Use the screws from the previous power supply if you’re replacing it, otherwise the screws should have come with either your PC case or the power supply itself. If something isn’t plugging in all the way, check the orientation of the plug; all of the multi-pin cables should only be able to fit one way. The best PSU for gaming is likely not the first component on your dream gaming PC build list, but it is an absolutely vital cog in your gaming machine. These are the monsters that can power high-end CPUs, multiple GPUs, arrays of storage drives, and a wind tunnel’s worth of cooling fans, stretching from 900 watts all the way up to 1200 watts and beyond. 1-16 of 536 results for "500w pc power supply" Thermaltake Smart 500W 80+ White Certified PSU, Continuous Power with 120mm Ultra Quiet Cooling Fan, ATX 12V V2.3/EPS 12V Active PFC Power Supply PS-SPD-0500NPCWUS-W Prime members enjoy FREE Delivery and exclusive access to music, movies, TV shows, original audio series, and Kindle books. Good news — You can still get free 2-day shipping, free pickup, & more. Here are the power requirements for the rest of our test build’s components: Based on these general figures, we can estimate that the How-To Geek desktop won’t use more than 350 watts under its full load. The amount of power a power supply delivers is measured in watts. Many power supplies offer a rail or adapters for these, but if the model you’ve chosen doesn’t, Molex adapters are cheap and easy to find. These fit into almost all full-sized desktop computers, and you’ll find them ranging in power from around 300 watts all the way up to 850 watts. These include “small form factor” cases and those that are meant to hold smaller standardized motherboards, like Micro-ATX and Mini-ITX. Since we launched in 2006, our articles have been read more than 1 billion times. © 2020 LifeSavvy Media. You’ll also have to select a model that fits in your PC, and one that has the correct cables (rails) to fit your components. Also, keeping cables as tidy as you can not only looks better, it helps promote good airflow inside your case and makes components easier for you to get to in the future. As you’re plugging in components, be wary of where you run the power cables. These components are fairly standardized: motherboard, motherboard-CPU, storage drives and disc drives, GPU (if applicable), and case fans or radiators (if they’re not already plugged in). Remove these screws (two or three on a side), then pull back the access panels and set them aside. Oops! Let’s break it down. If the exhaust fan blows out the back of the case, it doesn’t matter. ), If you go even smaller, things tend to get non-standardized, and you’ll want to look for a replacement for your specific model.