Hey guys! So i recently bought myself a second hand MacBook from eBay, it seems to be working fine for the moment. However... Every so often when i turn it on, it beeps 4 times, then continues its regular boot-up sequence. Is it possible my MacBook is somehow indicating something is wrong? Some further research indicated 4 beeps means the following: 4 beeps = no good boot images in the boot ROM (and/or bad sys config block) But the system continues its boot-up process and i am assuming the beep info above is if the system doesnt boot at all and simply beeps. Any help/info would be appreciated.