Impeccable timing. Adam Rosen – Submitted on 2010/09/02 at 1:08 am When I try to log in it goes to the page with Finder in the menu bar and then 2 or 3 seconds later goes straight back to the login page whether or not I click with the mouse or try using the keyboard. The flashing question mark or a circle/slash means your Mac can’t find a valid startup disk. If you have to resort to these types of tricks to get your disk working, copy any important data off a disk immediately when it’s accessible to be safe. This time was no exception. I suggest you take the laptop to an Apple Service Center. Shortly thereafter it transfers command to the almighty (and controversial) launchd process. Would upgrading to the latest OS help? Laptops have an additional power supply in the battery. They won’t dive in deep to fix an issue and would rather sell you a new computer (that was their suggested fix vs. logic board replacement). I have a 14 mo old MBP 13″ (June 2009). My daughter is the administrator so we can log in as her and use the computer but I am unable to access the documents I have under my log in. Kind Regards I still get a grey screen – no logo. How can I resolve? On a Beige/Platinum G3, it will cause booting problems. Even though the memory is recognized at ½ of its overall density, I wouldn't advise installing unsupported components on the motherboard, if you want trouble-free operation. I unplugged everything from the logic board except for the power supply and video connections and hit the power button. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. Clues to the causes of Mac startup problems can be found by analyzing when in the boot process the system fails. Karen. any advice for today so she can at least try to do something … your advice and/or thoughts would be most appreciated! Terms — Especially with the items listed in the second article, failure of the system to retain these settings indicates a weak PRAM battery. If that doesn’t work, an Archive & Install may be needed. I recently tried to change the permissions on the main OS drive where you click get info and allow everyone to read and write and I applied it to all enclosed items…what happened was a series of windows saying such and such software was improperly installed please reinstall it…, I had to click ok for 2 straight minutes… so I tried repairing disk permissions while it was still running…it would just kick up the same windows as mentioned above and stall the permissions task… so I tried to restart the computer…, It wouldn’t successfully start, it gets to the apple logo with the wheel going…, I’ve tried start up on install disk which works but disk repair says volume is OK, same with disk permissions, entering some terminal commands, I have not successfully got safe boot working, once it gets past the loading bar it goes to staying on the gray logo screen forever…. This may be the logic board, bad RAM, the power manager, a video card, etc.. Bad RAM can be a common culprit – on newer Macs, a blinking sequence of lights at startup can indicate this condition. A too-weak or dead battery on most any Mac can cause booting problems. Apple may provide or recommend responses as a possible solution based on the information provided; every potential issue may involve several factors not detailed in the conversations captured in an electronic forum and Apple can therefore provide no guarantee as to the efficacy of any proposed solutions on the community forums. Adam Rosen – Submitted on 2010/08/24 at 1:42 pm Stil waiting for root device (in perpetuity). it depends on if you are constantly using your Mac or letting it sit unplugged or in storage for long periods. Thanks! Remove battery to locate. Don’t laugh but I have an old machine from 90s running 8.6 that still does some useful stuff. Repeat for each DIMM in succession until you find the culprit. To lift keyboard, pull back on the release tabs between the F-keys. any help much appreciated! If your Mac has an optical drive (aka SuperDrive – most do) you can boot from an Apple software install CD or DVD – insert your disc, restart and hold down the C key. Jill – you’re likely looking at a hardware problem, possibly bad motherboard. All postings and use of the content on this site are subject to the. Listening to your computer may seem a bit metaphysical, but can provide helpful clues to startup problems. I never had any battery problem, but they say that PRAM battery lasts generally 5 years, and considering that the next week I plan to open my iMac to upgrade it, I was thinking that it is a good time to change the battery also. Sure enough, I got a chime. My daughter’s laptop will not start .. at all! A kernel panic is an Operating System crash with an historically colorful name. Apr 4, 2012 12:18 PM in response to iHack501 I tried booting from the install DVD and no luck either. I had that happen in one of my beige G3s. A weak PRAM battery, however, has no bearing on data tansfer., This site contains user submitted content, comments and opinions and is for informational purposes only. This is made worse If i have the internet connected. If i desonnect the internet I am able to resart my compter and it will eventually startup. That is: the march of extensions happens as normal but it can render the desktop at the next step. Kacey. That’s usually a capacitor which has given up the ghost and burst open. I am not that computer literate but have tried searching through the Apple help menus to no avail. Presented in your native language, or something close. We have an iMac7,1 with Intel Core 2 Duo and System Version: Mac OS X 10.4.11 (8S2167). If you've already installed a new battery and that didn't restore normal operation, you need to consider other hardware component issues. A dead PRAM battery: if not connected to the internet, when shut ff and turned back on will not keep date and time, printer will drop off line. Texas Mac Man, Apr 5, 2012 3:07 PM in response to iHack501. What is going on? I’m sure there are many other tips and suggestions on the topic of Mac startup problems; please let us know some of your ideas and experiences in the comments. Fortunately this is easy to test for:  shut down the computer, remove one RAM DIMM at a time (remove in pairs on the Mac Pro or PowerMac G5), then reboot. Everything's plugged in, the RAM, video card, porcessor, and logic board have been removed and reseated yet It only powers up and has a black screen. I've read that it could be the battery and so i replaced it, but it still won't turn on.". —– Is my only hope reinstalling the OS and losing all my data? I have so much work to do but I can not trust my machine. Since you know the disk is good, worth replacing the HDD cable next (it’s cheap) and see if that works. —– Macs also have another battery, called the PRAM (or NV-RAM) battery, that saves things like network settings, choice of startup drive, etc. Such are the workings of UNIX. If the date and time reset each time you unplug the Mac you need a new PRAM battery. Ian – Submitted on 2010/08/30 at 11:55 am Remove main battery and AC for an hour to test. iMac G4, iMac G3 - Underside of the iMac. The board can boot fine with no PRAM battery connected. iBook (White) - Under the keyboard. Corrupt Fonts or bad Preference Files (.plist) are common culprits. Karen – it sounds like your user account is corrupt. That’s usually about a couple hundred dollars (US) to replace, parts and labor. Failed power supplies are sometimes accompanied by a popping sound. I wasnt aware of what it was called. Is there anyway to force the login/password screen to come up when I open my computer? We tried changing the password but it makes no difference. See your Mac Owner’s Manual (or Google for instructions) on to remove and install RAM. PowerMac G3 (b&w)-OTHER, Macs are reliable machines but on the rare occasions, they may start acting strangely for no obvious reason. The following questions are helpful to narrow down the cause of your Mac’s lethargy: If your Mac won’t power on at all, likely suspects are a failed power supply, a bad logic board, a blown fuse (on desktops), a dead battery or a bad AC adapter (on portables). To start the conversation again, simply ask a new question. Intel Macs can also boot from a USB flash drive which contains a bootable disk image, this can be very handy in an emergency.

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