IMac PPC :: G4 PPC Black Screen On Startup?
Mar 19, 2012
I have been limping along for quite some time with a recurring problem with my PPC Flat Panel iMac G4.Sometimes when starting up I would get a black screen. The unit chimes at startup but the screen would stay black.I found that I was able to fix (temporary) the problem by removing the bottom plate and pushing the reset button under the base.(After shutting down and unplugging the unit.) after the startup chime, the screen turned gray with a folder icon in the center with a blinking question mark.After shutting down and restarting, this happened again 3 times.On the 4th shutdown/startup it went back to the black screen.Repeated shutdown/restarts have no effect.Shutting down, unplugging the unit and pushing the reset button is also having no effect.I hear the startup chime every time. Black screen every time as well now.Â
Info:
iMac, Mac OS X (10.4.11)
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Apr 5, 2007
My brother's iBook G4 (I think it's a 2003 model) has a problem with the screen. When the computer is turned on, the screen stays black, although the backlight is on (the apple glows). Sometimes, on start up, the screen works normally for a random amount of time before going fuzzy and then black again.
Any ideas on how to fix this? Is it likely to be a problem with the hardware in the actual computer, or just the screen? Or is it a software thing?
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Apr 30, 2007
My iBook will not display anything on its screen. Rather, it just remains black. One time, the screen did come on, but then shortly after booting, it flickered a lot and then went black again. A year ago, something similiar happened and when I took it to be serviced (when I had AppleCare), they had to send it away and have a new logic board installed. Now this machine is out of warrenty and and I am not sure what to do, or even if it is the same problem. Any suggestions?? Thanks!
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Jun 3, 2014
After an update(I think) I can no longer get into my computer. When turned on I get the apple logo then a grey screen that turns to black but the curser is active . Then there is no more progress to the startup screen
Info:
MacBook Pro, iOS 7.1.1
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Mar 23, 2012
Just got my macpro few days ago and black screen shows at start up, sound and keyboard light will turn on Except for the screen. I dont know what to do!
Info:MacBook Pro (15-inch Late 2011)
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Sep 28, 2010
I have a Mac Pro (Early 2008) running on 10.5.8 OSX with apple 20" display and 16G RAM.
Initially started with my MACPRO not waking up from sleep and has to force the shut down with power button. Finally realised it was due to my Epson scanner connected via USB...
The main issues now is with the display, black screen on startup. I can still control the volume and disk eject/close, just no display. Force shut down with power button numerous time but futile. Finally solved it with SMC reset.
it becomes an on and off issues... and continuously I solved it with SMC reset.... sometimes needed 2 or 3 resets to get it to work,and finally for the past few days... SMC reset can't solve it either... no display on startup, and same thing I can control the volume and disk eject/close. Have tried my monitor on other mac and it worked fine.
Now this is strange. if I let the mac cool off totally,after a SMC reset. the display will comes up fine...
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Oct 19, 2009
Last night I was using my computer all fine. However this morning I turn it up, the white light where you push to open the lid, is on without flashing, and there is a black screen.
Please note that I have not installed any new hardware devices i.e. hard drive, ram, etc.
I tried to push the power button for like 10 seconds straight when I turned on to see if that would fix the problem but no. I can hear the hard drive starting up when I push the power button but black screen.
Could this perhaps be one of those faulty 8800 M GT nvidia gfx?
But I'm scared to take it to Apple because earlier this year, I took it apart and redid the thermal pasting and I kind of have screw drive marks on my keyboard aluminum part... It's like so obvious I opened it before. But, my 1 year coverage is already over so hope that doesn't eliminate me from getting that nvidia service in the case that it is the gfx card hardware problem?
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Jun 25, 2014
every morning I turn on my new Macbook Pro the screen stays black. When I move close to the screen I can see the password entering box far away, when I then type it it is booting into Mac OS X but the screen is still off. After some time, the screen blinks a couple of times and then the screen is displayed as it should and I can work all day.Â
I have resetted PRAM and called Apple Care. They made me reinstall OS X mavericks.Can it have something to do with the fact I have FileVault enabled on the disk?
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Jul 22, 2010
I just replaced my LCD. It was working fine, but now just stopped working. It's a mid-2009 A1286 15in Macbook Pro.
The computer itself works fine and I tested it using an external monitor. I can FAINTLY make out the display on the screen, so I'm guessing it is a backlight issue? Don't mid-2009 don't have display inverters?
I also tried resetting the pram and SMC.
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Mar 8, 2012
I have had to do hard restarts in Lion when it satrts up with a black scren and the mouse pointer and nothing else. It happened most recently today with a scheduled wake up from being asleep. The other day it restarted with the pointer acting as a painting program and actually colored the path of the cursor until it eventually painted in enough of the login window to enter my password and log in... I have reinstalled the os from the App store and it still acts strange some times...
Info:
Mac Pro, Mac OS X (10.7.3), 2007 model, 3 Ghz quad
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Apr 1, 2012
This 5 year old iMac makes the seek optical drive sound when switched on, but does not chime, but I can hear the hard drive going afterwards.
