Up to $120 bounties for answering altcoin mining questions
I'm thinking about sinking some major money into mining. Probably $15,000 to $20,000. Not all up front but sliding into it pretty quickly. I've got about three rigs up and running with ethereum but I have several issues I want input on. I am setting aside a $40 bounty for the three top answers ($20 for the top, two $10 for the runner ups) paid in bitcoins. I will be posting this in several places. If there is a REALLY good answer I will offer an additional $80 (total of $100) for the top answer. This is my research that may save me from making a big mistake. I live in the Midwest with temperature that hits 100f / 38c for 3 to 4 consecutive months a year. I want to run this operation in my garage. Cooling. This is by far my biggest concern. I live in the Midwest with three months of 100f / 38c per year. I've dealt with this before with litecoin. I don't want to have to air condition. In my previous experience fans aren't adequate. Will this gpu be able to stay cool at the temps I've mentioned without air conditioning? http://www.newegg.com/Product/Product.aspx?Item=N82E16814131676 If not … does anyone have experience using dialetric fluid / oil to submersible the cards in? I'm going to have to cool the oil somehow right? Is there a book way to do this? (Drop sealed containers of ice in the vat, pump it thru an oil radiator? Hardware. As linked above I'm leaning towards the 390X to try to retain value a year from now. I'm thinking of using this motherboard http://www.amazon.com/ASRock-Motherboard-H81-PRO-BTC/dp/B00HEUIS2G USB risers. http://www.ebay.com/itm/Powered-PCI-E-Express-1X-To-16X-Extender-Riser-Card-With-60CM-USB-3-0-Cable-/301105921855?hash=item461b4fbf3f:g:oGMAAMXQuTNTMSBV Mining. Has anyone developed a proprietary ether miner they are selling? Has vertcoin or monero mining stayed profitable with a .09 kw electric rate between the litecoin dropout and today if you are able to get a good cooling (non ac) system in place? Power. I'm leaning towards this as my PSU. http://holybitcoin.com/product/dps-2000bb-breakout-adapter-board/ (I know I'll have to install a fan for the PSU). I'm fairly comfortable with the electric side of things until it gets to the PSU (I understand amps, volts, watts, and required wire gauges. Any warnings on running server PSUs?
I've decided to start a rack of dedicated bitcoin miners and I am planning the parts right now, but I have a few questions. Q1. 5770 Single Slot vs 5830? Q2. Is overclock worth it in the long term (since the warranty is no longer valid)? Q3: Anyone have a decent Mobo link? I'm trying to figure out what mobo would be good for a 4U case and a power supply to go with it to match the number of PCI-E slots maxed out. Old Rig Specs:
Now for logistics: I own a 5770 (old one) and it only gets 175 MHash, so the spreadsheet is wrong on that account. It would seem 5830 would be my best bet if they're still stocking it next month. Although the single slot 5770 would be nice too. Table time. Note I am using 175 MHash for $/MHash calculation. Component|Description|Source|Amount+Shipping :---|:---|:--- Chassis|Middle Atlantic RC-4|Amazon|$54.99+$9.99 Power Supply|Rosewill Green Series RG530-S12 530W, 80 PLUS Certified|NewEgg|$49.99 Motherboard|ASRock M3A770DE|NewEgg|$59.99+$4.99 CPU|AMD Sempron 140|NewEgg|$37.99 Memory|2x 1GB DDR3|NewEgg|$25.98+$1.98 Graphics card|XFX 5770 Single Slot|NewEgg|$126.99 PCIe x1 adapter|Extender Cable PCI-E 1X Riser Adapter|9mart|$9 Storage|Recert Western Digital Caviar 80GB|NewEgg|$16.99 SubTotal|Approx $1.66/MHash w/ 1 Card||$271.89 SubTotal2|Approx $0.96/MHash w/ 3 Cards||$525.87 Optional| Rack|StarTech 2POSTRACK 42U -- about ten 4U/Rack|NewEgg|$119.99+$36.47 Total|With Rack + SubTotal2||$682.33 Some things to note: I want to find the best solution to the card per mobo with a decent power supply. I also want to add joule rating cost for the components on the table.
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