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System install was a success and was able to restart machine B successfully from the hard drive of the faulty machine. Did a clean system install from machine B (while still in target disk mode). Hard drive checks out with no errors and is formatted in Extended Journaled. Fired the machine up as a target disk and ran disk utility via remote control from another machine, we'll call that one 'machine B'. Bought new ram, put it in, reseated it a bunch of times, still three beeps every time.Attempting to restart using the system DVD by holding the C key, same problem. Computer starts with normal chimes, then when it gets to the grey screen with the Apple, I get the 'three beeps'. Now I can't get as far as the password screen any more. So I attempted to boot from my own Snow Leopard DVD, then I started getting three beep errors. I thought this was going to be an easy case of erase-and-install. My friend did not have the password to get into the machine and no original system disc. They were given the computer by someone who didn't want it. I'm working on a Macbook pro 15 A1278 for a friend.
MACBOOK PRO 3 BEEPS APPLE LOGO MAC OS X
MacBook Pro i7 8GB - iPhone 4, Mac OS X (10.6.7) MacBook Pro :: 3 Beeps On Start Up? Mar 22, 2012
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I then booted up this morning with a full battery and the boot up took a lot longer than normal - maybe around 3 minutes on the spinning logo, and then finally booted - are these all worrying signs?
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This i7 is coming up to its first year (which I think is covered by Apple?) and I *think* this maybe a memory issue? If it is, and my Mac is covered, then by a sheer stroke of luck, I decided to get Apple to fit the 8GB memory at the time of purchase (bad I know! and I don't usually do that) BUT that would mean that Apple fitted the memory upgrade and I haven't touched anything myself. However this time, I had the frozen screen saver, and a continuous 3 beeps which I've never had before in a loop? I then re-pressed the power switch on the Macbook and it rebooted fine and seems ok. I get a frozen screen saver which is normal, while the progress bar finds it feet back on power. Seagate does not endorse or accept any responsibility for the content, or use, of any such web sites.My Macbook Pro battery had run down (it does quite a bit) so I rebooted with the power inserted. Seagate makes no representations whatsoever about the content of any of these web sites. These links are provided for your convenience only and your use of them is at your own risk. There are links in this document that will permit you to connect to third-party web sites over which Seagate has no control. To obtain product specifications and warranty information, please contact the respective vendor directly. You should make your own independent evaluation before conducting business with any company. Each company listed is independent from Seagate and is not under the control of Seagate therefore, Seagate accepts no responsibility for and disclaims any liability from the actions or products of the listed companies. Seagate makes no warranty - implied or otherwise - regarding the performance or reliability of these companies or products. Seagate references third parties and third party products as an informational service only, it is not an endorsement or recommendation - implied or otherwise - of any of the listed companies. REFERENCE TO THIRD PARTIES AND THIRD PARTY WEB SITES. If you experience one of these beeps, you should call your Apple-authorized service provider for additional troubleshooting assistance.Ģ beeps = Incompatible RAM type installed (for example, EDO)ģ beeps = No RAM banks passed memory testingĤ beeps = Bad checksum for the remainder of the boot ROMĥ beeps = Bad checksum for the ROM boot block" Instead, the system will beep as explained below.
If a fault is detected during the test, you will not hear a normal startup chime. Explains a few beep codes for legacy Mac computers.
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