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Can I bypass the 3 beeps on iMac Startup?

I have had the "3 beeps" on my 2008 iMac. I have confirmed the Memory is fine. At the Apple Store, removing & re-inserting the ram chips worked for a few days, now it is happening again. I removed them at home and re-inserted, but still getting 3 beeps.

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You can bypass the 'beep tests' on a Mac (or PC for that matter). They are critical to the system. You can only narrow it down to the memory simm or socket. You need to know what combinations of memory simms the machine will run on. If it beebs on the minimum memory, you need to prove the memory in another machine or try other working memory in yours. The sockets can go loose or get tarnished which will cause crashing and beebs on startup.

Posted on Aug 01, 2013


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Posted on Jan 02, 2017

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SOURCE: imac g4 cd drive

It;'s not a great Idea flipping the mac over they have a special stand to put them on when working on them. But it should be able to cope with it. Your mac is relatively old now. With all the moving around it could have just given up the ghost.

They are quite tricky to work on with the hard drive sitting on top and the cables running over and down the side there is a stack of heat generated there. Just make sure you put ll the thermal back in. If it's not a miss seated connection it could be a number of things. Cable, heads. Trouble shooting is quite tricky. As it is a desktop, in a lot of cases it is cheaper to buy an external DVD reader/writer. They are faster now!

You should be able to install OK when it is in terminal mode. You could run disk utility but more than likely you'll have to run the installation again.

Sorry, not much help.

Posted on Sep 12, 2008

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SOURCE: My iMac G4 turns on and goes to the grey startup

Hold down the command-option-p-r keys, and turn on the computer. Keep holding down these keys until you hear the "bong" four times. Do NOT LET UP ON THE KEYS until you hear the bong four times. Then let go.
If it still does not boot up, try booting up with the shift key held down. This causes the mac to boot into safe mode. You have to hold down the shift key until you see something like "safeboot" on the startup screen (not the grey screen, but the next one.)
There could also be a hard drive directory issue. While reinstalling the OS can help this, you should try DiskWarrior first. That program has saved my backside many times. It can repair the directory without wiping out all the contents of the hard drive.
There could also be a logic board problem. That gets a little tricky to fix on your own with this box. The home repair trick on that is to unplug the computer, disconnect the power supply cable from the logic board, and remove the battery. Let the computer sit like that overnight, re-assemble it, and start it back up.

Posted on Jul 22, 2009

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SOURCE: eMac freezes quickly and regularly after startup

A number of eMacs and iMacs were build with a shipment of faulty capacitors. Your symptoms are consistent with this problem
Apple had an extended free repair program to fix these failures within three years of purchase, but the program expired because it's been more than three years since the last one was sold.
Turn your eMac over, remove the bottom door, and look at the tops of the two can capacitors you can see through the door. If the lines on the bottom of the capacitors form a K instead of a +, they are likely to be from the bad batch. If there is any brown crud or ooze anywhere in those lines or elsewhere on the can, the capacitors are visibly failed.

Posted on Sep 19, 2009

Testimonial: "Hi thanks, this is exactly the problem I had, as was pointed out in a previous reply. Had it fixed a while ago and the eMac is up and running again:-)"

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SOURCE: imac 24 won't accept CDs or acknowledge that I am inserting one.

It sounds pretty clear from this problem description that your optical drive has gone bad and requires replacement. If you have posted under the correct model type, you have an "Early '09" model iMac and thus this repair should be covered under warranty.

Posted on Nov 18, 2009

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SOURCE: When I start my iMac G4 Dome with speaker jack

Due to age the connection may be corroded. Inserting and removing over and over may clean the parts enough to work longer for a while.

Posted on May 15, 2010

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2 Answers

How do I install memory on my 2010 iMac?

This is a basic 'DIY' answer.

Assuming your iMac is plugged into a properly grounded outlet ...

