u/dullmemes

I bought my prebuilt back in 2021 and wanted to try upgrading, but I need to know the current wattage. The listing is gone and I don't seem to have any emails regarding the order, so it's hard to figure out if I have proper wattage or will need to upgrade my psu.

The sticker on the back says it's an "i Series G249A659 020921", but I can't find the specific model anywhere and I can't access the power supply without getting a different screwdriver for the case screws.

B460M DS3H
RX 580
16GB
i5-10400F @ 2.90 GHz

I want to upgrade my GPU and thought about the RTX 3060Ti.

However, I can't tell if I'm able to connect the 3060 to my power supply since it needs a 12-pin cable and there's only the 8-pin and MAYBE a 6+2 PCIe. I also cannot tell the wattage because of how it's situated inside the case and I'm avoiding touching the interior as much as possible.

I'm not sure if I will need an adapter to fix this, if the 3060 will come with an adapter already (manual wasn't clear enough?? i guess it's an 8-pin??), or just upgrade the psu on top of everything else to be safe?