MSI Introduces World's First ATX 3.0 PSU, Ready for 2,600W Power Spikes

(Image credit: MSI)

MSI has introduced the world's first fully compliant ATX 3.0 power supply: the MEG Ai1300P PCIE5. This unit is designed for power-hungry next-gen GPUs, and can withstand 2,600W power spikes. 

ATX 3.0, which was finalized back in February, is Intel's latest power supply standard. The new standard notably supports the brand-new 16-pin 12VHPWR power connector, which allows for up to 600W of power consumption from a single cable. ATX 3.0 also introduces a number of new power specifications, with improved efficiency and reliability ratings and a much higher tolerance for power spikes. 

MSI's new MEG Ai1300P PCIE5 features higher quality components compared to previous designs. MSI says the unit can handle up to double its power, or 2,600W, and is designed to counteract the large power spikes expected on next-gen GPU hardware. 

Power spike issues are already concerning on Nvidia's latest RTX 30 series GPUs — the RTX 3090 and RTX 3090 Ti can see power spikes as high as 660W, while the RTX 3080 can see spikes of up to 530W, according to Gamers Nexus.

Current power supplies are designed to sustain brief power spikes beyond their rated power specifications. But with the 30 series GPUs, these spikes have become problematic to the point where some units will shut off due to over-protection limitations (rarely, but it does happen from time to time). And with reports suggesting next-gen GPUs will almost double the power consumption ratings of current-gen GPUs, it's not too much of a stretch to assume their power spikes will be just as bad, if not worse. 

A 2,600W power spike is the maximum limit the new power supply can handle — and it can only endure a spike like this for under a millisecond. But this time increases greatly for lower power spikes: the unit can sustain a 2,340W power spike for 1ms, a 2,080W power spike for 10ms, and a 1,560W power spike for 100ms. 

MSI's MEG Ai1300P PCIE5 is the first, and currently only, power supply that fully complies with the ATX 3.0 standard. However, more ATX 3.0-compliant units should hit the market soon, as we get closer and closer to the release of Nvidia's 40 series and AMD's Radeon RX 7000 series GPUs.

Aaron Klotz
Freelance News Writer

Aaron Klotz is a freelance writer for Tom’s Hardware US, covering news topics related to computer hardware such as CPUs, and graphics cards.

  • If they avoided speculation on price can't wait to see what these are going to run :oops:
  • peachpuff
    Please don't burn down my house Nvidia, my breakers are only 15amps!
  • peachpuff said:
    Please don't burn down my house Nvidia, my breakers are only 15amps!

    Lmfao you made my day with this comment. :ROFLMAO:
  • Roland Of Gilead
    Gamer Nexus did a great job with this report: The Brewing Problem with GPU Power Design | Transients - YouTube

    It's something that's cropped it's head up many times in recent weeks for RTX high end purchasers on Tom's.

    Although the recently announced down grade in power usage (RTX4070 @285w, and 4080 @320w)is good for most system builders/gamers with systems at that level, I'd expect the 4090/ti/Titan might well make good use of this PSU! 2600w!!! Wow.
  • demonicus
    Geez that may blow out my wall i gonna have to have the breaker box and everything in the house replaced just to use it.
  • tummybunny

    I'm sick of companies 'announcing' or 'introducing' vapourware months and months before anything happens. When will this be available to buy from a store?
  • hannibal
    So 2600W will be the new minimum for gaming PSU... /s
    Really need to upgrade my wimpy 850w psu...
  • Dragos Manea
    Everybody expects to draw from socket 2600W, no, it does not work like that, it is a 1300W PSU with very very big Capacitors which can handle a spike of 2600W but the extra power is supported by capacitors and of course by the mosfets too, not the socket, the socket has to stand up for only 1300W.
  • Roland Of Gilead
    Precisely. They mentioned it's the components that can take these increases in power spikes 'up to' 2600w, and only for a split second. That's not to say, the PSU is 2600w.
  • edzieba
    A shame ATX 12VO didn't become ATX 3.0. The few watts of legacy voltages could be provided by a plug-in adapter for older motherboards still using the 24-pin ATX connector (12VO boards can use a simple passive adapter), and everyone else could omit that bulky carbuncle entirely.
    Switching to 48V only operation would have been even nicer (thinner cables due to reduced current, more efficient PSUs, etc), but more of a compatibility break requiring mobo and GPU VRM circuitry to come in two different revisions.