s vs the 390s I come out ahead
I can sale 470s close to 150$ used

So, I get what you're saying about maximizing profit-per-rig. Indeed, if you are able to afford them, rigs with 4-6 cards in general should be more profitable than say 2 or 3 2-cards rigs because for every rig you build, you have a bunch of fixed costs, such as MoBo, PSU, RAM, casing, etc.

Also, your further argument makes a ton of sense as well, at least on the surface. If 390's really do get 50% more hash rate than 380's, and their total cost (including power draw) is less than 50% more than a 380, then certainly your best ROI (all else being equal) would be to load your rig with 390's vs 380's.

I have not researched any of the 300-series cards so can't say much about the other factors, but speaking for the 480 vs 470 issue, it does not seem to be nearly as significant difference in HR as you describe for the 300's.  best I have been able to tell is that a decent average for a 470 is mid 20's untweaked, and maybe pushing 30-ish if tweaked.  But, the 480's only seem to get nominally higher hash rates... maybe a couple Mh and that's it (from what I have read).  AND... here's the other thing to consider... at least for the 400's, the 480's run around $50 higher cost per unit vs 470's.  BUT, in addition, they also pull 150W vs 110W on the 470.  So, they cost 20% more initially and cost 36% more to run... meaning, they would really have to be somewhere in the neighborhood of providing 25-30% more effective HR vs a 470 to make any sense financially, and I don't think they are more than +10% at this point... especially given the fact that the 470s seems to be a lot easier to overclock than the 480s.  And, this is not even considering that you would also need to get a larger PSU to support 6x150 (900) vs 6x110 (660), which would further reduce ROI.

Now, if the 480's were providing the 50% bump over 470s as in your 300 example, it would of course be a much difference story because providing mid-to-high 30's HR would indeed give you a better ROI, even accounting for the extra initial costs and electricity.

question for you folks

i see lots of 470s vs 480, also 380s vs 390s here and there.

now my 2 390s do 30 mhs so 60 mhs on eth. 3 380 at 20 mhs will also do 60 mhs.

so why build with lesser cards when you can use less cards for same hash rate. plus go to 6 cards like 390s at say 180 mhz vs 6 cards, like 380s, for 120 mhs. thats an extra 70 mhz per rig. so less power wasted on mobos which would be what 40-50 watts? EDIT: not to mention more mobos, cpu, memory, drives.

used 390s vs 380s as i have 2 390s and 1 380 so know their rates.

Really cool how you guys are able to build your own platforms for these rigs. It just wouldn't be worth it for me as I don't have that natural aptitude. It would take me so long to even try to build something like that it's just more worthwhile for me to purchase something outright, but I admire that skill-set... just something I've never had.

I finally pulled the trigger on my first 2 GPU's... went with the MSI RX 470 4GB at $200 each.  Actually ended up getting them from Amazon as they had the same price as NewEgg but I have Prime so I will get them quicker through Amazon.

I'm now really leaning towards an open build on 1 of the sub-$100 ASRock Mobo's. What I am grappling with now is whether to go LGA1150 or 1151, socket-wise.  I'm assuming that both RAM and PSU will be relatively similar in cost & performance no matter which I go with (correct me if I'm wrong), so it's really down to which Intel processor I want to go with... between the 5820K & 6800K... (price difference for me is only $21)

I have looked at a few benchmarking sites and there doesn't seem to be a dramatic difference in overall performance.  Wondering if anyone here has experience with either.  I know a lot of people build with the cheapest possible CPU, but since I will be mining a lot of XMR with this rig, my impression is that a higher-end chip should add a decent amount (maybe 500-700) to my hash-rate. Trying to figure out if there would be any real advantage hash-wise to getting the 6800 over the 5820.

Thanks guys ! appreciated  

EDIT: I need to find a deal like that in Canada.

yeah I agree with you rocky

@ Herb

 I know you are in Canada   but  this is a good card cheap price in the USA

and it is short length

https://www.amazon.com/gp/product/B01JM2DF2G/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1

I get 21.9 mh and I like that it is a shorter card.

It suits some of my case builds.

It would be very good for a six card wood build

i paid a little more for the 1x2x36 pieces in the picture to get a more stability.
the first one i used was fragile but it was dirt cheap..
it was easy and fun to build.

I am not Phil but from my personal experience, I prefer the 470. The 480 when tweaking or anything, they're very unstable and inconsistent with hashrates. The 470 was easy to configure and stayed stable. I have both 8gb and 4bg, I found no difference in hashrate but resale value would be higher for 8gb but than again, 4gb is cheaper.

I built of those but it was a bit unstable. The weight of the psu and cards made it work but otherwise, seemed a bit fragile and I was afraid if I moved it around too much, it would fall apart. But they're definitely cheap and fun to build.

Hey Phil, I think you missed my post

Thanks ! 

lowes you can get 6 1x1x36 wood sticks for 10-12$ and make a nice 6 card rig

yes and if you are a veteran you can get a 10% discount.

Nothing wrong  with wood rack   or muscle  racks

http://www.homedepot.com/b/N-5yc1vZccym/Ntt-muscle%20rack?NCNI-5


they don't have wheels  which depending on your builds may or not matter.