IMac :: I5 Boot Up Black Screen
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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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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Jun 16, 2010
I am in a pickle. I turned off my pro for the night and when i went to turn it back on I get a black screen and the white light not flashing. at a lost for what to do next. I followed the Apple troubleshooting tips but nothingis working. I can hear the drive hum but nothing else happens.
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Mar 23, 2012
Mac book pro black screen will not boot
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Nov 30, 2014
When I boot up I get the gong but only black screen...
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Jun 25, 2010
I just had a quick power interruption for about a second while I was using my laptop. The laptop shut down and will not boot up. The screen is black. Any ideas on what is the problem?
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May 31, 2010
Loaded pics up for the 1st time from my 7d into Aperture 1.5 and left my computer on, woke up and it wouldn't come out of sleep. I did a hard shutdown holding down the power button and the screen just stays black and I never hear the chime, light on power button is solid white. Since I'm on vacation with my wife and infant daughter I don't have time to mess around troubleshooting but see it may be a failed logic board? Do they just fail randomly or what? My aunt that I'm staying with turned off a surge protector a light was plugged into, I was using her power charger for her MacBook Pro and only this morning found out it was plugged directly into the outlet below the surge protector was on that she flipped off.
Could that have created a surge on the other plug or something? She does this all the time with her MacBook Pro plugged in and its never created a problem, I'm writing this post from her computer right now! (Only brought the Mac out because my iPad wouldn't load the photos for some reason, don't know if it has something to do with the HD video or because I also had photos from my Canon 50d on there or if that has something to do with my Mac's problem?) I've attempted an SMC restart and it does the same thing? I'm now extremely stressed thinking I may have lost all my pics that I haven't backed up in months of my infant daughter. When I start it up I hear an initial sound of a hardrive spin or fan but then its basically silent.
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Jul 2, 2007
I've encountered an interesting, if not incredibly frustrating, problem on my Macbook Pro and I was hoping someone might be able to help me diagnose and rectify it. I had installed XP via Boot Camp 1.1 in August successfully and used my XP partition for a few months. Then, one day, when I went to boot into XP, after selecting my XP partition at the startup screen, my computer went to a black screen with no cursor or error message. I had no idea what to do, so I decided to simply delete my partition and create a new one and reinstall Windows. After deleting it and firing up Boot Camp, I encountered the very same black screen when Boot Camp restarted my computer. It would go to the grey startup screen first, but then to a black screen. The XP install disc would seemingly spin up properly, but nothing ever showed on screen. I then tried any number of possible fixes, including zeroing my entire hard disc and reinstalling OS X and Boot Camp (now 1.3), but have had the same result each time. I have begun to suspect that the problem is related to the EFI, but I don't know very much about that sort of things and don't really know how to adjust its settings or reinstall it. I've downloaded the most recent EFI firmware, but when I try to open the file OS X insists that my firmware is already up to date. I've been scouring the internet for the last couple weeks and am yet to come up with a solution.
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Feb 2, 2009
I have an older MacBook and when I bought it, from a friend, it already had windows running on it. Just the other day I went to restart my computer and all I got want the black screen saying that the computer was turned off wrong and to choose the start up mode. I tried the last known option and nothing happened besides restarting to the same screen. Then I tried the normal mode and that didn't work and safe mode did the same thing, starting back up to the black screen. Is there something that I can do/fix, or does this require some professional.
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Feb 19, 2009
Today I came home from work and turned on my Mac Pro. At first everything appeared normal and I walked away on a call for a few minutes. Out of the corner of my eye I noticed the screen was flashing to black off and on. I turned off the tower to try and restart it and now it wont boot!
I have removed all other hard drives aside from the boot drive. Re-seated all RAM. Tried various combination's of RAM. Tried to load the snow leopard install only to get a kernal panic. Tried again with just RAM and received a kenal panic as well.
*Update* It seems that the RAM when I swapped it out was VERY hot for only being in a short period of time (under 10 min). Not sure if this helps.
