I currently have an hp pavilion p6754y and I've upgraded the PSU and added a video card and some more memory. I figured why keep upgrading this setup when i can just create my own. I've done a lot of research so far, and I have a decent understanding of building computers, but I just want some other opinions my setup so far. I'm building this on a budget and I will not buy it all at once.
I was going to get a similar motherboard at half the price of this one to save my budget but i chose this one because it has crossfire capabilities. I currently have a Radeon R7 250 in my HP, and wanted to put it in my new build to boost performance a bit (plus I wouldn't have to buy a more expensive video card).
PSU: I have not chosen one yet, because i don't know what the correct wattage would be. I would prefer a module PSU to minimize the amount of cables in the case. What would be the correct wattage for this build? Does the PSU need to be crossfire compatible?
Storage: I will most likely take out the Seagate 1tb hard drive from my current computer and put in into the new one.
My last questions, I do not know what overclocking is exactly, could someone explain it to me?
And overclocking is boosting your CPU(or gpu or memory) by modifying their clock rates and voltages. By overclocking you will gain performance, but overclocking has it's issues too. When overclocking the component will become hot and you need a good cooler for that. Also when OCing you are doing something that's not guaranteed to work by the manufacturers. I'm not scaring you but OC'ing must be done correctly.