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Author Topic: HashFast announces specs for new ASIC: 400GH/s  (Read 865423 times)
perezoso
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December 28, 2013, 05:41:35 PM
 #5381

I have to admit that 800GH/chip, if stable, would be impressive to say at least. I wonder how the sierra is supposed to dissipiate 3kW of heat in its 4U. Not even recent and ultra high density datacenters can handle 30kW/rack.

The Sierra is sold as 1.2 TH/s unit not a 3 chip unit.   IF (and I haven't seen any convincing evidence) they are doing 600 GH/s+ they could drop the Sierra to two modules and just keep the extra hashing power for themselves.  Does anyone think that is unlikely given all the other ways they have screwed over customers so far?

It's this kind of question that causes me to despair at the situation.  Hashfast's customers, having been offered the opportunity to work together on issues like this (since we now know who all the B1 customers are), instead seem 300% determined to behave like a herd of cats, each off doing their own crazy thing.

A more united front would probably force them to include the full module set, but crazy wingnuts that we are, off living our own fantasies, it leaves the door open for them to continue abuses.
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perezoso
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December 28, 2013, 05:45:01 PM
 #5382

Have we gotten an estimate of the power yet.

The eligius reporting 1200GH/s is freaking me out a little ...  
I may have to backtrack on my negativism with HF over the last couple of days.

that will DEFINITELY wont be one BJ


Outside chance it's a BJ with two modules.

In fact, thinking, that makes sense to me.  They've gotta be sure the upgrade kit will work before shipping the BJ box. So test the BJ with two boards and the shipping power supplies, etc.
cedivad
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December 28, 2013, 06:44:13 PM
 #5383



Spoiler Alert: this picture has nothing to do with this hashfast.

My anger against what is wrong in the Bitcoin community is productive:
Bitcointa.lk - Replace "Bitcointalk.org" with "Bitcointa.lk" in this url to see how this page looks like on a proper forum (Announcement Thread)
Hashfast.org - Wiki for screwed customers
dhenson
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December 28, 2013, 06:53:37 PM
 #5384

Outside chance it's a BJ with two modules.

In fact, thinking, that makes sense to me.  They've gotta be sure the upgrade kit will work before shipping the BJ box. So test the BJ with two boards and the shipping power supplies, etc.

Your being way to optimistic. Their target hashrate for a Sierra is 1.2TH so it appears to me to be a slightly under-performing Sierra.  Considering where they are in the tuning phase, this would make sense.
jjiimm_64
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December 28, 2013, 07:06:35 PM
 #5385

Outside chance it's a BJ with two modules.

In fact, thinking, that makes sense to me.  They've gotta be sure the upgrade kit will work before shipping the BJ box. So test the BJ with two boards and the shipping power supplies, etc.

Your being way to optimistic. Their target hashrate for a Sierra is 1.2TH so it appears to me to be a slightly under-performing Sierra.  Considering where they are in the tuning phase, this would make sense.

i disagree...  we were at easy 700 with one chip..  the sierra will be at 1900 - 2100

1jimbitm6hAKTjKX4qurCNQubbnk2YsFw
cedivad
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December 28, 2013, 07:17:23 PM
 #5386

Thanks, now we know their yield per wafer is around 110Th/s
I'm terribly sorry that i made you lose the time needed to write all of that, but that is Cointerra chip, not Hashfast's one. I wanted to post it here to remember everyone that the competition isn't waiting for HF to tell us whatever that stats are for a BJ or a Sierra or whatever.

My anger against what is wrong in the Bitcoin community is productive:
Bitcointa.lk - Replace "Bitcointalk.org" with "Bitcointa.lk" in this url to see how this page looks like on a proper forum (Announcement Thread)
Hashfast.org - Wiki for screwed customers
ImI
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December 28, 2013, 07:22:27 PM
 #5387

Thanks, now we know their yield per wafer is around 110Th/s
I'm terribly sorry that i made you lose the time needed to write all of that, but that is Cointerra chip, not Hashfast's one. I wanted to post it here to remember everyone that the competition isn't waiting for HF to tell us whatever that stats are for a BJ or a Sierra or whatever.

There goes my model Sad

I had a unit from them too for jan but requested a refund Sad



why?
cedivad
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December 28, 2013, 07:37:17 PM
 #5388

So, standing to their story, this PSU is doing at least 1200W at 12V:
http://eligius.st/~gateway/sites/default/files/Baby-Jet.jpg

Is that even possible? (gonna search for some datasheets)...

My anger against what is wrong in the Bitcoin community is productive:
Bitcointa.lk - Replace "Bitcointalk.org" with "Bitcointa.lk" in this url to see how this page looks like on a proper forum (Announcement Thread)
Hashfast.org - Wiki for screwed customers
dhenson
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December 28, 2013, 07:39:11 PM
 #5389

i disagree...  we were at easy 700 with one chip..  the sierra will be at 1900 - 2100


If we knew that a) that was actually 1 module and b) Eligius stats weren't skewed at the time then Yes, you would be correct.

