One more thing - the Corsair CX450 only has one PCI-E power connector, so I hope your GPU doesn't need more than a single 8-pin connector, and any future GPU upgrades that require more than one power connector will also need a PSU upgrade.
Alright, I would just like to now why you say my current PSU is a "fire hazard at best". I've had it for 5 years and it hasn't given me any trouble so far.
It's all about the quality of the internal components used in the PSU. It might not have given you problems till date, maybe because your system didn't draw a lot of power, or maybe simply because you've been lucky that the PSU didn't fail yet. But poor quality units have a tendency to deteriorate over time in stability, so for all you know the PSU could have been slowly damaging your components over the past 5 years, or it might straight up give up within the next few hours and take a few things out with it. You never know in case of bad PSU's.
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