This is a guide on how to rent a Scrypt mining rig to secure the Mincoin network while earning mincoins, through Mining Rig Rentals (https://www.miningrigrentals.com/).

Create an account here: https://www.miningrigrentals.com/register

Add Two-Factor Authentication for additional security to your MiningRigRentals account so your coins and account information are more secure

Start by Clicking Settings on the Top Right below your handle (mine, in this case, is lovetolearn)

This is where you'll end up: https://www.miningrigrentals.com/account/settings

Then, scroll down to where it says 2FACTOR AUTHENTICATION as shown in the screenshot below.

Scan that with FreeOTP+, Authy, or Google Authenticator, or any trustworthy/credible/familiar 2FA App you'd like to use.

Then, enter the Authentication code you get as a result, along with your Account PIN CODE, then click the green Enable button, and your MRR account will now be more secure. Congrats!

Send Bitcoin, Bitcoin Cash, Litecoin, Ethereum, or Dash to the appropriate MRR cryptocurrency address

This document is a work in progress. Any help with screenshots showing arrows pointing to what is needed for a step, or screenshots with highlights of important things to look for (like website URL sources, file size, publisher, and date published, hashes and signatures, etc) would be very much appreciated.

Best Regards,

ltl

This is a tutorial around creating Mincoin Paper Wallets, as well as a tutorial on how to check any txes, if any, may be associated with a Paper Wallet. Hope you find this useful!

Go to https://github.com/mincoin/minaddress.org

Click on the green Clone or Download button

Click on Download ZIP

When you see a pop-up window that says Opening minaddress.org-master.zip You have chosen to open: minaddress.org-master.zip which is: Zip archive from: https://codeload.github.com What should Firefox do with this file? Click Open with Archive Manager (default) , then click OK

From the File Manager application that should now pop up, click on the minaddress.org-master folder

Once you are here,

Click on index.html

Then, turn off all connections from the outside world to the device that you are using to create the paper wallet.

***Do not send any other cryptocurrencies to an MNC address, ever - doing so will result in your coins being lost forever.

This document is currently a work in progress. Any thoughts, suggestions, comments, concerns, questions, or screenshots, may be posted in this thread as a reply.

Best Regards,

ltl

Solo Mining MinCoin            A Guide For Solo Mining MinCoin

First sign-up to a different MNC pool than the one you already use and create a worker account.

Adding a failover pool from within cgminer/sgminer:

• From the main cgminer/sgminer screen hit 'P' to access the Pool Management menu.
• If it says "Failover only disabled", hit 'F' to enable failover only.
• Press 'A' to add another pool.
• Enter the information that it asks for.  Complete URL including port,  ie:
• You can save the new config ('S' from the main menu, then 'W'rite config file)

Add additional lines to your cgminer/sgminer .conf file:

If you prefer to edit the config file by hand, add the backup pool below your primary pool (order is important):

"pools" : [
{
"user" : "USERNAME.WORKER",
"pass" : "PASSWORD"
},
{
"user" : "USERNAME.WORKER",
"pass" : "PASSWORD"
}
]

Also make sure the failover setting is set true:

"failover-only" : true,

Unfortunately for those using cudaminer for NVidia cards, it does not [yet] have fail-over support built-in, but it is on the author's TODO list.

As if the alt-coin-community has completely ignored the fact that Mac's GPU power is on record as having been the best of the best, for decades.

I've taken my Mac to the edge of space and back in high altitude and micro-gravity flights for accurate data collection. I've used it to calculate all aspects of Military applications, and I've even used it to code Windows and Linux software to enble mass product production using cheaper disposeable equipment for military applications.

Now I'm retired from all of that, but my Mac is still hard at work, mining alt-coins and doing it fairly competitively dispite the lack of support from the Alt-Coin-Community.

The first thing I noticed in mining was that there are only 2 Mac based miners out there, that obey the Mac coding minimums as required by Apple, GUIminer is one, athough it doesn't do very well, and Asteroid.app (http://asteroidapp.com/)

Asteroid App is also the only miner that will do scrypt mining, as opposed to Mac-GUIminer which holds the poclbm SHA256 mining software only, dispite the abilities of it's Windows and Linux counterparts.

Step 1) Download Asteroid App.

Step 2) Open a mining account on MinCoinPool.com

Step 3) Open AsteroidApp and set your GPU miners to the mincoinpool GETWORK server and port, with the credentials from your account.

Step 4) Set AsteroidApp to open at Startup, and restart your Mac.

Step four is the step that took me the most time to figure out. Even though I had stopped the miner from starting when it first opened, the app still leaves an insance of the minerd running in the background. When you change settings however, it attempts to open a new process for minerd miner which is, lets just say, not healthy for your mac.

