Igor's Lab conducted an in-depth analysis of the power management system of the new NVIDIA GeForce RTX 5090 graphics card, including the way the card draws peak power within the tolerances of the ATX 3.1 specification. This analysis should prove particularly useful for those still on older ATX v2.51...
It feels like the only talented engineers left at NV are the team who designed the cooler for the 5090. Everyone else cashed out at the 1T plus valuation, and it shows in what they were able to accomplish with a significant bandwidth, core increase and 30% power budget bump. At some point “we’ll sort it out with software” hits a brick wall.
Other than that, those spikes are unremarkable and within spec. Connectors are still going to melt tho, 550-600w sustained is a lot of power.