I'd hoped to get some offers. A lot of interest via PM, but no offers yet.
haha i just dont wanna insult ya with what id offer figured id see were ya stand on what ya want for them first |
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Anybody interested in buying a 100GH/s X-1 or a 350GH/s Monarch? They are both nearly silent and would probably make great miners for someone with cheap power and in need of some heat for the winter with no noise. Open to offers. Shipping from Arizona, US.
How much for the Monarch? I'm in MA. Thanks!  I'd really like to wait a bit and see if I can sell them as a pair to save on shipping. If another couple days pass and nobody wants both, I'll split them up. can i get a price on both to 84713 plz |
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Cool. So when you are powering a PSU or PDU for example, do you have to use a hot, a neutral as well as a ground, instead of the 2x hots + ground that you would see in a typical 240V application of single phase? Or else what do you use on the plug/receptacle where the 2nd hot would typically go?
hot neutral and ground , same way u would wire up a normal 110v outlet |
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277V requires half the breaker slots that 240V does. (If single pole = half double pole)
Out of curiousity, is that because 277V is taking 1 leg of 3-phase power as opposed to 2x "halves" of split phase power to make 240V? And if so, is balancing the 3 legs of 3-phase crucial when dealing with single power sources (like PSU's)? yeah since ur only pulling form 1 leg u only need a single pole breaker , its not critical to balance the load between all 3 phases on my setup is what the electricall guy told me but my breaker panel rotates which pole leg each single pole breaker hooks into as u install them into the panel. like this breaker 1 - leg 1 breaker 2 - leg 2 breaker 3 - leg 3 breaker 4 - leg 1 breaker 5 - leg 2 breaker 6 - leg 3 breaker 7 leg 1 etc etc we just ran all the main wires today and should be hooking them up to power in a lil while after lunch ill take pictures when its done today , the only think im missing is my plugs and outlets , i may try to wire up a single 110 outlet to the 277 just so i can plug in a single psu and see how it does , if not i have to wait till friday or monday for that stuff to be delivered to wire up all the lines i might have some 240v stuff laying around that would be safer to use vs the 110 outlet for testing the setup today |
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id also be in for some , these would make more sense then the ibm 2880's im using
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S4 psu WILL run fine on 277. Not over 300V. It does require a slight modification.
care to share? |
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im curious as to what u guys are using for outlets on 277 , ive been using 110/120v plugs for my 240 since they are cheap and i dont have to replace my cords
for the 277 lines i came across a 10 pack of 20 amp 250v outlets for 1$ so i grabbed them to try think ill have any issues with them? they are 6-20p's
not code but they should work. im aware , but i know that the 110/120 outlets will handle 220/240 just fine , just have to make sure noone plugs in a 110v device into one when its wired for 220 all mine are marked so that doesnt happen i figured for only 1$ id give the 250v outlets a shot just to get started , eventully im going to do what they guy whos been helping me does and do big lines out to pdus so i dont have to mess with outlets and special cords friggen 3 phase 480/277 stuff is exspensive |
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im curious as to what u guys are using for outlets on 277 , ive been using 110/120v plugs for my 240 since they are cheap and i dont have to replace my cords
for the 277 lines i came across a 10 pack of 20 amp 250v outlets for 1$ so i grabbed them to try think ill have any issues with them? they are 6-20p's
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I think it would be easier if you just calculated a fee structure and then let people decide whether your hosting offer is competitive.
The "trust based" approach is likely to cause disagreements about proper distribution of profits between you and your customers.
However, if you want to avoid running this as an actual business, your approach might work if you find people whose needs match your profile.
Good luck!
Onkel Paul
i could just offer hosting prices 60-65$ a kw ,but i figure offering it as a partnership would be better as the person would pay less for hosting but yet i would still make some btc for my time and work i put in but i think ur right , if i just offered hosting at the prices i said above there would prolly be a ton of ppl that would gladly pay that price versus what some of the other places get |
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Love it!
