Tried
to clean up this thread just a bit.
Basically the expensive build is based on a free i7 6800k
http://www.newegg.com/Product/Product.aspx?Item=N82E16819117649&cm_re=intel_i7_6800k-_-19-117-649-_-ProductSo it is not a normal or recommended way to go for anyone else unless you get a free i7 6800k
It you do please get me one too
I quoted all the deletes and combined below.
To me two builds make sense for most cases.
the four card biostar z170a with a g4400 cpu
or the six card riser build with the asrock mobo.
or if you really game a decent 2 card build that lets you game then mine when you are sleeping
Please educate me with this:
Why are so many people buying such high end high $$$ components to build mining rigs? I have watched youtube videos, and read guide after guide and read forums and I see people building 5 and 6 GPU mining rigs for ~200 mark ( PSU, mobo, ram, cpu). Here people are buying a MOBO for 180 bucks. Seems absolutely insane to me.
If you can build the "core computer" for $200 bucks and run 5 cards are 29 MHs each, why would you spend $500 to build the same "core computer" that will do the same thing but cost 2.5 as much?
Am I missing something here? From my research price of the mobo, speed of CPU, etc etc has ZERO effect on the hashing speed and stability of the miner.
Again, please correct me if I am wrong.
Please educate me with this:
Why are so many people buying such high end high $$$ components to build mining rigs? I have watched youtube videos, and read guide after guide and read forums and I see people building 5 and 6 GPU mining rigs for ~200 mark ( PSU, mobo, ram, cpu). Here people are buying a MOBO for 180 bucks. Seems absolutely insane to me.
If you can build the "core computer" for $200 bucks and run 5 cards are 29 MHs each, why would you spend $500 to build the same "core computer" that will do the same thing but cost 2.5 as much?
Am I missing something here? From my research price of the mobo, speed of CPU, etc etc has ZERO effect on the hashing speed and stability of the miner.
Again, please correct me if I am wrong.
First off, I'm like you, I think lower overhead, the better.
However, I can think of at least two things, there may be more. First, you may be buying more quality components and experience less down time in the long run. Cheaper equipment may break down if you run it 24/7 for months on end. A "gold-plated" board may be more up to the task.
Second is resale value. If you want to package up a board, CPU case, and 2 or 3 cards and sell it to a gamer when you're done with it, you may have a better chance of getting more as a turn-key package, rather than selling parts one at a time. I'll roll the dice and sell my GPUs one at at time.
I'd be interested in others' opinions on this, since I may be thinking about this R.O.I.-thing all wrong!
Please educate me with this:
Why are so many people buying such high end high $$$ components to build mining rigs? I have watched youtube videos, and read guide after guide and read forums and I see people building 5 and 6 GPU mining rigs for ~200 mark ( PSU, mobo, ram, cpu). Here people are buying a MOBO for 180 bucks. Seems absolutely insane to me.
If you can build the "core computer" for $200 bucks and run 5 cards are 29 MHs each, why would you spend $500 to build the same "core computer" that will do the same thing but cost 2.5 as much?
Am I missing something here? From my research price of the mobo, speed of CPU, etc etc has ZERO effect on the hashing speed and stability of the miner.
Again, please correct me if I am wrong.
First off, I'm like you, I think lower overhead, the better.
However, I can think of at least two things, there may be more. First, you may be buying more quality components and experience less down time in the long run. Cheaper equipment may break down if you run it 24/7 for months on end. A "gold-plated" board may be more up to the task.
Second is resale value. If you want to package up a board, CPU case, and 2 or 3 cards and sell it to a gamer when you're done with it, you may have a better chance of getting more as a turn-key package, rather than selling parts one at a time. I'll roll the dice and sell my GPUs one at at time.
I'd be interested in others' opinions on this, since I may be thinking about this R.O.I.-thing all wrong!
