MSI Releases PSUs Incompatible With AMD’s Latest Graphics Cards

It has become known that the latest high-power power supplies MSI MPG A1000GS and MPG A1250GS do not support all modern graphics accelerators. The fact is that they are equipped with only one 8-pin (6+2) PCIe power connector, which may not be enough, since some video cards require several such connectors to power them.

Image source: overclock3d.net

Thus, the two new models of high-end MSI power supplies are not suitable for powering many AMD accelerators of the Radeon RX 9070 series. There are exceptions, of course, for example, the Sapphire Radeon RX 9070 XT Nitro+ and ASRock Radeon RX 9070 XT Taichi video cards are equipped with 12+4-pin power connectors, but such versions are a minority.

In fact, the MSI power supplies in question not only don’t support AMD graphics cards, but also any other graphics cards that require more than one 8-pin connector. This includes older Nvidia cards, such as many GeForce RTX 3090 cards, as well as some Intel Arc graphics cards.

It is unlikely that MSI intentionally refused to support any specific video cards in its power supplies. Most likely, the vendor sought to create power supplies with several 12+4-pin (12V-2×6) connectors, which led to a forced compromise in the design of the devices. The installation of a second 12+4-pin power connector required the abandonment of additional connectors with a 6+2 configuration. This assumption is confirmed by the fact that the MSI MPG A850GS PCIE5 power supply is equipped with one 12+4-pin connector, but at the same time has three connectors with a 6+2 configuration.

Since Nvidia has completely switched to 12+4-pin power connectors on its accelerators, MSI should consider adding more of these connectors to its powerful power supplies. The problem is that many graphics cards still come with 8-pin (6+2) power connectors. Therefore, users who buy a new power supply should pay attention to the connector configuration of the device.