Was Batch 4 always Aug 7th for ship date? I could have sworn bitmaintech.com showed Aug 5th yesterday. Can anyone confirm the shipment date of batch 4?
look closer. Batch 4-by Aug 2 Bath 5-Aug 7 |
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 LOL , I thought you need to be 13 yo to register LOL...I follow "happy wife, happy life" routine. It has been working so far. |
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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.
All residential in US has 240V but split in 2 phases. This is true even for apartment buildings. Most of the stoves and driers run on 240V, so please .. almost everyone in North America has a 240V service. As for the disclosed hashrate, they disclosed one, together with the conditions to get it. It's not their fault you live where you live or you host it where you find some decent rackspace without asking about the power requirements. It's funny that you talk about stoves and driers...at least in my household, I was told to stay clear of these two...they are sacred . |
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I actually did this mod for all of my S1s and saw a 1GH inprovement across each unit. I have enough for one unit coming in on Monday so I'll go ahead and try it myself to verify. The part you are looking for are the eight grey square "blocks" above the heat sink. There were only four-per-blade on the S1 https://i.imgur.com/RkuPkLy.jpgThe layout of the S3 board seems to allow for a single long heat sink to cover all of the dc-dc converters? The S1 layout had caps in between preventing the use of a single large heat sink. I bet the larger surface area will work much better than the smaller individual heat sinks. Anyone know where to find something that will fit, and how to properly attach? This is a terrific idea. I can check our old stocks and find some perfectly straight/flat heat sinks from old server video cards. I have some dual-head Quadros in mind that I might be able to cut up easily. Either way won't be able to test until Monday. My fiancée will kill me if I head back in this weekend. Definitely not on call. Anyone know a good source for 3M thermal adhesive strips? Looking forward to seeing this with a stripe across the 8 of them. Yes, this is great design if it works. In S2 bitmain figured out to incorporate a steel plate in latest batch. I think that that steel plate helped in heat distribution as well (apart from structural integrity). I doubt that they can incorporate such heat sink in their design at this stage, but who knows. Edit: they (Bitmain) can probably use this at a minimal cost ($0.3/piece): http://www.alibaba.com/product-detail/led-strip-aluminium-heat-sink_1996606714.html |
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Ugh. 10 hours in and Ant1 fell to 411Gh at 218 and Ant2 fell below 400Gh as expected. I wish Bitmaintech would include an option to auto-restart in the firmware. Thinking about creating a small cronjob to do just that...
Same here. After a reboot, they start hashig to specs, the longer the run, the slower they get. Both on web Interface and pool. Not temperature related. Strangely sometimes i have to reboot them several times to get them working good. Seems i need to hit some sweet spot with reboot or they are slow. Exactly this. No errors on the asics but have to restart a few times at stock frequencies to get anything above 400gh. I've seen behavior like this with Coincraft blade chips missing cores upon cgminer restart, but they added the HW clear flag to fight that. Yes, I noticed that sometimes they go down, but not on all machines. i have one that is very steady at ~441 at default. Question: did someone tried to put heatsinks on R47 DC-DC converter? Was it effective? Where do you buy them? |
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why didn't you take the 7.7 refund from Bitmaintech?
wanted to keep some, no such option was available |
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I have four available (0.05775 ea, fair value 0.075) and additional two for closer to fair value.
Let me know
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This thermal paste has "only" Thermal conductivity (W/mK): 8.5
I have seen some thermal plates in our Office with 220w/mk
I think, as soon as I have my S3 I will replace the original paste with those ...
be sure it is not electricity conductive .. i been using this geld extreme for my cpus and gpus has worked well .. it is pretty much policy for me to replace stock thermal paste .. when i bring down my S1's i will open one them and have a look under that big heat sink .. i just did not want to take the time away from mining to mess with it before .. i am basically replacing my S1 farm with S3's so i will have some time to look at them now .. any opinion on AS5 vs ceramique? i ordered AS5 from Amazon, but have no patience to wait-will run to microcenter. i think that I have one asic with no properly applied compound as it always falls to X at 225 and 237. It could be something else, but i think that it is heating because it performs fine at 218.75 |
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Firm price, four available. For four coupons you'll get the benefit of $41.75 and I will recoup my cost.
You send me BTC, I release the coupon to bitmain ID after ~7 confirmations.
still have coupons |
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Note to underperforming S3 owners:
I have one S3 that was underperforming at ~420 Gh, i tried to 'boost" it up by moving to 225mhz-no change, but no high errors either.
