Alright, so I got an Aspire M5811 since 2010. One day, it suddenly wouldn't start up. Beeping noises are heard from the CPU, 1 long 2 short. After a bit of research, it seems that the computer could not detect the graphic card, which results in it not starting up. So, I reinserted the graphic card. Failed. Did it again. Failed. Repeated for 1 hour. Still hearing 1 long 2 short beeps. Then after a few (maybe 3) hours, I tried again, reinserting the graphics driver, connecting the monitor cable and turned it on. It worked. I didn't know what happened but it worked. After I was done using the computer, I turned it off. The next day (today), the problem came back. Reinserted, plugged monitor cable, turned on and it works. Now I don't know whether its the graphic card or the slot. Wonder if replacing it will work. I'm afraid that if I turn off the PC, the problem will return. Any help would be appreciated.
(I never opened the CPU since 22/7/2012 for cleaning.)
(I never opened the CPU since 22/7/2012 for cleaning.)