I installed several system updates on my 2007 iMac last night, running OS 10.7, and today I can only get a black screen with a flashing white power light when I try to start up. My computer will neither start up nor completely shut down, and my wired keyboard won't communicate either.
View 5 RepliesMy PPC G5 Mac Power Pro has been working fine, on one startup recently the screen didn't come on, the keyboard and mouse did not pass the startup test and the white light flashes three times. After a while the fans go into hovercraft mode! I've reseated the RAm and checked all other cards.
Info:
PowerMac, Mac OS X (10.5.8), To be supplied
I have an old macbookpro which doesn't have a good battery. last night it shut off because I didn't have the power chord attached. now I can't power it up. the light on the power chord flashes (slowly) between red and green.
Info:
MacBook Pro, Mac OS X (10.4.7)
My MacBook Air's (2008) screen went blank. Now the power light flashes and it beeps continuously. I have tried rebooting, but no change.
Info:
apple, Mac OS X (10.6.5), iPhone macbook air iPad AppleTV (both)
My brother has a second gen, 800Mhz eMac (the one that could be overclocked to 1.33Ghz - the earlier PC133 ram model). Since about 1.5 mths ago, when he powers it on, sometimes it will not power on, and other times it will give three beeps (diagnostic pages say bad RAM) and a flashing power/sleep light in unison with the beeps. Did this vintage suffer bad caps? I recall that it was only the 1.25Ghz model that had bad caps, but I could be wrong.
View 3 Replies View RelatedWhen shutting down, we get a familiar light blue screen before the computer turns off. I'm getting this flashing at me while operating my MBP. It seems to happen twice, every so often. The screen will turn blue and become empty simultaneously for about a half second - then the screen I'm expecting to see comes back for about half a second - and then the light blue screen comes back again for about a half a second, and then everything goes back to normal.What the heck is this?
I must say, I'm having a little bit of a difficult time with my switch to Apple from Microsoft last November. I've already had to replace the logic board, it appears as if my network card is no longer working (I can only connect via WiFi) - and now I'm having this odd light-blue screen flashing... My video card?
My White iMac 24" won't boot up anymore.I noticed he was running slow lately and in the browser he crashed regularly so I need to reboot.Using the power button I have to shut him down and reboot again, only, the last time, he refused to boot up.Instead I got a solid black screen, and a solid white power light at the front... When booting the only thing I hear is a little buzz and then, nothing... Several support forums said this wasn't very good and it might be the last breath of my iMac. Trying a few things, hoping they would bring him back to life couldn't help:
- Power on with "c" kept down
- power on with control+option+p+r was something I read
- Power on with "shift" kept down
nothing would work.
Info:
iMac, Mac OS X (10.6.8)
I have a problem with my screen - when there is something black on, I can see a faint mark of a lighter colour. I have tried to take a picture, please excuse the poor quality. There is nothing visible when the screen is off, even under close examination. Is it less visible when lighter things are on the screen, and invisible when the screen is white.
No drops or liquid spills. Will this go away on it's own? Any fixes?
I received my computer back from them yesterday, but when i opened it it was COVERED in packing material? (Thats what they said anyway). After talking to them they said they would cover my laptop for 90 days from water damage or Accidental damage! Only problem is, my computer screen flashes black randomly.. Anyone have any experience with it? So far they replaced the screen and the logic board...
View 3 Replies View RelatedI have an iMac 2.8 24 inch, about Two years old running 10.5.7 , when I start the computer it shows the normal Gray screen for about 30 seconds, then the screen goes all Black , but with a small flashing white line ( _ ) in the top Left hand side corner.
It just stays all Black for ever , I then hold down the On / Off button and turn off the computer, I then hold down the keyboard '' option key '' and press the on button at the same time , then I get the option to start from the main HDD , I click the Icon and the computer then starts normally , and every thing runs ok.
