Intel Mac :: Computer Not Booting All The Way On
Apr 28, 2012My iMac turns on. A white screen appears, then a apple appears, then the wheel starts to turn but my computer never boots all the way on?
Info:
iMac
My iMac turns on. A white screen appears, then a apple appears, then the wheel starts to turn but my computer never boots all the way on?
Info:
iMac
i have a pc, with a firewire chip, can i boot my iMac G4 from a tiger iso extracted to the hard drive in the pc(with nothing else on it) using the alt/option key? If not, how can i install OS X without the DVD, without using another mac?
View 3 Replies View RelatedI'm just curious if it's possible to put my Mac Pro into TDM, connect it to my MacBook Pro, start it up holding option to choose a start-up disk, and use the Mac Pro's HD to boot up. I'd experiment myself, but the Mac Pro is packed at the moment, and I'd like to know if anyone knows for sure that it will or will not work before digging it out.
View 11 Replies View RelatedI am having troubles after upgrading my ram. I went from 4gb to 8gb and after install it starts to boot then stops.
Info:MacBook Pro (13-inch Mid 2010), Lion os
Got a tricky one here: powerbook G4, 1.25ghz, 1GB RAM (2x512), 80gb HD, APX, 15" LCD, serviceable battery, SuperDrive, OS: 10.4.11. It was brought to me with a boot problem: Computer turns on, gives the start up sound, backlight comes on, apple logo shows, spinner spins... then you get the dimmed screen, large option icon and "You must hold the power button and restart your computer": a kernel panic. I've seen this a few times before and the last time, I fixed it with a new hard drive and the removal of RAM from a bad ram slot.
What I did was:
1) Replaced existing 80GB HD with a backup 30GB drive. Then booted with a Tiger CD (the computer won't start with my disk warrior cd, nor with a tiger DVD). I was able to install Tiger and restart the computer. But the airport card doesn't show up. I tried a known good airport extreme card and this too has not shown up.
2) I hooked up the 80GB drive to my PC via MacDisk and checked it. Sure 'nuf it had loads of problems. MacDisk went through and fixed it (I'm not sure what the problems were as I'm new to MacDisk and don't know what it's looking for and fixing when it does).
3) With the computer running the 30GB known good HD, I started having the same kernel panics so I removed the first RAM chip (512MB) and tried to reset the PRAM.... here's where it went wonky. (I know, only change one thing at a time...)
4) As I said I tried to reset the PRAM (Option, Command, P, R, at start up). While I can get the computer to not boot, it won't restart. I don't know if this is just unique to this machine. Next I tried to reset the NVRAM and again got nothing. The screen wouldn't come on at all. After about three or four resets, the computer did start in Open Firmware mode. I reset the NVRAM from there and restarted (reset-nvram, reset-all). Still nothing on restart.
5) After trying to start it 15 times like this, I swapped the bottom RAM card to the top slot and removed the airport card (again, I'm stupidly trying to change two things at a time). BAM, computer boots... I put back in the 80GB drive that's been "fixed" by MacDrive and BAM, that boots fine too.
So then I put back in the airport card and it will boot, but won't recognize the airport card. I've re-seated it about a dozen times and have used terminal cleaner on the card and on the socket for the ribbon cable from the card slot to the logic board. As it sits, I can't get the airport card (either of the two) to show up at all. I did realize that the open firmware did reference a problem, but I forget the code now and when I looked it up, the references were to a failure of the airport card, but there were also more general references, so I can't be sure.
I'm thinking now that it's the airport card controller on the logic board, the bottom RAM slot and a corruption of the hard drive. Yes, there was a history of moisture into the device and I think a drop in it's past too. I'm the Mac repair technician for the people at the local bike shop, so I get to trade my repair work for their bike repair work. The problem is that they ride their laptops like their bikes, hard and greasy. I'm really wondering about ways to get the airport card back up and running. Or, baring that, a good card-based wireless adapter that I can slide in.
I recently attempted to install the most recent firmware and security updates for mac os x 10.5.8 on my macbook pro 17 inch (purchased about 14 months ago). Computer asked me to reboot, i did, it then gave me instructions for firmware updates.
