[ANN] Bitfury ASIC sales in EU and Europe - page 80.

MXRider

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Activity: 466

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Quote from: vulgartrendkill on August 31, 2013, 02:15:21 PM

I have to say I wish I had gone bitfury in the first place. Sad

These chips are at the moment my favourite on the market. Great looking pcbs too.

If I wanted to run from a pc could I?

M-board has GPIO connector and two PCI-E 6-pin connectors so Raspberry Pi is the way to go.

Every piece of software can be updated. It's a normal RasPi so you can do whatever you want with it.

vulgartrendkill

hero member

Activity: 518

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I have to say I wish I had gone bitfury in the first place. Sad

These chips are at the moment my favourite on the market. Great looking pcbs too.

If I wanted to run from a pc could I?

MXRider

sr. member

Activity: 466

Merit: 250

Here is my contribution to resolving the bet.

Some info and pictures of my units: 400GH unit and 25GH unit. Total hashrate ordered 425GH. They seem to be working better without fans.

This is what I got yesterday:

Power consumption is for 16 H-Boards.

I'm still tweaking my units manually. I'd say 380GH from 16 H-boards is possible.

Here is a picture from my pool. Hashrate estimate is based on the previous 45 minutes.
Both units are connected to worker "Bebber_1".

Syke

legendary

Activity: 3878

Merit: 1193

Quote from: MXRider on August 31, 2013, 12:45:14 PM

- 365GH vs. 60GH.
- Silent vs. loud as fuck
- Waiting for 13 months after payment vs. waiting for one month after payment
- Both units are around $60/GH. Both use ~270W when mining. They are almost the same size.

Great comparison.

Trupik

member

Activity: 136

Merit: 13

MXRider: you forgot to mention, that you will need a computer next to the BFL junk to even start working.

MXRider

sr. member

Activity: 466

Merit: 250

- 365GH vs. 60GH.
- Silent vs. loud as fuck
- Waiting for 13 months after payment vs. waiting for one month after payment
- Both units are around $60/GH. Both use ~270W when mining. They are almost the same size.

Threader

sr. member

Activity: 406

Merit: 250

I want to personally thank Bitfury for being one start-up Asic Hardware company that is executing on plans.

I encourage you to be the role model and leader that others will hopefully follow.

There are other companies (not to be named) that said it couldn't be done in such short timelines just to justify their own inadequacies.

I say to you "BRAVO!"

Micky25

legendary

Activity: 974

Merit: 1000

Quote from: punin on August 30, 2013, 11:11:24 AM

We're now going to celebrate with my team here a bit.. been amazingly busy week.

Quote from: punin on August 31, 2013, 10:59:38 AM

No it means next M-boards will be even better

Back at work already? I'm disappointed. For what you achieved, you and your team would have merited a massive two-day party-weekend + joint blackout and two-day hangover (optional) Cheesy

For the October milestone, which, I'm quite sure, will again surprise everybody in multiple positive ways, I will arrange a tip-jar for you guys, which will enable you to go on a 3-day wreak havoc feast. Grin

punin

hero member

Activity: 560

Merit: 500

No it means next M-boards will be even better

mr_rulezzz

member

Activity: 61

Merit: 10

Quote from: punin on August 31, 2013, 10:31:22 AM

PSU considerations:

We also found a noticeable voltage drop on the IOVDD chain when all 16 cards are plugged in (down to 1V66 from 1V8). This will get fixed (hopefully) in next revision on M-boards, that is already in production. This should help lower the errors and noise on Bus D.

this mean rev2 m-boards are not ready for full upgrade?

punin

hero member

Activity: 560

Merit: 500

PSU considerations:

H-boards were designed to be passively cooled and the core voltage is one of key elements limiting the hash speed.

ATX PSU's are relatively inexpensive and widely available. I suggest you to spend your money on quality, that leaves headroom for expansion. I use OCZ 1250 ZX myself. This can easily power 3 full rigs, is fully modular, quiet and has efficiency of ~90%. (It's little brother 1000 ZX received outstanding review on johnnyguru and should be sufficient for 3 rigs also.)

