MSI Unveils MEG Ai1300P PCIE5, First Power Supply to Support PCIe 5.0 and ATX 3.0

MSI has officially unveiled the MEG Ai1300P PCIE5 Power Supply, the first PSU to comply with PCIe 5.0 and ATX 3.0 standards. This novelty has already flashed in earlier leakshowever, as part of the official announcement, the manufacturer spoke regarding it in more detail.

Image Source: MSI

Since graphics accelerators are becoming more and more “gluttonous” with each generation, the requirements for the quality of power supplies are also growing. According to MSI, the MEG Ai1300P PCIE5 complies with the ATX 3.0 standard and all the necessary criteria for a high-quality PSU that can ensure stable operation of even the most powerful next generation graphics cards.

The ATX 3.0 standard for existing power supplies was introduced by Intel. In short, the main differences of the standard are to ensure maximum reliability and higher efficiency compared to the ATX 2.0 standard PSU, as well as the ability to transfer up to 600 watts of power to the graphics subsystem if necessary.

In addition, the ATX 3.0 standard introduces a new PCIe 5.0 12VHPWR power connector, which differs from the usual 6- and 8-pin connectors by using a 16-pin connector (according to the 12 + 4 scheme).

Many current power supplies do not fully support the ATX 3.0 standard and therefore require the use of a special adapter that will allow you to connect three to four regular 8-pin PCIe power cables to one new PCIe 5.0 12VHPWR connector. The MSI MEG Ai1300P PCIE5 power supply does not have this problem, since in addition to several conventional 8-pin PCIe connectors, it is equipped with a separate 12+4-pin PCIe 5.0 12VHPWR connector and a new PCIe 5.0 cable.

One PCIe 5.0 12VHPWR slot is capable of delivering up to 600W of power to the graphics accelerator. But with reference to the PCI-SIG organization, MSI notes that modern video cards have a maximum peak (short-term) power consumption indicator that can be three times higher than the declared TDP. This can be a serious problem, for example, in the case of the current flagship GeForce RTX 3090 Ti accelerator or in the case of future generations of video cards.

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In a press release, MSI refers to rumors that NVIDIA’s next-generation flagship graphics cards will be able to consume up to 600W of power. At the same time, bursts of power consumption in new-generation accelerators, according to MSI, can reach 1800 watts. As the manufacturer explains, these bursts of power usually last no more than 100 microseconds, but can put a very serious load on the PC as a whole, especially when using an insufficiently powerful and reliable PSU.

For MSI MEG Ai1300P PCIE5 PSUs, these peak power spikes are not a problem. With a rated power of 1300 W, the novelty is able to withstand currents with a power twice as high. The MSI MEG Ai1300P PCIE5 is stable at 120%, 160%, and 180% over rated power, which is in line with Intel’s ATX 3.0 requirements.

To fully comply with the ATX 3.0 standard, power supplies must also meet certain timing requirements. As shown in the table below, MSI MEG Ai1300P PCIE5 meets these requirements.

Unfortunately, the manufacturer did not specify when the MEG Ai1300P PCIE5 power supply will go on sale. Nothing is known regarding the cost of new items either.

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