Ok so my computer will turn on with all the lights and fans functioning correctly, and both disk drives open. However, when the computer is turned on, nothing even comes up on the monitor. It's a blank screen reading no signal, also the keyboard won't respond or light up like it usually does. Also, if I let the computer sit for 30 mins or so, it will turn on and go to the blue screen that shows all the f10 and those keys you can press to go to. When I click on 1 of those F keys, it just hangs there for a while and goes to the boot menu, and says "no disk reserved for raid use, raid disabled" then it goes straight to another error "insert Reboot and select proper boot device or insert boot media in selected boot device". This is only possible once every time i turn the computer on, after that, the following restart does the problem above, reads no signal on the monitor and the keyboard wont respond.