Good PSU around $50?

[Airplane]

Need a cheap PSU. thanks

CPU: Intel i5 3570k will overclock to 4.5ghz

GPU: Radeon 7850

Motherboard: ASRock Pro3

CPU cooler: Hyper 212 plus

Crossfire: no

Ram: 2 x 4gb Corsair Vengeance

 

[socialfox]

This power supply should do nicely, and it is a pretty good power supply in terms of quality.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817371045

 

[Airplane]

This power supply should do nicely, and it is a pretty good power supply in terms of quality.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817371045

You think 450w is enough? I really don't have much experience with building computers so I don't know how much power will be enough

 

[Bejusek]

PSU is a vital component of your system. Do not stint on it.

PC Power and Cooling Silencer MK III 500W (@4.6GHz OC it will be maxed out)
http://www.newegg.com/Product/Product.aspx?Item=N82E16817703035

Corsair CX600
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139028

XFX P1-550S-XXB9
http://us.ncix.com/products/?sku=59615&vpn=P1550SXXB9&manufacture=XFX&promoid=1257

 

[socialfox]

Well take a look at this:

3570k (stock) - 77 watts
HD 7850 - 130 watts (for combined 12v rail, 24 amps needed)
2x4gb- 10 watts per module (just an rough guess, could be less)
Fans - Barely use any watts, I would say 5 watts for the average fan.
DVD Drive - 30 watts at most (yours could use less)
Hard drive 15 watts

Just a rough estimation including a bunch of fans and other factors and you come near 250 watts. That leaves 200 watts for overclocking and a bunch of fans. The VP-450 has 2 12v rails of 18 amps per rail. That means 36 amps on both rails is more than enough for the HD 7850 that asks for 24 amps on a single rail.

Edit: Here is a power supply tier list
http://www.eggxpert.com/forums/thread/323050.aspx

The Antec VP-450 is a very good unit, it's in tier 2b which is pretty good.

 

[Bejusek]

System with 3570k @ 4.6GHz at full load takes about 230W Add GPU load to that.

 

[socialfox]

Even with 230 watts doesn't it come to around 425 watts? Anyways are you sure it uses 230 watts? I myself don't own it but it kind of seem awfully high.

If you are using a 3570k then use this:
http://www.extreme.outervision.com/psucalculatorlite.jsp

And input your overclock and voltage and see how many watts it comes out to.

 

[toyftw]

Need a cheap PSU. thanks

CPU: Intel i5 3570k will overclock to 4.5ghz

GPU: Radeon 7850

Motherboard: ASRock Pro3

CPU cooler: Hyper 212 plus

Crossfire: no

Ram: 2 x 4gb Corsair Vengeance

Hi - if you can stretch $5 I think this is a great deal:

http://www.newegg.com/Product/Product.aspx?Item=N82E16817151119 Seasonic G series nets to $55 after mir

Tom

and 550w gives you plenty of headroom

 

[Airplane]

Best answer selected by Airplane.

 

[Airplane]

Well take a look at this:

3570k (stock) - 77 watts
HD 7850 - 130 watts (for combined 12v rail, 24 amps needed)
2x4gb- 10 watts per module (just an rough guess, could be less)
Fans - Barely use any watts, I would say 5 watts for the average fan.
DVD Drive - 30 watts at most (yours could use less)
Hard drive 15 watts

Just a rough estimation including a bunch of fans and other factors and you come near 250 watts. That leaves 200 watts for overclocking and a bunch of fans. The VP-450 has 2 12v rails of 18 amps per rail. That means 36 amps on both rails is more than enough for the HD 7850 that asks for 24 amps on a single rail.

Edit: Here is a power supply tier list
http://www.eggxpert.com/forums/thread/323050.aspx

The Antec VP-450 is a very good unit, it's in tier 2b which is pretty good.

 

[socialfox]

Slight correction TDP is not the same as wattage. The TDP of the 3570k is 77, but it should use less in terms of wattage ( so less than 77 watts at stock speeds).