The screen just stays black, not a flicker.
The problem is that it is located in a small pretty isolated town in NE Brazil, I will be going back out there later in the summer so if anyone has any helpful ideas it would be most welcome. Fortunately we have a full CCC clone of the hard drive and a working MBP so we haven't lost anything, but it would be very good to have it working again.
Does it have a socket for an external monitor, I really cannot remember, as I have not seen it since November, I know the old round iMacs had one.
The nearest Mac store is probably in Rio or Sao Paulo which are a good day travelling by car and plane so there is no chance of getting it there.
Info:
iMac, Mac OS X (10.4.11)
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Jun 19, 2012
I replaced my hard drvie in my A1208 iMac yesterday, and didn't have the OS disc or a keyboard. After installing the HD, I booted the computer to make sure everything was working. I got the "?" screen, and everything seemend to be working just fine. So today, I picked up a keyboard from the Apple store and dug out the disc After I got back home, I booted the computer to install the OS, and the screen went black a few seconds after the chime and grey screen, but was still running. (I could hear the fan and disc spinning) I've tried to restart, but i'm still having the same problem. I've tried to research other issues, but haven't found anything comparable.
Info:
iMac
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May 24, 2012
I came back from work to wake up my iMac. It made the noise but the screen stayed black. I tried restarting by holding the power button- I can hear it start and the chime but still have a black screen. I tried resetting the pram, and unplugging the cord but I still get a black screen. I can hear the chime though; I'm not sure if that means anything. I just had the hard drive replaced in February so I hope it's not that. just wanted to clarify that when I restart, I get the chime but the screen stays black- I don't get to the grey screen. So I'm assuming right now that my display may be shot?
Info:
iMac (20-inch Mid 2007), Mac OS X (10.5.8)
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Mar 12, 2012
Recently my Mac has been extremely unstable. It keeps freezing up and hanging for no reason. Initially a 3 beep would sound off, I ran some tests like the apple hardware one and realised that one of the rams was bad. I bought 2 new sticks of ram and replaced it. Following which, the mac still freezes up and a 3 beep alarm sounded off again.
Currently, I'm trying to turn it on, no 3 beep signal is sounding off but the Mac either keeps freezing and showing a highly pixelated screen or a black screen surfaces. There is some sound coming off from the laptop as well. Each time I switch on the system, it just shows a black screen with no display.
The Mac is a 15'' 2.66 MHz i7 which was manufactured in the mid 2010s.
The 2 new sticks of ram are Strontium 1066Mhz 4Gb x 2 sticks.
In the initial stages: kernel panics were common as well.
Info:
MacBook Pro (15-inch Mid 2010), Mac OS X (10.6.8)
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May 5, 2012
The latest iMac model. When I click on the power button: I can hear the Hard disk and the DVD drive spin up. The screen stays black. The startup sounds plays half way through the first time, like its being cut off. After the first startup chime has been cut, the chime keeps playing in a loop. The computer doesn't come any further than that.
I have tried: Unplugging all peripherals, with the same result.
SMC reset: Unplug power cord and hold power button for 5 sec. PRAM reset...
It seems like the computer does not even get to boot and ignores all keyboard input. I also tried booting from the DVD drive with the installation disk. But I can't get any further than the repeating startup chimes.
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May 13, 2012
I cant seem to make it shut down completely or re-start, it seems to be in sleep mode and wont wake up. When I try and restart it makes a sound like its trying to eject a disc (there is nothing in the cd drive).
Info:
MacBook Pro (15-inch Early 2008)
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May 17, 2009
My friends alu intel imac is having a problem. When he power on the machine the computer gets stuck on a blue screen.
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Jan 2, 2011
Got me a Second Hand iMac g5 with OSX 10.6 on Screen is black. I changed Power Cable = no Result seen i opened and a thinny Cable from hard drive were not connected. I had to remove the Ram to do that,but no Result i opened again and found another thinny Cable from Broadband Socked comming out. I connected it but nothing happening i opened again with all Leads removed. I removed the Battery inside,pushed after 2 Hour such small Button inside,put Battery in Place,switched on and nothing happened. i pressed the power-Button twice,and on second Time the Screen went White and Fan blow as Hell,but stuck on that. I switched off and on and it was Black again. I disconnected the Lead and switched on after 5 Hour and nothing happens I removed Battery again,pushed after 2 Hour thinny black button inside and nothing when started With nothing happened i always mean "The screen is black",but the Start sound is and i hear a little Fan,and Keyboard reactes with Light on keyboard and with Ping on Computer if i push some Buttons.Mouse has light on Well. seems Screen works. I did not get the Software. It is Snow leopard on but i don't know if re-installing would help or if i need the Pack for 3150.- or what it cost. I also don't know if not Video-Card or logic board fails
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Aug 4, 2009
Let me start by saying I have swapped the ram in the computer and the problem persists. I've also tried resetting the PRAM. I have unplugged all devices except the keyboard and mouse. I have reformatted and installed OS X Leopard, Tiger and Snow Leopard. I have even encountered this issue while the computer was running from the install disk. I'm pretty sure software, ram and third party devices can be eliminated from the possible causes. The computer continues to run after the screen goes black. I am connected to it right now using screen sharing, so I know the computer is still working. Putting the computer to sleep and then waking it up temporarily brings the screen back until its next random blackout. I have opened the computer to replace a dead HD, so I suppose it is possible that I knocked something in the process, but I did that back in December and the problem is a relatively recent development. I would really prefer to fix this myself, if I could only figure out what the problem is.
