Anleitung: Ethereum Mining -

Used Hardware and warranty

About the time video cards were becoming not competitive doing Bitcoin mining, Ebay filled up with cheap second hand cards as the miners unloaded their rigs to recover some of their investment and contemplate their ASIC future. These cards had been running flatout for months and were considered pretty sketchy hardware, so they went cheap. I went looking for a bargain, and bought a 280X for $150.
Thing was, I bought an MSI, knowing that MSI supports warranty from the day of manufacture, and doesn't care who the owner was/is. Months later, running PVP WOW sessions at max quality it started bluescreening. I could run it fine if I dialed the quality back a step and frankly I couldn't tell the difference but it wasn't supposed to do that. No doubt it's prior life getting flogged as a Bitcoin slave hardened up some thermal interfaces. After verifying several times that I could induce a bluescreen at will just pushing up the settings and jumping into a 40 man PVP fight - off it went to the warranty doctor.
Today I got a new one in the mail. :o) MSI is a great company.
submitted by Antiquus to hardware [link] [comments]

SHA256 with ASIC compared to Scrypt with GPU

this is the very basic for latecomer always doesn't understand.
i keep seeing they insist on mining bitcoin with SHA256 ASIC, i know its fun, its fun to see you generate money out of thin air, but thats not how we do it today because SHA256 ASIC era are gone, its very expensive playing field right now, if you insist want to mine some bitcoin, you should start mining using GPU! why?
lets calculate profitability of your SHA256 ASIC, and lets make it really easy by assuming some factor :
now go here you will see you will get 1 BTC in about 75 days right now (see the 2nd column from the rightmost), this value is not correct since it does not account for difficulty increase within 75 days, bitcoin difficulty are increasing about 35% in 2 weeks, thats about 70% per month, you will see the correct calculation is here which you will never get 1BTC within a year, and after 6 months your ASIC doesn't generate bitcoin anymore
now lets compare it to GPU miner for Scrypt mining, which i use realistic assumption here
now go here, you will see that on the most profitable coin (first row) you will get 1 bitcoin for about 30 days (its 45 days faster than SHA256 ASIC), how about difficulty increase within these period, this factor is not as scary as bitcoin, lets see difficulty chart for LTC here, you will see that the diff is up and down, by calculating the data history for 1 year, you will get that LTC difficulty increase is about 3% per month on average (this is 25x smaller than bitcoin difficulty change rate), so coinwarz data is not too much way off here by not take into account of difficulty increase
note: this calculation are made in worst case scenario for GPU compared to best case scenario for bitcoin ASIC
thats just prediction and calculation, things will go wrong right? lets see the report from my own GPU mining rigs here, see 2nd sheet (RIG1-Report), this is my earning report day to day in BTC (already running since december 2013), my rigs cost about 2000$ (this is 2nd hand 6x AMD 7970 for 4.2MH/s) and will ROI within 50 days from start if my calculation are correct
submitted by uraymeiviar to BitcoinMining [link] [comments]

[CANADA-BC] [H] Crypto Currency Mining Enclosure and hardware FULL setup sale [W] $ or Bitcoin

