Question What happens if u have a under power PSU?

atljsf

Honorable
BANNED
if you put a big load on a low power psu or it turn itself off or it could burn itself, melt cables inside, nothing nice

if you don't know the brand of the psu, is probably a bad psu, replace psu for a good quality psu to avoid fire, burnt parts or sudden shutdons of the pc
 

winks42

Commendable
Sep 22, 2018
408
2
1,315
100
A bad quality PSU will be the worst thing to do, it is likely that it will fry some if not all of your components in your pc. An underpowered PSU wont be able to be under load and simply wont work
 

Mezoxin

Great
Nov 3, 2019
161
21
95
4
I'm doing research
There are alot of variables though the effects may not be clearly visible at a small pool of data , and this is why certain parameters are specified by guidlines (derived from years and years of past experiences ) to reduce the probability of an undesired event to an acceptable level
 

Karadjgne

Titan
Herald
A pc only draws what it needs, no matter what psu. So at idle you'll see very low draws, 50w or less at times. No big deal for any psu. Light usage even on a RTX2080ti and 9900k is the same, only using a fraction of what's available at the psu. It's only when running high % use, hard driving the cpu and gpu that things change. Sudden spikes can over draw smaller psus, psus pushed to limits can fail to supply enough voltage or amperage so wattage draws from the others, creating issues, even total failure where the gpu shutdown due to lack of power. It's simply bad news all around to use an under-rated psu.
 

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