The screen went dark, and it did its thing, and I returned 10 minutes later. The computer had not rebooted.I pressed the startup key and it gave a long beep. Screen remained dark. Some minutes later it ran the boot cycle, but booted into windows (i have dual boot set up). I can only get into windows now.
my dual 2.3 ghz G5 power mac with 3.5 gig memory running 10.4.11 started crashing (grey screen "you must restart your computer...) and soon stopped booting. suspecting the hard drive as it had been noisy for some time I ran "repair disk" in disk utility from my mac book (connected by firewire, G5 booted as target) and it booted again but soon crashed again and after a couple more crashes it would not boot and attempts to repair failed. I installed a brand new hard drive, installed osx 10.5 and updated it to 10.5.8 and it seemed to install and boot fine but while trying to burn a .dmg dvd with toast (10.0.5) I got the grey screen anain and repeated attempts to burn a disc with the same .dmg resulted in a crash every time. it has also crashed while downloading, playing back itunes hd video, and using an "eye tv hybrid" tv tuner as a dvr. below is the most recent crash log - note that most of them have referenced cpu 0 although the most recent it's cpu 1 -THANX & PLEASE HELPInterval Since Last Panic Report: 0 sec Panics Since Last Report: Anonymous 4A58CF1E-844-409F-8BF3-65A3A3CD2E79.......
View 2 Replies View Relatedi have an ibook g4, and was using it just fine the other night, then when i came back to it a few minutes later it had shut off completely. now when i boot up, the computer freezes at the spinning gear startup screen or at the blank blue screen immediately after the spinning gear. it will boot in single user mode, but it won't boot up with my os x install disc. does anyone know any unix i could try to use to get my mac up and running again, or has anyone had this same problem and knows a fix for it?
View 8 Replies View RelatedMy Macbook pro is not booting properly. When I start it up, it goes through the normal process and gets to a point where a screen comes up telling me: "You need to restart your computer. Hold down the Power button for several seconds or press restart now" This happens every time. I tried to start in safe mode and holding down the option key and selecting the mac partition. Neither would work.
View 3 Replies View RelatedMy computer keeps stalling and rotating beachball won't allow me to move forwards or backwards. Ultimately I need to turn off the power. I have tried resetting the PRAM and SMC but neither seems to help for too long.Â
Info:
iMac, Mac OS X (10.4.11)
My Intel MacBook is in the shop, and I swapped out my hard drive before I sent it in and put it in a USB enclosure. I was able to boot my friend's MacBook Pro from the drive, but my G4 Mac Mini is not seeing it as an option (upon startup or otherwise). I can read files from it, but I really need to boot from the drive for some other things (cookies, passwords, and especially the ability to sync my iPod touch).
View 2 Replies View RelatedI have changed the Everyone permissions to "no access" in MacintoshHD, when I restarted I can see only the white screen. The OS is not booting. I tried using the Disk Utility from the DVD, but no changes, it is still the same.
Info:iPhone 4, iOS 5.0.1
I'm trying to boot a relatively new intel iMac. I can boot to a blue screen, in which all that happens is the music that happens with the welcome video of mac OS X. Â
I currently have no keyboard to do diagnostics with because I don't have the wireless keyboard that came with the mac, nor a wired keyboard. I'm planning on borrowing a simple wired keyboard to use to diagnose the mac in verbose mode and safe mode etc.Â
The owner of the mac has done a complete reinstall, hence the welcome video music, and that hasn't worked, as the screen shows no sign of anything other than blue.
Info:
iMac, Mac OS X (10.6.8)
I powered down my iMac for one day. Upon booting up, my mouse and keyboard do not communicate with the screen.
Info:
iMac, Mac OS X (10.7.3)
G4 DP 450 booting straight to firmware command line and I'm not sure how to proceed from here. Unable to boot from CD.
View 4 Replies View RelatedI Upgrades to Lion last year. Two months ago, suddenly the screen of the iMac went black. I tried to boot but it didn´t. After waiting one day, it worked and i made a backup and I installed Lion again but this time not updating.It worked, never happened again till yesterday. The screen went black, I still could listen to the song that was playing on iTunes but after a while it crashed at all.Hours later could start the computer doing everything i read here: SMC, PRAM reset, start with D, with shift.... and i made the backup but when i was going to install Lion again it went black again and I couldn´t restart my iMac.I´m afraid it´s the NVIDIA card, but i can´t be withouth the computer some weeks. Is there anything i can do to fix it or to boot at least?
Info:
iMac, Mac OS X (10.7.3), Lion Server
Display has black lines when turning on
View 1 Replies View RelatedIMAC very slow, locking up and not booting unless powered down and unplugged. (IMAC OS X 10.6.8 2.5Ghz Intel core) I have performed a detailed HW test twice with no errors and run the disk drive utility with no errors. The computer generally is slow and can spend 3 – 5 minutes with the spinning color wheel between activities. After the computer is fully powered off and plugged it seems to boot normally and work for awhile but then all of the symptoms return. Should I reload the operating system? Today when I booted the machine funny color lines whent across the screen prior to slowly booting.Â
I do have parental controls set which automatically log my daughter off at 930pm when she tried to log in this morning the spinning color wheel ran and ran I could not get the machine to boot by hitting the power button. I need to fully unplug the machine to get it booted. I have also performed all of the software updates. Another strange thing occurred 2 days ago. The machine was locked up and the fan was running at full speed. I had to again power down and unplug it to get it back to life.
