So I tried to buy 2 UAC3 for my 6 A821 and the shipping to Canada is "FedEx International Economy: $49.26 USD"
Sent you a request by email.
Topic: BLOKFORGE- Official Canaan Distributor - page 9. (Read 24515 times)
I saw the 821's are shipping now. Any word on controllers? I won't be able to do much with the miner until the controller arrives lol
i just got shipping notification for both the 821 and the avalon controller i ordered--so theyre in!
I saw the 821's are shipping now. Any word on controllers? I won't be able to do much with the miner until the controller arrives lol
Units are ready to ship, AUC3 cables were missing from each box. Canaan is overnighting us the cables, so they should be here tomorrow, sorry for delay even though still withing estimated ship window.
The latest word on customs & shipping?
They told me today they would be shipping wed/thurs/Friday this week
The latest word on customs & shipping?
I guess you can get away with the 1200w PSU when you underclock the 741s. I run mine at 0 or 1 and I'm hitting 1300w on my apw5.
Really none of you run the DPS1200's? (not the black connector ones, but the blue connector ones DPS-1200FA-1 A's) - These are the 94% Titanium rated ones and underclocking the 741 to -1, they run amazingly cool to the touch and I've yet to have a problem with them. In fact they came highly recommended. I would *never* run a 741 on a regular DSP-1200FA (the one without the the 1A), they run very HOT and are not 94% rated.
And for the record, I'm talking 240V not 120 (I would never run one on 120v on a 741)
Btw, normally i would agree with you on the head room in a power supply, but these server supplies reach their max efficiency in the upper percentage of use, in fact, they draw more watts at lower utilization as a function of their efficiency curves than they do at the upper range.
You can also get some 1400 PSU's that use the common slot... Maybe I'll have to look into those. I like the 1200's because they don't have a tiny turbine for a fan in them like the sorcerers (which I have but hate)
And for the record, I'm talking 240V not 120 (I would never run one on 120v on a 741)
Btw, normally i would agree with you on the head room in a power supply, but these server supplies reach their max efficiency in the upper percentage of use, in fact, they draw more watts at lower utilization as a function of their efficiency curves than they do at the upper range.
You can also get some 1400 PSU's that use the common slot... Maybe I'll have to look into those. I like the 1200's because they don't have a tiny turbine for a fan in them like the sorcerers (which I have but hate)
No matter what miner you're running, always have a bit of power left on the PSU. This'll increase efficiency as it puts the PSU near the peak of its efficiency curve, and the PSU will have some loads off its back. Server PSUs are made to run at such conditions, but I still like to leave a couple hundred watts unused.
For more specific efficiency curve information, searching (psu name here) efficiency curve should net you results on Google or whatever search engine you are using. As an example, this is the AWP3++ efficiency curve. Most of the time this saves just a couple % in terms of power usage, but over long periods of time you're saving hundreds of dollars.
https://shop.bitmain.com/productDetail.htm?pid=00020170627175024105t4k8SjM5067C
For more specific efficiency curve information, searching (psu name here) efficiency curve should net you results on Google or whatever search engine you are using. As an example, this is the AWP3++ efficiency curve. Most of the time this saves just a couple % in terms of power usage, but over long periods of time you're saving hundreds of dollars.
https://shop.bitmain.com/productDetail.htm?pid=00020170627175024105t4k8SjM5067C
I would say a 1300w or higher would be fine. 1200w power supply would be pushing it soley based off the fact that the 821 will most likely be maxing it out for sure on stock settings.
BF - any update on 821's through customs/shipping?
Just anxious is all
ps. anyone confirmed these will run on DPS1200 PSU? as in replacing 741's on that PSU?
Just anxious is all
ps. anyone confirmed these will run on DPS1200 PSU? as in replacing 741's on that PSU?
I would say if it does work it would be pushing it to the max. My 741's can push almost 1200 the way it is as a ramp up if hashing high.
