Choose me a PSU

yahoo90

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i am planning to buy GT 650 ti graphics card to my PC.

so i need to upgrade my existing 250V PSU.
my PC config:-
i5 2320
4gb ram
500gb HDD
240w i ball PSU
MSI N210 1gb graphics card

so i have selected 2 PSU in my budget - corsair cx500 and Cooler Master Thunder 500W.
can you tell me which PSU is best?

P.S-i will not do overclocking,i am only a casual gamer.
 
Solution

qbsinfo

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please do NOT get the CM thunder, it is very cheaply made.




combined amperage doesn't work like that. look on the label for TOTAL power from the 12 volt rail:

408/12=34.

that is actually LESS than the CX500.
 

yahoo90

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Sorry for late reply. Yes, you are right.
 

yahoo90

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thanks for the replay.but my problem is seasonic g series is 70$!!! more in my area. than corsair or cooler master.
its out of my budget.. or can you tell me this model "Seasonic ECO 500" is good??

 
Dear, you can go with cooler master thunder 500W. It'll be sufficient for your requirements. I'm using cooler master extreme II 525 W. Your +12V rails have 24A and 21 A whereas my +12V rails have 20A and 20A. (Though this is not a way to compare the PSUs because their hardware and its implementation differs). Still Cooler Master Thudner will be good for you.

Regards,
 

yahoo90

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oky thanks. i will buy soon.

 


So you are of the view that because PSU is not 80+ rated so it won't deliver. This is a misconception rather.
 


The OP asked what unit was better between the two.
Imo the more energy efficient unit that delivers 500W continuous is the better choice.
The CM unit is labelled 500W max and its efficiency is below 80%.
No misconception there a simple fact.
 
Ok. Here is more theoretical info on efficiency:

Efficiency = DC Power / AC Power

There are two advantages with more efficiency:
1. It helps in savings on utility bill
2. Less heat is generated

There are two ways to achieve this maximum efficiency?
1. Efficiency is higher when PSU is operating at 110/220v.
2. When PSU delivers between 40% and 60% of its maximum capacity.

All modern PSUs ar closed loop systems, which means they are constantly reading eh values on the output and re-configuring the power supply on the fly to make sure that outputs are always delivering their correct voltages.

PSU will never be on its full load. Pl understand this concept. 500W is not required continuously. What is required continuously, is the voltages on the outputs (+3.3v, +5v, +12v, 12v, +5vsb) for which close-loop concept is describe above.

Generally, what is needed to be checked in terms of power requirement is that the stated/rated currents on +12v rail(s) should be greater than those on +3.3v and +5v. Because CPU and GPU (The most power hungry components) are connected thru ATX12v and EPS12v using +12v rail output.

Hopefully, this would serve the purpose.
 

yahoo90

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this is the thing i am very confused to choose a budget PSU.i cant spend more too.. :p
so what is the conclusion? which can i go for?
 


Dear,
When it comes to PSU, it is like an investment to safeguard the other components and stability of the system. I would like to make a request. Invest more and Invest better :)

Either of them are suitable for you. Suit yourself pl.

Can I ask what is your budget in Indian Re.
 

yahoo90

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i can spend 4500rs max.i am having lots of brand,model is avail..but i cant trust them all.so im asking question..

 


Go with Corsair VS550.
 

yahoo90

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vs series is better than cx? sure? i thought lot of people saying cx is better.
 


Go with CX series. Whatever series/model it is pl just remember to check that Amps on +12v are sufficient or should be more than those on +3.3 and +5v then check the efficiency.
Good luck dear
 
Solution

yahoo90

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Oky sir..
btw thank you so much for replying me with patience..
 


You are most welcome dear, Should you have more questions feel free to contact me. Btw which one you are going to buy now?
 

yahoo90

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i will go with cx500 it self.