or submit a ticket on http://support.avalon-asic.com/ like I did and got a positive reply a few minutes ago :-)

Username - Number of Units - Blockchain.info Receive time - BTC Transaction #
BenTuras - 3 - 2013-02-02 22:23:39 - 0b00c37f145fc7ebbe0626c99ec5228844921f811b22ab6186d2206307f6d3de

Earlier I paid the lower amount of BC 0.21154464 that will probably be refunded:
- - 2013-02-02 14:41:42 - 66a5ad55247c5f69cd04dade2064211d383aac055c60454e52200baec99c63cd

Update: After putting a support ticket on http://support.avalon-asic.com/ yesterday, I just got a very nice reply:
Hi Ben,

This is correct, your order appear in our system just fine.


So using the link to walletbit in my browser history, paying the full amount and putting a support ticket on http://support.avalon-asic.com/ worked out for me :-), but use your own judgement before doing the same !!

For the daredevils that paid the small amount earlier today and want to pay the full amount: check your browser history of earlier today for a link to bitwallet which contains https: // walletbit.com / pay ? token= (obviously without the spaces) and open that page again. You can pay the full amount and then prey....

No guarantees from my side, so don't shoot me if it fails!!!

I did it and I got the your paid BC 229 to Avalon confirmation page from walletbit and made a receipt:

Please wait, generating.
Item total 229.48540702 BTC
TOTAL 4,495.49 USD
Transaction 0b00c37f145fc7ebbe0626c99...
Time 11:23:35PM 02/02/2013

Then going back to the avalon side gave me store page without any further form to fill in.

AGAIN: DO THIS AT YOUR OWN RISK !!

It's starting to work. I fiddled with the board connected to a windows PC. Updated the Ztex firmware (it was indeed old) and without switching it off connected it to the Raspi.

 cgminer version 2.10.4 - Started: [2013-01-31 20:56:50]
--------------------------------------------------------------------------------
 (5s):473.1M (avg):200.2Mh/s | Q:7  A:8  R:0  HW:1  E:114%  U:2.7/m
 ST: 2  SS: 0  DW: 12  NB: 2  LW: 27  GF: 0  RF: 0  WU: 3.0
 Connected to 50.31.149.57 diff 1 with stratum as user bensguild_raspberry
 Block: 04ebfa5299bc5b8d...  Diff:2.97M  Started: [20:57:26]  Best share: 7
--------------------------------------------------------------------------------
 [P]ool management [ S ]ettings [D]isplay options [Q]uit
 ZTX 0: 04A346C253-1 | 208.0MHz | 194.9M/200.2Mh/s | A:8 R:0 HW:1 U:2.66/m
--------------------------------------------------------------------------------

 [2013-01-31 20:56:47] ZTEX 04A346C253-1: capability missing: 0 7
 [2013-01-31 20:56:47] ZTEX 04A346C253-1: Found Ztex (fpga count = 1) , mark as
0
 [2013-01-31 20:56:47] Probing for an alive pool
 [2013-01-31 20:56:50] Switching pool 0 http://btcguild.com:8332 to stratum+tcp:
//50.31.149.57:3333
 [2013-01-31 20:56:54] ZTEX 04A346C253-1: Frequency set to 200.0 MHz
 [2013-01-31 20:56:58] Accepted aa113f67 Diff 1/1 ZTX 0
 [2013-01-31 20:56:58] Stratum from pool 0 requested work restart
 [2013-01-31 20:56:59] API running in IP access mode on port 4028
 [2013-01-31 20:57:06] Accepted 3c583a1c Diff 4/1 ZTX 0
 [2013-01-31 20:57:26] Stratum from pool 0 detected new block
 [2013-01-31 20:57:41] Accepted d31c8be8 Diff 1/1 ZTX 0
 [2013-01-31 20:57:57] Accepted 57d37c0c Diff 2/1 ZTX 0
 [2013-01-31 20:58:09] ZTEX 04A346C253-1: Frequency change from 200.0 to 204.0 MHz
 [2013-01-31 20:58:18] Accepted df48cf46 Diff 1/1 ZTX 0
 [2013-01-31 20:59:19] Accepted 22be4434 Diff 7/1 ZTX 0
 [2013-01-31 20:59:32] ZTEX 04A346C253-1: Frequency change from 204.0 to 208.0 MHz
 [2013-01-31 20:59:44] ZTX0: invalid nonce - HW error
 [2013-01-31 20:59:44] Accepted a49ee248 Diff 1/1 ZTX 0

