Computer power supply units are designed to both power your computer's components and protect them from minor surges. But too large of a surge will blow a PSU's fuse and render a computer powerless, ...

How to test your PSU to see if it is dead or alive. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. If your computer is behaving strangely or ...

1] Does the PSU fan spin on startup? Some users reported that their Power Supply Unit fan spins on startup but stops after some time. Others reported that the PSU fan does not spin even on startup.

When your bench supply's capacitors are all charged up with nowhere for that charge to go, an active down-programmer is a handy technique that brings rise and fall times back into a viable range. Here ...

When you encounter a BIOS POST error code (head over to Oracle.com for a list of POST codes and their descriptions), it’s usually accompanied by a single or more ...

Standard ATX power supplies aren't designed to turn on unless they are properly connected to a motherboard. This helps to ensure that they can't power up and damage computer components if the plug isn ...

If you have access to a dead computer power supply you can use the case, power switch, wiring, and power port along with a 5v lead acid battery and a landscaping lamp bulb to create a rechargeable ...

Most electrical engineers believe they have a good understanding of power supplies because they are relatively simple, single-function DC devices designed to output controlled voltages. However, there ...

Configuring a custom gaming PC is both fun and rigorous work. First, you get to research your components –- case, motherboard, CPU, GPU, memory, storage, peripherals, cooling, and power supply unit.

One application that uses a precision power supply and DMM involves characterizing the current drawn by a device or circuit board at different voltage levels. Figure 1 shows a typical setup. Engineers ...