Category Archives: Bitcoin Mining

Review of USB Block Eruptors – Bitcoin Mining Hardware

Happy Holidays everyone,

As 2013 is coming to a close, I’m reviewing Mining Hardware as part of my research to build a Enterprise-level Bitcoin Mining Hardware operation. The current device most readily available is the USB Block Eruptor, which can generate about 330 Mh/s each. When used with a 49 Port USB Block Eruptor Hub like this one:


You can expect it to produce 330 Mh/s x 50 USB Block Eruptors = 16500 kh/s
Translated into current bitcoin mining performance, using this handy Dashboard caluclator from Genesis Block this means you can expect it to produce 16.8 Gh/s.

Unfortunately this will not be enough to cover the cost of the initial hardware, even when generating $147 a month at the current difficulty rates.

Screen Shot 2013-12-28 at 1.29.08 PM

And to make things even more complex, the difficulty rates change in 4.4 days increasing to 16.8% resulting in a lower ROI over time – that $147 generated is going to $126.51 and lower as difficulty increases.

To really get the return on investment out of Bitcoin mining, you have to go for the top-line, newest ASIC hardware.
bitcoin difficulty predictions 2014

#Bitcoin #Litecoin Mining with a Mac

If you’re like me and have a Mac computer you’d like to set-up as a Mining rig, here’s some things to keep in mind:

– Bitcoin mining is generally done with ASIC computer chips, these are not your average chips as ASIC hardware is the type of processor traditionally found in laboratory computer equipment, digital cameras, and industrial computers. They are meant to process data loads and provide data outputs.
Example: Avalon and KnC ASICs

– but it is possible to mine with off-the-shelf computer hardware and gaming-type graphics cards, also known as a GPU (Graphics Processing Unit)

Litecoin mining is done with GPUs as it’s not as data heavy, less difficulty, and higher ROI per hash rate vs.
power consumption.


1. Find out the make/model of your graphics card

– this is the main hardware used in ‘mining’ and the speed/power of your graphics card will determine your hash rate

2. Check your graphics card against this chart below, it’s for Litecoin mining rigs but it will give you an idea of what kind of hash rate you can achieve:

3. Download your Mining software
Bitcoin: CG Miner
Litecoin: Asteroid miner

4. Download a temperature gauge and control for your computer

– this is key when mining with a Mac as the compact design of these computers doesn’t give a lot of ventilation and overheating can be a problem

5. Install both the Mining and Temperature software

6. Try to avoid using the computer for anything else when it’s mining

– expect it to act like you have a virus, it should be slow to respond to mouse/keyboard clicks and you should hear the computer working furiously

7. Keep your hash rate at top speed by figuring out what the optimum priority level is with the mining software and your GPU capabilities

– May need to play around with this, typically it’s not the maximum level setting to achieve the right balance of hash rate vs. processing vs. temperature

That’s it for mining with a Mac, besides setting up a wallet and joining a pool you’re good to go!

What is #Bitcoin Mining?

What is Bitcoin Mining?

Well if you could combine computers to process heaps of information that overtime eventually breaks down the information into blocks – that is Bitcoin Mining.

I started getting into it after I first read about it online, and since then I have been researching, blogging, sharing about Bitcoin Mining.

To paraphrase from someone who also tried to help newbies understand this concept:

“I’m not an expert on Bitcoin or anything, in fact I consider myself a newbie at this point in time. However being a newbie myself, I found that information regarding this relatively new and very technical topic is scarce and difficult to find. After many days of searching the net and forums I found myself still within the vicinity of where I started to get a general idea of how things work, and also realized that there isn’t a whole lot of information sharing going on when newbies keep asking the same questions instead of finding out for themselves.

However with that said, I may be one of the more experienced members and players in Bitcoin to help with this guide so that it may in turn help the newcomers. In my own experience, it is very difficult to come into the Bitcoin scene and I found that this guide has been long overdue, I believe as this guide becomes more comprehensive and complete it helps more people to get into Bitcoin and in turn help Bitcoin to grow toward it’s vision.

This guide is by no means complete, suggestions and recommendations are welcome, I’m not as technically inclined as many that I’ve found so I’m asking for help to consolidate information that would help people get into Bitcoin easier and faster.”

Beginner’s Guide to #Bitcoin Mining

  • 9. Advance Tweaks & Discussion
  • There have been rising demand in answers about making miner’s more efficient in areas such as cost, hash rate and power consumption. One main area of such discussion is the overclocking of GPUs while still maintain stability and temperature, this is a very specialized field where the layman would not normally cross. Fortunately, the mining community is in abundance of experts in OC and many analysis have been done in other fields as well. I’ll be linking to some more involved tweaks and analysis in this section for those who are getting serious about mining.
  • 10. Bitcoin Thesaurus
    I thought of starting a Thesaurus since some of these terms have been quite often asked all around the forum. Please help to contribute words and better explanations for them Smiley