I'm looking for months now and havn't found any good housing partners. The best I could get is a $0.10 per KWh contract in a datacenter around the corner, but they are not into the "housing a miner" business yet. I'm at 0.17 per KWh and squeezing out $0.30 a day, well it could be worse.
ill let u know if it ever goes anywere , i am doing some hosting but its for ppl i know from my old mining pool , i honestly thought there would be more interest or some sort of feedback on this |
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Energy from the wall can vary up to 10%, if there's a spike aren't you going to risk your PSUS's going nova?
im having the power company adjust the voltage at the pole on the transformers so its slightly below 277 just incase of spikes , my 240v dry transformersare actually adjusted to output 256v at the outlets and all those have been just fine for the last 9 months |
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at my one place i have ALOT of very cheap power , there's only 2 places in the usa i know of with cheaper power.
#1 i have more power then ill ever come close to using just due to the fact i don't have the money needed to fill up the power with machines
so here is an idea ive been thinking about , which helps out both me and ppl who have high electricity cost/machines sitting unplugged because they run at a loss
basically i would host machines for ppl no monthly charge- no setup fee , we take the actual cost of power right off the top of what the machine makes per month.
Then me and the owner of the hardware split the remaining profit on a predetermined percentage that we would work out before hand until the miner no longer turns a profit.
At the point when the miner no longer turns a profit the owner can have it shipped back to them , or if they sell the machine on ebay or such it can be shipped from me directly to the new owner etc etc.
obviously i need to figure out how i would do the payments and were those miners will mine , either i just point them all at one account and manually pay each person weekly on what they earned with there percentage , or maybe ill trust the user to let there hardware miner for them and trust them to make the payments to me at the end of each week
since this requires trust on both half's i think i would let the machines mine directly for the owner and let them send me the payments, this way we have to trust each other and its not just the owner having to trust me , and doing it this way if the owner doesn't make a payment i just shut the machines off
to give u an idea on what i pay for power i can still run s1's for a lil bit of profit
if anyone has interest in this suggestions or any other feedback let me know
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I've sold my S4, but I think the boards are internally wired with the normal 6pin PCIe (GPU) plug. So changing the internal psu can also be an option to go for 277V.
yeah one of the s4's i just picked up has the pci-e conectors and a burnt psu , ill be running that unit on an ibm 2880w psu on 277 iirc the early s4's use lugs for getting power to the boards and after a certian batch the went to pci-e connectors , either way though u could wire up a psus for them to run them on 277 |
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was wondering who knows what psus will operate on 277 , since i am adding a good amount of 480/277 power
as far as i know right now
dps 2000
dps 850/1000w 110/220-277v
ibm 2880
dell 750
dl580 900/1300w 110/220-277v
what else can we add to the list of known to work on 277
known not to work on 277 ( what else can we add to the list that wont work on 277 )
sp10
sp3x
s2
s4
jstew, please forgive my inexperience with the term 277. You mention 480/277. Is this three phase power or do you mean you are using a single phase of the three phase and it measures 277? I enjoy learning about anything electrical, and would appreciate understanding a bit more here. Personally, I use split phase 240, which is simply two 120 which are "off phase" from each other. This is how most homes are wired in the US. I am familiar with three phase 480, but each leg would be carrying a load, unless we get into talking Delta or Wye it should be fairly consistent at 240, and of course we can have a hot leg situation. Maybe that is what you mean? You have a stinger reading 277? its 3phase 480 one phase to ground is 277 , im actually still learning this myself so i may not give the best explanations I'm with you now, I just didn't remember it being called 277, or measuring that value, but I understand. It is my terminology mistake I'm sure, but I am with you on what you have. If I may ask, do you have this ran to your home? no this is not being run in my home. i have a small farm at home and a farm in an agricultural location with a massive amount of power, spring/summer and part of fall we routinely pull 180,000kwh 24/7 , and spikes up over 300,000kwh , i have more power then i will ever use at this location i dont belive u can get 480v power at most residential locations |
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Well, I've read myself into HP's common slot server psu's a bit, because those were the first I bought and you can get them for low on ebay. The wiring for a startup is clean an easy, there are only 2 pins to connect and even a platinum grade with a 94% efficiency is around $20-$30. I'm using 230V with 4x460W and one 1200W psu's. Used psu's above 750W and 94% efficiency are quite rare. So you can get a lot of 500W 277V psu's with 94% efficiency and a good value/money ratio. linkThere are for sure some 80-90% efficiency psu's with >1000W for less than that. thanks |
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I know there are two different models of PSU that go into the SP3X. Are both known to not work on 277? It's been a while but I was talking to a friend start of this year doing hosting of SP30 gear and he was shifting some to 277V if they had the right PSU. I could be misremembering and it's entirely possible I'm wrong.
