Cut off for the GB is the 28th, but when would shipping begin? Might be interested in picking up a few.
When we'll be close to the 200 mark, we'll contact the customers with a product page for the GB. Shipping will be within 24 hours of payment. are there reselling restrictions on GB participants? |
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Dang! Missed the sale too. Bitmain - how about opening up another short sale so I can get an order in before the new year?
Probably all the better. First batch sometimes has a problem. Better to get the second batch after the problems have been discovered and fixed. 7 days is too short a time to fix anything. |
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The best way to make money on SP20 was by waiting.
I got one for $814 a week ago (paid maybe 10 days ago), then there was a "christmas" deal few days later for $633 and a couple of days later-a new deal for $500
I expected just to breakeven at best all things considered, but these movements were nothing short of astonishing in speed.
Besides, miner did NOT make $314 in those 7-10 days-barely $100 (even with four days of extra profit due to paycoin rush)
Nevertheless, $500 looks like a good price now, so I am not complaining, maybe will even participate.
My point is this: I am OK with declining prices based on what usually happens (difficulty, product aging, etc), I am less OK with an extraordinary profit margin when as a miner I expect just to breakeven at best-but it is up to Spondoolies, of course, how to market their admittedly good device.
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Can anybody on the new 2.5.54 firmware confirm if it includes the extranonce.subscribe patch?
just upgraded, yes it includes the ex-n-sub. Great, thank you! Upgrading now.. it's up to 2.5.57 now, but I am not sure whether only 2.5.54 has the extra nonce. |
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only ~$40 per unit shipping UPS to US if you order three.
$84.66 for 2 x S5 to FL, USA...  ZiG yep, the more you order, the less you pay per unit for shipping. I priced in 6 units, then they are ~$27-28 each shipping, but would like to see if these are reliable. |
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The S5 does have a clear advantage for some people. The fan noise. Some just can't deal with the SP20 noise.
Do we independent or factual noise figures for the S5? SP20's underclocked are rather quiet. I do agree the noise levels are high if you live near the equator. That's my current decision making issue between the sp20 and S5. I'm hoping to get some details on noise prior to year end so I can make some tax write-off purchases. Hopefully when this 'fluid' period is over we will have a price and info that will make them the hands down choice (personally I want it to be a no-brainer). Right now comparing batches to batches, the sp20 has them beat by about $600 for the same hashing, not counting the free shipping. I'm rooting for BM. I've had the S1, S3, S4, U1 & U2. Liked them all, but the sp20 does look enticing and gets solid reviews. manufacturers almost never talk about noise straight. Besides, people have situations that differ: many have basements or sheds, which makes it much less relevant. |
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@raskul Let us look into what we can do for the projection... If you have your projection, would you please share with us? (Here is fine!) We'd love to see how our customers see ROI Projections. Its all speculation as none of us at Bitmain has a crystal ball  If you have one for sale and if it cooks me breakfast and make me some tea, too, let me know!!! love to have one Here's my quick and dirty projection: 1155gh/s currently returns an expected .0147btc per day. Assume no diff change then 90 day return would be 1.323btc. At current rates that's $436 including psu. Thermalake is the cheapest PSU I currently see for $67. That would make the S5 cost should be $369 to break-even in 90 days with 'free' electricity. Any value to sell or mine with after that would be used to offset electricity costs and profit. So basically if it can't gross it's cost in 90 days, I don't expect it to ever ROI. This is being rather liberal since diff will change and most have to pay something for electricity. I also don't take into account changes in btc price as if it changes, buy and hold makes more sense. buy and hold: 1. bores me to tears-I have much more fun trading stocks on a stock market, so mining is clearly more fun. 2. mining is a stretched out affair, essentially you also buy and hold if you are covering your miner and electricity cost with $$, but accumulate bitcoin. You get much better averaging by mining vs buying in lump sums. |
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my brothers are back!
or is it bitmain or other producer that hit the switch?
Estimated Next Difficulty: 37,864,384,817 (-4.04%)
8:59 AM
Tuesday, December 23, 2014
Beijing Time (CST) +0800 UTC
i think they hit it!
they burn in S5 before shipping-my take, which makes it ~20-30PH of S5=15-20K machines  ? |
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However, SP20 is a known performer, while quality of S5 is unknown, but I expect it to be good.
What makes you expect that?.. it's just probability...S1 was good, S3 was good (for me); S5 seems to be more like S1. S2 was not great, but not bad. S4-did not buy because of power supply problem in batch 1. The caution for me is in the chains while in SP20 you can regulate chips voltage-very neat. I got one, will buy more SP20, S5 or both-will decide soon. |
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I see only one thing with the S5 .. having chained chips to drop the voltage, you either run the whole chain or you stop the whole chain.
I'm praying for you guys, that, if you buy one or more of those .. "let the chips be all good!" .. and "Good Luck!" in tweaking the chain voltages.
How many chips are in each chain? the whole board (30 chips?) or less? |
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The efficiency curve:
>snipped image<
The lowest setting 0.58V is very unstable, usually half of the loops are disabled. At 0.59V I can achieve 809 GH with barely 376W at wall (0.465W/GH), and at 0.61V, I get 1TH with 500W, also feels great. The efficiency drops almost linearly across the voltage range, I did not test above 0.68V, which consumes around 950W
the curve was with what fan settings? 80-90 or lower? fan settings would affect efficiency. Obviously, you want fan settings to be as low as possible while maintaining working temp (<115C) |
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Shipping cost can do difference on small quantities and heavy weight parcel (no one read spec on S5 weight??), distance apart , if the next purchase will not be an "Ant"
TL;DR S5 is 3.5 kg in weight (~8lb+1-2lb for box=~10lb probably the whole package) vs 5kg for S3 (13 lb with box) |
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Meh.
