i have recently got an acerpower fe and i booted it up perfectly fine so i decided to upgrade a few things i put in another stick of ram and also out in another internal harddrive through the IDE cable hooked up to the cd/dvd drive that has two ports on it the harddrive i put in is an older one that only has IDE hook up but after turning the desktop back on nothing happened the cd/dvd drive light steadily blinks and nothing shows up on the screen after removing the hardrive and stick of ram i turned it back on and same thing cd/dvd drive light blinks and nothing still on screen please tell me whats going on??!!!