[SOLVED] PC crashing under stress with new GPU and PSU

[dabbingiscool]

I recently installed a new 750w psu and a 3080 in my PC. The PC now crashes when playing games on high settings (e.g. Battlefield 5 Ultra settings + Raytracing). I have tried reinstalling the graphic drivers and underclocking the GPU.

Specs are as follows:
9900KF
Z370 MB
RTX 3080
32gb DDR4
750w 80+ Gold PSU
2x SSD
3x HDD

 

[rgd1101]

brand and model of this new 750w psu?

 

[dabbingiscool]

EVGA GA 750

 

[Phaaze88]

EVGA GA 750

Article - [psucultists] PSU tier list rev. 14.8 (Final Update Jul '21)

PSU Tier List 4.0 rev. 14.8 (outdated) Last Update: 12-07-2021 Legend : Gray - EoL/obsolete and/or otherwise not recommended for purchase. Green - small form-factor (gold and blue colors are disregarded due to scarcity of SFX PSUs) Gold - best units in the tier (includes requirements for blue...

forums.tomshardware.com

The EVGA GA is under Tier B, with a [1] next to it, which says:
"Units experiencing tripping issues with high transient power draw GPUs like AMD Vega, 6900 XT and nVidia RTX3080 / 3080 Ti / 3090."
Get a different psu

 

[dabbingiscool]

Article - [psucultists] PSU tier list rev. 14.8 (Final Update Jul '21)

PSU Tier List 4.0 rev. 14.8 (outdated) Last Update: 12-07-2021 Legend : Gray - EoL/obsolete and/or otherwise not recommended for purchase. Green - small form-factor (gold and blue colors are disregarded due to scarcity of SFX PSUs) Gold - best units in the tier (includes requirements for blue...

forums.tomshardware.com

The EVGA GA is under Tier B, with a [1] next to it, which says:
"Units experiencing tripping issues with high transient power draw GPUs like AMD Vega, 6900 XT and nVidia RTX3080 / 3080 Ti / 3090."
Get a different psu

Would something like the Corsair hx750 platinum be alright or do I need something with a higher wattage?

 

[DSzymborski]

Would something like the Corsair hx750 platinum be alright or do I need something with a higher wattage?

If you already have one, it may be OK, but if you're buying something new, you should really go 850W or higher with this GPU. It's very power spiky.

 

[dabbingiscool]

Bought a 1000w PSU in the A tier list. Works fine now.

 

[rynftw]

Almost every time someone has the issue of the computer shutting off after starting a game or benchmark, it turns out to be the PSU. I could be wrong, just saying in my experience, this is most likely your PSU not being up to par. However, since the computer didn't shut completely off, and you had to turn it off yourself, this could possibly be something else.