By rebooting once you have your settings completed, you eliminate this bottleneck hazzard and AsteroidApp will restart and run smoothly on the new settings.

-Jarl

Litecoin is a cryptocurrency that uses an alternative, memory hard hashing algorithm called scrypt that was devised by mathematics' prodigy Colin Percival. The algorithm utilizes SHA256 and a stream function called salsa20 to force devices that mine it to either use a lot of memory or use dramatically more ALU cycles to perform a hash.  With the parameters used in Litecoin's implementation of scrypt (N = 1024; p = 1; r = 1), each thread uses approximately 64-128 KB depending on the settings for lookup_gap and thread_concurrency in the mining program when mining with a GPU.  Because GPUs have such fast memory (bandwidth in the hundreds of GB/s) and roughly 128-512 KB of RAM per stream processor, they are ideal for mining Litecoin.  This requirement for fast memory in order to mine quickly results in Litecoin being FPGA and ASIC resistant; although ASICs may one day come out for Litecoin, they are not expected to garner the same performance increases as for Bitcoin (two orders of magnitude more efficient).

Mining

The major factor which impacts hash rate/hardware errors is the thread_concurrency.  The second most important factor for some cards is the ratio of core speed to memory speed.  Typically optimum values of thread_concurrency are a multiple of 64 and vary per card and per card family (see below).  The (core speed/memory speed) quotient should be 0.8 or less for 5xxx/6xxx cards and 0.7 or less for most 7xxx cards.  Some evidence suggests that different 7xxx cards may have different ideal core:memory clock ratios, too.

GUIMiner-scrypt is out!  Comes with all settings in this thread and all miners.  No more command line interfaces!  Try it here.

For all series cards,
Install AMD APP SDK: http://developer.amd.com/tools/hc/AMDAPPSDK/downloads/Pages/default.aspx
Install latest AMD drivers: http://support.amd.com/us/gpudownload/Pages/index.aspx
or
Use current recommend AMD driver (12.8):
13.1 32-bit
13.1 64-bit
AVOID 12.10 DRIVERS, THEY SEEM TO BREAK LITECOIN PERFORMANCE. 13.X SEEM TO BE OKAY.

5xxx series cards
Use cgminer.
Command line to run:

You can use pretty much any thread_concurrency between 1536 and 8192 that is a multiple of 64. Some people recommend using 4 or 5 * the number of SPs.  You can find those in the table here: http://en.wikipedia.org/wiki/Evergreen_(GPU_family) (1st number in core config)

Recommended thread concurrencies for
57xx cards: 2368-4096 (3200 is common)
58xx cards: 4096-8192 (5600, 7168, and 8000 are common)
5970 card: 4096-8192 (5632 or 8000 are common)

Typical 5xxx series performance: 0.255 kh/s/shader

6xxx series cards
Use cgminer.
Command line to run:

You can use pretty much any thread_concurrency between 1536 and 8192 that is a multiple of 64.  Some people recommend using 4 or 5 * the number of SPs.  You can find those in the table here: http://en.wikipedia.org/wiki/Northern_Islands_(GPU_family) (1st number in core config)

Recommended thread concurrencies for
67xx cards: 2368-4096 (3200 is common)
68xx cards: 3008-6144 (4800 is common)
69xx cards: 4096-8192 (5600, 7168, and 8000 are common)
6990 card: 4096-8192 (5632 or 8000 are common)

Typical 6xxx series performance: 0.313 kh/s/shader

7xxx series cards
Use reaper or cgminer versions 2.11.3 and up (see update below).  Set thread_concurrency to somewhere slightly below 64 * bus_width_of_card_in_bits.  So, for a 7950, that would be 64 * 384 = 24576; ideal values are 21712 or 24000.  Find your bus width here: http://en.wikipedia.org/wiki/Southern_Islands_(GPU_family)

To find the optimum thread_concurrency for your card, you will need to search above and below this estimate ideal value and see what is fastest.

If you'd like to use reaper, follow the steps below.

Make reaper.conf the following:

device ? must be added for every card you have to avoid using the CPU as well to mine.  Make sure when reaper starts that it states that the CPU platform is disabled.  CPU mining does not work correctly and may actually slow down GPU mining with reaper.

Example configuration (550kh/s, 7950) of litecoin.conf:

Save litecoin.conf and run reaper.exe.

The 7xxx series can be tricky, for instance the 7770 seems to have an optimum thread concurrency of 8000 and works fine with cgminer and an intensity of 16 (I get 191kh/s with those settings).  The 79xx cards should be amenable to the configuration above and are the fastest possible cards you can mine with.

