Question Transient spikes

[hunterczech]

Hi.

I would like to know if GPU power spikes during PC boot-up and if so will it mind when the power supply might not be fully capable to handle GPU?

I bought 5070ti and I have very high quality, yet 6 years old 650w seasonic focus gold plus. Didn't try it yet with this Gpu as it still didnt arrive but I want to know in advance so I don't mess up PSU or the GPU.

I'm planning to undervolt the GPU so the PSU can keep up just fine however I don't know if the PSU is at risk during Pc Bootup? Can it fry itself and the GPU?

I don't know whether or not to buy new Psu. Will the PSU handle undervolted 5070ti?

Just fyi, 5070Ti is 300W tdp GPU that can spike to up to 370W.

 

[Lutfij]

I bought 5070ti and I have very high quality, yet 6 years old 650w seasonic focus gold plus. Didn't try it yet with this Gpu as it still didnt arrive but I want to know in advance so I don't mess up PSU or the GPU.
You should be looking at a 850W unit for headroom, using this as a baseline;
https://www.techpowerup.com/gpu-specs/geforce-rtx-5070-ti.c4243
to add, a 6 year old unit will not output the same amount of power as it did when it was brand new.

 

[hunterczech]

I bought 5070ti and I have very high quality, yet 6 years old 650w seasonic focus gold plus. Didn't try it yet with this Gpu as it still didnt arrive but I want to know in advance so I don't mess up PSU or the GPU.
You should be looking at a 850W unit for headroom, using this as a baseline;
https://www.techpowerup.com/gpu-specs/geforce-rtx-5070-ti.c4243
to add, a 6 year old unit will not output the same amount of power as it did when it was brand new.

Thanks for answer. Techpowerup states 700W PSU as a recommended wattage. I thought that with some undervolting it would work with 650W but i'm not sure if its safe to try. So you think its better off just straight away go and buy new one? So I suppose its dangerous to try the old one? I've heard much crazier cases than mine where people ran 4090 on 650w psu just fine.