We've got an old gateway computer (at least 5 years) that we haven't used in awhile due to getting a couple new ones. My sister wants one in her room so I put in a new hard drive (the old one was slow and faulty) and figured it would run as normal. When I try to start it up I get BIOS beeps of one long tone then two short ones in succession. I don't have the manual and don't know where I can look up what this means. Nothing shows up on the screen and the computer just runs after the beeps. Thanks!