Im planning on making a gaming computer. I only have a i7 core

>>298280
For graphics cards, look up performance/price ratio charts and buy something in your price range. Make sure it's compatible with your processor.
For motherboards, make sure it works with your processor. Outside of that it should be chill.
For RAM, get 8GB (or 16GB if you wanna have more shit open at once). Motherboards come with two slots for ram by default, so get 2x4GB or 2x8GB based on your choice.
For a PSU, calculate the combined wattage requirements of all these parts (there's tools online or something), then buy a PSU that provides at least that much power, if not more for security.

>>298282
and read product reviews, then you're good.

>a i7 core processor
which model? because its important to chose the proper socket. also, just because it says i7 in the name does not mean its a good one

The i7 core is a i7-7700k. I heard from other people that the core is pretty good. So i decided to buy it

Also does the caseing (the box) matter?

>>298288
>i7-7700k
you will need a socket lga 1151 motherboard
>https://www.newegg.com/Product/ProductList.aspx?N=100007627%20600567584&IsNodeId=1&Submit=ENE
its just a matter of which price point and features you want

>>298290
that depends, if you are not planing on overclocking, then any case will do. if you want to mildly overclock then just an aftermarket cpu cooler should be enough. if you plan on either overclock quite a bit and/or the whole system you need to take into consideration air flows, and thus a good case will matter

>>298322
>No, if he's going for 8GB he should just get a 8GB RAM straight away instead of two 4GB, that way he can upgrade to 16GB in the future and not waste the two 4GB ones.

>i7
>single-channel RAM

That's absolutely retarded and you should leave this thread for even suggesting it.

Giving a dual-channel chipset only one DIMM will half the memory bandwidth and severely reduce perfomance. If you're sincerely telling someone to install unmatched DIMMs, you are an imbecile and you need to stop posting shit advice here.

>>298325
I apologize and proceed to get out.

>>298288
>>298280
See, you could do all that donkeywork yourself, or you could just go to PCPartPicker, tell it the part you do have, view the PCs other people have built, sort by "highest rated" and filter by what your budget is.

https://pcpartpicker.com/builds/by_part/VKx9TW#sort=a1