Info:
iMac, Mac OS X (10.6.8)
my imac turns on, gets half way through booting up, then just stops.
View 1 Replies View RelatedWhen I turned on my 13 inch Macbook this morning I got a black screen with the message "No bootable disk, insert startup disk and press any key". This has never happened to me before and I am wondering what the cause is and how to avoid it in the future. I got the system to start by pressing and holding down the option key.
View 1 Replies View Relateda bit complicated.  I have a 3 year old iMac, Snow Leopard 10.5.2 on the dics, but I updated it so..a pretty receent version of Snow Leopard. I had had kernel panics before- it turned out to be a bad RAM chip, replaced it and it fixed the problem.Â
This time, I was hoping it was the same. I got a new RAM chip, swapped them out and ID'ed the bad one. Reseated the RAM. Probelm is, when I was trying to fix the problem, I had booted in Safe Mode. Now the iMac starts up normally- the chime, the Apple- AND the Safe Mode bar.
Which progresses for about 5 seconds before another Kernel panic descends. This happens whether the keyboard is connected or not. At this point the Safe Mode at startup bugs me more than the kernel panics! Sigh.Â
I wonder if there's any key combo on startup I could try to at least get out of Safe Mode before Kernel panic sets in. When my laptop has a kernel panic i can usually repair with Disk repair on CD.  I realize this sounds hopeless! And i need it repaired, but money is an issue.
I have a problem with my iMac. I have on a second partition lion installed. Everything worked great, but since I updated to 10.7.4 booting needs about 5 minutes. Already checked the partition and the access rights.
View 9 Replies View RelatedI just replaced my HDD with the new intel 160GB SSD. Everything is amazingly fast except for the booting process.
After I shut down the computer(which is extremely fast, about 3 seconds), I start my MBP, yet what's been puzzling me is that the time between pressing the button and appearing of the Apple logo last at least 15 seconds, after that, everything is just normal (fast, fast!!).
I wonder if this is normal,
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My Intel MacBook is in the shop, and I swapped out my hard drive before I sent it in and put it in a USB enclosure. I was able to boot my friend's MacBook Pro from the drive, but my G4 Mac Mini is not seeing it as an option (upon startup or otherwise). I can read files from it, but I really need to boot from the drive for some other things (cookies, passwords, and especially the ability to sync my iPod touch).
hey my friend is having a problem with his imac when he turns it on he gets a grey screen and stops there. there is also a grinding noise near the back maybe the hd or disc drive? it grinds 10 times then stops then continues for a couple minutes and then he gets a question mark on the screen.
View 1 Replies View RelatedMy 24 inch iMac is not getting pass the apple logo. It acts like it's loading, but then the little progress spinner (not sure of the name) stops spinning after 2-3 minutes. It never wants to get pass that. I'm running the latest version of Lion.
Here's the specs:
3.06GHZ
4GB
500GB
NVIDIA GeForce 8800 GS
So far I've tried using disc utility on my snow leopard disc....it doesn't load. I've tried to start in safe mode...it loads about half way and stops. Oddly enough windows xp works in bootcamp. It runs okay besides when I try to move windows. I'm guessing it's the graphics card. No idea really. Here is a video I made to show you what I mean: [URL]. I've also tried installing a new 1TB HD and it still won't boot from a disc for some reason. I tried install snow leopard through the internal superdrive and with an external superdrive. No dice.
Info:
iMac, Mac OS X (10.1.x)
My iMac24" can't booting in normal mode, but booing in safe mode only.
how to boot up in normal mode. If I restart the system, it is showing the apple logo and not going to Finder.
Info:
iMac, maverics
Just bout the 27" yesterday and For some reason, the computer is not recognizing my password.... It says I can reset my password by using my Apple ID, but again it's not recognizing my password? Tried calling Apple, but they are closed
Info:iMac, Mac OS X (10.7.4)
I was looking to add more RAM to my computer to try and speed things up a bit. I have 2 GB of RAM now. How much do you reccomend and how do I get it.
Info:
iMac, iOS 5.0.1
I do not know how my iMac has no audio device selected. I did go to settings, sound, and even went through some others' questions to select internal speakers, but that option is not there...and I still couldn't figure it out. It was working just fine yesterday.
Info:
iPod nano, Mac OS X (10.7.2)