Avalon ASIC users thread - page 220.

galambo

sr. member

Activity: 966

Merit: 311

Quote from: ngzhang on February 01, 2013, 10:20:54 PM

Chip's power consumption is <6.6W/Ghs

ATX power loses(82%), DC/DC power loses(87%), Fan(5~20w), etc…

So…

Yes, but those losses and loads were part of your power budget for 400 watts, correct? Don't be like Josh-- you were expecting less than 6.6 W/GH/s. Simulating the power performance of a chip like this is a lot more difficult problem than calculating how many watts you will need for the fans. Its completely understandable the simulations were slightly off, but still on the same order.

jgarzik

legendary

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Quote from: regular on February 01, 2013, 10:23:43 PM

When quoting BFL's numbers, no one includes the PC it's hooked up to either.

+1, a fair perspective

Plazzman

member

Activity: 85

Merit: 10

Couldn't you gain about 10-15% efficiency from the power supply using 220v instead of 110v at least with the power supply?

ATX power loses(82%), DC/DC power loses(87%), Fan(5~20w), etc…
Not sure it would benefit any of the other numbers?

darkip

full member

Activity: 160

Merit: 100

Quote from: regular on February 01, 2013, 10:23:43 PM

When quoting BFL's numbers, no one includes the PC it's hooked up to either.

A Raspberry Pi definitely doesn't pull 200w though and you can hook the BFL stuff up to any low power board with USB connectivity...

regular

sr. member

Activity: 297

Merit: 250

thanks for clearing that up ngzhang.

Makes sense as it's a stand alone unit. When quoting BFL's numbers, no one includes the PC it's hooked up to either.

ngzhang

hero member

Activity: 592

Merit: 501

We will stand and fight.

Chip's power consumption is <6.6W/Ghs

ATX power loses(82%), DC/DC power loses(87%), Fan(5~20w), etc…

So…

Dhomochevsky

sr. member

Activity: 242

Merit: 251

620 Watts is quite a ways off the 400 Watts Yifu kept insisting on... Jeff, are you sure nothing's going haywire over there? Because I find it hard to believe a 50% larger power consumption is something they would've missed during development. Hell, it's even a tad over the maximum possible power draw they announced back in the day and they specifically mentioned that electricity consumption is lower than they initially estimated, bringing it at 400W.

[EDIT] I see Yifu updated the power consumption at 450W, but it's still a far cry from the 620 Jeff reported. So which is it?

repentance

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Activity: 868

Merit: 1000

Quote from: organofcorti on February 01, 2013, 09:57:36 PM

Quote from: Mikej0h on February 01, 2013, 09:56:32 PM

My questions are mainly of shipping:
- Did you have to sign for the shipment (was it registrered/insured)?
- Did the machine clear off to customs, or was it taxed?

And do you remember how much shipping was when you ordered it last year?

Jeff's machine got special shipping because it was intended to arrive on a specific day. Avalon said towards the end of January that shipping the units was going to cost more than they thought so it may well be more than they charged for batch 1. This may be another reason why they're so keen on resellers entering the game.

Mikej0h

member

Activity: 117

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Life is short, play long

Quote from: organofcorti on February 01, 2013, 09:57:36 PM

Quote from: Mikej0h on February 01, 2013, 09:56:32 PM

My questions are mainly of shipping:
- Did you have to sign for the shipment (was it registrered/insured)?
- Did the machine clear off to customs, or was it taxed?

And do you remember how much shipping was when you ordered it last year?

60,- USD if I recall correct.

organofcorti

donator

Activity: 2058

Merit: 1007

Poor impulse control.

Quote from: Mikej0h on February 01, 2013, 09:56:32 PM

My questions are mainly of shipping:
- Did you have to sign for the shipment (was it registrered/insured)?
- Did the machine clear off to customs, or was it taxed?

And do you remember how much shipping was when you ordered it last year?

Mikej0h

member

Activity: 117

Merit: 100

Life is short, play long

My questions are mainly of shipping:
- Did you have to sign for the shipment (was it registrered/insured)?
- Did the machine clear off to customs, or was it taxed?

