Mac Startup Error Codes
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they mean. Mac computers can produce several sounds when starting up. Your Mac should produce the familiar single tone on start up.If you hear prohibitory symbol mac one of these tones, it might mean there's a problem with your mac grey screen of death computer: 1 tone, repeating every 5 seconds: This indicates no RAM is installed. 3 successive tones, a 5 mac logo makeup second pause (repeating): This indicates RAMdoes not pass a data integrity check. 1 long tone while holding down the power button: Indicates an EFI ROMupdate is in progress on a computer prohibitory symbol mac fix manufactured before 2012. 3 long tones, 3 short tones, 3 long tones: Indicates EFI ROMcorruption is detected and the computer is in EFI ROM recovery mode. If you need to restore the EFI ROM on certain Mac computers produced before 2008, you'll need to use aFirmware Restoration CDto restore the EFI ROM.SearchApple Downloadsfor the right CD image for your computer. Newer
Mac Stuck On Grey Screen
computers automatically recover from a corrupted ROM; when this occurs, a progress bar appears onthe screen during ROM recovery mode. Do not disturb the machine while the ROM recovery is taking place. It will restart back into OSX when recovery is complete. Learn morePressing and holding keys when the startup tone sounds can make your Mac function in different ways. To learn more, see Startup key combinations for Mac. Last Modified: Mar 16, 2016 Helpful? Yes No Thanks - please tell us how to help you better. Submit Cancel One Moment Please Thanks for your feedback. 54% of people found this helpful. Additional Product Support Information Start a Discussion in Apple Support Communities Ask other users about this article Wait... See all questions on this article See all questions I have asked Still need help? Apple Footer Apple Support About Mac computer startup tones More ways to shop: Visit an Apple Store, call 1-800-MY-APPLE, or find a reseller. Copyright © Apple Inc. All rights reserved. Privacy Policy Terms of Use Sales and Refunds Site Map Contact Apple United States (English)
X Startup Sequence & Error Codes and Symbols AudienceFaculty/StaffResearcherStudentGTF Overview The following is an overview of the startup sequence, error conditions,
Macbook Error Codes
and behaviors for all Intel-based Macintosh systems. For any other issues mac prohibitory sign el capitan besides these errors and symbols, and you're still having problems starting up your Mac, please refer macbook pro stuck on loading screen to http://support.apple.com/kb/TS1411?viewlocale=en_US Error/Symbols on Start-up Startup Sequence stage Event Power On Boot-ROM/RAM check is initialized BootROM-POST Black screen, power LED on: POST or BootROM failure Flashing power LED https://support.apple.com/en-us/HT202768 once per second: bad RAM or no RAM Three flashes, a pause, and three more flashes (occurs continuously): marginal RAM BootROM-EFI Boot chime Boot EFI Metallic Apple: found boot.efi Circle with slash: could not load boot.efi, or some other issue Flashing globe: looking on the network for booter/kernel on netboot server Metallic Apple with spinning https://it.uoregon.edu/node/3308 earth below: found booter/kernel on netboot server Broken Folder that blinks: no bootable device or operating system was found kernel Grey screen with Metallic Apple and spinning gear launchd Blue screen loginwindow Login window appears User Environment Setup The text "Logging in..." appears in login window along with a progress bar. Upon successful login, the Desktop and Dock appear. Skip Footer Region Dig Deeper Business & Finance Available Software Network Email Web Publishing Options Blogs and Content Management Systems Site Licensed Software Knowledgebase and Tip Sheets Accounts Safe Computing Web Resources Researcher Services Educational Technology Software Helpdesk Contribute Content! Are you a campus IT professional or someone who works closely with technology? Please take a moment to request access to this site so that you may contribute news, events, and many other types of information to it.uoregon.edu! Read some helpful tips for contributing content to this site. Login Contact Us For technical support, please contact theTechnology Service Desk at techdesk@uoregon.edu.
remain constant. If you know of a category of errors that are not included here, please let me know. error -32768 http://www.cs.cmu.edu/afs/cs/user/lenzo/html/mac_errors.html svTempDisable: Temporarily disable card but run primary init. error -32640 svDisabled: Reserve range https://www.cnet.com/news/troubleshooting-the-boot-process-for-intel-macs/ -32640 to -32768 for Apple temp disables. error -32615 fontNotOutlineErr: bitmap font passed to routine that does outlines only error -23048 outOfMemory: Not enough memory is available to issue the needed DNR query or to build the DNR cache. error -23047 dnrErr: The domain name server has returned an error. error -23046 error codes noAnsErr: None of the known name servers are responding. error -23045 authNameErr: The domain name does not exist. error -23044 noNameServer: No name server can be found for the specified name string. error -23043 noResultProc: No result procedure is passed to the address translation call when the resolver must be used to find the address. error -23042 cacheFault: The name specified cannot be found in prohibitory symbol mac the cache. The domain name resolver will now query the domain name server and return the answer in the callback procedure. error -23041 nameSyntaxErr: The <
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