Ok so I got everything installed and I'm currently installing windows 7 but the CPU fan that came with the i7 processor is noisy. Is that normal? When I first tuned on the system nothing happened. Then I found that one of the ram modules wasn't pushed all the in. So I turned off the PC fixed the ram module and turned it back on but this time the CPU fan didn't come on. So I tuned it back off and unplugged it and this fixed the fan. Why would it do that. Kind of worries me a bit.
if its the standard cpu fan, they can be quite noisy on stock due to the ivy bridges i7 cpus, producing a good amount of heat and it ofc runs at about 1000 odd rpm idle speed so it can be noisy.
on the other hand if its really noisy, (what kind of noise is it?) just a normal fan blowing noise or like grating or scraping etc? the fan unit itself could be faulty.
the best way to solve this id say get an aftermarket cpu cooler, cheap options maybe a cooler master 212 at around £20-£30. put that in a push/pull configuration with low noise (quiet edition) fans, these will reduce the noise produced greatly but still give you good cooling on your cpu. Maybe also get some after market cpu thermal paste too, something like diamond x, arctic silver, mx-5 etc. these will also reduce temps over the standard cpu thermal paste.
another option is to provide better air-flow inside the case itself, maybe add a fan on a mounted location to provide cool air inside the case. if there is no air flow the cpu fan will be pretty much sucking back in the heat again.
unless its a bad noise (grinding etc) i wouldnt worry and go for my options above if you want to reduce the noise the cpu fans emit. it wouldnt cost you more than £40-£50 to upgrade with 2 low noise fans, heat sink, thermal paste.
I wouldn't worry too much, i have a corsair h100i which the fans on max run at 2400rpm, it has 4 fans on the 240mm radiator in push/pull configuration. i can run this happily on 1000 odd rpm, if i put it onto max fan speed it sounds like a jet engine going off haha.