Nice

I tried the new release, but no luck. Still the same error:

 cgminer version 2.10.4 - Started: [2013-01-31 19:46:14] CPU Algo: c
--------------------------------------------------------------------------------
 (5s):125.6K (avg):126.3Kh/s | Q:17  A:0  R:0  HW:0  E:0%  U:0.0/m
 ST: 2  SS: 0  DW: 32  NB: 2  LW: 52  GF: 0  RF: 0  WU: 0.0
 Connected to 50.31.149.57 diff 1 with stratum as user bensguild_raspberry
 Block: 0396df81411ed4b8...  Diff:2.97M  Started: [19:50:41]  Best share: 0
--------------------------------------------------------------------------------
 [P]ool management [ S ] ettings [D]isplay options [Q]uit
 CPU 0:                | 126.4K/126.3Kh/s | A:0 R:0 HW:0 U:0.00/m
--------------------------------------------------------------------------------

 [2013-01-31 19:46:13] Started cgminer 2.10.4
 [2013-01-31 19:46:13] Loaded configuration file /opt/minepeon/etc/cgminer.conf
 [2013-01-31 19:46:13] Found unknown ztex board
 [2013-01-31 19:46:14] Probing for an alive pool
 [2013-01-31 19:46:14] Switching pool 0 http://btcguild.com:8332 to stratum+tcp:
//50.31.149.57:3333
 [2013-01-31 19:46:19] API running in IP access mode on port 4028
 [2013-01-31 19:50:41] Stratum from pool 0 detected new block

I could connect via a browser and change the URL, username and password so I think I am running the new version. You asked before when I last updated my firmware, I then assumed you meant the firmware for the Raspi, but maybe you meant the Ztex board. I will try to run it from a windows pc with cgminer and then connect it to the Raspi without switching off the Raspi.

Ehhhh, the real question is: http://www.willitblend.com

I will try the new image when it is available.
I updated the raspi before I swapped 'my' SDcard with 'yours'.
My pleasure 

I got my Raspi with a Ztex 1.15x connected and I get "Found unknown ztex board" error. I am using a powered usb hub connected to the raspi. Logitech wireless usb dongle and ztex connected to the usb hub. This is the info I see with screen -r:

 cgminer version 2.10.4 - Started: [2013-01-23 20:11:44] CPU Algo: c
--------------------------------------------------------------------------------
 (5s):128.6K (avg):128.1Kh/s | Q:39  A:0  R:0  HW:0  E:0%  U:0.0/m
 ST: 3  SS: 0  DW: 23  NB: 2  LW: 0  GF: 0  RF: 0  WU: 0.0
 Connected to none diff 1 with LP as user xxx
 Block: 03db2bf99a709eb4...  Diff:2.97M  Started: [20:13:05]  Best share: 0
--------------------------------------------------------------------------------
 [P]ool management ettings [D]isplay options [Q]uit
 CPU 0:                | 128.5K/128.1Kh/s | A:0 R:0 HW:0 U:0.00/m
--------------------------------------------------------------------------------

 [2013-01-23 20:11:43] Started cgminer 2.10.4
 [2013-01-23 20:11:43] Loaded configuration file /root/cgminer-fpga.conf
 [2013-01-23 20:11:43] Found unknown ztex board
 [2013-01-23 20:11:43] Probing for an alive pool
 [2013-01-23 20:11:44] Long-polling activated for http://mergedmining.btcguild.c
om:8332/LP/
 [2013-01-23 20:11:49] API running in local read access mode on port 4028
 [2013-01-23 20:13:01] LONGPOLL from pool 0 requested work restart
 [2013-01-23 20:13:05] LONGPOLL from pool 0 detected new block
 [2013-01-23 20:13:07] LONGPOLL from pool 0 requested work restart
 [2013-01-23 20:13:08] LONGPOLL from pool 0 requested work restart
 [2013-01-23 20:13:09] LONGPOLL from pool 0 requested work restart
 [2013-01-23 20:13:11] LONGPOLL from pool 0 requested work restart
 [2013-01-23 20:16:20] LONGPOLL from pool 0 requested work restart

:-(

I have a Raspi B with a Ztex board and will test your Linux this week.
One question: Do you know about the USB problems of the Raspi and have you checked the many forum threads about them, for example http://www.raspberrypi.org/phpBB3/viewtopic.php?t=12097 or https://bitcointalk.org/index.php?topic=118669.0 ?

THIS IS AN OLD POST. Please read further in this thread to get more up-to-date info!



I have a 5 quad and 1 single Ztex FPGA tower including power supply and fans for sale.

It is hashing over 4,2GH/s using about 240W at 220V.

I wanted to mine 750BTC and am close to my goal now.

So I want to try and sell the tower and am looking for 500BTC so I have a nice round number to stash till retirement.  

I will pay package and transport cost and you have to agree to a mutually trusted escrow.

The picture is not up-to-date, I am improving the looks by using fixed size spacers between the boards.  

Offers in PM, I will update this message with highest bid without mentioning the bidders name.

miners are active again, website still down

Since about 20 minutes I am getting connection problems to deepbit.net  , both my miners and browser are N/A

Any one else seeing the same ?

The page should have <code> surrounding the new text for the syslinux.cfg ! I copy/pasted it as it is and now I have to fill the USB key again because with the contents of syslinux.cfg as shown, it gives Initial menu has no LABEL entries!  

I would have changed it myself if I could  

Edit: Actually I could edit the file, it is in the root of the USB key :-)

Did you create the persistence file ?

http://www.linuxcoin.co.uk/wiki/index.php/Persistence

I think it is simple to ROUGHLY determine how much Bitcoins you can expect from a new to build mining rig. Make a configuration overview and calculate the expected number of Ghashes you would get by using https://en.bitcoin.it/wiki/Mining_hardware_comparison#20_Popular_Mining_Cards and call this number MYHASHES.

Now go to http://bitcoinwatch.com/ and look at the lower left and read the Network Hashrate Gigahashs/s number, call this TOTALHASHES.
On that same page you also see Blocks last 24h, call this TOTALBLOCKS.

The number of Bitcoins in a block is currently 50, call this BLOCKSIZE. This will drop to 25 in 2013 and halve again every next 4 years.

The average number of Bitcoins you can expect to mine on a day is then:

MYHASHES / (TOTALHASHES + MYHASHES) * TOTALBLOCKS * BLOCKSIZE

Now that you have a ROUGH idea, calculate the hardware cost and estimate the energy (http://www.coolermaster.outervision.com/index.jsp)  you're gonna use to run the rig and to keep it at a reasonable temperature (AC ?). Is the place you want to put the rig capable to supply this amount of energy ?

You can go to https://mtgox.com/trade/history to get an idea of the US$ <-> Bitcoin exchange rate.

After all this, you should have a rough idea of your bright or not future ;-)

Any suggestions and improvements are welcome :-) Don't shoot me right away, this is my first post and I am a miner since a few days *grins* after reading a lot about Bitcoins, mining, etc.

The above formula gives a good value for my own situation.

Oh, and also take into account if you really want all the noise of the high rev fans of the graphics cards.....

Hi Mod,

I would like to request to get my newbie status lifted. I have been reading the forum for a while, and felt the need to reply in the topic "If you're thinking buying mining hardware, read this first", so registered and then found out I couldn't because I am a newbie *grins*

Oh and my reply would be:

I think it is simple to ROUGHLY determine how much Bitcoins you can expect from a new to build mining rig. Make a configuration overview and calculate the expected number of Ghashes you would get by using https://en.bitcoin.it/wiki/Mining_hardware_comparison#20_Popular_Mining_Cards and call this number MYHASHES.

Now go to http://bitcoinwatch.com/ and look at the lower left and read the Network Hashrate Gigahashs/s number, call this TOTALHASHES.
On that same page you also see Blocks last 24h, call this TOTALBLOCKS.

The number of Bitcoins in a block is currently 50, call this BLOCKSIZE. This will drop to 25 in 2013 and halve again every next 4 years.

The average number of Bitcoins you can expect to mine on a day is then:

MYHASHES / (TOTALHASHES + MYHASHES) * TOTALBLOCKS * BLOCKSIZE

Now that you have a ROUGH idea, calculate the hardware cost and estimate the energy (http://www.coolermaster.outervision.com/index.jsp)  you're gonna use to run the rig and to keep it at a reasonable temperature (AC ?). Is the place you want to put the rig capable to supply this amount of energy ?

You can go to https://mtgox.com/trade/history to get an idea of the US$ <-> Bitcoin exchange rate.

After all this, you should have a rough idea of your bright or not future ;-)

Any suggestions and improvements are welcome :-) Don't shoot me right away, this is my first post and I am a miner since a few days *grins* after reading a lot about Bitcoins, mining, etc.

The above formula gives a good value for my own situation.