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Should I Replace My Eight-Year-Old PSU During a PC Upgrade?

September 2, 2026 3 answers
Asked by MellowPine47
I'm planning a PC upgrade that includes a new SSD, a clean Windows 10 installation, a new CPU, and a new CPU cooler. My GPU was replaced a few years ago, but most of the other components have been running on the same system for about eight years. The power supply is a Corsair RM650x, rated at 650W and 80+ Gold, and it has worked reliably without any warning signs or stability problems. I'm considering replacing it because a failed PSU could potentially damage other components, but I also don't want to spend around $100 unnecessarily if the current unit still has plenty of life left. Would it make sense to replace the PSU with the rest of the upgrades, or should I keep using it until I need more power or notice a problem?
Corsair RM650x gaming PC hardware Hardware PC upgrades power supply lifespan power supply safety PSU replacement

Answers

NovaMarten6
There’s no need to replace it just because the rest of the system is being upgraded. Since it’s already a good 80+ Gold model and has been reliable, continuing to use it is reasonable as long as the total power demand stays within its limits.
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QuietBadger_31
Eight years is still perfectly reasonable for a well-built power supply. I’ve seen quality units run reliably for much longer. I’d replace yours when you move to a graphics card that needs more power, require newer connectors, or when a good deal on a replacement comes along.
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CopperFox82
I’d keep it. The RM650x is a quality unit with a 10-year warranty, so eight years of use alone isn’t a reason to replace it. Upgrade only if your new hardware needs more wattage, a newer power connector, or the PSU starts showing problems.
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