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Topic: Building Cheap Miners : My "Secret" - page 36. (Read 60249 times)

hero member
Activity: 714
Merit: 512
January 15, 2018, 10:12:41 AM
Sundownz, my wallet would like to thank you for the more than $5k I've spent in the last 24 hours to start my own setup.  In many ways I feel like a big dummy.  Being an IT hardware guy all my life this is right up my alley and really, mining feels no different than running prime95 and submitting results... lol  I should have started this years ago when I was in my 5k sq ft automotive shop and had plenty of power.  I'd be a millionaire by now if I had.  I'm not a trader.  I'm too emotional so I do stupid things with the little bit I've tried.  However, mining is something tangible and I can definitely wrap my head around getting paid for work.

I dipped my toes in the mining pool finally this week and once I realized that with the hardware I already had (1080, 780 and a 7950) I was going to average $300/m... Well I went a little crazy buying things.  I've got 9 1060s and 3 1080s on the way! lol  

I bought a DL580 G7 w/ 4 cpus to setup as my first rack.  I'm comfortable in Linux so I figured I'd try to get the one machine up and off the ground to start.  It coming with 4x1200w PSU's made me feel it was good value for the $.  I want to CPU mine and also run 11 GPUs through it.

I've got lots of space and currently 400A of service.  If all goes well I'm thinking of burying containers in the ground and using geothermal cooling loops to keep the hardware cool as I'm in TX and it gets rather hot down here.

For the remote access stuff, Google's Chrome Remote Desktop is basically Windows RDP with a FAR nicer interface.  It lists all the PCs and tells you which ones are up or down and even last online time if a box goes down.  I was a hardcore Windows RDP user and I switched to the Chrome version.  All you have to do is run the Chrome RDP installer while you are logged into Chrome and then from anywhere in the world that PC would be accessible when you are logged into Chrome.

Thanks for all of your posts.  A lot of people don't want to share their secrets or how they are doing things so what you are doing really is helping out the average Joe!


I am glad my post was able to help you -- and thanks for sharing more info =)
hero member
Activity: 714
Merit: 512
January 15, 2018, 10:11:48 AM
So...Sundownz, being a business owner, are you able to use this equipment as a tax write-off? I am not sure where cryptocurrency stands in all of this.

I do my taxes on mining separately.

But, yes, since I am doing this for profit the equipment is a deduction... my CPA is working it all out on whether I need to depreciate it over time, though, so I may not get to take 100% of it as a write-off in the first year.
hero member
Activity: 714
Merit: 512
January 15, 2018, 10:10:53 AM
What hashrate are you guys getting on the X5660? I'm curious as I am just getting started with Intense Coins on XMRIG and am just looking for a sanity check that I have things running correctly.

About 230 H/S using XMRig software.
hero member
Activity: 714
Merit: 512
January 15, 2018, 10:09:50 AM
You also tested 4gpu on z400, also stable? You are running 3 because of psu?

For GTX-1060 I do use four GPUs -- no problem.

I have just ordered two units of the build you have done with z400. Thank you for the information.  Grin my cost for each unit was $1178 excluding x5660 with 4 1060 gpu running. Once up and running I plan on adding after the learning curve.

What do you recommend for wallet in terms of your long term holds? Hardware based offline ? any recommendations ?

thanks
Have a great 2018!

I actually keep my BTC on Coinbase -- but for other coins I use the official software QT wallets and back up my wallet file in several locations to hold long term.
hero member
Activity: 714
Merit: 512
January 15, 2018, 10:08:22 AM
Been on vacation since Dec 22nd.

No issues related to the Z400s at all.

I did have one system go down due to either a bad GPU or PSU -- which I will troubleshoot when I get home. The Z400 will produce a beep code if something is bad (so I have yet to see any failure of PSU, GPU, or Riser cause a cascade and take out any other hardware) -- I simply had one of my employees shut that one system down and unplug it in the meantime.

Cannot complain about these things at all... ROCK SOLID.

Ordered 12 more for the 5th rack that I'll start later this month =)

nice info, hope you had a good vacay. 
Have you tried using pci extenders on the z400 to expand to say 6 or 8 cards?

Thanks! I actually had another trip right after the vacation trip (business this time) -- Z400s solid again!

I have not yet tried the PCI-E expansion cards... but I did buy two of them to experiment with.

