Examples: LaserJet Pro P1102 paper jam, EliteBook 840 G3 bios update Need help.

Is the top socket likely to suddenly become faulty? I have some WD-40 Fast Drying Contact cleaner but I didn't to start spraying that around without checking.Īm I best to just order a compatible 4gb single ram and run it in the bottom slot or take it to a local computer repair shop? It's second hand and 2 yrs old. Use the backup file stored on the hard drive: Turn on the computer. I am assuming from this the top socket has suddenly become faulty. I then tried to start up with RAM in only the top socket, it then beeped 3 times. Release the keys once you hear the second startup sound from your MacBook. You can ask someone to help you to ensure the operation is correct.

Hold down the power button and the Option - Command - P - R shortcut keys simultaneously for about 20 seconds. If your iMac/MacBook Pro/MacBook Air wont. Press the power button for 10 seconds to force shut down your MacBook. I took out the top 2GB ram and it turned on, I then swapped the 2nd RAM with the 1st in the bottom socket and it started up again. Follow the steps below: Tilt your MacBook Pro to a 75-degree angle. I removed and reset the Ram but still 3 beeps. Either your computers memory was removed or something is interfering with the system checkup. If you hear this pattern of beeping, it means that the Mac could not find any RAM installed. Yesterday when I went to turn it on it started beeping 3 times, so after scanning this board I realised it was an issue with the RAM. 1 tone repeating every 5 seconds: When you start your Mac, it will automatically run system diagnostics.

Macbook pro 3 beeps wont start