Friday, June 24th 2022
MSI MEG Ai1300P and Ai1000P Power Supplies Leaked, Optimized for GPU Power Spikes
MSI is readying a line of high-end "smart" power supplies under the MEG Ai P-series. Some of the most relevant slides from its launch presentation were leaked to the web. courtesy g01d3nm4ng0. The PSUs feature ATX 3.0 and PCI-Express Gen 5.0 readiness, including native PCI-Express 16-pin 12VHPWR connectors that are capable of delivering 600 W of power. The lineup includes two models—the Ai1300P (1300 W), and Ai1000P (1000 W).
A key aspect of these PSUs' ATX 3.0 specification compliance is their ability to handle power excursions (spikes in load) from GPUs, ranging between 1 to 10 milliseconds in interval. Specifically, these PSUs can handle GPU power excursions that are up to 3x the nameplate load (eg: a GPU with 450 W typical power pulling 1350 W spikes). In some of the older PSUs, excursions are known to trigger the overload protection and shut down the system. The MSI MEG Ai P-series PSUs can handle excursions that are up to 2x the PSU's nameplate capacity (eg: 2600 W for the 1300 W model); and 3x that of the 16-pin connector (i.e. 1800 W). These spikes typically have a extremely narrow interval, and so they don't threaten the integrity of the circuits.
Another interesting feature of the MSI MEG Ai P-series is the ability for the user to monitor the various runtime electrical and thermal parameters of the PSU using the Gamer Intelligence app. The PSU interfaces with software via a USB 2.0 connection (internal header). The app lets you monitor load on the various voltage rails, real-time switching efficiency, fan speed, etc. There's no word on when MSI plans to launch these.
Sources:
g01d3nm4ng0 (Twitter), VideoCardz
A key aspect of these PSUs' ATX 3.0 specification compliance is their ability to handle power excursions (spikes in load) from GPUs, ranging between 1 to 10 milliseconds in interval. Specifically, these PSUs can handle GPU power excursions that are up to 3x the nameplate load (eg: a GPU with 450 W typical power pulling 1350 W spikes). In some of the older PSUs, excursions are known to trigger the overload protection and shut down the system. The MSI MEG Ai P-series PSUs can handle excursions that are up to 2x the PSU's nameplate capacity (eg: 2600 W for the 1300 W model); and 3x that of the 16-pin connector (i.e. 1800 W). These spikes typically have a extremely narrow interval, and so they don't threaten the integrity of the circuits.
28 Comments on MSI MEG Ai1300P and Ai1000P Power Supplies Leaked, Optimized for GPU Power Spikes
Does not mean fully compliant/exceeds ATX 3.0 specifications.
PS My current Antec 750w psu is almost 12 years old, still working 24/7, still noiseless.
Or we could all just say no to absurd GPU's.
I´m probably not the only one who has run into issues with that stupidity, while needing USB headers for liquid cooling and case
And you can always undervolt - actually that will be the best practice from now on - limiting the crazy wattage.
You can't just slap a 12VHPWR connector on a PSU (which isn't even necessary since the two "sense" wires just need to terminate to ground) and say it's ATX 3.0 compliant.