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1  Bitcoin / Hardware / Re: The Chili – 30+GH/s BFL based Bitcoin Miner Assembly [Batch 3 open] on: December 04, 2013, 04:32:46 AM
We might take a look at something like that. The minions are interesting chips in a lot of ways. A lot of the basic design is done, so while it wouldn't be a dead simple port like Avalon Gen1 to Gen2, it would be a similar interface and setup to the BFL chips.


EPIC!

I am in! Should we start a tally somewhere to get an idea of how much support there is for this?

Bob, what do you think is a fair price per chip since you are THE first person in line?

I cant really sell the chips at a discount, but I can offer them to be delivered ASAP. I guess I should make the thread now..

Count me in as well.   Cool

I do a simple and rough math.
The unit cost per GH/s of Chili-Minion is about 1/10 of Chili-BFL.
Suppose the difficulty adjust is about 20% rising exponential. (1.2)^x=10, x~=6.
It means the shipment of Chili-Minion board should be within 60 days, or it's hard to break-even assume there's no another BTC/USD surge in the future.

Even so, I still want in Smiley Please reserve 8 Minion chips for me, if MrTeal and ChipGeek would do it.
2  Bitcoin / Hardware / Re: The Chili – 30+GH/s BFL based Bitcoin Miner Assembly on: October 25, 2013, 02:52:08 AM
I have brought up 8 so far, and experienced some strange phenomenon.

Two out of them is harder to get them start mining, at the very first beginning. and it become harder and harder with each reboot. These two eventually cease to operate yesterday, until now (but still viewable in cgminer console)

And one of these two boards I just report shows a "ZOMBIE" status after the first over-night trial, about 1.5 hours after starting. Then I need to turn of PSU then can get it start (but need 0.5 hour....)

Wish I have capability to debug this, but I have no Sad

Thanks~
3  Bitcoin / Hardware / Re: BFL ASIC mining board project on: September 26, 2013, 03:12:30 AM
Just curious about if there's a reference design of how to mount 12 8-chip board and setup the cooling solution/power supply in an elegant way?

And since its hash power fall on about the power of BFL's 'Single', are you considering to give it a code name? maybe 'Singular' or 'Singleton'??
4  Bitcoin / Hardware / Re: BFL ASIC mining board project on: August 21, 2013, 04:46:50 AM
Hi MrTeal, How are my sample chips working with testing boards? Are they also defect ICs?
5  Bitcoin / Hardware / Re: BFL ASIC mining board project on: July 26, 2013, 03:04:11 AM
I presume $300(plus chips) might be a typo. since 8 chips already costs $500.
6  Local / 中文 (Chinese) / 野人献曝 - 比特币经济学 on: July 12, 2013, 03:42:55 PM
从二零一三年六月以来,我投身比特币矿工的体验,先后建造了两台矿机,并发
现市面上不停出现更便宜的矿机,诱惑着矿工以更便宜的单位算力价格买入更强大
的矿机,在自己评估是否投入这场军备竞赛的混战中,我使用初中就可理解的数学
原理,得到使自己吃惊的推论,更吃惊的是为什么普天之下莫非矿工却没有人做出
类似的计算来劝阻这一场无益的竞赛。是的,我雷人了,本应是结论却在第一段就
先剧透,这是一场矿工不可能获胜的博弈。

为简化计算,电价以免费计,周边的损耗如USB集线器电风扇等以免费计:

我的第一台矿机为GPU矿机,内含三张AMD7970,总成本以人民币一万二计算,
算力 1.5GHash/s,这台我连提都不想提,回本基本无望。

我的第二台矿机:某种USB矿机十五根,每根算力333MH/s,十五根共5GH/s,
成本每根1.2BTC共18BTC,我们来看回本是否有望。

难度表相信矿工们都很熟悉,自从ASIC矿机出现江湖,每十一天到十三天不等调
整难度总能深深震撼苦命矿工的心,六月起我假设每次难度增加百分之二十,您能
接受吗,废话,您当然不能接受,但这是一个不争的事实,那就是比特币全网总算
力以每十一天到十三天增加百分之二十的指数增长头也不回的往上飙。

