GAMEMAX 1300W Power Supply, ATX 3.0 & PCIE 5.0 Ready, 80+ Platinum Certified

I have power for days! This thing is a beast of a power supply. Seems super durable, 100% modular, looks great, no loud fans and functions with the best of them. I haven't had it long enough to comment on durability, but I imagine it will last years! If you need all the power for your pc, then you need this!

John Mix · 2026-02-17 · via amazon

Picked this up in mid-October 2025 to power a customer build specific to the Threadripper PRO 5955WX workstation running four GPUs in an ASUS ProArt case. About six weeks in now and it's been rock solid. ATX 3.0 and PCIe 5.0 support were key factors: I needed headroom for current and future GPU configurations without worrying about transient spikes causing shutdowns. The 1300W capacity handles the full system load with room to spare, and the 80+ Platinum efficiency keeps the power bill reasonable given that this machine runs extended AI training workloads. PSU fan noise is present under heavy load but not obnoxious. Quieter than I expected for a unit pushing this much wattage. Modular cabling made routing manageable even with four GPUs worth of cables in an already crowded case. No coil whine, no weird behavior, no complaints. It just works. For a high-TDP workstation build where reliability matters, this is an easy recommendation. And a double-take on the price point.

Long Strategic Advisors LLC · 2025-11-30 · via amazon

Solid PSU, I have purchased two, one in May 2025 and one in July 2025. Used one to replace an RX1000e Corsair, and another for a friend's PC build. I have recommended this PSU to others in my gaming community for its value. I know of two who made the purchase and have had no regrets. Under full load, the PSU fan makes no noticeable noise vs. what I got from the prior PSU. I used it with AMD builds and Intel builds with Nvidia GPUs. Wires and connectors are good. No issues there. Solid build quality and weight.

Ken Bee · 2025-12-30 · via amazon

!!!DO NOT BUY THIS PSU IT WILL FRY YOUR SYSTEM OR DAMAGE IT SEVERELY!!! I have had this PSU for around 6 months, and it does NOT supply 1300W, nowhere NEAR that! Further, it is exceedingly unstable and your system will abruptly crash at any moment. Not only that, but this PSU is so inconsistent it will send a power surge to your board and fry EVERYTHING! !!!DO NOT BUY THIS PSU IT WILL FRY YOUR SYSTEM OR DAMAGE IT SEVERELY!!!

Aaron · 2025-06-29 · via amazon

I can't understand people being skeptical of this brand, but I have the 1050w a-rgb in my 12700k build without any problems--I mined ETH with a 3090Ti FE. So when I decided to build my latest 9800x3d with a 5080 aorus Master ice, I didn't hesitate to come back looking for gamemax. Nose level is low. I haven't put it through a high stress test yet (awaiting kryosheets), but I'll run Doom: Dark Ages when it's here.

aznxmoss · 2025-06-08 · via amazon

Best Buy

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MSI

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Newegg

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Newegg (Open Box)

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