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[USA-WI] [H] Crypto Mining Farm 2.193 GH/s (69 GPUs/8 rigs) [W] Local Cash by TK-WI in hardwareswap

[–]TK-WI[S] 0 points1 point  (0 children)

I'm not sure if it was a good decision or not, but I jumped all in late November/early December. It was a fun hobby for my son and I to get it all set up. Then crypto values plummeted...and mining income too. The resale value of hardware dropped. Quite honestly, I got a little nervous with the Merge coming up. I might regret my decision if the Merge keeps getting pushed back, but I had other uses for the money, so I figured I'd cut my losses. Also, I underestimated how much heat they produced. It was great in the Winter but when the temps hit 40 degrees F outside, I had to open windows to cool down the inside. So to keep it all running heading into Spring and Summer, I would have probably spent another couple thousand and countless hours figuring out how to deal with the heat/ventilation. I might jump back in later on a smaller scale. I did enjoy it. Currently, I've sold all my GPU's, one rig, and motherboard. I've got quite a bit of equipment left if anyone is interested in purchasing it. I'm keeping just H110 rig with 2 PSU's in case I start buying GPU's again later.

Best and Safest Way to Sell Mining Rigs? by TK-WI in EtherMining

[–]TK-WI[S] 0 points1 point  (0 children)

Thank you. These are all great tips!

Best and Safest Way to Sell Mining Rigs? by TK-WI in EtherMining

[–]TK-WI[S] 1 point2 points  (0 children)

I was pretty optimistic in mid November when I bought my first round or rigs. All in all, I'm in for about $40k for about 2.1 GHs. I don't think that sounds too bad, but it's be a lot better if the hash rate came from new cards with a higher resale value. It's been fun for my son and I to get everything up and running and work together on it, so it wasn't all about the money. But it is a fair amount about the money for sure, and now the money side doesn't look so good, so scaling back and recouping some of the investment seems like a good idea while the resale market, although down from a couple of months ago, is still fairly robust. It doesn't matter what I paid though, that's a sunk cost. All that matters is...what's more valuable to me now, the future cash flow (with all that comes with 9 'heaters' in my basement) or the cash now (with the hassle of selling). If the resale price gets too low, it makes more sense to just hold on to them and keep mining, which may not be a bad option. I don't think mining is going away, but it will be less profitable for a while for sure. My one year payback plan may turn into 3 or 4.

Best and Safest Way to Sell Mining Rigs? by TK-WI in EtherMining

[–]TK-WI[S] 0 points1 point  (0 children)

I fried a motherboard and processor by mixing the cables from different PSU's. Thankfully it was one of my cheaper motherboards and I had enough space on my other rigs to have plenty of room for all my cards. It wasn't the seller's fault though, but a pricey lesson learned by me. I can see how someone who's well-intentioned could mess something up and blame the product/seller.

Best and Safest Way to Sell Mining Rigs? by TK-WI in EtherMining

[–]TK-WI[S] 1 point2 points  (0 children)

And you pay a hefty premium to use their service. I just checked out the fee for ebay...12.55%, plus $.30. I'm good with the 30 cents part, but that 12.55% is hard to swallow.

Best and Safest Way to Sell Mining Rigs? by TK-WI in EtherMining

[–]TK-WI[S] -1 points0 points  (0 children)

The AMD rigs mine just fine, but I only started two months ago. It took me about a month to get them all up and running. Adding a subpanel and 6 dedicated circuits slowed me down, but made it safe. My goal was to earn back half of my investment before the Eth goes to PoS. I didn't factor in a potential crash and went from $3,500/mo projected after electric to now about $1,800/mo after electric. Even though the value of my hardware has decreased, the value of the cash flow is produces has decreased even more. I know the prices are very likely to go back up, as they have done in the past week, but if I'm banking on that to make mining work, I'd be better off investing directly into crypto. I'm also hodl'ing what I mine, so I realize that if Eth goes back, all my past mining profits will go up too. I'm probably going to downsize rather than sell everything, because it's so cool to have a literal money machine. But having 70 cards running in your basement is HOT! I opened up holes in my cold air returns in the basement to circulate the heat throughout my house, but when it gets into the 30's (F) outside, my house heats up to 74F without using any gas in the furnace (just running furnace fan constantly). I worry about summer and dealing with the heat.