6/29 - 7/11这十二天我的第二台矿机每日矿产以0.12BTC计,一共产出1.44BTC,
嗯嗯很好很好,貌似这样的好光景能永存啊,这样再过十几个十二天我那不管是
MT、BTC-e还是BTCChina用真金白银换来的18BTC好像是有回本的可能性,再
来就是净赚了喔耶。但是初中除了给我们吃了不少藤条粉笔灰,也教了我们甚么叫
做等比级数,下一个十二天因为难度提高了百分之二十,因此我的产出只能是上个
基期的 1.0/1.2,也就是1.2BTC;再下一 个十二天的产出,欸,刚好是一个B;迭
代下去终其一生我能得到多少B?下面的公式给您一个参考,我很不愿意看到这个
结果,但看来我是必须认赔了:

a(1+r+r^2+r^3+....) = a/(1-r) = 1.44 (1-1.0/1.2) = 1.44 * 6 = 8.64B < 18B

用白话文说,18B买的5GH/s矿机,我开动它,直到世界末日,它可以给我8.64B,
真是一笔好生意,不过这是对卖矿机的庄家而言,对于广大的无产阶级同志矿工们,
这是一个哈利波特的意若思镜(Mirror of Erised),矿工以为看到的是回本的那一天,
而实则这一天的存在是个虚相。

我很不喜欢拿人家正在卖的东西来打比方,因为我们中国人有个优良传统,叫做
是好狗不挡人财路,但我权衡了一下,身为矿工却不为矿工作点工作,非义也。最
近又在卖某种矿机了,5G卖9.88BTC,10G卖18.88BTC,这价格其实非常有玄
机。假设矿工某某人开着时光机在6/29买到了这5G的矿机并且上线不停歇的挖矿,
您猜猜宇宙毁灭之前可以挖到多少位币?哎呀好巧,就是8.64B,10G的矿机?
17.28B!前提就是这个矿工在6/29买到了矿机并全速运转,电费免费,周边也免
费,矿工自己的时间精力皆免费。但,还是回本无望。

如果看到这里还有力气继续推算下去,其实我们可以得到一个算力跟价格随时间
更迭的对照表,矿工惟有在该时间点能以低于这时间价格取得矿机才有获利的可能,
这里以5GH/s的算力来举例,其他算力可按比例自行推算:

5GH/s在6/29的时间价格为8.64B
5GH/s在7/11的时间价格为8.64-1.44=7.2B
5GH/s在7/23的时间价格为7.2-1.2=6B
5GH/s在8/4的时间价格为6-1=5B
….

八月四号是很重要的一天,这一天之后1GH/s算力的生涯价值从此跌破1B,
不再回头。

现货已然如此不堪,我真不愿意去想象期货的惨状,文尽于此,不胜唏嘘,矿工
世界游览一月,已足够终身回味,我那第二台要开一辈子才能赚8.64B,呜呼!

如本文对您有益,请随意施舍,转载翻译引用繁转简皆请随意,惟不可改动小弟
收款地址,感恩。(1FPwA8hrL6tRqUgD2vfPsFmS4Mze9vQ9LT)
7  Economy / Service Discussion / Re: 0.25 BTC Bounty - Show me a Mt Gox USD Withdrawal :) on: July 12, 2013, 02:09:49 PM
For your reference, I am in Taiwan and I've done two experiments on 7/8. The first is to make withdrawals from MT to two of my local accounts. The other is to bank wire some money to BTC-e (Czech).
BTC-e notified me the arrival of the money at 7/10 night. But I haven't seen any deposit into my two local USD account from MT. There seems something wrong, and if there's no deposit after two weeks. I'll wrap up and leave, no longer use MT.
8  Other / Beginners & Help / Re: Bitcoin Businesses and Developers, Let's Get Started! on: July 08, 2013, 04:28:06 AM
I am planning to port the miner on new Intel Xeon Phi, please whitelist me, thanks a lot!
9  Other / Beginners & Help / Re: What's your Mhash/s? (Pissing contest here) on: July 08, 2013, 04:19:40 AM
6.5G, including 3x7970 and 15 Block Erupter USBs
First time here, I am a newbie.
How long to stay on-site and How many newbie posts do I need to become a member?
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