Introduction
With computers (and users) asking for better mac g3 power supply, nothing more natural than reviewing websites publishing power supply reviews. But contrary to other hardware parts like CPUs, motherboards and video cards, one must have deep electronics knowledge in order to test a power supply. Since most reviewers are simply users with a above-the-average knowledge in computers – but not in electronics – almost all PSU reviews posted on the web are completely wrong and they do more harm than good, as some websites recommend products that are really flawed. In this article we will explain in details why 99% of power supply reviews posted on the web are wrong and we hope that reviewers learn more about the subject by reading this article and also that users learn how to identify a bad review.
The methodology most used to review mac g4 power supply is just adding a multimeter on the power supply outputs and measuring if there are any fluctuations on the voltages found there. Some websites even compare the voltages found with voltage levels found on competing products. The problem is, this procedure is wrong and tells us nothing about the power supply.
The most common problem with dell power supply is their incapability of delivering their labeled current (and thus power). Measuring the output voltages will tell us nothing about this. Reviewers that do reviews like this probably think that at least they can see if there is any fluctuation on the hp power supply outputs, however in reality they simply won’t be able to measure this.
The idea of measuring a power supply with a multimeter comes from linear power supplies, where the power supply has a separated voltage regulator circuit (normally done by an integrated circuit or by a zener diode, sometimes with the aid of a power transistor). In this kind of mac g3 ac adapter it makes sense to use the multimeter to check whether the regulator circuit is working fine or not. Even in this case, simply attaching the multimeter won’t let you know if the power supply is being able to provide its labeled current/power. You will need to add a load to the power supply outputs.
http://www.hardwaresecrets.com/article/410/1