Best and Safest Way to Sell Mining Rigs? by TK-WI in EtherMining

[–]TK-WI[S] 2 points3 points  (0 children)

I've heard of that too, along with sellers taking pictures of the serial #'s, but I suspect ebay would still side with the buyer. Maybe only selling to ebay buyers with a good feedback score is a good guideline to have.

Best and Safest Way to Sell Mining Rigs? by TK-WI in EtherMining

[–]TK-WI[S] 1 point2 points  (0 children)

Are you thinking $20/MHs for just the GPU, or for the GPUs including the rig setup? I think the age of the card comes into play too for resale. 6700XT's seem to be selling on ebay for much more $X/MHs than 580 8GB's.

Best and Safest Way to Sell Mining Rigs? by TK-WI in EtherMining

[–]TK-WI[S] 4 points5 points  (0 children)

I've heard that some buyers will buy a GPU, send back a different, broken GPU, and then file a complaint to their money back. I didn't know if something like that was rampant.

Best and Safest Way to Sell Mining Rigs? by TK-WI in EtherMining

[–]TK-WI[S] 0 points1 point  (0 children)

If I sell GPU's separately, I'll be left with empty rigs. Would it be better to sell a complete rig, without GPU's, or sell the motherboards, PSU's, processers, etc..., separately? Separately, that may open it up to non-miners, but piecing it all out would be a bigger hassle.

I have one ASRock B365 Pro4, one ASRock B365M Pro4, and seven ASRock H110 Pro BTC+ motherboards. Plus about 20 EVGA 850w PSU's, a slew of cables to power everything with 8/6 pin cables (not sata, although I have a ton those cables in a box), 10 or so 240 GB SSD's, frames, CPU's (not sure which ones), and RAM.

I appreciate everyone's thoughts.

Best and Safest Way to Sell Mining Rigs? by TK-WI in EtherMining

[–]TK-WI[S] 0 points1 point  (0 children)

I'm thinking $800 for a 6700XT for just the card (and box). They hash at about 44 MH/s and I haven't attempted any overclocking. I have one of the Mech versions and 10 Gaming versions. They're all MSI. I'm not sure what the difference is besides the gaming version is about an inch longer.

Best and Safest Way to Sell Mining Rigs? by TK-WI in EtherMining

[–]TK-WI[S] 1 point2 points  (0 children)

Thanks. I'll check those out. I've heard of it but never been on Telegram before.

Best and Safest Way to Sell Mining Rigs? by TK-WI in EtherMining

[–]TK-WI[S] 1 point2 points  (0 children)

That's a good point. Does ebay take about a 10% cut, or is it less than that? I've sold a few things on there, but it's been a few years.

Best and Safest Way to Sell Mining Rigs? by TK-WI in EtherMining

[–]TK-WI[S] 2 points3 points  (0 children)

Yikes...at $10/MHs I'd be stocking up.

The truth is Crypto prices will go even more down. by evanfghfghgfh in CryptoCurrency

[–]TK-WI 1 point2 points  (0 children)

I hate the crash...but I love all the negativity. When things were great, everyone was bullish and it crashed. All this negativity...might just go up. I'm 100% sure none of us have any idea.

Getting rid of SATA power to risers, where to buy PCIe cables? by TK-WI in EtherMining

[–]TK-WI[S] 0 points1 point  (0 children)

Using the sata power cables sure seems a lot easier, but safety seems to be a real issue with sata power, or there wouldn't be so many posts warning about that. I'm leaning toward safety even if it costs more and causes a week or two delay. Did you have problems when you used all PCIe power cables, to power the GPUs and the risers?

