Question PSU: MSI MPG A850G PCIE5 or Super Flower LEADEX PLATINUM SE 1000W

Sep 9, 2024
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MSI's PSU page says it holds up during Power Excursions:

View: https://imgur.com/a/eJKEiCh


Super Flower PSU has the same feature or is it some kind of protection ?

Money isnt the question here, because I can buy both PSUs for the same price right now and I'd like to get SF, but I wanna hear opinions first.

Sorry for grammar.

Rig:

Msi b450 tomahawk max

Ryzen 3700x+noctua dh-15s

Rtx 4070 ti super, 3 separate cables to 12vhpwr.

Psu - Seasonic X series SS-750km3 (750w gold, old model)

32 gb ram

Case - lancool 216

1 hdd drive, 2 sata ssd, 1 m2 ssd

Win 11, latest build

Just bought 2k 27" monitor. Played risk of rain 2 with my friends. Then ran benchmarks in rdr 2, cyberpunk. I had my card undervolted a bit, CP77 didnt like it, reverted to stock. Ran benchmark with path tracing, dlss, frame gen, full package. Proceeded to play. Temps of gpu and cpu were 60-67c. Gpu load 100%, cpu 40-60%. Power draw gpu ~245W, cpu ~60W. After several minutes in game pc shut down again. Next time faster, next time during intro screens. When psu's protection (allegedly) works, I cant turn on pc again, without turning off outlet for at least 15 sec. Then it turns on like nothing happened.

A little backstory. Ran ghostrunner 2 max settings on previous 1080p 24" screen with no issues.

Ive tried flashing fresh bios, changing power plan, using max performance mode in Nvidia control panel. No luck. Now pc shut it down on cp77 loading screen, in DBD lobby. I can browse internet, watch youtube, play smth very light, indie.

Probably important note. I'm from Ukraine, we have power outages often. Recently I also bought brand new Samsung 990 pro 2tb nvme ssd. Installed it. Maybe I did smth wrong but after outage, when electricity was back, pc would flash for a sec, then turn off and start only after mentioned above outlet turn off. Then playing games from my new ssd, everything freeze at one moment (it was again risk of rain 2 on stage transition), steam will show errors, when trying to verify game files integrity or opening other games, installing games on ssd. Then the disk disappear from the windows. Not showing up in bios upon restart. Thought maybe i f'd up connection or smth. Reinstalled disk, showed up again, games were still there. problem with starting pc after outage gone. The next day the same thing, same game, this time I tried to turn off pc, outlet, power back on - disk showing up. Downloaded Samsung magician, no firmware update, no errors, all good. Moved RoR2 to hdd. Didnt have issues for some time, but recently was playing Dead by Daylight, installed on SSD and the game froze on the loading screen. Couldnt alt tab or switch to another window. Was able to log off, then return to windows and the disk was visible.

Will provide any additional info if required.