My second ZEC + XMR+ ETH thread builds info links thoughts and photos.

[GabryRox]

Thanks Citronick!  I was actually surprised at how easy NHM was to set up... only real problem is getting it past AV but I was finally able to get it running on all 3 of my PCs.  Starting with CPU only, as I am under the impression that NHM GPU is not quite as stable as CPU?  Correct me if I am wrong on this but I may do some experimenting since these returns seem too good to pass up any longer.

This is what I am getting from my 3 CPUs:

- i7-6800k:  22.9 S/s
- i7-2600k:  17.5 S/s
- i5-5200u:    8.3 S/s  (laptop)

So, just shy of 50 S/s combined for a projected monthly income of about $200.  Suffice to say... WAY better than the measly amount of XMR I was getting from CPU mining lol.

So, back to my original question of whether or not it's worth spending an extra $100 to get an i7-4790k (over something like a G3250).  Given the benchmarks above, it would seem that a 4790k should get around 20 S/s. At current rates, that would mean about $80/month from that CPU.  But in order to do a proper ROI, would really need a benchmark of what one of those G-series CPUs can do on ZEC.

Citronick, Phil or others with G-series like G3250, 4400-4500, or even Celeron like G1840... what Sols/s rates have you seen using these CPUs?

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[ps_jb]

That's an interesting question... What do you actually buy with your crypto currency? I've only ever bought more mining equipment via Newegg, or I'm saving it.

Gold here

http://www.jmbullion.com/

[ps_jb]

- i7-6800k:  22.9 S/s

Wow - that is super disappointing! 6 core CPU 450$ and mining less than rx 480

[QuintLeo]

give genoil-zec miner time . I'm glad he released it at least, there is still no stand alone windows version beyond his and if it wasn't for him us windows user would either have to use Linux or go to whatever pool has working miner and some of those still don't work right .

 The flypool version of the nicehash miner is stand-alone on Windows - though if you're looking for AMD support it's not an option.

 It seems to be more stable in mixed GPU/CPU mining if you don't try to use all the cores on the CPU, but that might be 'cause most of my mining rigs are "dedicated to one type of mining" and therefore have other stuff running on them.

[GabryRox]

yeah... depends on your perspective i guess. Compared to the minuscule amount of XMR it was mining before today, I will gladly take ~$100/month for as long as it lasts... but point taken that ROI'ing that CPU at current rates paying full price for it would take 4-5 months. Luckily, I got this one for free so everything is gravy for me in that regard.

Still though, since I can get a 4790k at half price, it's probably going to be worth it for my new rig... depending on what others have gotten from G-series CPUs.

Also, keep in mind that I have not done any kind of tweaking to the 6800k (either over-clocking or even changes settings in NHM), so maybe it is capable of more... the 22.9 was just straight NHM "out of the box" with no changes to anything.

[ps_jb]

Also, keep in mind that I have not done any kind of tweaking to the 6800k (either over-clocking or even changes settings in NHM), so maybe it is capable of more... the 22.9 was just straight NHM "out of the box" with no changes to anything.

Phil will get his desktop tomorrow with i7 6700 CPU. Let's see how it will behave

[toptek]

give genoil-zec miner time . I'm glad he released it at least, there is still no stand alone windows version beyond his and if it wasn't for him us windows user would either have to use Linux or go to whatever pool has working miner and some of those still don't work right .

 The flypool version of the nicehash miner is stand-alone on Windows - though if you're looking for AMD support it's not an option.

 It seems to be more stable in mixed GPU/CPU mining if you don't try to use all the cores on the CPU, but that might be 'cause most of my mining rigs are "dedicated to one type of mining" and therefore have other stuff running on them.

by stand alone i mean works on any pool so to me it's not stand a lone i have tired it. my CPU can't handle it it drags down my 470 beside i have 176 sol without cpu cores if it run 24 /7 im good but it doesn't . due to no real stable windows miner that works any place or don't use fly pool, or use Linux miners,  i hear some of the Linux miners are as bad . I'm getting more gear in time but i have to build up my farm slowly .

[GabryRox]

yes, will be interesting to see what Phil's 6700 will pull... I would guess around the 21-22 mark but we'll see.

Interesting this I noticed after running NHM in my 6800k for a while. I was still mining ETH using CDM and it initially seemed ok.  But after a while I saw that not only my total shares were down about 20-25% but my stale shares were through the roof! Like about 4-5x what they normally are.  So, I decided to stop CDM and enable my 4 470's in NHM.

After doing so, I am now getting about 75 S/s from that machine... deduct the 23 for the CPU and that's about 42 (or 13 per GPU). Certainly not anywhere near what is expected from Claymore's new ZEC GPU miner but also WAY better than what it was making mining ETH, so I will keep that running and hope it stays stable.

