Question about Apple iMac Computers & Internet
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.
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
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
RESET THE PRAM!
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
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:-)"
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
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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