Does anyone have any ideas that I can try? Again, nothing has been done to the computer in at least 6 months when I upgraded the RAM. I cant believe it, my trusty old MacBook Pro 17' 2.6GHz upgraded to 6GB RAM has now started beeping the dreaded three beeps, which doing some googling looks like a bad RAM slot I took out the RAM and test individual sticks into the slots. I'm about out of ideas apart from scraping the computer. Here is what I've tried thus far to no avail:ġ) Swapped out the monitors early on since I figured that was my weak link - no changeģ) Tried to boot up from the System Disk - The mini loaded the dvd into the drive, but nothing else (I can't eject the disk so I can put it back)ģ) Start up the computer in target mode connected to another mac - I tried this too, but I never received a chime or the disk show up on the other mac.

I don't get anything to the monitor, nor do I get any dings or other start up sounds from the computer. When I turn it on the fan turns, the white power light in the front turns on, and there is a sound that appears to be from the optical drive (rather than hard drive). The computer had been working fine until one day my kids told me that it no longer works. This is the computer my kids use so I don't use it regularly. I have an Intel-based Mac mini mid-2007 (Model A1176).

Macbook pro 3 beeps no boot