I'm monitoring my PSU with HWINFO
On the 12v Rail what is acceptable ? It usually sits at 12.024 and the lowest so far during CS GO was 11.808
You can roll a dice when it comes to reliability of software readings.
People have had software and BIOS claiming voltages which would either fry PC or be too low for operating at all.
Also those aren't good for telling how voltage regulation works for faster load transients.
And from ripple they don't tell anything.
PSU could be torturing components with excessive ripple and those average DC voltage values wouldn't budge any.
And how fast ripple increases depends on how fast capacitors wear.
Such a good thing Coolerhamster used cheap Chinese capacitors...
I mean it's better to use money for brand marketing than second tier maker components.
Wouldn't use such cheap PSU for more than three to four years in enthusiast use PC.
Well, you could also buy (oscillo)scope for checking ripple, but that costs same as multiple quality PSUs.