However.  We don't have confirmation of either. In fact their own Twitter post admitted to messed up stats and a lower estimated hashrate.

Honestly not trying to be a downer here.
jspielberg
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December 28, 2013, 07:53:36 PM
 #5390

There is quite a bit of chum in the water right now.

Hopefully HF will soon provide more details about the test rig.  I.e. how many GN1 chips... what power supply and system draw.  Also performance on another pool would be helpful to compare against Eligius. 

All I can say... if the machine is detecting as 1.2TH/s with 1 chip at eligius... I think I can speak for all of B1 to say we will be mining at Eligius Smiley

dhenson
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December 28, 2013, 08:01:25 PM
 #5391

What makes no since whatsoever to me is that they should KNOW what the hashrate is.  It will tell them in CGMiner.  All of this "Ecstatic over 700GH performance" then "Think we are really around 400-500" just shows that whomever is posting to the Twitter feed doesn't really have a deep grasp of the situation.

In other words, we still don't have any information coming out of Hashfast.
paranoidx
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December 28, 2013, 08:02:37 PM
 #5392

So I mine at eligius.
My KNC Jupiter gives me an average of about 540 gh/s.
I checked my graphs about 3 hours ago and it showed that my miner was down for 2 hours which brought my 12 hour average down to something like 460 gh/s.  At the time when I was checking my stats it showed my miner was mining at 680 gh/s.  I just checked it now and it seems to be regulating.  My 12 hour average is up to 530 gh/s and my current 128 sec average is at 630 gh/s.

So basing this off of my stats, if they were getting 700+ at one point, then the chip is more realistically mining at ~600 gh/s.
minternj
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December 28, 2013, 08:05:02 PM
 #5393

https://twitter.com/HashFast/status/417022058908770304
"Tests came out very well tonight. Production has been given the go-ahead!"


Warning about Nitrogensports.eu
https://bitcointalk.org/index.php?topic=709114.0
cedivad
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December 28, 2013, 08:13:43 PM
 #5394


My anger against what is wrong in the Bitcoin community is productive:
Bitcointa.lk - Replace "Bitcointalk.org" with "Bitcointa.lk" in this url to see how this page looks like on a proper forum (Announcement Thread)
Hashfast.org - Wiki for screwed customers
cedivad
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December 28, 2013, 08:16:22 PM
 #5395

https://twitter.com/HashFast/status/417022058908770304
"Tests came out very well tonight. Production has been given the go-ahead!"

What night are they talking about since that they are in the pacific side of the USA? (this bothers me since the beginning of their chip updates)

My anger against what is wrong in the Bitcoin community is productive:
Bitcointa.lk - Replace "Bitcointalk.org" with "Bitcointa.lk" in this url to see how this page looks like on a proper forum (Announcement Thread)
Hashfast.org - Wiki for screwed customers
klondike_bar
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December 28, 2013, 08:29:19 PM
 #5396



dont forget that the waterblock pump + fans probably draw another 20-50W

24" PCI-E cables with 16AWG wires and stripped ends - great for server PSU mods, best prices https://bitcointalk.org/index.php?topic=563461 also selling 6" M-F-M PCIe splitters and PCIe-PCIe
No longer a wannabe - now an ASIC owner!
MrTeal
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December 28, 2013, 08:36:21 PM
 #5397

Why are you assuming that 1.2TH/s is one BJ?
cedivad
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December 28, 2013, 08:39:35 PM
 #5398

Because they told us so.

-Instigate your customers to suppose what you want to tell but can't
-Don't deny it
-Win

It looks like that everyone in this thread is sure that a single board does 800GH+. They told us that the 1200GH is a single BJ, so why we shouldn't believe them? I'm so tired of this...

My anger against what is wrong in the Bitcoin community is productive:
Bitcointa.lk - Replace "Bitcointalk.org" with "Bitcointa.lk" in this url to see how this page looks like on a proper forum (Announcement Thread)
Hashfast.org - Wiki for screwed customers
jjiimm_64
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December 28, 2013, 08:43:48 PM
 #5399

i disagree...  we were at easy 700 with one chip..  the sierra will be at 1900 - 2100


If we knew that a) that was actually 1 module and b) Eligius stats weren't skewed at the time then Yes, you would be correct.

However.  We don't have confirmation of either. In fact their own Twitter post admitted to messed up stats and a lower estimated hashrate.

Honestly not trying to be a downer here.

you are correct......  guess i started drinking the koolaid.  the HF coolaid!

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jjiimm_64
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December 28, 2013, 08:45:03 PM
 #5400

Because they told us so.

-Instigate your customers to suppose what you want to tell but can't
-Don't deny it
-Win

It looks like that everyone in this thread is sure that a single board does 800GH+. They told us that the 1200GH is a single BJ, so why we shouldn't believe them? I'm so tired of this...

not 800 here..... my money is on 700

1jimbitm6hAKTjKX4qurCNQubbnk2YsFw
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