Question RTX3080 650w PS Computer dies same time I do, twice.

[lakedude]

I've got a 3950x / RTX3080 being powered by an EA650 serving a Quest 2 VR wirelessly. After some concerns were raised I limited the GPU power to 75%.

The rig has been running perfect/stable in benchmarks and in Alyx. Butter smooth after a 5GHz wifi upgrade.

So I'm playing Alyx on high with ultra textures and everything working great until I drop a live grenade and decide to practice the achievement "Deadly Catch." I grab the grenade with the gravity gloves but it is too late so I die in game with grenade in hand. At the precise moment the grenade should have gone off the computer shuts off which is a weird feeling in VR.

I was quite happy to observe no damage when after a delay the computer came back to life.

I checked the MSI Afterburner settings to discover the power was at 100%. Does that need to be manually set every time?

I manually turn the power down to 75% and apply using the checkmark, then I repeat the adventure, purposely holding a live grenade and BAM the computer dies again!

 

[psolord]

The thread title made me think that the psu exploded and killed its owner, which was ok up to that point, although I did have some questions raised, regarding who started this thread if he was dead. Even so, I was willing to let it pass, but the fun started when I got to the "twice" part! xD

 

[Stuka87]

The thread title made me think that the psu exploded and killed its owner, which was ok up to that point, although I did have some questions raised, regarding who started this thread if he was dead. Even so, I was willing to let it pass, but the fun started when I got to the "twice" part! xD

I thought the same thing! It certainly made me more interested in looking in here.

 

[Muadib]

Thanks for the chuckies I got from this thread. They were unexpected, but apricated. Enjoy the new PS!

 

[NWRMidnight]

Update:

I finally got back to the same spot in the game, level 4 Superweapon and the computer didn't die with the SuperNOVA 850 but curiously neither did I. One grenade is not enough to kill you if you have good health to begin with. Also curiously the maximum wattage I could get the 3080 to pull according to HWMonitor was about 327 watts or about 25 watts less than the max it had with the EA650 so not sure why the grenade caused the computer to shutdown with the EA650 unless it was a spike too fast for HWMonitor to measure or something.

The SuperNOVA 850 came with a shorting harness to test the PS out of the system which was kinda cool. I knew right away what the little dongle was for despite not RTFM.

Actually, it is expected. When you are pushing a power supply to it's limits and beyond, it is putting out dirty power, which in turn causes your gpu to pull more power in an attempt to compensate and try to stay stable. It's all part of the power management of the gpu.