Also wanted to add that this rig as it is running now is pulling about 425W.  It was around 650W when running CDM & NHM concurrently, so clearly, the GPUs are not being anywhere nearly fully utilized by NHM.  The other thing I noticed is that the NHM CPU miner piece does not seem to overwhelm any of my PCs like running other memory/CPU intensive apps seem to do.  I would assume this means the CPU is not being fully utilized either but I don't mind this as much since I can now multitask on those PCs when I couldnt effectively before.

[GabryRox]

with i7-6800k.  

First of all - what is the CPU mining speed with i7 6800k?

Second - here is the calculator: https://www.whattomine.com/coins/166-zec-equihash

If you want to mine ZEC with your CPU, make sure it has AVX support. Scroll down to the table labeled "CPUs, related to Intel Core i7-4790K". Anything with AVX (or in the case of newer CPUs, AVX2) will mine much better than a CPU without this support.  The algorithm use to calculate the solutions utilize SSE2, AVX, and AVX2 instructions.  

Edit:
http://www.cpu-world.com/CPUs/Core_i7/Intel-Core%20i7-6700.html

<I originally linked to this by mistake...>
http://www.cpu-world.com/CPUs/Core_i7/Intel-Core%20i7-4790K.html

Thanks Lone! This is great information for sure!  The 4790K iI'm considering does indeed have AVX/AVX2... as do both of my current CPU's (2600k & 6800k), and they are pulling a pretty decent combined 40+ S/s.  

I also checked the 3 G-series CPUs i was considering and none of them have even AVX... only SSE2.  So, I think this was the extra nudge I needed to pull the trigger on that 4790k  

Also, even my laptop's i5-5200u has AVX & AVX2 and it is only getting 8.5 S/s. I know there are other variables to consider but I would assume that those G-series CPUs without AVX would not be getting more than this i5 mobile that I have, so just doing a rough calc using a likely generous estimate of 8 for G-series, I would ROI the extra $100 pretty quickly... in 1-2 months at current rates.

[toptek]

flypool updated to nheqminer 3a whcih is stand a lone or works any place if no one noticed yet . you can use both gpu and CPU with it or i was on nice hash i haven't tired flypools copy yet .


it uses both cpu and gpu like the nicehash only one did a few days ago and works any were .


https://github.com/etherchain-org/nheqminer/releases/tag/0.3a

[generalt]

Anybody else using nanopool and showing no hash for the past hour?  Looks like it just came back up but like the past hour of hashing was at zero for me pool side.

[ps_jb]

Anybody else using nanopool and showing no hash for the past hour?  Looks like it just came back up but like the past hour of hashing was at zero for me pool side.

I switch to flypool back - works much more stable

[generalt]

Anybody else using nanopool and showing no hash for the past hour?  Looks like it just came back up but like the past hour of hashing was at zero for me pool side.

I switch to flypool back - works much more stable

Strange it showed zero for about an hour but everything seems to be back to normal and the hash that was missing is now magically back.  I tried flypool as well and I like them but genoil seems to run better on nanopool.

[philipma1957]

Also, keep in mind that I have not done any kind of tweaking to the 6800k (either over-clocking or even changes settings in NHM), so maybe it is capable of more... the 22.9 was just straight NHM "out of the box" with no changes to anything.

Phil will get his desktop tomorrow with i7 6700 CPU. Let's see how it will behave

came to me a day early  this is the i7-6700t  

and I got a used model mini hp  with an i7-4785t.

the two running just zcash  use 143 watts grand total.

no gpus.  just cpu's  keep in mind this is about 1 hour run time.

the rig 1 is an i5 6500t  short testing seems to make this one out to be the best
the rig 2 is an i3 6100t
the righpi74785  is an i7 4785tmini rig  used from ebay
the righpi76700t is an i7 6700t micro rig new from amazon
the lenovo rig is idle it is a g4400t it gave 3-5h at 26 watts.

the pair of i7's are doing 145 watts and giving me 45h  the psu's are shit oem

[ps_jb]

came to me a day early  this is the i7-6700t  

and I got a used model mini hp  with an i7-4785t.

the two running just zcash  use 143 watts grand total.

no gpus.  just cpu's  keep in mind this is about 1 hour run time.

the rig 1 is an i5 6500t  short testing seems to make this one out to be the best
the rig 2 is an i3 6100t
the righpi74785  is an i7 4785tmini rig  used from ebay
the righpi76700t is an i7 6700t micro rig new from amazon
the lenovo rig is idle it is a g4400t it gave 3-5h at 26 watts.

So i7 6700t works as modded rx 480 - not bad.

