regarding psu ?

[lilly_lilly]

suppose im using 50% efficient PSU that’s tasked with providing 50W of power to a system and is drawing 100W from the grid and the extra 50W is lost as heat..
so, does those extra 50w heat will be considered in my electric bill everytime?

 

[lilly_lilly]

and if my components 550w but im using 800w..will it cause voltage drops or ripple and damage my components..?

 

[RARRAF]

if your using 100w you will get charged for a 100w if the PSU is a 50% then its a bad PSU

 

[Gam3r01]

In the simplified form yes, the unit (well go with your numbers) will provide 50w with 50% efficiency, this means the unit has to draw 100w from the wall (through 50%) to provide 50w.

 

[RARRAF]

if your using 800 of a 550 everything gets les power than it should it cant do more than 550 have a look at the PSU tier list here and you want a tier 1-2

 

[lilly_lilly]

ty guys for quick response...but will using 800w psu for 500w power consumption, cause voltage drop to damage the components?

 

[lilly_lilly]

and plz suggest a good psu for 550w usage that can last 6-7 years under 10000 inr

 

[Gam3r01]

There is nothing wrong with over-provisioning with the PSU, 800w for a 500w draw is actually a good thing (highest efficiency).

If you can raise your budget slightly:
PCPartPicker part list / Price breakdown by merchant

Power Supply: EVGA 750W 80+ Bronze Certified Semi-Modular ATX Power Supply (₹11583.00 @ Amazon India)
Total: ₹11583.00
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-09-25 00:14 IST+0530

 

[lilly_lilly]

one last thing...
check this link and read best solution :- http://www.tomshardware.com/answers/id-2269267/psu-draw-full-wattage.html

what u guys say ?

 

[lilly_lilly]

and this also :- https://www.youtube.com/watch?v=dOXTZizokncv

 

[lilly_lilly]

plz guys.. sort the genuine answers..i really wanna know..

 

[RARRAF]

EVGA I think the G2 or seasonic is good my recomendation go for higher than you need then you are good to go a 600w should be good and there is no problem having too much power
http://www.tomshardware.com/reviews/best-psus,4229.html?_ga=1.174154720.334134689.1447409183

 

[Gam3r01]

That power supply listed is the best option near your budget, the rest really does not matter.

 

[lilly_lilly]

as clarified by Gam3r01 ...it will cost me for those extra lost Watt heat in electric bill...

but here :- http://www.tomshardware.com/answers/id-2269267/psu-draw-full-wattage.html

they are saying opposite of it...i don't know who is right
what am i suppose to do?

 

[Gam3r01]

I used your numbers for my explanation.
The unit draws what it needs to from the wall (then it undergoes its efficiency scaling) to the actual output wattage. You really shouldnt be worrying about that so much, no matter what unit you buy they are all going to pull similar watts from the wall.

 

[ko888]

as clarified by Gam3r01 ...it will cost me for those extra lost Watt heat in electric bill...

but here :- http://www.tomshardware.com/answers/id-2269267/psu-draw-full-wattage.html

they are saying opposite of it...i don't know who is right
what am i suppose to do?

Of course the electrical utility company will charge you for the electrical conversion losses. Anyone that says differently doesn't have a clue what they're talking about.

 

[lilly_lilly]

as clarified by Gam3r01 ...it will cost me for those extra lost Watt heat in electric bill...

but here :- http://www.tomshardware.com/answers/id-2269267/psu-draw-full-wattage.html

they are saying opposite of it...i don't know who is right
what am i suppose to do?

Of course the electrical utility company will charge you for the electrical conversion losses. Anyone that says differently doesn't have a clue what they're talking about.

omg...!!! so i have to pay for full 800w for 800w psu...even if i am using 500 w

 

[Gam3r01]

Youre understanding that wrong.
Your system, lets say, uses 500w. If your unit is 80% efficient, you will be drawing 20% more than you are using. Not 800w for 500w.

 

[ko888]

Youre understanding that wrong.
Your system, lets say, uses 500w. If your unit is 80% efficient, you will be drawing 20% more than you are using. Not 800w for 500w.

If the system is drawing 500 Watts DC, and the PSU has an 80% conversion efficiency at that power draw level, then you will be paying for 625 Watts of AC power draw.

 

[lilly_lilly]

ty all of you..u guys light up my mind...and sorry for so much questions