temporarly replacing a power supply with a smaller one

[Valentin 004]

Hi.

I few months ago I built my first PC, and after a few problems it worked just fine,

but as I wanted to turn it on today, it no longer seemed to work.

I think, that the PSU is broken and I need to get an replacement for it.

I still got warranty for it so thats no ploblem. However, i dont want to wait 

4 weeks for the company to return that damn power supply. So I asked my friends

if they could borrow me one.

 

I could put in a 450W corsair power supply. but I dont know if this is gonna work.

My current setup is:

Ryzen 9 5900X

MSI MAG B550 Tomahawk

rtx 3080

32GB RAM

Samsung 980 PRO

be quiet Straight Power 11 1000W

 

 

I´d only use it for small tasks and wouldn´t play games on it, so I dont use tooo much power.

 

Do you think that this would work even though it way undersized.

[Absydeus]

I would not recommend doing this.

Try a power calculator to get a rough estimate. I'd suggest 100W as a safety net so you want to be 100W above it's calculations.

https://www.coolermaster.com/power-supply-calculator/

[Tamesh16]

450 watts is asking for trouble, be patient before you end up with a fire or some fried components

[John Reactor]

If you really would not run any games on it you shuld be fine.

 

[dilpickle]

3080 is known to have insane power spikes so I would not risk it. Even if you are not gaming you never know when Windows might fire it up.

 

If you had integrated graphics I would have said remove the video card.

[Mark Kaine]

nope not a good idea. 

and i would also wonder why your current psu is defective?  i had a straight power 11, it wasn't defective,  it was just shit.

 

 

24 minutes ago, dilpickle said:

Even if you are not gaming you never know when Windows might fire it up

yup, windows loves abusing the gpu in short bursts, for "reasons", just funny it never did that with a non rtx card...

[bcredeur97]

if you also remove your GPU, sure. 

[MarkCaplan]

as suggested above, you could borrow a low power GPU like HD5450, HD8570, Quadro K620 etc. This is exactly the situation where an iGPU would shine.