i wasnt aware of the 3x having 2 different models of psu's i just had a friend who had tried to run them on 277 and he told me they wouldnt work , ill edit the first post to state the info u posted |
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HPs 200-277V HP 1200W Common Slot 277VAC Hot Plug Power Supply Kit (717359-B21) HP 750W Common Slot 277VAC Hot Plug Power Supply Kit (717364-B21) HP 500W Common Slot 277VAC Hot Plug Power Supply Kit (717362-B21) here are the quick specs see page 16 and ff. EDIT: 480Vac in a WYE configuration and the line to neutral voltage is 277Vac EDIT-2: Just saw your photo porn pix, so you need a bunch of those psu's... HP 633680-001 500W are 277V and on ebay @25 bucks each -for a platinum psu not bad at all. Specs of the older ones (2013)all the psus i have for all the s3's neptunes, sp20s will already run on 277 , im just trying to gather a list so as i ad more hardware i can be on the lookout for other psus that work right now i am using dry transformers to bring everything to 240 , the machines i have liek the s4's etc with built in psus will stay on the 240 , everything i have that i can move to 277 will be moved over to free up room on the 240 |
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was wondering who knows what psus will operate on 277 , since i am adding a good amount of 480/277 power
as far as i know right now
dps 2000
dps 850/1000w 110/220-277v
ibm 2880
dell 750
dl580 900/1300w 110/220-277v
what else can we add to the list of known to work on 277
known not to work on 277 ( what else can we add to the list that wont work on 277 )
sp10
sp3x
s2
s4
jstew, please forgive my inexperience with the term 277. You mention 480/277. Is this three phase power or do you mean you are using a single phase of the three phase and it measures 277? I enjoy learning about anything electrical, and would appreciate understanding a bit more here. Personally, I use split phase 240, which is simply two 120 which are "off phase" from each other. This is how most homes are wired in the US. I am familiar with three phase 480, but each leg would be carrying a load, unless we get into talking Delta or Wye it should be fairly consistent at 240, and of course we can have a hot leg situation. Maybe that is what you mean? You have a stinger reading 277? its 3phase 480 one phase to ground is 277 , im actually still learning this myself so i may not give the best explanations |
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was wondering who knows what psus will operate on 277 , since i am adding a good amount of 480/277 power
as far as i know right now
dps 850/1000w 110/220-277v
ibm 2880
dell 750
dl580 900/1300w 110/220-277v
HP 1200W Common Slot 277VAC Hot Plug Power Supply Kit (717359-B21)
HP 750W Common Slot 277VAC Hot Plug Power Supply Kit (717364-B21)
HP 500W Common Slot 277VAC Hot Plug Power Supply Kit (717362-B21)
works but is unreliable
dps 2000bb
what else can we add to the list of known to work on 277
known not to work on 277 ( what else can we add to the list that wont work on 277 )
sp10
s2
s4
possibly works on 277
its come to my attention that the sp31 has/may have 2 different models of psus one of which works/ or may work on 277
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no one is interested ?
acceptu do u still have them ? btw u know me from irc/ban's channel id have sent ya a msg on there but ur not online |
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