I own a crypto currency mining investment company and I'm selling off the current hardware setup. It has been in use since mid-March of 2014. I've had a series of unfortunate events occur in my personal life that require me to sell off my business's hardware and other personal items.
This is for a firm priced sale, I am looking for a buyer that is either wanting to get into the mining business and wants a GPU based setup that can tackle all the new algorithms VS ASIC based setups that go obsolete within months and have no resale value. Or a buyer that wants to expand their mining farm or mining business and would love a plug-n-play type setup where the only thing they are required to do is have one power feed wired into their warehouse or home panel. This would be for local pickup only most likely. It will require the buyer to have a truck or to rent a u-haul type of moving truck. The system is roughly 60 inches tall by 95 inches long by 24 inches wide, not sure on its weight but moveable if the cards are removed(the cards are designed to be plug-n-play as well, no screws, just pop out pop in.) and runs at 240v for PC hardware and 120v for fans/misc regular appliance plugins(routers/switches etc).
The enclosure houses 8 systems which consist of 46 R9 280x video cards (it has room for expansion), has its own built in surge protection system to withstand lightning and other outside-the-enclosure based surges, whole system runs at 240v for best efficiency, has a 100amp breaker panel which is attached to the enclosure for maximum expansion.
The enclosure has 6x20 inch box fans which provide the 24/7 constant air flow for the video cards. I have two other 20 inch box fans that are for in and out airflow for fresh air circulation. All video cards are easy to access and can easily add or remove cards to/from the unit. I built the enclosure design in-house.
Serious inquiries ONLY, I have priced this as fair market price for used hardware among the enclosure costs which include the power panel, surge protection, cable runs, professional electrical hardware/electrician fees etc. This is a full plug and play type enclosure setup for any mining farm out there. Originally built for $33000~, I'm strictly selling it at a fair hardware priced value with cutting out a lot of the fee's that you would have to pay for an electrician to wire up your own custom enclosure and the electrical hardware. Cash or Bitcoins only.
Asking $15000 Canadian firm. Also I am located around Vancouver, British Columbia, Canada.
It consists of the following hardware:
-40x Powercolor Radeon R9 280X OC 1030MHZ 3GB 6.0GBPS GDDR5 DVI HDMI 2XMINIDP PCI-E Video Card
-6x ASUS Radeon R9 280X OC 1070MHZ 3GB 6.4GHZ GDDR5 2xDVI HDMI DisplayPort PCI-E Video Card [R9280X-DC2T-3GD5]
-5x H81 Pro BTC
-2x Gigabyte 990FXA-UD3 AMD990FX ATX AM3+ DDR3 4PCI-E16 2PCI-E1 1PCI SLI SATA3 USB3.0 Motherboard [GA-990FXA-UD3]
-1x asrock 970 Extreme3
Power Supplies(All PLATINUM RATED for best efficiency and running at 240v):
-14x Corsair AX1200I 1200W Digital ATX 12V 80 Plus Platinum Modular Power Supply 140mm Fan
-1x Corsair AX860I 860W Digital ATX 12V 80 Plus Platinum Modular Power Supply
-1x Antec HCP-1300 Platinum power supply
-5x Intel Pentium G3220 Dual Core 3.0GHZ Processor LGA1150 Haswell 3MB Cache Retail [BX80646G3220]
-1x AMD FX 4-Core Black Edition FX-4130 [fd4130frgubox]
-1x AMD Athlon II X2 250 (3.0GHz, 65W, 2MB total dedicated L2 cache, 4000MHz HyperTransport™ bus, socket AM3)
-1x AMD Athlon II X2 270 Regor Dual-Core 3.4GHz Socket AM3 65W Desktop Processor [ADX270OCGMBOX]
-1x Corsair XMS3 CMX4GX3M2A1600C9 4GB DDR3 2X2GB DDR3-1600 CL 9-9-9-24 Core i5 Dual Channel Memory Kit [CMX4GX3M2A1600C9]
-1x Corsair Vengeance Blue CMZ8GX3M2A1600C9B 8GB 2X4GB DDR3-1600 CL9-9-9-24 Dual Channel Memory Kit [CMZ8GX3M2A1600C9B]
-1x Kingston HyperX 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model KHX1600C9D3K2/8GX
-1x Corsair 6GB Triple Channel DDR3 Memory Kit (TR3X6G1600C8D)
Hard Drives:
USB flash drives for hard drives
-2x Kingston 8GB USB3.0 DataTraveler 100 G3 USB Flash Drive [DT100G3/8GBCR]
-6x Kingston 16GB USB3.0 DataTraveler 100 G3 USB Flash Drive [DT100G3/16GBCR]
Misc accessories/electrical for the enclosure:
-1x D-LINK DSS-8+ Unmanaged Desktop Switch, 8-Port, 10/100 Mbps
-all cat5e cables included.
-18x Heavy-Duty Power Cord, 15A, 14AWG (IEC-320-C13 to NEMA L6-20P) 6-ft.(2 spare for expansion can order more however).
-1x Leviton 51120-1 Panel Protector, 120/240-Volt(surge protector)§ion=39955
-18x Leviton 2320 20 Amp, 250 Volt, Flush Mounting Locking Receptacle, Grounding, Industrial Grade, V-0-MAX (Black)§ion=40369
-2x Belkin 12 Outlet Home/Office Surge Protector with Phone/Ethernet/Coaxial Protection and Extended Cord 4156 Joules
-9x Lasko #3720 20" Weather-Shield Performance Box Fans
submitted by phi0x to hardwareswap [link] [comments]

Old PC + upgrading essential components = Decent mining rig?

