FPGA development board "Icarus" - DisContinued/ important announcement - page 45.

ngzhang

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Quote from: server on December 08, 2011, 07:47:12 AM

Quote from: ngzhang on December 07, 2011, 10:48:29 PM

ah, first user appeared. i just give 1 board to xiangfu @ beijing by personal.

That's nice, but I would like to play also with Christmas, why don't you ship the orders that are paid for ?

oh, i must go to a post-office 15KM away to mail internationally, my plan is after all buyer's payment is finished, than ship them all together.

this morning, last one payment is finished, and i pack all icarus to box tonight, tomorrow they will be all send out.

fell at ease. Grin

server

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1 BTC =1 BTC

Quote from: ngzhang on December 07, 2011, 10:48:29 PM

ah, first user appeared. i just give 1 board to xiangfu @ beijing by personal.

That's nice, but I would like to play also with Christmas, why don't you ship the orders that are paid for ?

ngzhang

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We will stand and fight.

ah, first user appeared. i just give 1 board to xiangfu @ beijing by personal.
his web page for icarus:

http://www.openmobilefree.net/?p=1215

many thanks for him~ Grin

ngzhang

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Quote from: Minor on December 06, 2011, 03:01:54 AM

Based on the OP, (sorry I haven't re-read the whole thread recently), each FPGA has to dissipate less than 10W.
Are fans really necessary?
It seems that a pair of small passive heat sinks should do just fine.
Reducing both cost and total power consumption (admittedly minimally) and more importantly the noise level.

This is really a question, but there are some necessary reasons.

XC6SLX150 's FGG484 package has a very high thermal resistance, the cooling system must keep the chip surface at a very low temp.
so, a heatsink and a small fan is really needed.

i also tried a larger heatsink without fan, but result is not very good. this function limit the power below approx. 5W.

Sad

aTg

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The idea seems good, another good option would be to use a large passive heat sink for the two chips at once, as do the Intel Atom not need ventilators.

Minor

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Based on the OP, (sorry I haven't re-read the whole thread recently), each FPGA has to dissipate less than 10W.
Are fans really necessary?
It seems that a pair of small passive heat sinks should do just fine.
Reducing both cost and total power consumption (admittedly minimally) and more importantly the noise level.

sirky

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Following

ngzhang

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hi, every one.
sorry for a the delay, i start to release the fpga project and the mining software to github, when i finish them, next i will start the payment stage.

ADD：
all dos upload finish, let's go to the payment stage.

ngzhang

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Quote from: aTg on December 02, 2011, 11:05:36 AM

What type of USB hub are you using? or that used large quantities of cards?

this one.

http://www.360buy.com/product/152976.html

(i hope you good at chinese)

approx: 5$

aTg

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What type of USB hub are you using? or that used large quantities of cards?

ngzhang

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ADD some pics.

5 borads under test.

5 boards max power:

ADD:

2nd batch of another 30 boards are on the way. next week they will be assembled, but will not open for sell until first batch's response is ok.

ngzhang

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Quote from: DeepBit on December 01, 2011, 09:45:08 AM

Looks like it's time to update the "pre-order started" part of the thread title

yeah, wait a minute.

DeepBit

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Looks like it's time to update the "pre-order started" part of the thread title :)

aTg

legendary

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No shit, here many people have to make an effort to speak English and now we have to learn Chinese Huh

finway

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保修问题怎么解决是个问题...

ngzhang

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Quote from: macbook-air on November 30, 2011, 06:38:12 PM

老兄你送我块版子，我教你英文吧……

英文什么时候都不是教出来的。

Grin

macbook-air

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老兄你送我块版子，我教你英文吧……

xaxik

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Quote from: ngzhang on November 09, 2011, 12:29:57 PM

all PCB design files released. here:
https://github.com/ngzhang/Icarus

Thanks a lot.

btc_artist

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Bitcoin!

Very nice looking boards.

ngzhang

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Quote from: 2112 on November 30, 2011, 01:05:16 PM

Quote from: ngzhang on November 30, 2011, 12:56:45 PM

i have not do any speed test between the 2 fpgas, but the signals are routed as diff-pairs, so the speed "i think" may easily reach 800M + . and i will test them when i have some free time. you know the whole things are all handled by myself... only 1 person. and there is only 1 another person help me @ software. i'm really really very sorry for a lack of fully performance testing.

Please take your time. I'm not in a hurry. For now I'm playing with LX9 from Avnet doing really simple things to understand the limitations of the current technology.

I also noticed the words "bridal tour" in your edited first message of this thread. If you were just married then congratulations! and really take your time!

yeah, just married and take a week in Hongkong , i never go so far, i love that place and especially the Disneyland is so fantastic even i'm already not a boy. Grin

Topic: FPGA development board "Icarus" - DisContinued/ important announcement - page 45. (Read 207285 times)