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If your Mac has become frustratingly slow, there are a number of ways you . to add new advice and tips for speeding up your Mac computer.

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This error will have to be addressed as soon as possible because a Mac cannot turn on without memory. If you hear 3 successive tones followed by a 5 second pause repeatedly, this is another sign there is a problem with your Mac.

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  • memory - My RAM was bad ("three beeps" bad) until shuffled - Ask Different.

This can happen when the RAM module is not seated properly or a problem with the connection between the RAM and the logic board is present. Ensure that the RAM module is pressed into the slot all the way and that the retaining clips are holding the module tightly in place.

How to Change RAM on a Apple iMac and the three beeps hardware problem

The Mac will display a loading screen and take care of itself; you just need to have patience. I am now having the same problem and cannot figure it out for the life of me. Check the memory you're trying matches the speed of the original.

If it's got more than one memory slot, try both, and if possible, blow into the memory slot to clear out any dust that may cause it to make bad contact deep inside. It's been running fine for 5 hours since it was cleaned with an air-can. Steve rahzahk. I tried unplugged the power from the power live it a few minutes and try turning it on but when I press the power button my imac still gives the beeping sound after every second Select a Language: Help Translate iFixit.

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What does it mean when the LED blinks and the computer beeps 3 times but won't boot? View the answer I have this problem too Subscribed to new answers.

RAM: Troubleshooting Tips

Is this a good question? Yes No. A single beep indicates no RAM is installed, which indicates the RAM modules are not getting enough power or have become corrupted to the extent that the system does not register them as being present. If you hear two beeps, then this indicates you have RAM installed but it is determined to be incompatible with your system.

This issue is likely the case after you have upgraded your RAM with modules that are too slow for your system's RAM bus.

The different Mac startup tones and the problems they indicate

If you hear three beeps, then the system is telling you the RAM is recognized but for some reason it cannot access the memory banks, which is likely the result of corruption from static discharges or factory faults in the memory chips. In these situations, your best bet is to replace the RAM. If you experience more beeps than a series of three when powering on your system, then this indicates a problem with your computer's ROM or processor, and it will need to be taken in for servicing. In addition to beeps, the system may flash its power LED in various patterns to indicate similar issues.

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No activity after boot chimes A final issue if you hear nothing after the power is turned on is faults in the system's ability to load parameter RAM variables, which are hardware settings the system uses before it loads the system software. While PRAM errors usually result in odd setting being persistent after bootup, on rare occasion a fault in the PRAM may result in a hang when the system tries to access it, and clearing the PRAM is the only way to get around this issue.

To do this, restart your system with the Option-Command-P-R keys all held down at once, and release them after you hear the system reset and sound the boot chimes again. Have a fix?