I'm building a powerful system with an ASUS ROG Crosshair VIII X570 motherboard, Ryzen 9 5900 XT, and a Radeon RX 7900 XTX. I've got a Thermalright 360 cooler, 4 sticks of DDR4 3600 MHz RAM, 2 M.2 SSDs, 1 SATA3 2.5 SSD, and 3 HDDs. My setup also includes quite a few RGB peripherals: 3 wired RGB headsets, 1 wireless headset, an RGB keyboard, a Tartarus RGB, 2 wired RGB mice, 1 wireless RGB mouse, and a 2TB USB drive. Plus, I have a Blue microphone for streaming. Currently, I'm using an old Seasonic Prime 1000 watt 80+ Titanium PSU and wondering if I need more power or if this is sufficient?
1 Answer
1000 watts is plenty for your build. Even an 850-watt PSU would be sufficient. With all those components, you're well within the limits, especially since most of your load comes from the GPU and CPU, which doesn't max out the PSU capacity.

What about the additional 3 RGB case fans and the extra peripherals? Do they play a big role in power usage?