I don't have very good knowledge of gaming requirements and stuff but I did my own research and this is what I am looking to buy. I would like to know if there is any problem with my pc and if it will run games like skyrim and bf3 on high-ultra settings. Thank you
That's very bad. Get a psu from a known good brand like Antec, Corsair, Seasonic, or XFX. An HD 7870 should be sufficient to run Skyrim on Ultra and BF3 on High at 1920x1200, but Skyrim has better performance with Intel cpus (I don't remember whether BF3 also favors Intel cpus)
the intel cpu builds are a bit too expensive for me and what would happen if i didn't change the psu? the brand ones are about $50 more
You dont need 800w. Go for a nice branded 600w, it's plenty. The whole PC would pull about 400w.
The issue with cheap PSUs is they are unreliable. They might have 12v rails that are over or under volt, they might fail hard and zap the GPU, they might not be able to even deliver the needed 400w for that computer.
A sufficiently bad psu can ruin all your other components, and the warranties probably won't cover that, so instead of saving $50, you're really gambling several hundred dollars that a no-name psu will have enough power and stay working until such time as you upgrade again or get rid of your computer for other reasons.
it says the required watts is 495 and I don't want to cut it close with a 500w psu... the 750 watt Corsair psu is $70 more which I don't really want to spend.
I guess I will change it then now that you put it like that lol thnx for the advice Also how will it handle games? If I can get more details about that, it would be helpful.
An Intel i3-3220 would be faster in games than the FX 6300. Newegg has them both for about the same price and a 1155 motherboard would likely be cheaper than the AMD 970 AM3+. A B75 is only about $60
Thats 377 total system watts, whole computer. With an overclocked 7870 Myst Ed and an i5 2500k overclocked to 4.8GHz,
Where are you getting 495 watts? According to the eXtreme Power Supply Calculator Pro, that fx-6300 system with two 7870s (presuming you're getting one now and one later for crossfire) needs a minimum of 344 Watts (394 or more recommended) with 28.7 amps on the +12V rail. The Intel i3-3220 requires less than that.
it says on the cyberpowerpc.com site...when you customize you gaming pc it changes the watts needed depending on your choices. Should I just go with the 500w crosair then?
A Corsair CX500 or CX500M provides 38 amps on the +12V rail, so you should be fine.
Thank you so much guys. I will change my psu
I recommend Seasonic, a 520w modular version. They are going cheap on Newegg.com.