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Mar 31, 2010
I have been experiencing some unusual problems with my imac. While on the internet today my computer crashed on me twice, the first time the screen just showed a bunch of vertical lines, the second it flashed some random colors then went black. After the screen change the computer was unresponsive. I have a bad feeling, is it due to overheating, a bad logic board or something else. This is the first time I have ever experienced this on a mac. Has anyone had any simiar issues? Or am I up **** creek? I can't really afford a new computer seeing that I just bought an iPad (it comes Saturday). I am not sure if my computer is still under apple care and even if it was I won't get it back by the time I have to go back to college. I attached a screen shot of my computer temps.
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Apr 26, 2010
When I turn my Imac, it goes from the white screen to a black screen, then blue and then desktop. The whole process is fast, but is not normal. (at least is not like my previous MBP or the videos that I have seen on youtube) At the black screen stage, I can see some boot up information, etc, It is fast so I am not able to read it all. It looks like when booting an old windows or dos machine How can I change this? Is this normal? It also shows the screen when I shut down.
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Mar 14, 2012
When I try to type an uppercase letter using the left hand shift key, the screen background turns black and no letter appears.
Info:
iMac, Mac OS X (10.5.8), power pc
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May 1, 2012
my iMac(mid-2010) screen goes black soon after startup.i did notice some flickering about a week ago.i tried shutting it down,removing the power cord and all peripherals but it didn't help.i had done a software update a few days before the flickering started.
Info:
iMac (21.5-inch Mid 2010), Mac OS X (10.7.3)
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Sep 24, 2010
The screen randomly turns black without any major reasons. It doesn't seem to be a sleep mode/screen saver thing as the music continues to play on. I can adjust the volume or pause the music with the keyboard but the screen just won't turn back on. I have to shut it down using the power button and it happened several time the last couple days. Anyone else experience the same thing and got a solution?
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Dec 1, 2009
I decided I was going to install XP on a bootcamp partition tonight and everything went fine until I installed the Bootcamp 3 software. After installing the Bootcamp drivers the machine rebooted and I ended up with a black screen in Windows. I did hear the XP welcome music so I figured it was a display driver issue. I rebooted into safe mode and deleted the ATI 4850 driver and restarted. After removing the bootcamp driver everything was normal again other than the fact that I only had the default Windows drivers running.
What am I doing wrong? I installed XP off of an XP disc with SP2 already on it and ran the Bootcamp install off the Snow Leopard disc. Finally, not sure if this matters, I am running one of the new i7 iMacs.
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Apr 18, 2010
See the pictures. They look almost like ink but no ink has been near the screen.Tried cleaning the screen but with no luck. It lies on top of any open window.
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Jun 22, 2014
My imac boots up and then the screen goes black, i have made a short video to show the error...i have also run disk utility and it comes back with no errors. URL....
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Jun 1, 2014
This just started yesterday (May 31st). I keep everything updated as it comes out and nothing new has been installed in the last couple of days.
When I need I wake up my iMac (now requiring a keystroke or mouse press instead of just moving the mouse), the screen comes up black, but the cursor is there and moves around fine.Â
It stays black for a while (15 seconds or longer, but it feels like forever) and then it finally comes up completely.Â
Info:
iMac (27-inch Mid 2011), OS X Mavericks (10.9.3)
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Aug 11, 2009
The screen/crt of the imac that I have been using since about '98 went black - this actually happened a couple times previously but I was able to get back in (no idea - one of those things where out of frustration you just start pushing everything at once and it suddenly pops back on). I have tried everything - the internal battery, that little button on the motherboard (not sure if that is what it is called) that resets everything, the connection of the main power button on the front, etc. I am fairly sure it is stuck in sleep-mode or something (no beeps, hard drive doesn't make the usual booting-up sounds but you can tell that it is receiving power) but after months of wasted effort I finally gave up. I bought another slot-loading G3 and would like to swap hard-drives between the two - I have taken my old G3 completely apart so many times that I am totally comfortable with that aspect but have hesitated because if I somehow blow this one I will be left with nothing.
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Dec 21, 2010
For the past few weeks it has been going to a black screen when trying to wake it up from sleep. Either I've put it through too much work lately editing all these photos and its really tired. So, often it wakes up normally and functions fine, well, not really. It is seemingly very slow. It requires a lot of time (more than before) to open up a program or it gives me the "spinning wheel of death" when trying to go to a different page on the internet or open up a folder on my desktop. Amongst other things that require it to think. So It's just a lot slower in general than before.
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