So I have been wanting to install windows 7 on my macbook pro for some time now but the laptop doesnt have a top case so I cant really use it. a few days ago I thought I would just do it without the top case and use it as a desktop. So I set the motherboard on my desk plugged in all the nessecary cords and cables and turned it on. The first thing I noticed is that it was running EXTREMELY slow. So slow that it took 6 hours to install mac os from internet recovery, and the mouse cursor wouldnt even move an inch without stuttering. It looked like I was wathing footage from a low quality screen recorder. So then I took a dell windows 7 upgrade option disk I had laying around and used my desktop to turn the disk into an ISO file, since the macbook pro doesnt have a dvd drive because I lost it.. and I then used rufus to put it onto my 16 GB san disk USB flash drive. So I then put it in the macbook pro, and since its a 2010 I went to edit the bootcamp files. After I was done editing them I went to sign the code and it just kept saying that the code “had no signature and all” and that I couldnt sign it. So I gave up on that and thought I would just boot directly into the installer and install the drivers after it was done. So I held down option as I was booting and after a long time of loading it just showed no drives at all. Not even the main hard drive with mac os on that I can boot into just fine. So I restarted and intalled rEFIt to see if that could fix the issue. And rEFIt shows no drives either. Im wondering if this has something to do with it not having a top case, as it worked fine when it had one. I also considered the hard drive cable could be failing. The specs of the laptop is a mid 2010 macbook pro 15 inch with a 2.53 GHz intel core i5, a 1TB 5400RPM hard drive from a PS4 and 4GB of 1067MHz DDR3 ram from a late 2008 macbook alluminum. Keep in mind that everything worked just fine the last time I used it. also the ram has some tape on it because a ram clip is broken so it is held down with some tape. Dont know if this has anything to do with it. It also has had the cap that causes kernel panics replaced with a better one. So I really have no Idea what this could be other than the top case being REQUIRED for the machine to work properly. Any advice would be appreciated. Thanks (Im thinking the little gold pins on the board might need to be pressed down by the top case for it to work right)