I need psu help

[Todor Kerev]

will 520w seasonic handle r9 280x + i5 3570k

 

[Entomber]

While it'll probably turn on, a 520W PSU is insufficient for a R9 280X's power draw. Get a 620W Seasonic instead.

 

[Todor Kerev]

While it'll probably turn on, a 520W PSU is insufficient for a R9 280X's power draw. Get a 620W Seasonic instead.

i can buy 750 w corsair for 50 euro second hand . is it worth it ?

 

[Whateverworks_19]

Well the TDP (for a full system) for the 280x is approximately, 80W when idle and 300W when under full load: (http://www.anandtech.com/show/7400/the-radeon-r9-280x-review-feat-asus-xfx/20)

In my eyes a good quality 520W is sufficient. However, I must agree with Mr. @Entomber, always go slightly above your needs, take no chances on the PSU. A good quality 550-620W of Seasonic or SuperFlower quality would be preferable.

 

[Entomber]

While it'll probably turn on, a 520W PSU is insufficient for a R9 280X's power draw. Get a 620W Seasonic instead.

i can buy 750 w corsair for 50 euro second hand . is it worth it ?

Secondhand? I would be wary of a secondhand PSU.

 

[Whateverworks_19]

While it'll probably turn on, a 520W PSU is insufficient for a R9 280X's power draw. Get a 620W Seasonic instead.

i can buy 750 w corsair for 50 euro second hand . is it worth it ?

750W would not be necessary. Besides, if its the CX-series I do not recommend doing it. Instead, buy a quality 550-620W Seasonic, XFX or Antec PSU.

 

[Spudmaster]

This is a good quality PSU: http://www.amazon.com/XFX-650W-FULL-WIRED-BRONZE/dp/B0045L5LGI/ref=sr_1_1?ie=UTF8&qid=1427305644&sr=8-1&keywords=xfx+650w

 

[4745454b]

You'll be fine with that PSU. I run a 280 and 3570k on a good 450W unit. Don't OC anything though.

 

[Dark Lord of Tech]

http://www.speedcomputers.biz/zahranvane-za-kompiutar-seasonic-ss-620gm2-bronze-620w-active-pfc/
Захранване за компютър Seasonic SS-620GM2 BRONZE 620W Active PFC

 

[Whateverworks_19]

http://www.speedcomputers.biz/zahranvane-za-kompiutar-seasonic-ss-620gm2-bronze-620w-active-pfc/
Захранване за компютър Seasonic SS-620GM2 BRONZE 620W Active PFC

I vouch for this option. Even though Mr. @4745454b is correct and your initial PSU is sufficient and indeed will run your components, the PSU Mr. @SR-71 linked, will give you the necessary leverage needed to overclock, since you have a K-series processor, plus it is good quality. I can't stress how important that is.