Topic: HashFast announces specs for new ASIC: 400GH/s - page 505. (Read 880461 times)

3 days after due delivery start.

well, the only options were BTC or bank transfer. I'm assuming most people did option 1, BTC.

right if you payed in BTC.

otherwise not predictable or do you know the future price of BTC?

And with that, all your customers just lost any possible chance of a positive ROI...

BitFury had a delay, informed the investors about.

KNC had a delay, did not inform about or to late.

HashFast is having a delay, informed the investors in very professional way with deep details about.

CoinTerra will have a delay or has already a delay regarding TapeOut.

HashFast is the only company which have a MPP.

EDIT: OK, CoinTerra has something with 20%.

https://cointerra.zendesk.com/hc/en-us

Well so the predictions were not even close 

When is the MPP going to start counting, on 1st of november or when we receive the units ?

If first batch is shipping in mid november, when is going to be shipping the 2 batch babyjets and the upgrades ? 

I suppose you are going to leave some time between them, because if not anyone who buyed a sierra in sales time is just with x3 hashing power at the same time and all first batch customers got f***ed.

What about hosting ?

Any compensation for this delay ?


Really dissapointed with 2 weeks delay if everything goes as planed....

TL;DR:  "Once the substrates arrive, we can place the silicon and finish production. Our updated estimate is that the rigs will begin shipping in mid-November."

Hi all,

We have posted a new blog regarding updated shipping news: https://hashfast.com/?p=2445&preview=true.

Cheers,

HashFast Team

Lowered Expectations

about 8 days left until they are considered late

I am also still waiting

Where is our update?
I'm tired of this bs.

You, on the other hand, are just adding noise.
I'm certain you consult Wikipedia to learn which end of the hammer to smash your thumb with.
I'd rather watch luridly colored ponies than read your self-important droning about shit you knows nothing of.  

Next time you feel the urge to play the pedagogue & repeat for the Nth time the power handling of a 6 pin PCI E connector, with all the associated arithmetic, consider further investing in Hashfast instead, pl0x.

Yeah agreed on all points.  Of course it has all been stated upthread but certain people are just here to troll.  


crumbs was under the belief that using warmed cased air would somehow cause power supplies to fail.  It was pointed out they are DESIGNED to be used that way but facts tend to not work when people don't want to know.

Regarding the orientation of the PSU.  It is possible they can be flipped.  For non-rackmount conditions (or single open side rack) as pictured is optimal.   In datacenter environment flipping the PSU 180 deg would intake from the case and exhaust out the back (to hot aisle).

Like you I see nothing "wrong" with HashFast design.   It is a compromise between optimal design and speed of poduction.   Could one use high density server PSU (straight through airflow vs 90 deg in ATX style), a very high capacity back mounted radiator, custom pump, custom reservoir, custom wiring harness which results in perfect front to back airflow?  Of course they could.  It also quintupled the number of suppliers, the number of assembly steps and the number of potential places which can cause delays or failures.

Sometimes "realistically good" design using off the shelf components beats ridiculously optimized custom solution especially when production time is so sensitive.


Still it would be nice if HashFast can comment/clarify on the PSU orientation.  Despite what was stated off thread I highly doubt that the PSU are custom designed for reverse airflow.   It would be pointless, expensive, and time consuming.  Hashfast went out their way to use off the shelf components for everything else.  To then use some pointlessly expensive reverse airflow PSU makes absolutely no sense.   It has never been stated by Hashfast, it is almost certainly not correct but it explicitly clarified I am sure a certain troll will spam another 100 posts about it.

Hi again, thanks for taking the time for a detailed answer.  I agree that there's nothing intrinsically broken about that case design, it's just so ... ghetto.  Put yourself in my shoes:  Follow a link from Hashfast account to a Hashfast PR article, about partnering up with Seasonic & what an honor it is yadda yadda ... "unsurpassed voltage stability" ... "over three decades..." -- you get the gist.

After all that fanfare, the least i'd expect would be a nice PS without a 24 pin connector/ a paperclip jumping green to ground.
Instead i get *two* of them.  Way to partner up, Hashfast

I'm not saying the thing has to win Concours d'Elegance, but it would be nice if *some* thought went into design.  They've abandoned the 2U case idea (IceDrill is already blaming the change for causing delays), and now, with a huge 4U empty box, *THIS* is the most graceful layout they come up with?

Couldn't think of a way to let hot air outside of the case, instead of stuffing it in?
And had to vent through the sides of the case, to boot?