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Feb 23, 2010
I have a MacBook Pro with Leopard. On boot, I get a screen of vertical blue stripes with the Apple logo, sometimes intact, sometimes split across the stripes. The spinning activity wheel is there too. After about 30 seconds, it gives up the ghost and the screen goes blank. It's still powered on, but just the screen is blank.
I've attached an image of what the screen looks like.
I've tried Command Option PR to reset the PRAM and VRAM but the problem remains. Any ideas?
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Mar 13, 2009
I didn't have an internet connection so I rebooted the computer -- I wish I'd just rebooted the modem now. When it "rebooted" it didn't boot up but a black screen with a lot of white type saying the start up of various things failed -- it looked like a PC script type thing. Then that type disappeared leaving a black screen and just a white cursor that moves when I hit the space bar. This is the computer for the place I'm working and I'm not even sure what generation Mac it is, though I'll try to find out. I hope, hope, hope that there is some kind of simple resolution to this.
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Dec 3, 2010
Macbook: A1181 Core 2 Duo 2.0ghz 1GB RAM
DVD disk: Leopard 10.5 Retail install
Hard drive: dead (spins with clicks).
With regular startup I get the flashing question mark and can hear the failed hard drive click and spin. After getting the DVD to boot in the drive (it doesn't suck it in right away), I get an apple logo and pinwheel like I should, but after about 30 seconds it goes to a black (blank) screen and the DVD spins down, but not all the way. The computer is still on, but nothing happens.
Oddities:
<>If I start it with an iMac 10.4 DVD I can boot to the install screen just fine, but can't install because it's an iMac DVD. I can erase and partition the drive fine (not the dead one, another one I have).
<>Safe mode boot does the same thing, but takes 20 times as long to boot
<>Retail OSX 10.4 DVD does not boot at all, but that one might be for PowerPC computers. I get the flashing question mark folder.
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Jan 2, 2010
I have a problem: when I restart my Early 2008 MacBook Pro there is no "chime" and the screen remains black. The keyboard doesn't light up or respond to any input, and worse still, the "lid button" light on the front of the notebook remains illuminated, it doesn't blink, it just stays on, shining in my face. I loaded a CD into the optical drive to see if I could use the keyboard to eject it, but this test failed. Now, when I turn on my MBP, I hear the optical drive spinning and the quiet whirr of the fan inside.
I looked on Apple's support website about what to do when a Mac refuses to boot. I tried all of the methods they listed, but since my Mac doesn't respond to keyboard input, all of the techniques failed. Having exhausted everything I could think of, I decided to post here hoping someone could suggest something. I was just on the verge of completing my portfolio website and I would like to salvage my data at least.
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May 2, 2012
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?
Info:
PowerMac, Mac OS X (10.4.11), G4 Quicksilver, 1Ghz dual processor
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May 25, 2012
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.
Info:
iPad, iOS 5.0.1
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Dec 6, 2014
My MacBook is making the startup sound but goes straight to a black/dark grey screen. In other words you can see the screen switching on but it's blank. It's in charge mode, has no other external peripherals attached and it's updated to most recent OSX Yosemite.
I only purchased it in May of this year (refurbished). I have tried booting in to safe mode but again the screen remains the same.
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Apr 8, 2012
Yesterday the trusted and loyal MacPro froze and on reboot kept going straight to a screen which looks like a modern art collaboration between Kasparov, a robot and the ghost of Jackson Pollock. You can see the artwork in the pictures below. Lion has recently been installed. Main programmes used are Logic and Final Cut Pro. I have taken the machine apart and dusted everything down, talked sternly to the ciruit boards, offered bribes to the CPU and even played it Salsa - I figured that this works in breaking the spirits of kidnappers, so it may work with the hard disk. There is a suspicion lingering that the computer was aware of a make or break week of editing coming up and decided to stop working in protest (it is getting on a bit), so I let it rest for a bit before trying another reboot.
Info:
Mac Pro, Mac OS X (10.7.3),
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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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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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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.
Info:
iMac, Mac OS X (10.4.11)
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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.
It stays black for a while (15 seconds or longer, but it feels like forever) and then it finally comes up completely.
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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