  • Large, soft towel or such.
  • a Phillips screwdriver (size 1 or 2).
  • Compressed/canned air (optional)

  1. Shut down the iMac completely.
  2. Unplug all the accessories connected to the iMac, except power cord, and set them aside and out the way.
  3. Place a soft towel or such on a large (based on the size of your iMac) flat surface capable of supporting the weight of your iMac and preferably close to you iMac.
  4. Carefully place your iMac, screen side down, onto the soft towel.
  5. Touch the outside METAL chassis of the iMac to discharge any of your body's static electricity.
  6. UNPLUG the power cord from your iMac and set it away from the computer.
  7. Move the stand upwards so you can see the panel with the three phillips head screws.
  8. Carefully loosen each one, NOTE: they do not come out, they will stay in-place.
  9. Gently remove the panel, IF it does not come off easily DO NOT force it, try loosening the screws even more until the panel is easily removed.
  10. Spray the compressed air in to the exposed RAM area to blow away any built up dust.
  11. There should be two plastic "pull tabs" that are tucked in behind the RAM - NOTE how they are placed s you will need to put them back the way you found them - pull out the tabs so that you can easily grab them.

This model iMac has 4 memory slots. You likely have two memory slots filled and two that are empty. So this describes how to add two more memory modules to the two that you already have.

Note that there is a notch in the edge of the memory module that needs to match up with the 'bump' of the available memory slot inside the computer.

  1. Gently, but firmly slide the memory into the slot, making sure that the notch/bump line up.
  2. When the memory stops sliding easily, use one hand to hold the iMac steady and use the other hand to firmly push the memory securely into the slot.
  3. The memory should 'click' into place and be even with the other memory, if already installed.
  4. If it won't go in any further, DO NOT FORCE IT! (Don't used ANYTHING to 'pound' them into the slots!)
  5. Slide it back out and make sure the notch in the memory lines up with the bump inside the computer and try again.
  6. Repeat this with the second memory module.
  7. Slide the plastic tabs back in place the way that you found them.
  8. Replace the panel and gently tighten the screws, do not over tighten the screws, they just hold the panel in place.
  9. Carefully return your iMac to it's full and upright position.
  10. Connect the mouse & keyboard if they are not wireless.
  11. Plug the power cord bak into the iMac.
  12. Turn on your iMac.
  13. It should make it's normal startup "chime".

IF it beeps three times, then there is something wrong ... UNPLUG the power cord!

  • Either the memory isn't installed all the way, which you would have noticed as the panel would not fit correctly.
  • The wrong type (speed) of memory was installed. Confirm with the place of purchase that the memory is at least (1333 MHz PC3-10600 DDR3 SDRAM).

Nov 24, 2015 | Computers & Internet

1 Answer

How to reduce iMac 2008 memory usage

  • Remove unwanted program from Task Manager while working.
  • Use compatible antivirus for your system.
For more how to boost up your memory read this manual - .
if need more help and guidance in managing your Mac system then follow Apple and Mac Technical Support .

Jul 01, 2014 | Apple iMac Computers & Internet

1 Answer

Makes beep sound but won't start

That beep sound is a code that lets you know that there is a problem and what the problem is. I suggest you count the beeps (it will probably be a series of 3 sets of beep to give you a 3 digit number) and either Google it or better still pop into your local Apple store.

Nov 14, 2013 | Apple iMac G4 Desktop

1 Answer

Imac g4 freeze restart

This is a sign of memory issues with your Mac. Replacing the memory should not be very expensive.

