Buying a new psu
Buying a new psu
I'm considering purchasing a new PSU and am evaluating between a TX-1300 ATX 3.0 and a Vertex PX-1200 from Seasonic. I'm leaning toward the TX because cost isn't a major concern and it offers better efficiency. Before making a decision, I should decide whether to buy the ATX 3.0 now or wait. I came across a Reddit discussion suggesting a 3.1 version of the TX will be released at the end of Q2 2024. Is the ATX 3.1 backward compatible? What am I overlooking if I don't?
It seems to vary based on the power requirements you need. For typical single GPU setups, 850W works well, while top-tier cards usually require about 1000W. The main update for ATX 3.0 is handling bigger power surges from devices, something previous standards didn't address. Pin changes between 3.0 and 3.1 include adjustments to the 12VHPWR connector—longer power pins and shorter connection sense pins—to avoid damage from partially connected cables. The power rating also increased slightly from 600W to 675W. Currently, no one produces a PSU that delivers over 600W, and most GPUs don't reach that level even with modifications, making the difference minimal in real use. As long as you use proper connectors and avoid extreme conditions, an ATX 3.0 power supply is perfectly fine.
Seasonic? You're paying a huge price for their products! Check out this chart of the top-tested 850W PSUs.