    • BTC – The unit we use for bitcoins, just like USD, JPY, EUR, SGD, RM, GBP, etc.
    • Blocks –
    • Difficulty –
    • Mining – The hashing of bitcoin blocks in exchange for the creation of more coins and/or transaction fees
    • Miners – The software used to do mining, there are CPU miners and GPU miners. Both are programmed to make use of different processing units to compute the hash
    • Stales/Rejects –
    • Rig – Computer
    • Dedicated Mining Rig – Computer built solely for the purpose of mining
    • Gaming Rig – Computer built mainly for the purpose of gaming
    • Mining/Gaming Rig – A hybrid of the above, since the hardware requirements for both overlaps each other. When a gaming rig is idling, it can be use to do bitcoin mining
    • PSU – Power Supply Unit
    • MOBO – Motherboard
    • CPU – Central Processing Unit, or Processor
    • GPU – Graphics Processing Unit, or Graphics card
    • Overclocking (OC) –
    • Overvolting –
    • Unvolting –
    • Memory Clocking –

Courtesy of

Bitcoin USB Block Eruptors – the Quickest way to start Mining

If you’re set on trying out this Bitcoin mining thing, I recommend starting with the USB Miners.
– They’re inexpensive
– Easy to manage
– It works

Unlike the expensive bitcoin mining rigs which bit mining professionals are known to use, USB Miners are efficient for the amount of hashes per second it generates and for the power consumption it requires. They’re quiet so its great if you’re going to be putting a mining rig in your house/apartment/office, and if one breaks down you don’t have to perform any complicated tasks to find and remove the faulty Eruptor.

You can expect to make about $9/Week with 1 x USB Miner

Bear in mind that:
The current value of 1 Bitcoin is $799 USD
Difficulty Factor is 609482679.888
11.8% increase in Difficulty in 5 Days

Getting Started with Bitcoin Mining

To get started with Bitcoin Mining you need to understand that this is both an investment of your time and money.
As hardware is getting more expensive with the demand of Bitcoin and interest in commercial Mining rigs, it is going to be a factor of high demand for low supplies of the newest and greatest technology in Bitcoin Mining.

The first thing you need to do is:

1. Are you going to buy Mining equipment or try to build your own machine

2. How much money do you have

3. Are you familiar with computer hardware terminology and/or have someone that can help you

4. Where are you going to put it?
Depending on the size of your set-up, these machines have been known to produce a lot of excessive heat, noise, and vibration. Not to mention the power and internet connection needed to keep it running, these are issues that alot of people run into.

Based on how much money you have, how much time you can allocate to bitcoin mining everyday, and the location that you’re able to set-up your mining rig – you can then start looking at equipment:

5. Evaluating Mining equipment:
ASIC Miners like KNC and Avalon are quite popular and dependable for their ability to generate Bitcoins consistently with minimal hardware breakdown.

6. Compare the equipment systems based on how many hashes it can process per second
If you’re not familiar with hash rates or what this means, I will write a future post explaining this and hopefully that will help

7. Your Best Choice for Mining equipment should be based on Hash Rates, current Difficulty levels, and the cost of the Mining equipment
– Don’t forget about the power and internet bill
– The best system is one that has the most powerful hash rate, with lowest power consumption, and low cost for equipment

Best to keep your system in a cool environment with minimal ground disturbances, it’s a computer afterall and any shaking will damage the internal moving mechanisms

8. Set-up your equipment gradually, if you’re using USB Block Eruptors I recommend testing each of the USB’s first rather than just plugging them all at once and figuring out where the faulty one is later

9. Install Bitcoin Mining software
Hardware without software is like a hotdog without a bun. You’re going to need something like CGMiner to talk to your equipment and send it data to process into Bitcoin

10. Set-up Bitcoin Wallet
A place to put your Bitcoins – there’s quite a few options available, I use and bitcointerra

11. Join a Mining Pool to increase your ROI
Once your Mining Equipment is all set-up and plugged in, tested and working – it’s quite common to join a Bitcoin Mining Pool where other Miners like you are all contributing their hashing power to breaking up blocks of Bitcoin data faster.

Good luck!

Bitcoins, Litecoins, and Other Crypto-Currencies

Do you have a computer?

Then you’re able to Mine for Bitcoins.

Apparently it’s as easy as downloading a program onto a computer and having it run in the background, you can even sit around while it starts printing money.

— This is partially true, but ignores the fact that your computer will probably not make it and your electrical bill will also be a disaster.

To successfully Mine for Bitcoins, Litecoins, or Namecoins (will explain the difference in a seperate post) – you need a computer that is capable of a lot of processing speed and workload.

This means the average computer and or/laptop will not be an efficient system for long-term mining. (I’m typing to you on a MacBook Air as I write this.)

There’s special tools out there that you can purchase or assemble which will systematically generate coin for you.

These are the next steps to mining for Bitcoins:

1. Find or create a system

2. Download Mining software

3. Join a Mining pool

4. Leave system on, and plugged in

While this happens, I need a place to put all the Bitcoins once I’ve ‘earned’ them.

In a seperate post, I will talk to you about Bitcoin wallets and currency exchanges.