The bottleneck on our design is the TPS53355 regulator, that can only supply 30A. Increasing resistance on R01F increases the core voltage, but can lead to overload of TPS53355 (not to mention cooling issues) as chips consume more amps. The chips will not overclock to extreme frequencies with insufficient core voltage, but produce errors instead or lose programming etc.

If you plan on modifying your boards, please remember that doing so will void your warranty. Please remember your boards were not designed to run this hot, so blow some air on them you plan modding.

We also found a noticeable voltage drop on the IOVDD chain when all 16 cards are plugged in (down to 1V66 from 1V8). This will get fixed (hopefully) in next revision on M-boards, that is already in production. This should help lower the errors and noise on Bus D.

Trupik

member

Activity: 136

Merit: 13

Quote from: Aajo on August 31, 2013, 03:44:17 AM

why 38A or more on one rail? Punin said 250W at the wall so depending on the PSU he used that makes around 20A @12V in my calculation, am I wrong?

Your calculation seems right (20.8333333 amps to be exact, assuming 100% efficiency). There are reasons why I'm going for higher limit in my supply:

1. H-Boards are under-performing at the moment. If the issue is resolved, they may drain more power at the desired hashing speed. Advertised consumption is ~40W (at the wall) at ~25GH/s per board.

2. There are 3 positions to plug in fans to the Master board. Depending on the fan model, they may draw up to 0.6A each. Add this to the calculation.

3. The power supply efficiency is best (generally speaking) between 50% and 80% load. Nearing 99% load, you are not at the best efficiency, and you are risking that the power supply will shut down (or blow a fuse) to protect itself.

4. Overclocking - if you hope to overclock your rig, it would need more power.

But I'm just an enthusiast. It would be far better, if punin can make some official recommendations about the PSU.

joris

full member

Activity: 141

Merit: 100

Quote from: spiccioli on August 30, 2013, 05:32:39 AM

I'd like to invite everyone who is going to receive a unit to use a small pool and/or p2pool if the miner inside the unit can work with it.

There are several small pools, pools with less than 50 TH/s of capacity, which should/need to grow to be able to balance the one or two mega-pools available.

This is for the health of the bitcoin network, most of all, and given that BitFury is delivering several TH/s of hashing power this is a good moment for this call to arms

spiccioli

I like to recommend the mining pool https://pool.itzod.ru. Needs some hashrate to bring pool hashrate back to above 1% of the network.

No fees, I have donation set at 1%, and all mining rewards (both block and transaction fees) go towards paying for all of your PPS-work (including those for invalid blocks). From March untill now I'm standing at 2-3% in BTC to be paid from future lucky rounds. Not bad compared with pure PPS-pools.

Best wishes,

Joris

Aajo

member

Activity: 94

Merit: 10

Quote from: Trupik on August 31, 2013, 02:11:24 AM

Important thing to notice: you should get a power source with one +12V rail rated 38A or more (the Seasonic G-450 looks fine). There are also power supplies that have two +12V rails, rated at half of the needed amps (e.g. 2x 19A). If there are two +12V rails, they are in most cases wired that way, that both PCI-E 6-pin wires are on the same rail, while the CPU and MB are on the other. The reason behind this is to separate the CPU and GPU and suppress the interference between these two. This is normally OK thing to do in a PC computer, but in the case of your mining rig, you will overload one rail, while the other is unused.

You can tell how many +12V rails there are, by looking at the label on the power supply itself:

one +12V rail example: http://www.hardwaresecrets.com/fullimage.php?image=51129

two +12V rails example: http://www.hardwaresecrets.com/fullimage.php?image=24299

why 38A or more on one rail? Punin said 250W at the wall so depending on the PSU he used that makes around 20A @12V in my calculation, am I wrong?

Trupik

member

Activity: 136

Merit: 13

Quote from: Isokivi on August 30, 2013, 04:26:29 PM

Quote from: achimsmile on August 30, 2013, 04:17:51 PM

What PSU would you recommend for a starter kit that will hopefully be fully populated by october?