Can some one please tell me what I have to do to get my iMac to start up normally again , Ive run Repair Disk permissions but the problem still occurs . Over the last few day's Ive been trying out a few new applications, so not too sure if this has any thing to do with this current problem
I tried to install Windows 7 via Bootcamp a couple weeks back, but shortly after it failed, I deleted the Bootcamp partition in Bootcamp Assistant. However, whenever I want to boot my computer, it tries to go into the Windows Installation, but it gets stuck on the flashing underscore on the top left of the black screen. Henceforth, whenever I want to boot into OSX, I have to hold down both ALT keys. is there any way of fixing this so the iMac boots STRAIGHT into OSX (like normally)
View 2 Replies View RelatedMy faithful and trusted Intel Mac mini 1.83 C2D that I bought new in December 2007 suddenly died during a major 10.6.3 update install. It almost completed the update and the screen went black and the light went off instantly. The power button doesn't respond at all. I had major work projects going on Sunday night when I took a break, quit all applications and did the software update and it died. I took it to the Apple Store Monday morning thinking it was the power supply. I was informed that the logic board is dead and my HD has to be wiped and OS X reinstalled. The repair would cost well over $300 and have a 90 day warranty with the same logic board installed that could fail again. Ironically enough, I had been thinking about buying another new Mac mini and a new Mac mini Server for work. That's not going to happen now. I left the Apple store with my new $600 paper weight for my desk. What would you do? This was a sad day in my faith in Apple products. Apple Mac mini lemon? While my 500Mhz Cube serves me very well day to day at work, I do need my 10.6 Mac mini to run iMovie '09 to put together my videos for [URL]
View 24 Replies View RelatedI've got a nasty issue with my 13-mo. old MacBook.
I'm pretty sure it's a dead logic board and possibly a dead hard drive, which I really, really, really hope not as I don't have backups of everything on the drive. I just upgraded to Leopard this past week and did a clean install so not all of my stuff is setup yet.
Power adapter and battery are inserted. All 3rd party peripherals and RAM have been removed.
MacBook does not chime at boot. The screen flickers, but stays black. If I hold down the power button then try to let it boot the light on the front right flashes constantly (like when it's sleeping but a faster pace), like a turn signal on a car. I can hear the cd-rom drive whining but everything else is dead silent.
I've done everything here with the exception of calling Apple.[URL]
I've also tried FW Target Disk Mode, but the MacBook drive does not show up.
I've done everything I can think of and I'm out of ideas at this point.
Additionally, there's a cd-rom (Tiger Restore CD) stuck in the drive. Holding down the mouse button during restart does not eject this CD. Where is the force eject button (I see no pinhole)?
I have business documents, emails, etc. that I HAVE TO get off this hard drive. How can I do it? I don't have a 2.5" drive enclosure but if that will solve the situation I will pick one up asap.
Desktop restart shows flickering black/white screen, then black. Could not restart.
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iPad 2, Mac OS X (10.6.6)
I have a 2.0 GHz early 2005 Power Mac G5 (7,3) that won't get past the light blue screen at start-up. I've tried everything - reset the PRAM, Apple Hardware Check (on overnight loops, everything came back OK), fsck (all OK), repaired my HD and permissions on it, and then erased the drive using Target Disk Mode and another Mac, and attempted to reinstall OSX from the install disk that came with it (with OSX Tiger). I've tried switching out the RAM with no luck.
The only thing I haven't tried is a new video card (the installed one is an ATI Radeon 9600). Here's what it does: powers on with the usual chime, then moves on to the white Apple screen, the wheel spins, then it moves on to a darker blue screen, then it finally moves on to a lighter blue screen with an arrow, and it just stays there. It will boot into safe mode (pressing shift), but I can't even upgrade to Leopard in safe mode, much less figure out what's wrong.
My imac does not turn on, not even make the noise when booting up. The only sign of life is the blinking light that tells you is on.
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iMac, iOS 5.1
When I start my computer up in the morning everything else starts normally. First the light comes on on the front of the computer and on the bottom of the monitor, then the start up tone rings and the computer is fully running. But my monitor is black and I do not get the apple picture or nothing on the screen. I thought my monitor was going out, but we have another work station the same and I switched the monitors (same 27" cinema screen as mine). I can actually use the other computer and network into my computer and fully use everything on my computer. But my monitor is black (no display)! I have contacted MAC and have reset the PMU button many times and sometimes this works, but most of the time it does not. I just keep restarting the computer and finally it will start up normally with the display and everything.
