cool
ko͞ol/
verb
gerund or present participle: cooling
become or cause to become less hot.
I'm not going to argue about the semantics. But every method of cooling you can think of involves removing heat via air (or sometimes liquid).
My last try to fix your ignorance. Search for the meaning of the word CONTEXT, that will give you some small chance to understand what I did meant. Other than that, I am helpless, sorry. Im siding with jimmothy - he knows enough about how removing hot air works to reduce operating temperatures of hardware (assuming the air flowing is in a lower temperature than your exhaust, either by A/C or simply cooler outside air) that to say that removing heat isnt cooling is silly. lets rephrase the question: BEFORE and AFTER adding the blower to remove hot air, what is the difference in heat production (aka power draw) that the building can handle under the same conditions as before? obviously theres a dozen factors like placement and direction and power draw of the blower, but a rough number is enough. can you handle ~30kW more equipment than before? 50kW? |
|
|
|
the issue is 2700usd for 2 th at 2000 watts. plus shipping.
I buy 5x s-3's for 3.25 btc that is 2.2th
3.25 btc is 1950 usd
1950 usd for the miners
350 usd for 2 evga 1300 psu's
2300 usd add on 50 bucks for cables and a gigabyte switch
One A1 vs Five s-3's
I am at 2700 usd + pay to ship vs 2350 usd + free shipping
this hashes at 2.0th vs 2.2th
this spends 2000 watts vs 1700 watts
Simply does not compete with the s-3
1. Our 2T is full unit . will PSU. buyer only can connect and begin mining. S3 without power supply. 2. We have update price . Wholeseller 2280USD/PC. big quantity can cotact us for discuss. what sort of power supply is used? for the power draw it would hopefully be 80+ GOLD or better. even the wholesale price before shipping is no better than bitmain, since it does not include shipping, and requires an extra 300W (~$30/month) power draw. <$2200 shipped and you might have a sale. even with your unit being easy to setup, so are the antminers, which are a breeze using the S3 |
|
|
|
@Bitmain
Will Bitmain release a Antminer U3?
greets and thanks
they will not the chip wouldn't be well-suited; even a 2A USB 3.0 port would only provide 24w, or maybe 30GH using two chips. It would probably cost over $60 in bulk and require forced air cooling. a typical USB 2.0 (500mA) such as with the U2 would only provide 1/10th that power though and would require costs of ~$12/GH to produce |
|
|
|
Not that I don't like Spondoolies, but I have yet to get 1.4T out of any of my non-spondoolies hosted miners, maybe 1.2T.
Switch on 208-240V. That's why I said my spondoolies hosted miners hash at 1.4T because they are on 208v-240V. But here in America, it is common to run off of 120v. Now, everything is fine if I run it all in the datacenter, but what if the hosting fee becomes too much based on BTC prices and I just want to take them back and put them in some back room at the office? As in it makes a small margin of profit running them myself without hosting, but pay hosting fees wouldn't be profit anymore at that point. Maybe everyone else doesn't think this way or have this concern... While others may not have the concern, I was also asking this same type of information about the SP30s a few months ago. We were excited to hear about the product, but I didn't end up recommending it to my company (and others interested in it) because they couldn't tell me the hash on 120v which I thought was strange. They said it could operate on 120v, but could not disclose hash rate to me. Honestly, I also had in mind that antminer will come out with an S4 based on their S3 design. I don't want to go around explaining to people who bought these that they have to take them out of the datacenter, but can't run them anywhere except if they have 208V-240V service. 240V is easy to install in offices/homes that have 2-phase service. 208V is also very common in almost all office buildings that have thier own 600V->120/208 transformer, though there may not be wiring installed for it. Its common knowledge that power supplies are more efficient and capable of higher outputs when running at 200V or higher, and I personally have converted all my operating hardware to run at 213V for this reason. Paying a few hundred to install the wiring and outlets will pay off in the long run from that increase in efficiency 9and in the case of SP10s, the additional hashrate) |
|
|
|
I paid on saturday afternoon and on tuesday was given a tracking number. Its now Thursday and the only status message for the shipment is: "1 Shipment information received HONG KONG - HONG KONG"  |
|
|
|
|
of 4 units:
a) 231.25MHZ = 452Gh
b) 218.75MHz = 429GH (one chip is shown as - though, so presumably im losing about 12GH)
c) 250MHz = 502.5GH
d) 218.75MHz = 428GH (one chip is shown as - though, so presumably im losing about 12GH)
ive tried rebooting the two systems with the dudding chips but to no avail. has anyone had and resolved this issue? (with the S1 a reboot always seemed to solve it)
overall im not terribly impressed with the quality of the components bitmain used. hopefully its a batch-specific problem though and wont occur again.
