I currently have a PC that has a Intel i5-6500, Nvidia GTK 1060 3GB, HyperX Fury 8GB. The power supply I have is Corsair VS550w, but it recently broke, and no longer works. So I am currently using a secondary old cheap power supply I had laying around, that is 450w, and it doesn't have a PCI-e adapter, so I can't connect my GPU to it, so at the moment I'm only using IGPU. I am thinking of upgrading my machine in the near future as well to probably a AMD Ryzen 7 5000 series and 16GB ram GPU might stay the same for the time. But if I'll get a new I'll go with a 1660 or 2060, somewhere in the xx60 series. I'm wondering how much watt power supply should I get now, for future proofing? should I go with 550w or higher? As I do need to buy a power supply right now because I need my GPU to work.

  • 550 - 600 W will be sufficient with your plans. You can get IDE / SATA -> PCIe power adapters though.
    – towe
    Commented Jul 14, 2021 at 6:43
  • Thanks, I bought 550w PSU, working great so far. What are the IDE/SATA PCIe power adapter for?
    – apoorv569
    Commented Jul 14, 2021 at 16:02
  • You could've used some of the additional connectors (for HDDs / drives etc.) to power your CPU.
    – towe
    Commented Jul 19, 2021 at 4:52
  • @towe Sorry but I don't understand what you just said. What additional connectors are you talking about? My CPU was powered fine before I purchased this new PSU. There were not enough SATA power connector on the older one, and I could not connect my GPI as it didn't had the PCIe connector.
    – apoorv569
    Commented Jul 19, 2021 at 5:20

1 Answer 1


Enter your desired system specs into an online system power calculator. Two of the many online are: https://pc-builds.com/psu/ https://outervision.com/power-supply-calculator

How much overhead you want above this depends on on several factors, some of which are discussed, and some of which are built into the calculator sites.

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