Spondoolies-Tech vs Bitmain for a larger operation?

[CptTripps]

Hey gang. I'm new here.

Quick background: My company has been in the financial tech space for 10y and currently processes about 500M transactions annually in the Gift/Loyalty space. We have an interest in linking crypto currencies, and that's what brings me here.

I have a friend with a company that has a 500 TH/s operation using the Antminer S5. We're looking at building something similar in the coming weeks, but after I started researching, I came across the Spondoolies-Tech SP20.

Looks like bang-for-buck has the SP20 in the lead, but I didn't know what else I should be looking at. I've tried searching here, but it's currently disabled.

Can anyone point me in a good direction?

I've ordered 5 S5s and 5 SP20s to compare the two.

Pros/Cons?

Thanks for the help. It's appreciated.

[1715605939]

1715605939

[1715605939]

1715605939

[philipma1957]

Hey gang. I'm new here.

Quick background: My company has been in the financial tech space for 10y and currently processes about 500M transactions annually in the Gift/Loyalty space. We have an interest in linking crypto currencies, and that's what brings me here.

I have a friend with a company that has a 500 TH/s operation using the Antminer S5. We're looking at building something similar in the coming weeks, but after I started researching, I came across the Spondoolies-Tech SP20.

Looks like bang-for-buck has the SP20 in the lead, but I didn't know what else I should be looking at. I've tried searching here, but it's currently disabled.

Can anyone point me in a good direction?

I've ordered 5 S5s and 5 SP20s to compare the two.

Pros/Cons?

Thanks for the help. It's appreciated.

I have  multiple threads I will provide links

https://bitcointalk.org/index.php?topic=872014.0   sp20

https://bitcointalk.org/index.php?topic=907219.0  s-5

https://bitcointalk.org/index.php?topic=927941.0  s-5 fan mods

Hard to say what would be better for you.

 But if power is really cheap the sp20's can do 1500gh   

the sp20 can downclock to 900gh and use .46 watts per gh

the sp20 can overclock to 1500gh (even 1650gh with good psu's and good cooling)   and use .61 watts per gh       this large range of hash is nice.

the s5 can overclock to 1300gh and use .54 watts per gh

[chek2fire]

Both of them has a great reputation in bitcoin mining world. Spondoolies i think has greater customer support and bitmain it seems that has a little better machines. Because you are new here be carefull for the scammers. I think already many of them has pm you and will say that the are from this companies

[CptTripps]

chek2fire: I already have appropriate contacts at both companies, so I can weed out the scammers pretty quickly. I'm not likely to place a 6-figure order from a guy on a forum. 


philipma1957: Thanks for the links. Normally I'd search but that function is disabled.

[philipma1957]

chek2fire: I already have appropriate contacts at both companies, so I can weed out the scammers pretty quickly. I'm not likely to place a 6-figure order from a guy on a forum.  


philipma1957: Thanks for the links. Normally I'd search but that function is disabled.

no worries glad to do it.

either piece of gear is pretty good.  

bitmaintech sells a 52 pack at a discount

sp-tech sells a 15 pack at a discount

Both companies will negotiate a bit on larger buys.

If you set it up let us know .

One more thing in favor of sp20 it you can list 8 pools  vs 3 pools on the s-5.

sidehack may be able to get you good 2000 watts server psu's


https://bitcointalk.org/index.php?action=profile;u=130792  his profile

http://www.gekkoscience.com/products/IBM2K_board.html  his breakout board for 2000 watt psu's

[sidehack]

Oh yeah, hey there. The official sales thread for the server PSU stuff we build is at https://bitcointalk.org/index.php?topic=940317.0

I'm actually a bit short on the 2000W PSU itself right now but I'm working on finding more sources. I do have plenty of interface boards in stock if you want to test anything out. Feel free to ask questions.

Sorry I can't offer advice on whether to fetch an S5 or SP20, I have neither so I haven't done any comparisons.

[Xian01]

Can't go wrong with either SPTech or Bitmain for the time being. Bitmain, IMO, is priced a bit high at the moment but it's really a coin-toss between the S5 and SP20. Both are great products.

Personally, I'm favoring SPTech lately, and feel that Bitmain is starting to become hostile towards the home miner.

Having said that, I understand SPTech is not targeting the home mining market for their next gen, so, the entire mining scene is in a transition right now with Bitmain seemingly starting to go the BitFury route

[dogie]

Something which hasn't been mentioned yet, S6

[entirely speculative post based on thin air]

[CptTripps]

Thanks sidehack. I'll look at that, and PM you my email address so we can take it off-line.

I have a lot (like....300) older Dell 1200W PSUs from our old server farm. (Back when we still had iron servers) Perhaps I can use those? I know we have a ton of 750s too. I'll take inventory. Maybe they'll be useful....maybe not.