|
|
|
|
Correct, I'm using the four pin plugs and the +/- between the 6 pin and 4 pin plugs is reversed!! thats how I did it. Also for the record, as I'm using 4 pin plugs on my btcgarden I can confirm that two wires carrying the current seems to be ok... so long as they are 16awg or better. Also, I'm using two £20 LED 400w power supplies that I found on ebay... here are the ones I use. They read 12.25v with no load and amazingly 12.25v when the miner is running!!!! great value! http://www.ebay.co.uk/itm/161081134308?var=460221403257&ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649HTH I would strongly recommend not using these. They are really terrible PSU's and will likely fail on you in short time. Hopefully they won't take out your miners with them... Really? they're that bad? I was only trying the kit out on these but now you've got me wondering. Is it likely the voltage will shoot up above 12v if they fail? they are not designed for 24/7 load, and are not very efficient - probably only 70% efficiency or so at full load. By comparison spending $150 more on a 80+ gold or better PSU would probably pay off in power savings within a few months |
|
|
|
The chip is spec'd at 9.33W @ 7.5 0.75V - you can do the math on that amiright?
thats about 12.5A per chip with 2 chips per regulator - only about 25A draw or so which is well within the limits of the TPS53355. Either bitmain got some crappy/knockoff regulators or the problem is something else. in the S1 the TPS53355 was able to push 35A without issues in most miners. |
|
|
|
but I doubt you will get the same quality anywhere at the moment. I'm curious to know what metric you are using for quality. Does loudness = quality? 1) the SP30 will be less loud due to 80mm fans 2) the SP1 (and thus the sp30 presumably) is the most compact, high-tech device out there. It reeks of quality from the slim design to the ~1300W-capable PSU to the fact that it weighs almost half as much per GH as any other competitor right now due to the small heatsinks 3) the interface is a snap to use, and the ability to control the clockspeeds, amperage, and fan speed is fantastic 4) the per-chip clockrates and voltage are perfect. Bitfury blew me away when they could control chips seperately, but Spondoolies nailed it i think |
|
|
|
Hey dogie. This tutorial looks incredibly useful, thank you so much for creating it! I am new to Bitcoin mining, so I just want to get this straight. If I buy the Antminer S3 and the PSU (this one: http://www.amazon.com/gp/product/B00ALK3KEM/ref=ox_sc_act_image_1?ie=UTF8&psc=1&smid=ATVPDKIKX0DER) I will be good to go, right? I will just need to connect the S3 to the PSU and an ethernet cable. I am really sorry about my lack of knowledge, but please have patience for me. I will do my best to find out more and more about Bitcoin mining. That is all the hardware you need. You also need a pool account for connecting your miner and mining on. The setup for the S3 is very simple. Alright. Thank you. I just have one more question. Why do I need a 750W PSU if the miner only uses about 350W? Wouldn't getting a 500W Corsair PSU make more sense? I have the same question, I have a bunch 400w UL certified power supply can I just use one for each miner? From my understanding the bronze to gold level is the efficiency of power draw from the outlet but they all should deliver the rated power? IE 400W power supply should deliver 400W ? your 400W is likely spread across 12V, 5V, 3.3V so that 12V is actually only ~300W. If it has two rails, 150W may be for the motherboard cable and only 150W over PCIe on top of that, you should not load PSUs past 80% for 24/7 operation like bitcoin mining. It reduces efficiency and cheaper models will burn out within months |
|
|
|
Surprised we haven't seen people post fleets of S3s in racks. I'm seeing S1 being modded or retired but didn't Antminer get most of the S3s from Batch 1 pushed out yet?
 *not my image or miners - borrowed from the nxt forums* |
|
|
|
Release B4  they are likely using the last few days to ensure happy B1-B3 customers. By the end of the week almost every order should be shipped and they can offer 48-hr shipping on B4 onwards. also, they probably need a few days to redesign the miner to achieve 500GH if its possible. |
|
|
|
|
4 units (batch 1, first ~15min) arrived today and setup was a breeze.
gorgeous case, makes it feel like a solid consumer-grade product compared to the S1.
miner 1: 237.5MHz 477GH (2.5hrs)
miner 2: 225MHz 417GH (2hrs)
miner 3: 225MHz 450GH (2hrs)
miner 2: 225MHz 413GH (2hrs)
so far overclocking is a total grab-bag. looks like 2 of the miners lose hashrate at even a slight overclock, and the other has negligible improvement over stock. miner 1 will go for 250mhz tomorrow
I havent seen the invoice yet, but presumably it was about $400 CAD to import and receive all 4 miners.
|
|
|
|
I just wonder how they can do this:
The claim is this: Using smarter code, and better physical design, he explained.
“I have a non-standard implementation of SHA-256 [the cryptographic software algorithm used by the Bitcoin protocol], as well as a very good physical implementation of the engine on the ASIC,” said Corem.
One thing he claims to have done is reduce the ‘toggle rate’ of the chips – meaning the number of times that the tiny electrical components have to switch electrical state.