If I can get more than four cards running I will advise in this thread.
newbie
Activity: 182
Merit: 0
January 15, 2018, 08:55:20 AM

i7's that have Iris are
5950HQ
5850HQ
5750HQ
5755C
5775R

i5's that have Iris are
5675C
5675R
5575R
That's the kind of answers I love, many thanks!
member
Activity: 142
Merit: 11
January 15, 2018, 07:06:07 AM
?
newbie
Activity: 39
Merit: 0
January 15, 2018, 04:34:13 AM
我觉的这是一个非常不错的想法,但目前我应该不会这么做
full member
Activity: 139
Merit: 100
January 15, 2018, 04:19:05 AM
Ohh, i thought E7-4870 was top of the line? Cant see a better one in this list: https://ark.intel.com/products/series/59139/Intel-Xeon-Processor-E7-Family - Care to share your knowledge? Smiley

Well now I feel like a dummy.  I saw E7-8870s in the list before and thought it would be more of a boost than just double the accessible RAM which won't do us any good.   Cheesy  8870s can address 4.1TB while the lowly 4870 can only address 2.05TB  I don't think that will give us the kind of performance boost we are looking for.  I guess next time I'll make sure to check the specs instead of just going... Ooooh bigger numbers, has to be faster right? Cheesy

Found 4 8837s for 35 shipped, they are on the way... LOL

Cache is the most important factor here, mining cryptonight with xmr-stak. The configuration of the miner should be based on the amount of cpu cahce available. Each miner thread needs 2Mb of L3 cpu cache.

For the E7 family i made this formula to estimate cryptonight performance:

13 * corespeed in ghz * (amount of cache per cpu / 2 ) * number of physical cpu's * = Totalt H/s running one thread per 2MB cache

For me:

13 * 2,66 * (24/2) * 4 ~ 1650 H/s
jr. member
Activity: 176
Merit: 1
January 15, 2018, 01:20:15 AM
Ohh, i thought E7-4870 was top of the line? Cant see a better one in this list: https://ark.intel.com/products/series/59139/Intel-Xeon-Processor-E7-Family - Care to share your knowledge? Smiley

Well now I feel like a dummy.  I saw E7-8870s in the list before and thought it would be more of a boost than just double the accessible RAM which won't do us any good.   Cheesy  8870s can address 4.1TB while the lowly 4870 can only address 2.05TB  I don't think that will give us the kind of performance boost we are looking for.  I guess next time I'll make sure to check the specs instead of just going... Ooooh bigger numbers, has to be faster right? Cheesy

Found 4 8837s for 35 shipped, they are on the way... LOL


The only difference between the 88 and 48 is that the 88 can fit into a motherboard with 7 other processors and the 48 is limited to a motherboard with a max of 4. Though in all of my searching I have yet to see a 8 E7 chip server being sold online.

Because the DL580's are only 4.  You have to move to a DL980 to find the 8 chip unit.  At least that's what I figured out today.  However the DL980 units are going for about $2k a piece...
full member
Activity: 1179
Merit: 131
January 15, 2018, 12:21:14 AM
Thanks! Is there something in the product number that says "Iris Pro thingy"?

In the product description, yes.  Look at the link the nsummy posted, it clearly states the mini pc comes with an Iris Pro graphics.  If it states Iris Pro you are good to go.  If it states Intel HD graphics, you would not be.

Correct, and if you want to know about another "secret", I read about these processors and searched high and low for them, its bizarre, like they were never sold in any computer.  I think the Iris was mostly sold with macbook pros, so anything you search for will likely lead to that.  How I found this particular model though:  After wasting hours on ebay, I went to newegg and went to this section:  Home -> Components -> Barebone / Mini Computers ->  Mini-PC Barebone.  On the left there is a filter to select what type of GPU you want.  I just selected all of the Iris GPUS and got lucky.  I think this address will take you there:  https://www.newegg.com/Product/ProductList.aspx?Submit=ENE&IsNodeId=1&N=100008345%20601188532%20601190202%20601290807%20601290808  There is one for $360 but its only a dual core.  I think another trick to this is that it also has to be a quad core with hyper threading so that it can run 8 threads.
full member
Activity: 1179
Merit: 131
January 15, 2018, 12:14:19 AM
Ohh, i thought E7-4870 was top of the line? Cant see a better one in this list: https://ark.intel.com/products/series/59139/Intel-Xeon-Processor-E7-Family - Care to share your knowledge? Smiley