So, i flashed with todays firmware-and it jumped to 455-457Gh, WU 6450-6470
Conclusion: NEW firmware is beneficial to at least some underperforming ants
allright, Bitmain! Thanks
What does "WU 6450-6470" stand for? WU: The Work Utility defined as the number of diff1 shares work / minute This is basically what determines your pool shares, hence the payment: higher WU=higher payout all other things being equal. |
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Note to underperforming S3 owners:
I have one S3 that was underperforming at ~420 Gh, i tried to 'boost" it up by moving to 225mhz-no change, but no high errors either.
So, i flashed with todays firmware-and it jumped to 455-457Gh, WU 6450-6470
Conclusion: NEW firmware is beneficial to at least some underperforming ants
allright, Bitmain! Thanks
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Shipping is included. I prefer DHL over UPS. You have a choice.
Just put down for two more on batch 5. I bet Bitmain is betting on another few rounds of low difficulty jumps to justify the slight decrease in price between batches. Judging by how much of the network they can control when they batch test, I'm going to bet the price is probably in line with expected network growth.
It all depends on how you calculate your ROI. If you have a bunch of equipment that's already paid for itself, you can choose to calculate that hash towards your most recent purchase and write off the hardware much sooner. Much easier to calculate any gains down the road that way.
...it also might involve a little bit of lying to yourself too, but trust me it's much more fun this way.
Are there special procedures for ordering? What am I missing here? special procedures: 1. get/have BTC 2. go to bitmaintech.com, make an account 3. login 4. order 5. start to write "are we there yet" type messages on BTCTalk-I wrote a few myself. |
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Hi, I just received my s3 last night and I think I already broke one of them  looks there is only one Red light on no fans spinning and no connection this happened after I tried to install the firmware, What can I do ? try to reset to default by powering it on and pushing into the hole to the right of green and red lights with a larger paper clip end (for 5-10 sec). |
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Is there a way to shut down S3 from the web gui or from ssh (not reboot)like "shutdown -h now" command for s2?
I tried it before with s1 and it did not work, apparently.
I ssh in and do 'poweroff -d 3' to power off in 3 seconds. Do 'poweroff --help' to get the full syntax as there are other options. great, thanks |
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How safe is it to power one blade with a power supply while powering the other blade with another one?
when i did this on S1, pcie connectors produced a spark, which is not good for electronics in general i meant if you already have one blade under power as far as powering one side with one powersupply and other side with a second one-it is possible as long as you orient them correctly |
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Is there a way to shut down S3 from the web gui or from ssh (not reboot)like "shutdown -h now" command for s2?
I tried it before with s1 and it did not work, apparently.
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Firm price, four available. For four coupons you'll get the benefit of $41.75 and I will recoup my cost.
You send me BTC, I release the coupon to bitmain ID after ~7 confirmations.
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Hey, have anyone a coupon for me. That's would great. Please send me a PM.  ID Kidprodigy Four coupons are available to anyone who wants them for 0.05775 BTC each (nominal amount, no profit for me). With 4 coupons you save ~$41.75 |
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Here are my 2 hashing away! both are sitting around mid 40's in 30c room! not as bad as I first thought! One is better than the other! I've OC'd this one, it ran at 420avg at 218 but 461avg at 237! http://i61.tinypic.com/2802khd.jpgThe other is still pretty good! runs at 420 at 218 but doesn't OC well and only hits 430 when OC'd to 237! http://i59.tinypic.com/2ivky0x.jpgBoth units are quite loud due to the fans trying to keep them warm in the ambient temps but it's not unbearable! units themselves don't feel hot and the cables aren't even slightly warm to touch! good, but they stabilize slow. the results might be different in 24hr. one of mine accelerated well, but developed a stuck asic with a "-" in 24-36hr I start to gravitate more to a position that overworking them at higher speed might result in earlier demise, so to speak. i don't care that much about 5% extra Time will tell. |
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...
If each chip pulls double the wattage that it was supposed to, do you think they made sure that the copper layers in the PCB can handle the extra load? Can the rest of the components handle the extra load?
...
Please avoid rumors and speculations. We'll release all the information in few days. Let us complete testing and firmware tuning. I can share that we have stable systems (plural) in our labs. There is not PCB issue, etc. We've designed with enough headroom. We'll ship the orders on time. I can also share that we're zeroing on the issue and it's a TSMC production issue. Future batches (October) will meet our desired spec. Guy I don't think that posting snippets like this is fair to those of us who want to see the whole picture first before voicing our opinion AFTER learning about all facts and remedies. But, ahem, this is just my opinion. |
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