I'm in the process of building a computer for a friend, and we're thinking of using a refurbished RTX 3070 from Newegg along with either a Ryzen 5 5600 or Ryzen 7 5700X, depending on pricing. We're pairing this with a B550 motherboard, and I estimate we'll need around 320 watts. Therefore, I'm looking at power supplies between 600-700 watts with an 80+ Gold rating. However, I have little experience with power supplies and I'm a bit intimidated by them. I've heard they can be problematic due to defective units and varying quality across brands and certifications.
While browsing Newegg, I want to know how to choose the right connectors—specifically the difference between 20+4, 24, and 24+8 pin connectors—since the B550 board needs a 24-pin connector. Does it really matter which one I pick? Additionally, I'm confused about the PCIe connectors. What should I be looking for in that regard? Lastly, I have questions about modularity. What is the difference between modular and non-modular designs, and which is generally preferable? Lastly, which brands are known for making reliable PSUs?
4 Answers
You can't go wrong with the Montech Century II 850W. It's solid quality at about $90, which is a great price point for the performance you’ll get. You’ll have peace of mind using it!
When choosing connectors, you'll be safe with a 20+4 or 24 pin option; the 20+4 just means it can separate for other uses. For PCIe, you need enough connectors for your GPU—usually you'll want at least a couple for higher wattage PSUs. As for modularity, fully modular PSUs are great for managing cables since you'd only connect what you need, but they can cost a bit more. I've found semi-modular options to be a good compromise. Check out reliability ratings on specific models; I can share a good source if you’re interested!
I recently picked up a Cooler Master MWE Gold and it’s been fantastic. You can find them around $90, and they come in several wattage options. You’ll want something in the 650-750 watt range to be safe. Also, stay clear of used power supplies—they're not worth the risk!
Honestly, just grab something that’s rated at A on most PSU tier lists. It’s a straightforward way to ensure quality. Brands like EVGA, Corsair, and Seasonic have a solid reputation, and I personally haven’t had issues with them. Always check reviews for specific models before hitting that buy button!
Yeah, I've used an EVGA 700BR with a 5600 and 3070 for a while without any issues. They really stand the test of time.