Oct 10, 2012 | Apple iMac G4 Desktop

1 Answer

IMac 27inch won't boot up

Power issues After ruling out display issues, and if your computer won't turn on, try each of these steps.
  1. Verify you have a good connection from your Mac to the wall outlet by confirming the power cord and adapter are securely connected and plugged in. To check if the wall outlet is working, plug in a lamp or other electrical device
  2. If the wall outlet is working and you continue to have no power, try another power cord or adapter if available. If it works you may need a replacement cord or adapter. If you're using a Mac notebook, see Apple Portables: Troubleshooting MagSafe adapters for further troubleshooting with MagSafe adapters.
  3. Disconnect all accessories that are plugged in to your computer. This includes things like printers, USB hubs, or mobile devices.
  4. Hold down the power button for ten seconds. Then, press the power button again to see if the computer turns on.
  5. Reset the SMC.
  6. If you recently installed memory or a drive in your Mac, make sure it's compatible, supported, and installed correctly. If possible, reinstall the original memory or drive to see if the issue persists afterwards.
  7. If you're still unable to start up your computer after trying each of these steps, visit an Apple Store or Apple Authorized Service Provider (AASP) for further diagnosis. If you plan to visit an Apple Retail Store, make a reservation at the Genius Bar using (available in some countries only).

Sep 22, 2012 | Computers & Internet

1 Answer

Imac g4 won't start but shuts down when apple logo appears on screen

Are you sure the iMac is really shutting down or just turning off the backlight? The tell-tale sing would be to let the unit fully boot-up (wait 3 minutes) and the press the button the apple keyboard that ejects the CD-ROM. If the CD-ROM door opens, you iMac is running with disabled or broken backlight.
The inverter circuit on the iMac G4 is known to be weak.
There could be another problem, though. The iMac G4 is also known to have weak internal power supplies. Here's how you can tell:
Hold down the CMD OPT "O" and "F" keys at the same time while pressing the power button. This will tell the iMac that you want to boot into the Open Firmware shell, bypassing the Mac OS X startup. If this works, your power supply is good, the inverter is good and you have a problem with your Open Firmware boot string. To fix the boot string, Power on the unit while holding down the keys CMD-OPT-P-R to zap the parameter RAM (PRAM) and reset everything to defaults.
If you were not able to boot into the Open Firmware shell, your problem is either a failed power supply or a failed screen backlight. The last possible culprit is your iMac could suffer from "Bulging Capacitor Syndrome", where a batch of iMac G4s, iMac G5s another electronics were fitted with a bad batch of capacitors. Eventually, the caps will rupture and cause irreparable damage to the logic board. Only way to verify this is to pull the unit apart and visually inspect. If you see little green or blue cylinders that seem to be bulging or oozing a thick oily goo, that's your problem. Only recourse is to shop around on eBay and look for a replacement logic board.

May 30, 2010 | Apple iMac G4 Desktop

1 Answer

My iMac g4 1ghz wont boot

First hold down the right hand shift key down when you start, this does some housekeeping, The next step is if you have an install disk or tiger disk then start up from it by holding the "C" key down when starting and inserting the dvd, if this loads then go through the install menu, dont worry you do not need to actualy install just select language and then you get to a screen where you can select utilities from the menu bar, then select disk utility and repair permissions, after that do a repair disk then quit disk utility and change the startup disk back to the hard drive and restart, if for some reason you cannot repair the disk, this refers to the catalogs it uses to keep track , not the data itaelf, in that case you need a 3rd party utility like Disk warrior.

Feb 24, 2010 | Apple iMac G4 Desktop

1 Answer

The startup window on my iMac 2006 Intel dual core stays on. The spinning circle just keeps going. I can't get past this point.

this seems to be a issue with the internal hard drive if it does not pass the logo screen, You might need to have this repaired, call you local apple store make a appointment to bring in your imac. sounds like a hard drive corash correct me if i am wroung I been working on macs for 5 years not to long huh? But I am knowledgeable is why you see the apple icon next to my name. Have the hard drive checked you be glad you did.

Dec 02, 2009 | Apple iMac 24" Desktop

1 Answer

Full Memory

There are 2 ways you can fix this.

1. Upon Startup, hold "apple" key, option key, "P" and "R"
Hold them until you hear it chime 3 times then release. This will reset the parameters, and do the apple version of a defrag, only takes about 5 mins though.

2. Start up and hold "shfit" key. Hold until apple logo and spinning wheel show up, then release. It will perform a mini "permission repair" Once Mac has booted up fully. Restart.

This should solve your problems.

Mar 17, 2008 | Apple iMac G5 Desktop

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