The M-board takes 2x 6pin PCI-E. I guess a Seasonic G-450 would do the trick, also power wise?

And I assume I will have to do the paperclip trick on the ATX connector?

Thanks for clarifying it for me Grin

Any psu with 2x 6pin Pci-e is fine.. but incase you are planning to upgrade to a full kit eventually the I'd reccomed 500w or more.. and yes the old paperclip trick is in use

Important thing to notice: you should get a power source with one +12V rail rated 38A or more (the Seasonic G-450 looks fine). There are also power supplies that have two +12V rails, rated at half of the needed amps (e.g. 2x 19A). If there are two +12V rails, they are in most cases wired that way, that both PCI-E 6-pin wires are on the same rail, while the CPU and MB are on the other. The reason behind this is to separate the CPU and GPU and suppress the interference between these two. This is normally OK thing to do in a PC computer, but in the case of your mining rig, you will overload one rail, while the other is unused.

You can tell how many +12V rails there are, by looking at the label on the power supply itself:

one +12V rail example: http://www.hardwaresecrets.com/fullimage.php?image=51129

two +12V rails example: http://www.hardwaresecrets.com/fullimage.php?image=24299

Humax

full member

Activity: 203

Merit: 100

The law of the universe!

order #35x, no tracking number...... Cry

spiccioli

legendary

Activity: 1379

Merit: 1003

nec sine labore

Quote from: arorts on August 30, 2013, 05:03:08 PM

Quote from: spiccioli on August 30, 2013, 03:52:46 PM

Quote from: arorts on August 30, 2013, 02:37:50 PM

Thank you and your team, Punin. Fantastic job!!

BTW, does anyone recommend a good, reliable p2ppool? I heard some miners don't perform well on them due to latency issues.

If you're going the p2pool path the best option is to have your instance of bitcoind/p2pool software running, otherwise, just for a test and to be sure the embedded miner does work on p2pool you can select any pool from this list

https://bitcointalksearch.org/topic/m.2829721

the closer to you the better.

spiccioli

Excellent! Thanks!
Do you know if there's any rPI-ready p2pool software out there that could work with bitfury or steps to do so?

No, you can't run p2pool on an rPI.

You need a full PC to do this task and then you point your rPI to the address of your PC port 9332.

spiccioli

arorts

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Activity: 408

Merit: 250

Quote from: spiccioli on August 30, 2013, 03:52:46 PM

Quote from: arorts on August 30, 2013, 02:37:50 PM

Thank you and your team, Punin. Fantastic job!!

BTW, does anyone recommend a good, reliable p2ppool? I heard some miners don't perform well on them due to latency issues.

If you're going the p2pool path the best option is to have your instance of bitcoind/p2pool software running, otherwise, just for a test and to be sure the embedded miner does work on p2pool you can select any pool from this list

https://bitcointalksearch.org/topic/m.2829721

the closer to you the better.

spiccioli

Excellent! Thanks!
Do you know if there's any rPI-ready p2pool software out there that could work with bitfury or steps to do so?

Isokivi

hero member

Activity: 910

Merit: 1000

Items flashing here available at btctrinkets.com

On a sidenote I should propably mention that the psu I used for my starter kit initially died on me. There is nothing to suggest that this had anything to do with the hardware. It was a heavily pre-abused psu: https://bitcointalksearch.org/topic/hashmaster-2000-outdoor-mining-in-the-arctic-76008

achimsmile

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Activity: 1225

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Quote from: Isokivi on August 30, 2013, 04:26:29 PM

Quote from: achimsmile on August 30, 2013, 04:17:51 PM

What PSU would you recommend for a starter kit that will hopefully be fully populated by october?

The M-board takes 2x 6pin PCI-E. I guess a Seasonic G-450 would do the trick, also power wise?

And I assume I will have to do the paperclip trick on the ATX connector?

Thanks for clarifying it for me Grin

Any psu with 2x 6pin Pci-e is fine.. but incase you are planning to upgrade to a full kit eventually the I'd reccomed 500w or more.. and yes the old paperclip trick is in use

Thank you! Will do so.

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