Information:
Dual 2ghz PowerPc g5
Mac OS X (10.4.11)
27" Cinema Screen
After the 10.5.1 software I'm having a problem with distorted (stripes etc.) icons and menu dropdowns. Apparently not on my desktop or programs like Safari, Mail etc., only on icons and menu dropdowns, which I find odd. Sometimes it's gone, but after some time it reappears again. Anyway, sometimes my Mac (iMac G5, PowerMac12,1, 1.9 GHz) is going bonkers completely, which results in a first pink, then black screen. A hard shut down is then the only option. However, I guess it's videocard related (ATI Radeon X600 Pro). I did all the tests, fixes you can think of, but without any results. I contacted Apple support, but because this is an iMac, you can't just replace the card, they told me that the whole motherboard should be replaced, which will cost me approx. 700 EURO. Of course I am not willing to do that, which means that I'll have to buy a new Mac. Of course a new Mac is always a delight, but I find replacement after just 2 years unacceptable.
Information:
iMac G5 PowerMac12,1
Mac OS X (10.5.1)
I have a black screen which beeps when I try to power on.
Info:MacBook Air (11-inch Late 2010)
I have been given a 1.6 Dual G5 running 10.3. I tried to upgrade to 10.4, the first disc installed but crashed several times on disc 2. I had run DU previously to check there were no problem. Each restart took me back to disc 2 which failed to install. I then tried to install 10.5 (Leopard) booting directly from the disc, it started then crashed leaving a black screen with the following promt:
local host:/root* (a hash not an asterisk!)
Anybody offer any suggestions as to what I should do?
Information:
G5 1.6 Dual
Can't get back to my desk top. All I have is a black screen with white text starting Darwin bsd. Have tried a safe reboot but after grey then normal blue screen when loading, this disappears and I get back to the black screen again.
Info:PowerMac, Mac OS X (10.4.11), G4
Do not want a nuisance to escalate into a serious problem thru benign neglect. Random black screen -- Turn monitor off then on, and all comes back fine. No loss of power in machine, no fan quirks, no overheating. Is it the Monitor? or the graphics card?
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PowerMac, Mac OS X (10.5.8), 6GB DDR2 SDRAM
My G4 recently will not boot. I get the chime, it starts to boot, but almost never completes before I get the "you must restart you Mac" screen.I have the correct hardware test disc. I started using that two days ago. It still has not completed testing the logic board and the system is unresponsive. I guess that means the board is fried?
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PowerMac, Mac OS X (10.4.11), G4 Quicksilver, 1Ghz dual processor
I've had problems with my Mac for a while now. First of all, it indicated ram problems with 2 beeps. I later fixed this by moving and changing around modules. It was solved, but now a new problem. The Mac seems to turn on, making its iconic sound for startup, but the screen remains black. After about a half to one minute, the fans go crazy and I have to shut it off. I've tried a few things like holding shift or alt, but that doesn't work as it doesn't even display a white screen.
I need to know what to do and I don't really have the time to buy new parts right now. I'm really a windows based pc fixer by the way so I'm new to fixing macs.
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iPad, iOS 5.0.1
I was using my macbook pro and the screen went black and when I tried to turn the computer back on with the power button it keeps beeping at me. Is it gone?
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macbook pro, Mac OS X (10.6.2)
I turned my Mac onto and all I got was a white flashing light on the front.
View 6 Replies View RelatedI have a G5. It started whining loudly and now it has a black sceen. Can't find old discs to reboot.
View 8 Replies View RelatedMy computer seemed locked up, nothing would open. I had to force quiy everthing. I tried to normally shut it down and it wouldnt shut down. I held the on off power switch. When I tried to turn it back on It stays tuck on the white screen with a flashing folder icon with a question mark in it . Has my hard drive gone bad?
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iMac (24-inch Mid 2007), Mac OS X (10.6.8)
I have not been able to startup my iMac for 3 days. When I turn it on all I get it is a white screen. After about 10 minutes a folder with Question mark inside apears in the middle of the screen and it just stays like this. I unplugged everything from the computer except for the mouse and keyboard. I had this computer since 2008 and never had a problem until now.Please help
Info:
IMAC 24 2.8, Mac OS X (10.5.2), 2 GB RAM
We did the most recent update that Apple produced and our iMac has yet to turn back on properly. We get a white screen with a flashing grey folder that has a question mark on it..
Info:
iMac, Mac OS X (10.7.4)