If they deliver as promised, I guess it's true. http://www.coindesk.com/spondoolies-tech-promises-power-efficient-mining/Its worth remembering that Bitfury made a 55nm chip capable of 1w/GH and about 2.5gh/chip. The 55nm rev. 2 improved the hashrate by about 15% without any increase in power draw. smart chip design does a lot, as does choosing how to run the chip (Bitmain 55nm can use between 2w/GH and 1w/Gh depending on clockspeed and voltage). There are multiple ways to design a chip to hash SHA256, and I firmly believe that spondoolies-tech has designed a very capable ship based on the SP10's efficiency |
|
|
|
why does it tell me that it wont connect to the pool?
"poolname" : "NiceHash-X13",
"url" : "stratum.nicehash.com:3337",
"user" : "1D75BgAientKNn8JbvxFifALmEENQK5Ztj",
"pass" : "x"
Try "url" : "stratum+tcp://stratum.nicehash.com:3337", oddly, this works: "pools" : [ { "poolname" : "NiceHash-X13", "url" : "stratum.nicehash.com:4337", "user" : "1D75BgAientKNn8JbvxFifALmEENQK5Ztj", "pass" : "x" } BUT I cant get this to work: { "pools" : [ { "poolname" : "NiceHash-X11", "url" : "stratum.nicehash.com:4336", "user" : "1D75BgAientKNn8JbvxFifALmEENQK5Ztj", "pass" : "x", "pool-kernel" : "darkcoin-mod", "pool-intensity" : 17, "pool-thread-concurrency" : "8192" }, { "poolname" : "NiceHash-X13", "url" : "stratum.nicehash.com:4337", "user" : "1D75BgAientKNn8JbvxFifALmEENQK5Ztj", "pass" : "x", "pool-kernel" : "marucoin-mod", "pool-intensity" : "13", "pool-thread-concurrency" : "8192" } without it spitting out all rejects and hashrates of ~13kh I really want to be able to have it switching between x11/x13, but at least the x13 4337 server operates on its own (still no luck on 3337 for whatever reason?) PS: its a quad R9 270X rig try removing all "pool-" i used to have the problem I think its working  but putting concurrency or intensity info in the pools section doesnt work (mines at i=8). setting it below to 18 works for x11, but have yet to see if that will translate safely to x13 |
|
|
|
i am wondering how much power the S3 will use on the server style power supplies anyone check the power usage on these? the cheap ones. i just wanna know it worth paying more for a gold or plat.
^depends. If you can do server gear for <1/2 the cost of a gold supply its worth it IMO. But if you can get a good deal on an ATX supply it might be a better long-term investment |
|
|
|
why does it tell me that it wont connect to the pool?
"poolname" : "NiceHash-X13",
"url" : "stratum.nicehash.com:3337",
"user" : "1D75BgAientKNn8JbvxFifALmEENQK5Ztj",
"pass" : "x"
Try "url" : "stratum+tcp://stratum.nicehash.com:3337", oddly, this works: "pools" : [ { "poolname" : "NiceHash-X13", "url" : "stratum.nicehash.com:4337", "user" : "1D75BgAientKNn8JbvxFifALmEENQK5Ztj", "pass" : "x" } BUT I cant get this to work: { "pools" : [ { "poolname" : "NiceHash-X11", "url" : "stratum.nicehash.com:4336", "user" : "1D75BgAientKNn8JbvxFifALmEENQK5Ztj", "pass" : "x", "pool-kernel" : "darkcoin-mod", "pool-intensity" : 17, "pool-thread-concurrency" : "8192" }, { "poolname" : "NiceHash-X13", "url" : "stratum.nicehash.com:4337", "user" : "1D75BgAientKNn8JbvxFifALmEENQK5Ztj", "pass" : "x", "pool-kernel" : "marucoin-mod", "pool-intensity" : "13", "pool-thread-concurrency" : "8192" } without it spitting out all rejects and hashrates of ~13kh I really want to be able to have it switching between x11/x13, but at least the x13 4337 server operates on its own (still no luck on 3337 for whatever reason?) PS: its a quad R9 270X rig |
|
|
|
|
why does it tell me that it wont connect to the pool?
"poolname" : "NiceHash-X13",
"url" : "stratum.nicehash.com:3337",
"user" : "1D75BgAientKNn8JbvxFifALmEENQK5Ztj",
"pass" : "x"
|
|
|
|
Any quotes for Wholesale/Batch/Reseller Buys?
I was told purchases over 10TH may see small discounts of around 5% hoping these guys can keep ahead of bitmain pricing (they have to since they use 50% more power), I ordered a pair of units yesterday and am looking forwards to building a farm with btcgarden equipment if the price and qaulity are good |
|
|
|
So what's happening with crypto-trade? Another scam?
they went down for maintenance - the site is back up and flashier looking then ever now |
|
|
|
|
Show Posts