Finally, twin power supplies to feed 3 ASICs?  Why not a single power supply to feed 2 ASICs?
Or a power distribution sub board for all the rail bridging & power switching?  How hard is that?  A single layer PC board with some standard connectors?  With Seasonic as a partner, i think that's within reach.  Excelsior!!1!

Non of this is meant to contradict you in any way, btw.  Maybe i'm just neurotic about this stuff.
And again, sincere thanks for your time.

Thanks Erin, looking forward to that official announcement later today. As you might have noticed this thread is becoming more trollish by the day, so we could really use some concrete progress updates in here.

There shouldn't be any real issues with paralleling the power supplies, especially if they're the same series. It really isn't that much different that paralleling phases in a polyphase supply. The biggest problem you will likely run into is one power supply will be getting them to share the current equally. Paralleling the rails of a multi-rail design likewise isn't a big deal, I've done it myself feeding two different rails into the same GPU.
Getting custom cables made is more of a PITA to parallel things than you probably think it is though. It really is just easier to toss two PSUs in there.

Similarly, there's a huge difference in price and lead time with choosing the stock radiator dimensions that all the closed loop cooler vendors are using vs getting your own thinner and deeper one made. I really don't see an issue with their design, though I don't know why they don't just mount the intake for the PSUs on the inside and then exhaust through the back in typical fashion. Room temperature air has a typical heat capacity of ~34J/(ft^3*K) and a little manipulation gives ~1.75 °C*(ft^3/min)/W. Even if there were dumping 1200W into the case, it would only take ~200cfm to keep the air inside the case 10°C warmer than the outside air. That's well within the operating parameters of any half decent PSU.

hashrate is fungible, there is no difference between lots of small miners or fewer big ones. Its not one or the other causing your problem, its just that far too many people thought asic mining would be profitable, and therefore, it isnt. Its a zero sum game after all. With closed book preorders, this self defeating prophecy was predictable and predicted. Count yourself lucky though, with KnC you made the least worst 28nm choice;  you will not break even (bitcoin denominated) but you will be far better off than hashfast, cointerra and BFL customers.

I'm a KNC customer. Have had my Saturn churning at 280Gh/s since I received it last Friday. I do want to stay in the game and this is my first shot at BTC mining. Before ASIC's were around I procrastinated too much and never invested into GPU's. I guess I'm glad, since I'd be in the same boat I'm in today. Pretty soon I'll be making no profit at all. Is there a way to still make a profit for us small time miners out there? The whole system is being eaten up by monster gobblers grabbing all the hashing power leaving the weak behind. I always thought the bitcoin system/chain would split into two. One for miners under 500Gh/s (for us small time people) and then another chain for the big guys that can't get enough. Apparently you need to dump a whole lotta money into a miner if you plan on making a profit these days. And money is something I don't have a lot of. Most of it goes to my mortgage and paying the bills. Yea, I'm a grown up and have bills to pay. Even though my KNC Saturn has been working perfectly I'm very disappointed that KNC owner's are no where to be found. They don't even visit their own forums. We basically made a few guys really rich and they disappeared. I'm not sure why they even put up their own forums if especially if they weren't going to participate in them. Anyway, I guess I was looking for feedback or information if going with another company would be the wiser decision, but as it seems I answered my own question while writing this. I'll never break even on a miner I buy today if it's in the 500-900Gh/s range. Anything above that is questionable I guess. As the old saying goes, it takes money to make money. I spent $3897 (w/ shipping) on my Saturn and I doubt I'll see half of that come back to me. I also had a buy a PSU, which cost me a $150.

By the way, the Seasonic X series exhausts in the rear. I have multiple computers, all with Seasonic PSU's in them. They are the best power supplies made, and that's why even Corsair has Seasonic make some for them. Well, adios and have fun. I'll take my .5 BTC daily and hope to keep that up as long as I can.


By the way, these are VERY good power supplies also.
http://www.corsair.com/us/power-supply-units/rm-series-power-supply-units.html

O heck, who needs to know my opinion.

MrTeal, remember seeing your techy posts.  Question for you:

Do you see any potential problems with connecting two separate power supplies in parallel?  In other words, connecting the grounds together & the +12 together?   I'm not familiar with the regulation/protection circuits on ATX power supplies.  Pointers to schematics/datasheets etc. would help too. Thanks.

PS:  If you see no problem with bridging two power supplies, i assume you see no problems with bridging all 12V rails on any 1600W power supplies, either.  In which case, having custom cables made up seems much easier than some contrived reverse-flow fan mod (according to Cypherdoc, the PSs are exhausting air from the sides of the case, where a standard PS would draw it in).
Thanks for your time.