At one point I had Avalon 741s running on 1000W EVGA GQ-G3s. (They came that way from the previous owner.) One of the G3s and one GQ were a little touchy, but amazingly they held up pretty good. No voltage drop, and hash rates as high as 8.3TH! I would NOT recommend this. I have been buying APW3++ supplies (currently running on 110v) and doubling up the old 1000W supplies on the Avalons.
The manufacturer spec for the miners is for the spec hash rate. Because the miner can have a higher hash rate than the spec, it can use more power. In my experience the EVGA supplies did very well with it. Your mileage may vary with the DPS1200. Like the previous guy said...you might be pushing it if you are lucky to have an over performing miner.
Also, you will typically get better efficiency loading a power supply to around 50-70% of its rated capacity. Two 1000w supplies should consume less power than one 1300w, etc.
BF - any update on 821's through customs/shipping?
Just anxious is all
ps. anyone confirmed these will run on DPS1200 PSU? as in replacing 741's on that PSU?
Just anxious is all
ps. anyone confirmed these will run on DPS1200 PSU? as in replacing 741's on that PSU?
I would say if it does work it would be pushing it to the max. My 741's can push almost 1200 the way it is as a ramp up if hashing high.
BF - any update on 821's through customs/shipping?
Just anxious is all
ps. anyone confirmed these will run on DPS1200 PSU? as in replacing 741's on that PSU?
Just anxious is all
ps. anyone confirmed these will run on DPS1200 PSU? as in replacing 741's on that PSU?
The A821 also uses the same AUC3 converter for the I2C communication, so the answer is yes.
CONFESSION: I didn't read back through all the pages of posts
Do we know that the 821's will run on the AUC3 spares that I have from 741s?
Do we know that the 821's will run on the AUC3 spares that I have from 741s?
Anyone have any update or hear anything when the controllers & early 821 orders are shipping? Should be soon no?
This batch will be shipping in the next few days, awaiting customs release...
Anyone have any update or hear anything when the controllers & early 821 orders are shipping? Should be soon no?
I see more stock for the AVALON 821 (SHIPPING 3/26-4/6) batches now. But... $2900? Is Canaan fucking high?? Bitcoin is basically at $6000 and they want to charge $2800 for 1 asic miner? Now it's getting a little ridiculous in pricing. I understand when miners are high when bitcoin is high, but this is just brain dead marketing now.
It's hilarious, at 10 cent power you're looking at an ROI of 25 months. I'll be a buyer at under $1k.
I see more stock for the AVALON 821 (SHIPPING 3/26-4/6) batches now. But... $2900? Is Canaan fucking high?? Bitcoin is basically at $6000 and they want to charge $2800 for 1 asic miner? Now it's getting a little ridiculous in pricing. I understand when miners are high when bitcoin is high, but this is just brain dead marketing now.
Unless Blokforge gets a rebate from Canaan/Avalon they already sunk in cost for these at those high prices. Would be nice if Canaan did a solid and gave everyone that bought a Feb batch a second one for free to make up for the big change in circumstances and give a rebate back of some $$$ to the March orders
I guess they would say that if Bitcoin went to $30k they would of been the ones losing out but not really.. they priced it pretty high to begin with for these batches. Was going to be near a year ROI even if Bitcoin stayed around $15k
Yea these prices are absurd. At the rate it's going, in a week it's going to cost basically 1 BTC for 1 asic miner. LOL. Canaan really needs to work on marketing. Unbelievable.
I see more stock for the AVALON 821 (SHIPPING 3/26-4/6) batches now. But... $2900? Is Canaan fucking high?? Bitcoin is basically at $6000 and they want to charge $2800 for 1 asic miner? Now it's getting a little ridiculous in pricing. I understand when miners are high when bitcoin is high, but this is just brain dead marketing now.
Unless Blokforge gets a rebate from Canaan/Avalon they already sunk in cost for these at those high prices. Would be nice if Canaan did a solid and gave everyone that bought a Feb batch a second one for free to make up for the big change in circumstances and give a rebate back of some $$$ to the March orders
I guess they would say that if Bitcoin went to $30k they would of been the ones losing out but not really.. they priced it pretty high to begin with for these batches. Was going to be near a year ROI even if Bitcoin stayed around $15k
Jump to: