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Author Topic: ReUse of ZTEX FPGA 1.15y Boards - profitable LTC Mining (Guide)  (Read 20215 times)
bitcoinminer42
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January 30, 2014, 02:49:52 PM
Last edit: January 30, 2014, 03:09:11 PM by bitcoinminer42
 #1

Hi Forum,

in the past I had some ZTEX FPGA Boards to mine BTC.
Now i reactivated them using LTC Mining. And hey... it's profitable ;-)
(approx. 64kHs/1.15y-board)

Step-by-step guide for Linux systems:
(<xxx> are placeholders ;-)

1. check out cgminer
   git clone https://github.com/ckolivas/cgminer.git

2. get version 3.1.1
   git checkout v3.1.1

3. checkout FPGA Litecoin Miner
   git clone https://github.com/kramble/FPGA-Litecoin-Miner.git

4. copy patch to cgminer
   cp experimental/Ztex-1-15y/cgminer-3.1.1/* <your cgminer base path>

5. copy binary to cgminer bitstreams (override original)
   cp experimental/Ztex-1-15y/ztex_ufm1_15y1-ltc-v04-1core-ucf-46-fmax-46.bit <your cgminer base path>/bitstreams/ztex_ufm1_15y1.bit

6. configure cgminer
   ./autogen.sh
   CFLAGS="-O2" ./configure --enable-ztex --enable-icarus --enable-scrypt --disable-opencl

7. compile and install cgminer
   make
   sudo make install

tested with ubuntu 12.04 and 2 original ZTEX 1.15y2 boards

WARNING: may damage your board... (i run it since 3 days without probs...)

more informations:
cgminer v3.1.1: https://github.com/ckolivas/cgminer/blob/v3.1.1/README
cgminer patch:  https://github.com/kramble/FPGA-Litecoin-Miner/blob/master/experimental/Ztex-1-15y/cgminer-3.1.1/README.txt


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bitcoinminer42
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January 30, 2014, 09:10:00 PM
Last edit: February 01, 2014, 08:31:22 PM by bitcoinminer42
 #2

now running a bunch of ZTEX 1.15y2 boards (hopefully) without problems.

each board takes approx. 24W/64kHs

edit: heatsinks remains cold. maybe i could try a fanless run :-)

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February 01, 2014, 08:25:30 PM
 #3

one of them will run this night without fans. tomorrow i'll see stats about hashing power and report them ;-)

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February 01, 2014, 08:55:33 PM
 #4

At 64kh, isn't it better to just ebay them? I'm showing a payback period of >290 days, assuming zero difficulty increases...
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February 01, 2014, 09:21:39 PM
 #5

where can I buy these boards used?
DAoneNonlyG
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February 01, 2014, 09:43:37 PM
 #6

where can I buy these boards used?

got 5 ztex quads (1 with only 3 cores working), 19 ztex singles and 10 enterpoint cm1...
located in germany... pn if intressted...
bitcoinminer42
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February 04, 2014, 07:42:28 PM
 #7

one of them will run this night without fans. tomorrow i'll see stats about hashing power and report them ;-)

running fanless without any problems nor overheating

At 64kh, isn't it better to just ebay them? I'm showing a payback period of >290 days, assuming zero difficulty increases...

at this time it's not profitable to sell SPARTAN-6 boards as they are more worth than people are willing to pay.
if someone want to buy... PN me with your offer


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April 01, 2014, 03:45:23 PM
 #8

Hi,

I'm trying to get this running on my ztex 1.15y fpga boards and I'm getting following invalid nonce errors:

 [2014-04-01 17:42:23] ZTEX 0015-01-08-3: entering poll loop                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-1: entering poll loop                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-2: checkNonce failed for 0181301E hash7 1488598D                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-2: exit 0181301E                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-4: checkNonce failed for 0180D945 hash7 52440EE0                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-4: exit 0180D945                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-2: entering poll loop                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-3: checkNonce failed for 0180E45E hash7 683B6788                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-3: exit 0180E45E                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-4: entering poll loop                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-1: checkNonce failed for 0180EE33 hash7 9752A937                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-1: exit 0180EE33                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-3: entering poll loop                   
 [2014-04-01 17:42:23] ZTEX 0015-01-08-1: entering poll loop   

I have forced the frequency to 100MHz (lowest setting possible) and still getting this.
Anyone have and idea where to look?

thx a lot
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April 01, 2014, 03:50:17 PM
 #9

now running a bunch of ZTEX 1.15y2 boards (hopefully) without problems.

each board takes approx. 24W/64kHs

edit: heatsinks remains cold. maybe i could try a fanless run :-)

64KH? hmmmm

I think its more profitable to by those AUD-$45 : LTC/BTC Usb Dual miners 70KHs and it uses much less power than 24w Even that it will probably make u 2 cents a day << Just a guesstimate lol
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