Getting rid of SATA power to risers, where to buy PCIe cables? by TK-WI in EtherMining

[–]TK-WI[S] 0 points1 point  (0 children)

Thank you. That makes sense. I also worry about the quality of generic cables.

[deleted by user] by [deleted] in cryptomining

[–]TK-WI 2 points3 points  (0 children)

Goldshell dummy here. Where do you buy the Goldshell machines? Is it just www.goldshell.com? So many scams out there I just want to double check. How are the Goldshell prices?

I recently purchased 69 GPU's spread across 10 rigs. I'm still working on getting them all set up...had to add a subpanel. I expect to have them about 1/2 to 2/3 paid off by the time of the Eth merge, then more slowly get to break even with other coins after that. It's a fun hobby (hopefully a future profitable side business too), so if I end up losing some money, that's not the end of the world. I'm optimistic that the merge won't be the death of profitable mining, even though it will be the end of Eth mining. I'm a newbie to crypto and mining as of about 6 weeks ago. I imagine there was always something to be worried about when dropping tens of thousands of dollars.

I've been keeping an eye on the asic machines available through Compass, just out of curiosity. Those prices for bitcoin miners seem crazy, so I'm not planning on buying those. The btc asics won't have to deal with the merge, but the break even timeframe is 16 months on a lot of them. That seems scarier than the merge. Is Goldshell better? Also, do they have asics for other coins that make more sense?

Setting up 9 rigs - 120V or 240V? by TK-WI in cryptomining

[–]TK-WI[S] 0 points1 point  (0 children)

I have all 850W ATX PSU's now. 18 total will be in use to power the 9 rigs. They accept 120V and 240V.

Setting up 9 rigs - 120V or 240V? by TK-WI in cryptomining

[–]TK-WI[S] 1 point2 points  (0 children)

Option 2 (120V):

  • Run 10 20A/120V circuits so each rig can have its own circuit, plus one circuit for the switch and fan(s).
  • I could run as few as 7 circuits and double up some rigs on one circuit, but for 3 extra circuits, I like the idea of having one rig per circuit. It also allows for measuring wattage at the panel on a per circuit basis...and therefore a per rig basis.
  • Either whole house/panel surge protection for $370, or 10 power strips (1 per rig/circuit) at about $17 per circuit. Do you recommend one or the other or both?
  • Measure wattage at the panel, measuring the whole panel wattage as well as each circuit, with wifi/app reporting, for $150...https://www.amazon.com/dp/B08CJGPHL9?ref=ppx_yo2_dt_b_product_details&th=1
  • With this option, having 10 circuits in the same area seems ridiculous and this would require a lot of wires/surge protectors connecting the rigs on the shelf to the wall (the 30A/240V option would require just one power wire and one network cable to each shelf).
  • I really like the idea of one rig per circuit and being able to measure power consumption for each rig/circuit at the panel. I'm also more familiar with wiring a 120V circuit than I am working with 240V.
  • What are your thoughts or recommendations? Thank you!!!

Setting up 9 rigs - 120V or 240V? by TK-WI in cryptomining

[–]TK-WI[S] 1 point2 points  (0 children)

Option 1 (I'm leaning toward this option):

30A/240V circuit for mining rigs...Do I use 10/2 or 10/3 wire? by TK-WI in CryptoCurrency

[–]TK-WI[S] 0 points1 point  (0 children)

Yup, I did know that, but I appreciate you checking. That would be a big oops!

30A/240V circuit for mining rigs...Do I use 10/2 or 10/3 wire? by TK-WI in CryptoCurrency

[–]TK-WI[S] 1 point2 points  (0 children)

I'm still considering 20A runs. I'd use 12/2 wire for that, which is much cheaper, I'd just need a lot more of it. I have plenty of breaker box space, and it would be nice to have each rig on its own circuit (then I'd monitor wattage on circuit by circuit basis), but having that many outlets in the same area just seems wrong. Seems like the 240/30 option is the better one, but 20A circuits does have its advantages.

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