Timothy Kim60 said:I have a question regarding power supplies. I know people constantly bring up high-quality brands and "actual 400W or 500W" ratings. So, what exactly is the deal with those cheaper units—do they just lack the wattage they claim to have on the box?
To be specific, I’m running an old LC- b400 ATX Max 400w for my total system load
And if a power supply is subpar—what actually happens? Does it kill the processor, the GPU, and everything else, or does it just die by itself?
Well, let's put it this way... using a low-quality power supply means there is a higher probability that when it eventually fails, it takes something else inside the PC down with it. Most decent power supplies include protection circuits—which, granted, aren't 100% foolproof—but they are significantly safer than the budget options. Quality components aren't cheap, and those parts are what ensure the unit lasts longer, which in turn protects your computer. They also handle heavy loads much better. For instance, a Corsair VX450w could likely pull up to 600w if pushed, whereas those cheap units might struggle to even reach the 400w they claim on the label, let alone actually deliver it...