Quite a good rig can be build on this CPU and this MB (https://www.amazon.com/dp/B012NH05UW/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&colid=M75TSEWKMETK&coliid=I3H5QJ6MO4PYIZ&psc=1)

In future add 6GPU

[rawbert]

came to me a day early  this is the i7-6700t  

and I got a used model mini hp  with an i7-4785t.

the two running just zcash  use 143 watts grand total.

no gpus.  just cpu's  keep in mind this is about 1 hour run time.

the rig 1 is an i5 6500t  short testing seems to make this one out to be the best
the rig 2 is an i3 6100t
the righpi74785  is an i7 4785tmini rig  used from ebay
the righpi76700t is an i7 6700t micro rig new from amazon
the lenovo rig is idle it is a g4400t it gave 3-5h at 26 watts.

So i7 6700t works as modded rx 480 - not bad.

Quite a good rig can be build on this CPU and this MB (https://www.amazon.com/dp/B012NH05UW/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&colid=M75TSEWKMETK&coliid=I3H5QJ6MO4PYIZ&psc=1)

In future add 6GPU

I've heard from several people that the Z170 chips can't handle more than 4 gpus because of memory lane limitation.

[philipma1957]

came to me a day early  this is the i7-6700t  

and I got a used model mini hp  with an i7-4785t.

the two running just zcash  use 143 watts grand total.

no gpus.  just cpu's  keep in mind this is about 1 hour run time.

the rig 1 is an i5 6500t  short testing seems to make this one out to be the best
the rig 2 is an i3 6100t
the righpi74785  is an i7 4785tmini rig  used from ebay
the righpi76700t is an i7 6700t micro rig new from amazon
the lenovo rig is idle it is a g4400t it gave 3-5h at 26 watts.

So i7 6700t works as modded rx 480 - not bad.

Quite a good rig can be build on this CPU and this MB (https://www.amazon.com/dp/B012NH05UW/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&colid=M75TSEWKMETK&coliid=I3H5QJ6MO4PYIZ&psc=1)

In future add 6GPU

I've heard from several people that the Z170 chips can't handle more than 4 gpus because of memory lane limitation.

but i have four four card z170's  and so far   it looks like bang for the buck is the i5 6500t  used ones all over eBay at 160 to 199 usd  pull the g4400 put in this and my 6500t does 22h for about 199  vs the 6700t does for 299 say 26h


remember the cpu's with the t will save you around 20 watts..

so the biostar z170  on sale at 129
the asrock z170 extreme 3 on sale for 99 + 2 risers so 119

the i5 6500 or the i7 6700

four gpus'  and a nice rig for about 1300  should give you 110h for zec.

lets give it a day of testing.  by the way the
 i7 4785t
i7 4770t
 i7 4790t
i7 4765t

all fit into the h81 boards  use 6 threads with this at the end of zcash     bat file   

 -t 6  it will run you six cards and add  22-25 h

I suspect the
 i5 4570t
i5 4670t
 i5 4690t
i5 4590t
i5 4460t

are all good for upgrading the asrock h81

I do have a 6400t I am dropping in tomorrow  so that all my sixth gen boards will be

i5 or i7

[AriesIV10]

came to me a day early  this is the i7-6700t  

and I got a used model mini hp  with an i7-4785t.

the two running just zcash  use 143 watts grand total.

no gpus.  just cpu's  keep in mind this is about 1 hour run time.

the rig 1 is an i5 6500t  short testing seems to make this one out to be the best
the rig 2 is an i3 6100t
the righpi74785  is an i7 4785tmini rig  used from ebay
the righpi76700t is an i7 6700t micro rig new from amazon
the lenovo rig is idle it is a g4400t it gave 3-5h at 26 watts.

So i7 6700t works as modded rx 480 - not bad.

Quite a good rig can be build on this CPU and this MB (https://www.amazon.com/dp/B012NH05UW/ref=wl_it_dp_o_pC_nS_ttl?_encoding=UTF8&colid=M75TSEWKMETK&coliid=I3H5QJ6MO4PYIZ&psc=1)

In future add 6GPU

I've heard from several people that the Z170 chips can't handle more than 4 gpus because of memory lane limitation.

Stay away from the Z170's.  They can only run 4 gpus.  The motherboard that you want is the MSI Z97 Gaming 5 or https://amzn.com/B00K8KPXUO on Amazon.  I can always get 6 or 7 gpus on my RIGs.  I just got this rig put together.  This will give me the capability of stacking and also air control for venting out the back and directing it into my furnace during the winter or outside in the summer.

Here is the pics.

[arielbit]

@ AriesIV10

i think your two case fans (beside the motherboard) should direct air the other way, from external air -> cpu-board -> gpus.. besides the hot air from the cards will likely be sucked in by the PSU too.

[ps_jb]

Stay away from the Z170's.  They can only run 4 gpus.  The motherboard that you want is the MSI Z97 Gaming 5 or https://amzn.com/B00K8KPXUO on Amazon.  I can always get 6 or 7 gpus on my RIGs.  I just got this rig put together.  This will give me the capability of stacking and also air control for venting out the back and directing it into my furnace during the winter or outside in the summer.

Your rig looks super cool! Thank you for advice on MB. Which CPU do you use - high or low end?