I am with you both, not sure the reason for such a high priced mobo as the h97 and the biostar can be had for under $90.
http://www.newegg.com/Product/Product.aspx?Item=N82E16813138436&cm_re=biostar_tb85-_-13-138-436-_-ProductThe new tb85 is in stock right for cheap.
As for resale value, mobos are a bit hard to resell as opposed to GPUs. I know Phil uses a board so he can fit 4 gpus without using risers, so it's more a convenient factor plus, the little extra he pays for the mobo is cheaper than paying for 3 risers. For a four card build, Phil has the right idea. For a 5-6 gpu build I would recommend the TB85.
Generally, I would agree with those suggesting cheap builds because in most cases, your ROI would be higher and break-even point sooner. However, in my case, there are few mitigating factors that are making me consider the 2011-v3 MoBos:
1- I am possibly getting a free i7-6800K from a colleague. I should know for sure in the next few days if this is going to happen or not. If it does, the combined cost of a free CPU & 2011-v3 MoBo would be about $170, which would be roughly equivalent to outright buying a g4400 CPU & LGA-1151 Mobo, but with a much more powerful rig, although granted, not a lot of that power can be used for most mining.
2- I am primarily planning to mine XMR and ETH (probably about a 60/40 split). While I understand that CPUs are useless in mining ETH, they are still at least decent at mining XMR. My ancient 2600k has been pulling 100-140 M/h on XMR, I have seen similar 3rd gen's benchmarked at 300-400, so reasonably thinking that a 6th gen 6800k could provide 500-600 H/s on XMR. Even if its on the low end of that, it still makes sense to me as what is considerably more than the ~120 H/s that a g4400 could do on XMR. Now, I if I had to pay full price for the 6800k, it probably wouldn't make any sense to go that route, but if not, this CPU could provide 2/3 to 3/4 of the HR of an additional GPU.
3- As a total noob, I want to get a MoBo that has at least 2-3 PCIe x16 slots so I can at least push out using risers. I know myself and and technical difficulties that I run into will likely frustrate me to the point of procrastination (losing money, mining wise), so I would really like not to have to deal with risers at the get-go. But, if I can get my rig up and running with 2-3 470's right away and validate expectations, I can then take the extra step of adding additional 1-2 GPU with risers.
4- Finally, if all of this just doesn't work out for me and I decide to dismantle this mining rig, I can not only sell the extra 470's to recoup costs, but I can also re-purpose the higher-end CPU and MoBo and use it as a base to build my new personal system, which needs to happen in the next year or so anyway.
With all that said, if this free 6800 falls through, I may indeed just go with the g4400 and cheaper MoBo. And, maybe even if I build with a free 6800... if it's not giving me close to what I expect on XMR but is otherwise profitable on the GPU side, I can just build a cheaper base, transfer the GPU's to it and use the higher end components for my personal PC build.
One last possible concern with this ASRock X99 board... in a Tom's hardware review, the following was said:
"You’ve probably noticed that the X99 Extreme4 has four PCIe x16 slots, but that one of these wasn’t mentioned in the introduction. That’s because the second PCIe x16 slot wired as a two-lane PCIe 2.0 link to the motherboard’s PCH. An included three-way SLI bridge bypasses it entirely to connect the first, third, and fourth x16-length slots, since those are the X99 Extreme4’s only SLI-compliant interfaces."
http://www.tomshardware.com/reviews/intel-x99-haswell-e-overclocking,3934-2.htmlThe wording seems a bit off but maybe it's just because I am still learning this stuff. I know that for mining, we do NOT want either SLI or Cross-fire enabled. This article at least makes it SOUND as if the 1st, 3rd and 4th PICe x16 slots are already SLI bridged. Does this mean that the SLI functionality is essentially hard-wired into this board and would therefore not be good for mining? Or, is this just a capability that cab be enabled if desired?
he is getting a 400 cpu for free so spending 170 for a mobo means just that 170 for mobo-cpu zero for risers
while the six card boards is 90 + 45 + 50 = 185
and he has a very valuable resale setup.
