Hello everybody
Plot twist: we have free electricity so we don't have to look at power usage
Budget: 450€ (500$)
Available stuff: Notebook - CPU - Intel Core i5-6200U 2.30Ghz, GPU - amd Radeon r5 m330, Intel hd graphics 520, plug, 50cmx50cmx50cm space
wi-fi
I need your help to find the most profitable solutions
1. Buy scrypt miners - a) 3x Zeus Thunder X6 NX Gen for 450$ together = 63MH/s - possible earnings 4$ per day
Problems - The seller is located in USA and we are in Czech Republic, The 3 miners are each 20lbs so the postage fees can exceed 300$
b) SilverFish-24M-270W - 268$ - free shipping from china
Problems - low hashrate vs price
- I don't know if we can really trust sellers on ebay
2. Buy Antminer - a) Antminer s7 - 5 068 Gh/s for 420€, no postage fees, can earn about 3.6$ per day
problems - the fans are 62decibels which is unfortunately not acceptable
b) the same guy offers 7x antminer s1 each for 15€ so the invest would be only 105€ but the hashrate is only 1260 Gh/s - earnings 0.9$ per day
- they not so loud - around 20db, but I don't know how it would be with powering all these 7 miners and storaging
3. Build PC there are lot of options and wide range of different Gpu
Some questions -
1. Is it true that you need at least 2gb graphic card to mine eth?
2. It's really hard to calculate gpu hashrate on different algorhytms but we use this type of calculation on website -
https://badmofo.github.io/ethereum-mining-calculator/ I chose for example AMD HD 7970 - I can see it has 20.1 MH/s for ethereum mining
then I check the graphic card on
https://litecoin.info/Mining_hardware_comparison I can see there it has around 640kh/S ( profit per day 1.14$) so now I can use this calculation because not all the cards are on the list on the first website,for example one guy is seling Radeon R7950 Twin Frozr 3GD5/OC 3GB for 92€, Which has around 700 khs according to litecoin hardware comparison website if I use calculations before, this card should have around 22 mhs - (1.25$ per day) - can I use this type of calculations?
3. How can I figure out the hash rate for scrypt and cryptonight etc.?
My frined was doing little research about the best graphic cards hashrate/price and found out that AMD Radeon R9 280X would be the best option right now - if you have some advice or experience please comment
Then about the case - is it true that we can't just put the best graphic cards to old pc with old cpu and small ram, what are the minimum parametres for cpu?
There is also question about the graphic card slots...
I found something like this for 150€
https://pc.bazos.sk/inzerat/66159435/Predam-pc.php -
Amd Phenom II X4 940 3,2ghz
4GB ram
1,5TB HDD
Ati Radeon HD6950 2GB - the graphic card seems pretty good I've found it on comparison and it has around 400-450 khs (0.8-0.9$ per day (seems too good to me))
but I don't know how many slots are there...
Last question - Do we need some external cooling for all the graphic cards inside the case? - If yes what is the best and cheapest solutions
So there are all the options we have, as I said we don't want to go over our budget 500$ for this, Tell us everything about what would you do in our situation, every advice... Hope we will mine soon
Thank you very much for your help