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i want to build a cup minner that can give me at least 2$ a day pleas he and recommend me a good cup

you will only make a profit if you do not pay for the energy, today neither gpu yields 2 $ day.

So  is it a CPU miner you want or a GPU miner?

When you say CPU miner I suppose you mean a miner software right? And what do you mean build? Build from scratch? There are plenty of CPU miners already available, you don't have to build one. By the way, correct me if I'm wrong but these days  I don't think you can earn $2 a day by using your CPU only. You will have to include GPU mining as well. Or you could mine a coin that you think will be profitable in the future.

I think OP wants daily profit as he said above "that can give me at least 2$ a day"

Hey OP
(at least 2$ a day) To reach $2 a day even hard with CPU mining, if it what you mean with CPU miner. Moreover when you built from scratch, maybe you need also thinking about cost return. GPU mining may be more reasonable, but it will cost you more.

guys, don't get too technical....

in English and for the computer/technical illiterate

CPU = Rig....(yes...entire rig)

Okay:

• Build a Core2 Quad 2.666 GHz 12M (older version) PC with minimum specs. There are tons of super cheap secondhand units of these in the market, cheaper than an i7 but the performance for Criptonight V7 didn't have a very high gap.
  
• Download/install a (non-malware or scam) cryptonight miner with good number of userbase like: JCE Miner Cryptonight/forks (https://bitcointalk.org/index.php?topic=3281187.0)
  
• Select a pool that mines the coin of your choice (either Monero[XMR] or Electroneum [ETN])
  
• Point your miner to the pool (check the pool's guide, some has an internal wallet, some haven't)
  
• And this is the most important part: plug your computer to your neighbors's garage without their consent in order to profit. (just kidding)

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If you're dead serious on "profiting" $2 a day, just install an Electroneum miner on your mobile phone and leave the internet connection and the app open in the background.
It will "generate" ETNs for you as long as your phone isn't turned off, it's not even mining at all (if they still didn't updated it).
That's it, you didn't even need to buy anything.

Why do not you use bitcoin could mining?

i am already minning ETN on my phones all my family members have this app and i am not selling them

i think if you use ETN miner on your mobile that will kill it soon

the best way for you mining buy 4 gpu ... that will give now about 2$

if the market be good .. there will give you more than 7$

2$ a day on cpu. Hmm, I think you are at least 2 years to late for that. MAybe, if you have some servers laying around, but that would consume much more power, than you will be making..

The ETN Miner on phones is just a simulation. No harm done to your phone.

gpu is quite expensive i am looking for cpu minner and i need some hardware details

best CPU coin is BIBLEPAY ..for mining BBP you getting next 3 coins=byteball and neumannium and dcc  ;)

One of the greatest CPU built over all time is in my humble opinion as an IT certified guy is the AMD  Ryzen 2 Threadripper 2990wX. It has a 32 cores and it can make that 2 dollars daily that you are asking if you don't pay for the electricity.

Still it is one of the most expensive CPU-s out there so maybe these two don't fit well together. You should stay with a 8 core new CPU as it is more budget friendly and if not 2 at least can that 1 dollar for you daily.

If you already have your CPU and are looking for a CPU mining software many of the altcoins that are mined via CPU has a built in software for mining like the BCN -Bytecoin does.

nope  the 1920x threadripper can be had for about 450

the 2990wx thread ripper is about 1500


one does 900 hash at 130 watts

the 2990wx does 1800 hash at 220 watts

link for the 1920x


https://www.ebay.com/itm/AMD-CPU-YD192XA8AEWOF-AMD-Ryzen-Threadripper-1920X-sTR4-12C-24T-180W-38MB-Retail/162678888151?

https://www.ebay.com/itm/AMD-Ryzen-Threadripper-1920X-12-core-24-thread-Desktop-Processor-YD192XA8AEWOF/302424715335?

real sellers

At $2 per day it is likely he will never recover his hardware investment unless he has access to free electricity.  To clear $2 a day he needs something pretty substantial.  At that point all you have to do is go to a mining profitability calculator and plug in your variables and go from there.  

I think OP has absolutely no idea what he is doing.
Please do more research.

if he has free power and makes the right rig  he could do okay.

but you are correct no free power = not very good

here are some used rx 580's

https://www.ebay.com/itm/SAPPHIRE-AMD-Radeon-RX-580-NITRO-4gb-11265-07-20G/263941946731?

130 each  buy 4 for 520 cheap power they should make what he wants mining xmr

i dont think it would be worth it you would need to mine at least 3 months at 2 dollars a day just to pay for a gpu to mine that much

One problem you will also find with the Threadripper CPUs is that you'll also have to get an X399 CPU to run them, and those are currently pretty expensive- the cheapest ones I can find on eBay are used and/or open box, and they're going for $270-300. I'd rather just go for a few CPUs and a cheaper motherboard, perhaps running a budget Skylake CPU to control the GPUs. Either way, you're not going to make a lot after electrical costs if you don't have free electricity, and it is always possible to just buy and hold crypto. It isn't a terrible idea, especially when coin prices are as low as they are right now.

I still don't understand until now why some people want to mine only with the CPU, whether they can't read some info even with the GPU it's hard to make a profit. Except if want to know about the mining process, I think isn't a problem.

you need to make profit. when you got 2$ /day but have to pay 5$ for energy. its a bad idea