I'm considering getting into litecoin mining because, for one, I'm absolutely fascinated with crypto currencies, and because I missed out bitcoin mining. As a mining greenhorn, I've spent the past couple days lurking and absorbing the information and advice I come across.
From what I'm reading around this subreddit, one thing has been hammered into my head-- "DON'T GO ALL IN. It's much smarter to make small hardware investments and use your profits to upgrade in smaller increments". After reading CPU poweRAM is negligible and one must be focused on GPU and PSU to be successful, I've been considering upgrading the PSU and GPU of my ancient Dimension 5100 and get some use out of it. Is this a good idea? Details on what I want to do is below:
Current specs of the 5100:
Motherboard Chipset: Intel 945G ChipSet Supported Processor: Intel® Pentium® 4 Socket LGA775 5XXX and 6XXX processors with Hyper-Threading technology Memory - 4 Slots of 400-MHz and 533-MHz DDR2 unbuffered SDRAM - 4GB Max Total Expansion Capabilities - 2x PCI Slots - 1x PCI-e x1 - 1x PCI-e x16 Link for more info:
This has one PCI-e slot that I think I can throw an 280X into, but I'm worried about compatibility, since I think this is a PCI 2 slot.
PSU Dell 500W PSU
This is going to get upgraded with a Cooler Master V700 - 700W, mainly because I don't trust that this thing is actually putting out 500W.
Am I saving money, or just bottlenecking myself? If I'm going to spend ~$500 on this stuff, and I'm not going to get results, I'll just go to option 2 which is build a machine from scratch, since I need a new gaming pc. Just curious of the opinions here. Thanks!
submitted by aerotwelve to litecoinmining [link] [comments]

LITECOIN ( LTC ) mining performance of AMD RADEON R9 series - R9 270X / R9 280X / R9 290 / R9 290X 1450+ Kh/s Litecoin Rig x2 R9 280x (GV-R928XOC-3GD) 7 DAY$-24/HR$ - BITCOIN MINING EXPERIMENT - See How Much ... GPU Bitcoin Mining Rig Update (Sapphire R9 280 OC) DOGECOIN Mining RIG R9 280X and HD 7970

autodetect my hardware For Windows 64bit users only. or. Manual Selection. CPU, GPU & ASIC. ENTER HARDWARE MANUALLY. MINING ECOSYSTEM How does NiceHash work for you? Everyone can start mining without the need for deep technical knowledge about cryptocurrency mining. It is tailored for ease of use and features a very simple interface. When running, NiceHash Miner is connected to NiceHash ... Digital money that’s instant, private, and free from bank fees. Download our official wallet app and start using Bitcoin today. Read news, start mining, and buy BTC or BCH. GPU and CPU Benchmarks for Monero Mining. RANDOMX BENCHMARKS FOR MONERO MINING! Monero Price: 132.49 $, 111 .91 €, BTC-XMR: 0.01009 - Time: 2020-Oct-25 15:20 America/New_York Looking for Cryptonight Benchmarks?: Windows 10 tuning guide for RandomX mining: REDDIT POST Most popular hardware on this: LIST. Home; Menu. HOW-TO Start Mining Monero; Mining ... Boost-Clock:1000 MHz; Max Auflösung:2560 x 1600; Core Clock:850 MHz ... Für den Einsatz in der Industrie und in Privathaushalten geeignet Geeignet für Bitcoin; Für jede Art von 16x-PCI-Express-Steckplatz geeignet, egal ob Server oder Desktop-PC . Asrock H61 Pro BTC Motherboard (DIMM, DDR3-SDRAM, Dual, Intel, PC, UEFI AMI LGA 1155) ATX Mainboard mit Sockel Intel 1155 für Intel Core i7/i5 ... 0,28 € pro KW/h = 2,89 € x 30 Tage = 86,7 € Stromkosten. Fazit: Eigentlich sind diese Zahlen schon erschreckend genug, es zeigt zwar das man durchaus noch profitabel in Deutschland Mining betreiben kann oder könnte – aber das ist doch nur die halbe Seite der Medaille, immerhin will in vielen Fällen auch noch die Hardware bezahlt ...

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LITECOIN ( LTC ) mining performance of AMD RADEON R9 series - R9 270X / R9 280X / R9 290 / R9 290X

Rig is Running with: (7x R9 280x and 1 HD 7970) ALL MAX CLOCK SPEED TOTAL KH/s: 7,841Kh/s (5k-6k Kh/s on lower clock speed) With all the hype over bitcoins and other cyrpto-currencies, I decided to put together my own mining rig. It took me about 2 hours and 1000$ to put together and am now getting 1450Kh/s sometimes a ... Quick update on the new Bitcoin mining rig that I built. Get $10 free on Coinbase when you spend of sell more than $100: My Second litecoin Mining rig Test 1 with two Sapphire r9 280x OC graphiccards Result: 750 - 770 kh/s per Card. This video goes over my 7 day 1 week Bitcoin Mining experiment. I let my computer Mine for Bitcoin for a week straight, to see how much money I could generat...