MegatronMusa

So I've decided to build my own desktop computer. I want it to be gaming based. The parts I've so far decided on are these.

Intel Core i7-4790K, EVGA GeForce GTX 970, NZXT H440 (White/Black) - System Build - PCPartPicker Canada

My questions are: is there anything I can improve or is this plenty good? Are all the components compatible with each other? What's the purpose of getting 2 graphics cards instead of one.

I would like to know because I'm to stream with this pc and I don't want to be given a hard time via hardware malfunction etc..right at the start.

My hp pavilion dv7 6b63us is rather old, hence why I got my Lenovo y410p. I was wondering if I could mod the bios for the hp just to see if I could apply the new wifi card I got for the Lenovo on it too.

Quick question. The vbios is only if you have 2 nvidia graphics cards? As in, without optical drive? Or am I still able to apply the vbios to the one card?

Hi, could I get a modded bios for a HP pavilion dv7 6b63us?

I will be attempting this on my Lenovo y410p laptop. Wish me the best of luck. If I have any questions or issues, I'll ask here ASAP so that my issue will be resolved quickly and hopefully my questions, if any, will help others.