Some quick math has the Spondoolies coming out ahead. From the websites, the 52 and 15 unit pricing has the S5 with a Price Per TH at $357 and the SP20 at $215. That's a no-brainer. I haven't factored power consumption in yet. Still building out my Excel sheet.

[Bicknellski]

Can't go wrong with either SPTech or Bitmain for the time being. Bitmain, IMO, is priced a bit high at the moment but it's really a coin-toss between the S5 and SP20. Both are great products.

Personally, I'm favoring SPTech lately, and feel that Bitmain is starting to become hostile towards the home miner.

Having said that, I understand SPTech is not targeting the home mining market for their next gen, so, the entire mining scene is in a transition right now with Bitmain seemingly starting to go the BitFury route

Where else can anyone go?

The home market is dead.

The commercial cloud operations are the only people willing to buy in enough volume to keep these fabricators from folding up shop. This was the last time you will see most of these companies hawking wares here.

[sidehack]

Personally, I'm favoring SPTech lately, and feel that Bitmain is starting to become hostile towards the home miner.

Having said that, I understand SPTech is not targeting the home mining market for their next gen

Just a note on that distinction, because Bitmain has never made a miner that didn't fit a home-mining market, and before the SP20 Spondoolies never made a miner that did.

Depending on the model of Dell 1200, it might not take much to set you up with a good interface. We have all kinds of stuff for the 750s. Sure, drop a line.

[dogie]

Some quick math has the Spondoolies coming out ahead. From the websites, the 52 and 15 unit pricing has the S5 with a Price Per TH at $357 and the SP20 at $215. That's a no-brainer. I haven't factored power consumption in yet. Still building out my Excel sheet.

Its worth balancing the S5 to 1250GH and the SP20 to 1625GH as those are the numbers most people achieve. SP20s do struggle to get up to rated speed, especially with any sort of ambient temperature while most people seem to get up to 1300GH with a sturdy PSU.

Also, if you drop me a PM [I'll give it to sales manager] I'm sure you can get a better price on the S5 for bulk.

[Xian01]

Something which hasn't been mentioned yet, S6
[entirely speculative post based on thin air]

I'm honestly really looking forward to the S6, and any official water cooled solutions they have using their latest chips.

EDIT: Although I just picked up 3 more SP20's off EBay to replace all my S3's, so I have no idea where I'd put an S6 if it won't run on a 120V circuit...

[Xian01]

Just a note on that distinction, because Bitmain has never made a miner that didn't fit a home-mining market

... and splitting hairs, one could argue that the noise generated by the S5 does not make it suitable for the home-mining market without fan modifications.

Downclocked SP20's at 20% fans doing a steady 1300GHs @ ~750W and are about as loud as an S3 going full tilt (~55-60dBA)

The S5's, which do not allow manual fan control, run at ~70dBA.

Disclaimer: I have empty rooms available to me that I house loud miners in, so my "home-mining" setup might not represent the norm - Running SP20's full tilt @ ~1.6GHs

[CptTripps]

The room we're going to be using for our operation formerly had 6 42U racks of gear in it. We have plenty of power and cooling available. I know the form factor of these is quite a bit different than a typical server rack environment, but we're confident we can modify it to work for the space. We have absurdly cheap power pricing, so that's why we're considering this.

Noise isn't a factor here. Just looking for the best bang/buck.

[Xian01]

Noise isn't a factor here. Just looking for the best bang/buck.

Honestly, it's probably a coin toss if you're doing a large purchase.

The build quality of the SPTech products is higher, but the Bitmain products will probably end up being the best "bang-for-buck" option IMO, but you're likely to have more issues with the Bitmain products in my experience.

The SPTech stuff "just works" and is solid.

If I could make an analogy, SPTech would be Mac, and Bitmain would be PC.

[CanaryInTheMine]

You should run your operation as a business where you can take advantage of depreciation.
One other item you should consider is the final resale value.  No one knows this offcourse, but make a super conservative estimate.

In the next 2 months we're likely to see new equipment from several manufacturers...

Do the math as it may be better to buy btc right now and hold them for those 2 months etc...

[CptTripps]

If I could make an analogy, SPTech would be Mac, and Bitmain would be PC.

I was actually going to ask that very question in my initial post, but didn't want to start a whole other debate!

Me = Mac guy: I have the 6-color apple logo tattooed on my left arm...

[tvasbn]

this guys have chosen S5:

https://www.youtube.com/watch?v=zLWC_FI3B1g

[tvasbn]

anyway for the best $/Gh/Power consumtion, and since you already have 6 racks, you coul go for the SP35