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I'm writing a mini-review on this PSU that I got today. Due to screenshot limits in regular threads I decided to put the screenshots here. I'll link to it from the hardware subforum. The main reason I got this PSU was to be not dependent on the nVidia power adapter for my 4090. As many probably have read this adapter has gotten quite a lot of heat (pun intended) from various tech YouTubers and hardware sites due to its poor design that make it susceptible to overheating and melting. Some key points for the new ATX 3.0 standard: The main new feature with ATX 3.0 PSUs is the inclusion of the 12VHPWR PCIe connector which supports ATX 3.0 and PCIe Gen5 standards. It is is capable of withstanding power failure caused by a running graphics card’s instantaneous peak power consumption, whilst providing higher stability and efficiency power output for high-end systems. The 12VHPWR PCIe connector (550mm) A picture of my previous setup. I'm replacing the Corsair RM850x on the left. The one on the right is a Corsair RM750x. The SilverStone in place. It has a smaller form factor hence cable management is easier. The 12VHPWR connected to the 4090. No more need for the infamous nVidia power adapter that came with the MSI 4090. The 12VHPWR replaced all these cables. Corsair PCIe 8-pins on the right that were connected to CableMod extension cables. The latter connected to the nVidia adapter that connected to the GPU. Booted into Windows and ran a FurMark stress test. Temperatures relatively high but FurMark is an extreme situation. Max power usage 334W, average 323W. Note: I've got an unusual PSU setup as I'm using two PSUs. The new one - Silverstone 850W ATX 3.0 - powers the 4090 and motherboard. The Corsair RM750x powers the CPU, fans and LEDs. All the storage units are NVMe M.2 SSDs connected directly to the motherboard.
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Is this a reasonable assumption: for Kaby Lake builds with one 1080Ti a 650W PSU is sufficient or 850W for SLI?