MrTeal

legendary

Activity: 1274

Merit: 1004

Quote from: crazyates on February 01, 2013, 09:35:05 PM

Quote from: organofcorti on February 01, 2013, 09:33:54 PM

Quote from: jgarzik on February 01, 2013, 09:29:25 PM

Power numbers snapshot:

620 Watts, 5.6 Amps

thanks to Kill-A-Watt.

200+W per unit? Holy balls. That's a hell of a lot more than 400W.

Looking at the images from the Bitcoin Federation unit, it looks like they're using the 1000W Platinum unit.
Compare the sides on the 850W PSU

http://www.hardwareheaven.com/reviews/1358/pg2/enermax-revolution87-850w-power-supply-review-external.html
vs the sides on the 1000W

http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=270

Looks like they might need it to run 4 modules.

julz

legendary

Activity: 1092

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Ouch.
I sure hope they deliver to Australia quickly... because I have a feeling I won't be running my Avalon for long.
I'll probably find a use for the case and sell off the modules to someone who has cheap elec :/

crazyates

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Activity: 952

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Quote from: organofcorti on February 01, 2013, 09:33:54 PM

Quote from: jgarzik on February 01, 2013, 09:29:25 PM

Power numbers snapshot:

620 Watts, 5.6 Amps

thanks to Kill-A-Watt.

200+W per unit? Holy balls. That's a hell of a lot more than 400W.

organofcorti

donator

Activity: 2058

Merit: 1007

Poor impulse control.

Quote from: jgarzik on February 01, 2013, 09:29:25 PM

Power numbers snapshot:

620 Watts, 5.6 Amps

thanks to Kill-A-Watt.

Thanks Jeff. That makes a big difference to the earnings potential in the long run - but probably not for the next batch, unless BFL manage to deliver.

Quote from: darkip on February 01, 2013, 09:32:50 PM

Quote from: jgarzik on February 01, 2013, 09:29:25 PM

620 Watts, 5.6 Amps

That is not 400W :\ I think I might be reconsidering my purchases from batch 2 now.

Thanks for taking the time to write the review and take the readings Jeff

Even at the US$0.25/kWh, $20 USD/btc and difficulty = 6 million (after 300 Avalon units have been added) you'll still clear US$108 per day.

If BFL ships another 40Ghps and diificulty = 12 million, you'll still clear US$52 per day. You should still be able to make an ROI if the exchange rates hold. I'll try to post something quick about the limits of profitability later.

darkip

full member

Activity: 160

Merit: 100

Quote from: jgarzik on February 01, 2013, 09:29:25 PM

620 Watts, 5.6 Amps

That is not 400W :\ I think I might be reconsidering my purchases from batch 2 now.

Thanks for taking the time to write the review and take the readings Jeff

jgarzik

legendary

Activity: 1596

Merit: 1100

Power numbers snapshot:

620 Watts, 5.6 Amps

thanks to Kill-A-Watt.

Code:

   [Elapsed] => 2186
   [MHS av] => 66320.47
   [Found Blocks] => 0
   [Getworks] => 73
   [Accepted] => 2060
...
   [miner_count] => 24
   [asic_count] => 10
   [fan1] => 0
   [fan2] => 1920
   [fan3] => 1920
   [temp1] => 27
   [temp2] => -1
   [temp3] => 48
   [temp_max] => 49

Gomeler

hero member

Activity: 697

Merit: 500

Any idea what temps the modules and heatsinks are hitting? Curious if those heatsinks were overkill or necessary.

jgarzik

legendary

Activity: 1596

Merit: 1100

Quote from: Aseras on February 01, 2013, 04:07:41 PM

Did you ever try it in p2pool

Yes, see the review linked in OP.

Quote

or with a high diff share?

Yes, "vardiff" works on BTC Guild with this miner.

Aseras

hero member

Activity: 658

Merit: 500

I ordered several units ( on my birthday Cheesy

), patiently waiting their arrival.

Did you ever try it in p2pool or with a high diff share?

Topic: Avalon ASIC users thread - page 220. (Read 438602 times)