I'm upgrading my setup from a 1050 Ti to an MSI Ventus 2070 OC, and I'm wondering if my 450W power supply will be sufficient. Most PSU calculators suggest that between 350W and 410W is fine, which has made me a bit skeptical. I do plan on upgrading to a 600W PSU within the next year, but I'd like to hear some opinions on whether the current one can handle the load in the meantime.
4 Answers
It's worth noting that the quality of the PSU can be just as important as the wattage. Does your 450W PSU have an 8-pin PCI-E connector? If it's a decent quality unit, it might be fine, but if it's a lower-quality PSU, steer clear of a GPU requiring dedicated power.
Absolutely, build quality matters. If you have a better PSU, like a BeQuiet! model, keep it. But if you have a cheaper one, you might want to upgrade sooner.
The official specs for the RTX 2070 recommend a 450W PSU, and those numbers are often conservative. So, it should be okay, though I personally wouldn't feel entirely comfortable with it. I actually ran a 2080 on a 550W PSU without issues.
Thanks for the insight! I was considering undervolting if I run into any issues.
It’s likely that it’ll be fine, but it’s hard to say for sure. My suggestion is to install MSI Afterburner and run your GPU on silent mode, limiting the power to around 90-92% until you can upgrade the PSU.
Good idea, thank you!
It could work, but it really depends on your setup. What CPU are you using? How many hard drives do you have? The specific 450W model matters too. If it's a solid unit like a BeQuiet! with a low-wattage CPU (like a Ryzen 3600), you should be fine, but if you have an i9 with a cheaper PSU, watch out! Also, don't use adapters for power connectors if the PSU isn't equipped with enough.
I'm using a Corsair CV450 with an i5 9500, so I shouldn't be too power-hungry.

Yes, it has an 8-pin PCI-E connector and it's a Corsair CV450.