I just bought an Asus laptop on eBay that was having problems booting with the idea of fixing it. However, I'm having a harder time at it than I hoped.
The problem is that when you turn on the pc (an Asus X550LA laptop), nothing appears on the screen, and the optical drives makes a noise about once every second that it does when you push it back in, as if it's checking for a disc. When I first turned on the computer, if you opened the ODD and let it sit, it would boot to Windows after about 20 minutes. Once I was in, no problems. Thinking that maybe Windows was corrupt, I put the HDD in another computer, completely cleared it, and installed a fresh copy of Windows 7. I put it back in the laptop hoping for the best, but the same problem. Except now, Windows never boots up; the computer goes to BIOS after a long period of sitting with a black screen (the optical drive still making that noise if I don't open it). I went into the BIOS and looked at the boot order, and.... nothing was there. No HDD, no optical drive, nothing. I tried to boot with a USB beforehand too and it wouldnt; it just took me to the BIOS after a while like it is now. I've removed and replaced the CMOS battery, removed the ODD totally, tried the HDD with Windows 10 and 7 and completely empty, everything. I can't get it to do anything but act like it's trying to read a disc. The problem with that is that I put in a disc and it made no attempt to read it, it just acted like it was before with no disc in it. I don't think it's a hardware issue, since when it booted into Windows eventually it acted just fine. The problem is with booting up. Is it possible that the BIOS is corrupt? I don't know the history of the computer, so I don't know if it was flashed or anything. I can't flash the BIOS myself since I can't boot from anything. I have no idea what to do, and I've never run into a problem like this before. I'm afraid the motherboard is bad, which I'm just not going to spend the money on to replace. Any ideas?
System is an Asus X550LA, core i5 4200u, 8GB of ram, bios version 210.