Technical Articles

Practical articles, in-depth tutorials, and architectural insights on software engineering, AI, and systems.

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How to test backlight circuit with multimeter

Learn how to diagnose backlight driver failures and boost diodes in LCD monitor power supplies using a standard digital multimeter on the workbench.

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Eletrônica•6 min

How to test Schottky diodes on a board with a multimeter

Learn the practical bench step-by-step to identify shorted or leaky Schottky diodes in switching power supplies using the semiconductor scale.

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Eletrônica•7 min

How to test LDO voltage regulator on board with multimeter

Learn how to troubleshoot low dropout linear regulators (LDO) on printed circuit boards using a multimeter to find short or open circuits.

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EletrônicaHardware•4 min

How to measure current with a multimeter safely

Learn how to configure your multimeter for DC current measurements safely. Understand why series measurement is vital and how to prevent board damage.

HardwareDevOps•4 min

How to monitor and limit server power consumption using IPMI

Learn how to monitor electrical telemetry and set power consumption limits on physical servers using IPMI in local infrastructure.

DevOpsHardware•4 min

How to repair corrupted GPT partition tables with gdisk

Learn step by step how to restore corrupted GPT partitions using the gdisk tool on Linux, repairing damaged headers and secondary backups.

EletrônicaHardware•5 min

How to test BIOS chip voltage on motherboards with a multimeter

Learn how to identify power delivery failures on motherboards by measuring VCC pins on SPI Flash memory chips using a digital multimeter.

EletrônicaHardware•2 min

M.2 SSD not detected? How to test the 3.3V slot voltage

Is your M.2 SSD missing? Learn how to diagnose power issues on the 3.3V rail of the M.2 slot using a multimeter to identify motherboard failures.

EletrônicaHardware•4 min

How to test PC fan PWM signal with a multimeter

Learn how to troubleshoot PWM fan control issues using a standard multimeter. Identify if your motherboard is sending the correct speed signal without needing an oscilloscope.

RedesHardware•2 min

Network slow? How to find packet loops with Wireshark

Is your network freezing due to broadcast storms? Learn how to use Wireshark and port mirroring to trace and eliminate switching loops in your corporate network.

EletrônicaHardware•3 min

How to test a quartz crystal oscillator with an oscilloscope

Learn how to diagnose clock failures in microcontrollers using an oscilloscope. A practical guide to verifying crystal resonance on your workbench.

EletrônicaHardware•3 min

How to Clean Retro Console Cartridges and Slots Safely

Learn the professional way to remove oxidation and debris from classic cartridge pins and console slots to keep your vintage collection working perfectly.

EletrônicaHardware•3 min

How to test a MOSFET on board with a multimeter: guide

Learn how to detect shorts and leakages in MOSFET transistors directly on the board. A practical guide for fast diagnostics in PSUs and motherboards.