Well now I feel like a dummy.  I saw E7-8870s in the list before and thought it would be more of a boost than just double the accessible RAM which won't do us any good.   Cheesy  8870s can address 4.1TB while the lowly 4870 can only address 2.05TB  I don't think that will give us the kind of performance boost we are looking for.  I guess next time I'll make sure to check the specs instead of just going... Ooooh bigger numbers, has to be faster right? Cheesy

Found 4 8837s for 35 shipped, they are on the way... LOL


The only difference between the 88 and 48 is that the 88 can fit into a motherboard with 7 other processors and the 48 is limited to a motherboard with a max of 4. Though in all of my searching I have yet to see a 8 E7 chip server being sold online.
jr. member
Activity: 176
Merit: 1
January 14, 2018, 08:01:25 PM
Ohh, i thought E7-4870 was top of the line? Cant see a better one in this list: https://ark.intel.com/products/series/59139/Intel-Xeon-Processor-E7-Family - Care to share your knowledge? Smiley

Well now I feel like a dummy.  I saw E7-8870s in the list before and thought it would be more of a boost than just double the accessible RAM which won't do us any good.   Cheesy  8870s can address 4.1TB while the lowly 4870 can only address 2.05TB  I don't think that will give us the kind of performance boost we are looking for.  I guess next time I'll make sure to check the specs instead of just going... Ooooh bigger numbers, has to be faster right? Cheesy

Found 4 8837s for 35 shipped, they are on the way... LOL
full member
Activity: 350
Merit: 100
January 14, 2018, 06:56:23 PM

i7's that have Iris are
5950HQ
5850HQ
5750HQ
5755C
5775R

i5's that have Iris are
5675C
5675R
5575R
jr. member
Activity: 176
Merit: 1
January 14, 2018, 06:50:17 PM
Thanks! Is there something in the product number that says "Iris Pro thingy"?

In the product description, yes.  Look at the link the nsummy posted, it clearly states the mini pc comes with an Iris Pro graphics.  If it states Iris Pro you are good to go.  If it states Intel HD graphics, you would not be.
newbie
Activity: 182
Merit: 0
full member
Activity: 139
Merit: 100
January 14, 2018, 06:34:20 PM
Mine was shipped with E7-4807's cpus, but i found a set of 4 pcs E7-8837 dirt cheap (10$/each!) so i couldnt resist, gonna try to do some cryptonight mining aswell in the background. Should pull around 900-950 H/s which currently makess 170-180$/month.

Thanks i appreciate all info, i will keep you posted aswell.

There are even better E7 CPUs that can go in that aren't listed in the spec sheet but you have to make sure you have the proper revision main I/O board.  I've already been looking into replacements since mine come with X7542's.

Ohh, i thought E7-4870 was top of the line? Cant see a better one in this list: https://ark.intel.com/products/series/59139/Intel-Xeon-Processor-E7-Family - Care to share your knowledge? Smiley
jr. member
Activity: 176
Merit: 1
January 14, 2018, 06:23:57 PM
Mine was shipped with E7-4807's cpus, but i found a set of 4 pcs E7-8837 dirt cheap (10$/each!) so i couldnt resist, gonna try to do some cryptonight mining aswell in the background. Should pull around 900-950 H/s which currently makess 170-180$/month.

Thanks i appreciate all info, i will keep you posted aswell.

There are even better E7 CPUs that can go in that aren't listed in the spec sheet but you have to make sure you have the proper revision main I/O board.  I've already been looking into replacements since mine come with X7542's.
full member
Activity: 139
Merit: 100
January 14, 2018, 05:52:08 PM
Spinx, sounds like we are barking up the same tree except I'll be using Nvidia cards.  You have better CPUs than mine though.

Hopefully you get things worked out.  My G7 is slated for delivery this coming Wed along w/ most of the cards so I'll report back sometime Thursday probably as to my success or failure.

Mine was shipped with E7-4807's cpus, but i found a set of 4 pcs E7-8837 dirt cheap (10$/each!) so i couldnt resist, gonna try to do some cryptonight mining aswell in the background. Should pull around 900-950 H/s which currently makess 170-180$/month.

Thanks i appreciate all info, i will keep you posted aswell.
jr. member
Activity: 176
Merit: 1
January 14, 2018, 05:36:20 PM
Spinx, sounds like we are barking up the same tree except I'll be using Nvidia cards.  You have better CPUs than mine though.

Hopefully you get things worked out.  My G7 is slated for delivery this coming Wed along w/ most of the cards so I'll report back sometime Thursday probably as to my success or failure.
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