[ANN] Bitfury ASIC sales in EU and Europe - page 51.

punin

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Quote from: Beastlymac on September 29, 2013, 12:06:39 AM

Hi Punin,

Would it be possible to get a data sheet with the thermal specs for the bitfury chip? Thanks

Package thermal resistance Tj-Tpad is 2°K/W. Chips have been tested to run at extreme temperatures. One user used a soldering iron to heat the chip to the point it desoldered. Hashing stopped only when chip started floating on solder and shortcircuited.

-Redacted-

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You know, if you take the bypass caps off, there is isn't a whole lot left on the board except the chips and the voltage regulator. And over in the tuning thread, someone proved that you could even remove some of the chips with a power grinder, and the board would still work...

Pay no attention to my kid sister Rachael Svetlana - at least until she gives me back my gmail account. I don't care how many degrees she has from Lomonosov.

Don't make me have to catch a flight to Moscow and smack you one when I get there. Get your own email account and give mine back or I'll start posting some of your embarrassing baby pictures online. Brat.

RoadStress

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Quote from: itod on September 29, 2013, 06:18:50 AM

Quote from: RoadStress on September 29, 2013, 06:03:15 AM

@itod i don't see where -Redacted- insulted people on this thread.

Bitfury is a Russian product, and coming to this thread and saying that Russian things work better with only 1/2 the parts in place... Well if it is funny to you, it is not to me.

Working with only 1/2 the parts and maybe better just tells me that russian products are built to work no matter how and i can only praise the design and how russian build their stuff. They are not very sensitive products and they seem to be very robust working in all conditions.

papamoi

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Quote from: itod on September 29, 2013, 06:18:50 AM

Quote from: RoadStress on September 29, 2013, 06:03:15 AM

@itod i don't see where -Redacted- insulted people on this thread.

Bitfury is a Russian product, and coming to this thread and saying that Russian things work better with only 1/2 the parts in place... Well if it is funny to you, it is not to me.

don t talk bullshit if you don t know anything,there is russian ukrainian ,tcheck and finland guys in this project so stop writing if you ignore them

thanks

itod

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^ Will code for Bitcoins

Quote from: RoadStress on September 29, 2013, 06:03:15 AM

@itod i don't see where -Redacted- insulted people on this thread.

Bitfury is a Russian product, and coming to this thread and saying that Russian things work better with only 1/2 the parts in place... Well if it is funny to you, it is not to me.

RoadStress

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Quote from: -Redacted- on September 28, 2013, 06:49:51 PM

Quote from: xstr8guy on September 28, 2013, 04:33:28 PM

Really? Is no one questioning why it's suddenly ok to yank half of the components off of the H boards? Do we need to worry that our old H boards are going to spontaneously combust and burn our houses down?

Russian design. Probably works better with only 1/2 the parts in place...

Nice one -Redacted-

@itod i don't see where -Redacted- insulted people on this thread.

itod

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^ Will code for Bitcoins

Quote from: rsbriggs on September 29, 2013, 03:00:46 AM

Quote from: -Redacted- on September 28, 2013, 06:49:51 PM

Quote from: xstr8guy on September 28, 2013, 04:33:28 PM

Really? Is no one questioning why it's suddenly ok to yank half of the components off of the H boards? Do we need to worry that our old H boards are going to spontaneously combust and burn our houses down?

Russian design. Probably works better with only 1/2 the parts in place...

Please to be ignoreing idiot brother. Having only 1/2 brain, so can be working with only 1/2 in parts count.

-Redacted- jumping around threads on this forum insulting people. He probably even is not aware what is insulating and what is funny. Ignore button is the only cure.

@-Redacted-: Don't bother to respond you are on ignore already, I wouldn't see this above if it was not quoted.

rsbriggs

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Quote from: -Redacted- on September 28, 2013, 06:49:51 PM

Quote from: xstr8guy on September 28, 2013, 04:33:28 PM

Really? Is no one questioning why it's suddenly ok to yank half of the components off of the H boards? Do we need to worry that our old H boards are going to spontaneously combust and burn our houses down?

Russian design. Probably works better with only 1/2 the parts in place...

Please to be ignoreing idiot brother. Having only 1/2 brain, so can be working with only 1/2 in parts count.

