EVGA Power Meter

Better for it to overestimate than underestimate, I liked this power calculator because it’s nice and easy to use and gives you a recommended PSU size. Comes from a well known PSU brand too.
 
This is getting far to technical for me, I only intended the power meter to be a guide. Not saying you should buy an EVGA unit but use their power meter to gauge what PSU size you might need.

Particularly helpful to those who don’t have much technical knowledge about PSUs. By all means use the meter then go ahead and buy a Corsair RM series of recommended size. I’m not an EVGA fanboy.
 
I certainly wouldn't want to run a PSU near enough maxxed out all of the time. Not only will it heat it up quickly and make more fan noise it will be running nowhere near it's peak efficiency.

I guess it’s designed to be a simple tool to help their customers choose a suitable PSU for their system from their range. It overestimates so it’s not really running maxed out all the time.
 
If you look at my system you’ll see that I’m not running a £ 1900 GPU/CPU or whatever it’s mid range at best. My PSU wasn’t 750W for £ 35 it was £ 70 including VAT and can deliver 744W on the 12v.

https://www.evga.com/products/Specs/PSU.aspx?pn=9b847cc8-dbf8-421c-aebb-45ef91000953

The PSU suits the rest of my system which was not super expensive. So I’m not spending mega bucks on a system then skimping on the PSU.

I’ve been building PCs for over 20 years and have never had a PSU blow up and take out components, the only name brand PSUs I’ve ever had was a Corsair HX 520W in 2008, an Antec Basiq 550W in 2010 and now my EVGA 750W Bronze.

I’ve also used some of them crappy Colors IT PSUs that used to come in cheap cases and I’ve never had one of them fail either. Maybe I’m just lucky but I’ve only ever had good luck with my PSU choices.
 
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