I'm still irritated with the S3 -> S3+ debacle, and the S3 firmware still being broken such that the #$*@#!nG alarm still goes off when the pool goes dead - ignoring the checkbox setting in the webGUI to disable the alarm. Woke me up at 3am in the morning last night.
really wasn't a 'debacle' .. it's just that most people didn't know what to do to prep hardware to get a good over-clock. my original s3 units are still hashing over 500g/hs. i never had the alarm issue because i placed a piece of electrical tape over the speakers. I agree..what debacle? My batch 1 S3(s) worked like a horse for 5 mo before I sold them for a very decent price. With later software it beeped much less, later units did not beep at all, unless they lost internet connection for a few minutes. |
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The S5 does have a clear advantage for some people. The fan noise. Some just can't deal with the SP20 noise.
I can stand SP20 (fan 50, 1350-1360 gh) when I am 20 feet away (not in the same room), with a caveat that I did not try fan at 20 yet, but would have to either create a noise reducing solution or cannot expand/buy more. Hacking the setting of fan to 15 maybe another route. |
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finally found a few hours to tinker with the miners i have at home
note: these values are not metered at the wall, as I do not have a meter to test exactly... so w/gh is estimated as per the stats page, so there will be some PSU loss, and you can divide by 0.92 to get a more accurate power draw.
SP20: ~ 1060GH/s
>snipped images<
looks great. what is your starting and max chip voltage settings? |
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Estimated Next Difficulty: 37,460,709,208 (-5.06%) WAW!  Keep in mind that this is based on the last X blocks - not sure how big X is but quite sure at this moment it still includes the peak of XPY mining. This will fall off in a few days, so there is going to be bump up, question is - how much exactly. I believe it is 504 or ¼ of the 2016 in the adjustment. If so We still had pressure up to sat so 3 days after sat is tues. We should see big gains well 2-4 % and since we are 4.5% neg we may get back to -1% by late tues or early weds. we will surge up in the next 3 days for sure for reason that OP posted (burn in), so you are right, we might get to par or -1%. next one will be at least +3-5% |
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PROS:
- same great design
- terrific efficiency in new chip
- good efficiency gains by running chips in series without dc/dc regulators
- at lower voltage these chips are perhaps the most efficient on the market right now (spondoolies can reach about the same values when drastically underclocked)
CONS:
- Price: shipping still is not included, and compared with offers like the spondoolies 3xSP20 microfarm (which can underclock to around 1TH/550W per unit) its not an obvious winner
-underclocking: chip voltage cannot be adjusted via settings like with the S3+/S4. instead, a lower supply voltage is necessary, which is not easily achieved without buying a dedicated 9V, 250W PSU per antminer in a few months from now.
it looks nice, but right now its not competitive enough with the SP20 units which have been dropping in price crazily (down to $0.31/GH at full speed, or ~0.45/GH at more efficient clockrates). Hopefully we see an option with better undervolting abilities or a S6 at 4TH/1.2kW
Well, IF Spond would give us $533 per machine for smaller # of units (as in large farm order), then S5 and SP20 would be roughly at par in cost/performance. I assume that shipping would be $70 for S5. However, SP20 is a known performer, while quality of S5 is unknown, but I expect it to be good. For me-I either have to find a solution to SP20 noise or I cannot expand with it at home due to family complaints (I wish i can set up a shed or something-but cannot). SP20 has the reading of 69dB in front at 1ft distance at fan setting 50 (which produces 1.35Th at ~800W). Running SP20 at hacked fan settings (550-600W and 1000-1100Gh) is possible, but greatly reduces production, so it is at least something to think about. Re 9V-I look for a short time, but I haven't seen 9V >4A A PSU on amazon. Maybe they exist at 10A, but you have to dig in. |
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Is there no easy way to see the total combined luck for a time period? My windows monitoring app shows it (see my sig). As of now Eligius is at: 10 blocks: 67.48% 12 hours: 31.29% 24 hours: 35.28% 7 days: 88.6% 30 days: 89.64% 90 days: 96.79% M I had NEVER seen luck fluctuating above 100% over 30 or 90 days. Have you seen it? If it is pure statistics, this should be symmetrical, isn't it? |
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yes but i was not a legendary so i havent asked
but
some of hero members got it.
i wonder what decides about this.
philipma should get free unit for his reviews too.
With the efforts of the legends tests my tests and sp techs new firmware. I now have 6 units running at 500-510 watts each and about 1030 gh each for a total of 3060 watts and 6200gh . Under 0.49 watts a gh. A fan at 12 and 5 fans at 15 via ssh. phil, would you care to post settings for 500-510W in your "unofficial" forum or main spond forum, please. |
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I see a large variation in btc accrued vs work done in the last few weeks.
Examples:
Just on one worker
12/4-12/11-0.23 BTC paid instead of ~0.4 expected at 0.058/day that your statistics shows (0.17 BTC missing or 42%)
12/15-12/21-0.25 BTC accrued (not paid yet), but ~0.34-35 was expected (0.1 BTC missing or 29%)
You cannot attribute bad luck to weeks and weeks of work.
I "lost" 0.27 BTC of legitimate revenue in the last 17 days just counting one worker
What is going on Eligius?
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