Dexter770221

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Quote from: -Redacted- on September 28, 2013, 06:49:51 PM

Quote from: xstr8guy on September 28, 2013, 04:33:28 PM

Really? Is no one questioning why it's suddenly ok to yank half of the components off of the H boards? Do we need to worry that our old H boards are going to spontaneously combust and burn our houses down?

Russian design. Probably works better with only 1/2 the parts in place...

Quote from "Armagedon" movie:
"American components, Russian components, all made in Taiwan!!"
And bang, slam with a hammer (or maybe it was a wrench) ....

Beastlymac

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Miner Setup And Reviews. WASP Rep.

Hi Punin,

Would it be possible to get a data sheet with the thermal specs for the bitfury chip? Thanks

-Redacted-

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Activity: 574

Merit: 501

Quote from: xstr8guy on September 28, 2013, 04:33:28 PM

Really? Is no one questioning why it's suddenly ok to yank half of the components off of the H boards? Do we need to worry that our old H boards are going to spontaneously combust and burn our houses down?

Russian design. Probably works better with only 1/2 the parts in place...

-Redacted-

hero member

Activity: 574

Merit: 501

No problems here with my August boards - caps are pretty warm but not as hot as the chips. Are we sure they didn't mix up the parts and end up building these with resistors in the place of bypass caps?

Why in the world would a bypass cap heat up like that - short of there being an awful lot of AC present? Leaky? Way over-voltage? Just plain-old wrong part placed? Is there suddenly a world-wide shortage of EE's such that nobody with the required expertise can look to see what's going on?

xstr8guy

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Glow Stick Dance!

Quote from: BBQKorv on September 28, 2013, 05:11:48 PM

Quote from: xstr8guy on September 28, 2013, 04:33:28 PM

Really? Is no one questioning why it's suddenly ok to yank half of the components off of the H boards? Do we need to worry that our old H boards are going to spontaneously combust and burn our houses down?

You can sell them to me as junk, I promise to take good care of them if you worry too much Cool

Seriously, this cap problem has not been reported on any of the August batch boards, you can see failing caps in just a day as they turn totally black.

Thank you for explaining that to me! No worries then. But I'll keep a small fire extinguisher next to my August boards just in case. Wink

BBQKorv

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Quote from: xstr8guy on September 28, 2013, 04:33:28 PM

Really? Is no one questioning why it's suddenly ok to yank half of the components off of the H boards? Do we need to worry that our old H boards are going to spontaneously combust and burn our houses down?

You can sell them to me as junk, I promise to take good care of them if you worry too much Cool

Seriously, this cap problem has not been reported on any of the August batch boards, you can see failing caps in just a day as they turn totally black.

xstr8guy

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Activity: 784

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Glow Stick Dance!

Really? Is no one questioning why it's suddenly ok to yank half of the components off of the H boards? Do we need to worry that our old H boards are going to spontaneously combust and burn our houses down?

punin

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Activity: 560

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Quote from: intron on September 28, 2013, 02:21:26 PM

Why do these 1210 caps get so hot? This absolutely not
supposed to be happening. Someone picked an ultra
low-cost crapacitor? Wink

intron

It's called extra profit margin in far east Wink

Meizirkki

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Maybe just a really unfortunate case of parasitic oscillation? Maybe the problem will disappear if you only remove 2 caps from each group and leave six in place? That would save some time too

mr_rulezzz

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Quote from: punin on September 28, 2013, 01:49:06 PM

For the Yay:

board still hashing without them?

intron

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- electronics design|embedded software|verilog -

Quote from: punin on September 28, 2013, 01:49:06 PM

For the Yay:

Why do these 1210 caps get so hot? This absolutely not
supposed to be happening. Someone picked an ultra
low-cost crapacitor? Wink

intron

punin

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Activity: 560

Merit: 500

Quote from: Isokivi on September 28, 2013, 01:56:17 PM

Quote from: punin on September 28, 2013, 01:50:54 PM

That's a bypass cap, no prob with 1 of those missing.

Back when I was torturing my board, after I fried it, one did go missing and the corresponding chip is dead.. just wondering if theres a way ro revive it. Im thinking of soldering the points on that together. But as usual I know very little of what Im working with

The chips can function ok with as little as 2 bypass caps per side.

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