So my m17x started doing 8 beeps on start up. I delved into the back after doing some research and finding out it may be either, the gfx card or the lcd. I reseated everything I could without going too far and I seemed to fix it until I brought up a game. Shut off completely and started beeping again. I then narrowed it down to the graphics card. I then proceeded to remove the heatsink to get to the graphics card without realising I didn't need to, to reseat it. I pulled the heat sink off the gfx card and felt the old thermal paste come off. My question is, since I've put it back together... Do I have to clean it and apply new thermal paste before I turn it on?? I'm stressing because this Comp was expensive and I don't want to destroy it. Thanks in advance.