Optimal thread concurrencies for 7xxx family:
7770: 8000 (200 kh/s, aggression 19)
7850: ????
7870: 15360 (400 kh/s, aggression 19)
7950: 21712 or 24000 (~575 kh/s)
7970 (cgminer): 22392 (~700 kh/s can be obtained with a core/memory ratio of 0.57)
7970 (reaper): 20992, 21712, or 24000 (~
7750: ????
7770: 8000 (200 kh/s, aggression 19)
7850: ????
7870: 15360 (400 kh/s, aggression 19)
7950: 21712 or 24000 (~575 kh/s)
7970 (cgminer): 22392 (~700 kh/s can be obtained with a core/memory ratio of 0.57) or 8192 (-g 2 -w 256 -I 13)
7970 (reaper): 20992, 21712, or 24000 (~650 kh/s can be obtained with reaper and core/memory ratio of 0.57, e.g. 900 MHz core and 1580 MHz memory.  Over 725 KH/s can be achieved with memory overvolting.)

Typical 7xxx series performance: 0.321 kh/s/shader

If reaper crashes periodically on a single card, use the following python script to keep it alive (starts reaper, runs for two hours, shuts it down, then restarts it):

This seems to fix the problem for my 3x 7950 rig.

Update: 3-20-13
cgminer versions 2.11.3 and up can be used to mine with high thread concurrencies now.  Follow these instructions:
WINDOWS: Open console and type

Now, close the console (it will not work if you open cgminer in the same window).  Open cgminer using a .bat or a new console, high thread concurrencies will now work.

LINUX: Open terminal and type

Now high thread concurrencies should work in cgminer.

TABLE OF USER REPORTED HASH RATES AND SETTINGS
https://github.com/litecoin-project/litecoin/wiki/Mining-hardware-comparison

CARD MEMORY SPEED SETTINGS
Usually it is most effective to have the memory speed of the card equal to or greater than the core clock speed.  For some cards this is more important than others, but this is generally true.  From experimental data for a 7770, a (core speed)/(memory speed) ratio of 0.7 or less is recommended.

HETEROGENEOUS MIXTURES OF CARDS
CGMINER: Use a comma to separate thread-concurrency values, eg. --thread-concurrency 3200,8000.  Values correspond to the card number in zeroeth order.
REAPER: Run multiple instances of reaper.  To do this, clone the folder and then add "device x" to reaper.conf, where x is the number for the card in zeroeth order.

RAM REQUIREMENTS ON-MOTHERBOARD
The equivalent amount of system RAM as for the sum of all the vRAM used by the GPUs is required when mining with reaper.  For instance, 3x 5970s mining with thread_concurrency values of 8000 each would require 3x 500MB = 1500MB system ram (plus additional RAM for the OS).  The memory requirements for 7xxx cards are also higher because of larger thread_concurrency values, for instance a thread_concurrency of 24000 means 1.5GB system RAM per card is required.

THREADS PER GPU
Some people state that increased hash rates are experienced upon increasing the number of threads per GPU in 5xxx series cards (-g # in cgminer or threads_per_gpu # in reaper).  That has not been my experience with 6xxx or 7xxx cards, but you can try it and see if it helps out your hash rate.

STRATUM  MINING
Supported by some pools (ltcmine.ru, notroll.in, coinotron.com) in order to reduce the number of stales.  Typical results moving from JSON getwork to stratum is a reduction in stales from 1.5% to 0.5%.  If you use reaper, you need to use a fork which is available here and a stratum proxy

Run proxy program with this command for reaper:

Then run reaper with the following host:

and your normal user/password for the pool.

SOLO MINING
For large hash rates.  Go here: https://bitcointalk.org/index.php?topic=83371.0
The guide works the same for unix as well more or less.

• GPU (for this particular tutorial) - â€œThe workhorse. Think of it as the miner with a pickaxe or the heavy drilling machinery.”

1. Ensure you have updated to latest drivers for your card:
   http://support.amd.com/us/gpudownload/Pages/index.aspx
2. You will also need to download the AMD SDK to run GUIMiner, can be found here:
   http://developer.amd.com/tools/hc/AMDAPPSDK/downloads/Pages/default.aspx

1. Ensure you have updated to the latest drivers for your card:
   http://www.nvidia.com/Download/index.aspx?lang=en-us.
2. You will also need to download and install the Nvidia CUDA toolkit to run GUIMiner, can be found here:
   https://developer.nvidia.com/cuda-downloads

• Computer with Windows (for this particular tutorial)

• MinCoin Client

• Mining software – “The Mining Foreman: Instructs the miners on where and how to mine”