Ps3 – Can i use another Playstation disc drive in the PS3

Check out the guides on iFixIt.com

The first screw is a T10 Security Torx screw, but a normal T10 Torx screwdriver should remove it. Honestly if you can get the screw out it's not super vital to get it back in so using a flathead and stripping it a bit whilst you remove it isn't too big of an issue.

If you have a heat gun and thermal paste try reflowing the cpu/gpu. You can probably get it working long enough to get your disc out, and maybe even back up your saves.

If not, just follow the tear down guide until you can get the disc drive out. The disc drive isn't too hard to disassemble, and you probably aren't too worried about getting it back together.

Unfortunately there are high chances that this is a sign of an YLOD coming. If it beeps when you quit certain games and not too often it might be the software but considering it beeps when you turn it on, I think it's a sign of YLOD.

For your second question, well you can't just swap it. You have to transfer your content on the new console since when you put in a new hard drive you are prompted to format it.