Efficient Cooling for Profitable Crypto Mining at Home

Big guys operating huge mining farms enjoy economies of scale and low energy cost. For residential miners to stay profitable, efficient cooling is critical. Especially so during  crypto bear market …

Mining Pods using HP Z620, CentOS 7.4, and CUDA 9.1

Below is a complete recipe how to build stylish, efficient and quiet mining pods from scratch. It is my second try at building crypto coin mining systems, after using a …

Configuring Netis WF2419 as 300Mbps N Wireless Bridge

The Netis WF2419 is a miraculously low cost (only about $13) excellent value wireless bridge/repeater/router. It can be used as wireless client, and includes a 4-port switch. This is great …

Getting Started Transacting Securely in Monero (XMR)

  Note: Monero goes through periodical scheduled hard forks for making system upgrades. Check https://getmonero.org/downloads/ for the latest versions and SHA256 hashes. As of April 2018 the version is 0.12.0.0 (Lithium …

Thermal Design of Crypto Mining and Multi-GPU Rigs

When using computers with large number of GPU cards, cooling and thermal management quickly becomes a major headache. Here we discuss an approach of building rigs with rudimentary but still …

Mining Ethereum and Other Coin on NVIDIA CUDA Cards

Mining crypto currencies such as Ethereum without specialized hardware such as ASICs is still possible with powerful video cards, or GPUs. No-one know for how long this will continue, and …

Unattended Kickstart Installation of CentOS 7 that Works

If you need to install CentOS 7 frequently, with the same configuration, build your own DVD media for unattended kickstart installation. We show you how to make it work. As of CentOS …

Temperature Control for less than Twenty Dollars

Temperature controller modules from China can be found on Amazon or Ebay for only about $15. A few more dollars and you can build your controller. CONTROLLER TYPES Controllers with relays that turn on or …

Reliable Storage of Critical Data at Home with ZFS on FreeBSD

In this article we will use ZFS, Zettabyte Filing System, and FreeBSD to create a reliable storage of your data, on a network attached storage (NAS) server. For managing ZFS refer …

Building a Low-Cost Personal Data Center in the Attic

If you are tired of listening to the humming of your computer equipment, looking at the cable mess, and having all that stuff taking up precious space in your office …