IMac PPC :: Power Up But Does Not Boot - No Apple Chime On Start Up
Jun 19, 2012
I acquired an iMac G4 PowerPC with a 20" flat panel. System powers up but does not boot displays Apple logo screen and busy indicator. I have tried various commands safe-boot and it does not seem to work screen never changes. No Apple chime on start-up.
iMac, Mac OS X (10.3.x), System will not boot and no disks
I am having a problem getting my G5 to boot. Half the time when I turn it on I get no chime. The other half, I get the chime but the boot process does not continue. If I leave the computer on the fans begin to progressively get faster and louder after about 5 minutes. I've tried starting with various USB and Firewire components unplugged and have even gone to just a keyboard and mouse. No change. Can I get the computer to boot from an OSX CD? How do I open the tray? etc.
Information: Powermac G5 Dual 2.5GHz Mac OS X (10.4.7)
I have a Macbook Air. I thought I had lost it, so I erased it from Find My Iphone. Then of course I found it, my computer was completely erased. When I started my computer I hear the chime, but then a blank grey screen (no apple). I have tried every start up command and reset. I have tried Command R, Option, with and without connecting an Toshiba hard drive that has my computer backed up. I have tried disconnecting everything more my computer. I'm not using an external keyboard.
Again, when I try command R, option, command n, D,T, the shift button, etc. nothing really happens the screen is still grey.
My computer won't turn on. Earlier today while playin music it just paused itself. I minute later it resumed. Then tonight it just shut off instead of sleeping and now it won't start. All I can get if I'm lucky is the start up chime and a super quick flash of a white screen.
I am having a problem with my 2009 Mac Pro. It fails to boot. There is no chime and the screen wont turn on;stays black. It wont boot off of the system dvd and I even tried installing an HD that has a good version of the the OS on it. I also tried booting from the DVD with no installed drives to rule out one of the internal drives doing someothing funky. Nothing happens at all, the HD or DVD will spin for a moment and then all is dead.
I'm trying to repair a Powermac G5 (dual 2.0, the first model I believe, with a new Radeon 9800 graphics card) that won't boot and I'm having some problems that I can't seem to diagnose.
The machine will boot to the openfirmware prompt or target disc mode and will show the 'OS not found' icon if left to boot from the HD (which has been wiped). If I try to boot from either the included restore disc or a retail 10.4 DVD I've tried it will show the boot screen with the Apple logo on it but no spinning status indicator underneath. It just freezes on that screen. Once it showed the status indicator but it just continued to spin for about 30 mins, at which point I gave up. Same issue if I try to boot the hardware test (except it freezes on the hardware test loading icon rather than the Apple icon). The superdrive appears to work as it is accessible in target disc mode.
I've reset the SMU and reset the PRAM via the keyboard shortcut. The one thing that leads me to think it's a firmware fault is that when I run the 'reset-nvram' command it gives an OK, but when I then run 'reset-all' it freezes rather than rebooting. Any ideas anyone?
Ive got a G4 Power Mac 2x500MHz that Im getting a bit frustrated with.
Situation: - Power supply seems to work as power flows once I hit the power button. Fans spin, red light comes on the board, connected drives spin up, drawers open. - No chime. At first it was sporadic, but now non-existent. - No video output. Has the original AGP ATI 128 Rage Pro graphics card. - No power to USB ports? Try plugging in devices that light up in USB but nothing happens.
What Ive tried: - Ive replaced the board with a known good board and get the same results, and of course i thought this was the main problem. I did get a tiny whiff of burning smell from the previous board, though no signs of physical defect on it. No smell from the new board. - Replaced and swapped around about 6 different ram sticks. - Tried PCI graphics card (probably not compatible though) and no results, as expected. - Reset PMU of course. - Swapped processors.
My usually stable 10 year old G4 hard drive (attached to VGA monitor) is having serious problems with it's starting up process, so I am presently nursing it along (without shutting down at the end of the day) by using sleep mode. If I shut it down, chances are it fails to power up again. When I press the power on button to startup, I hear the chime and the startup process as usual, then everything stops within seconds, before the monitor screen is due to come on. The two external devices attached are the keyboard with mouse, plus a USB hub. No recent upgrades or changes. Everything is backed up on an external firewire disk. Since this trouble started a few days ago I have replaced the lithum battery and managed to successfully start it up only once (after a number of attempts) so I can nurse it along. I have tried all the usual troublshooting - when I restart in either safe, verbose, or reboot off OSX CD, single user mode, extensions off, or try to reset the PRAM fails to chime twice - in every instance it won't get past the chime. Checking the system profiler 'power on self test' indicates 'failed', failure type is 'external cache'. As I can't reboot off the OSX10 or systemworks CD I can't run Diskwarrior on the operating system or reinstall the operating system. So, I am now at the limit of my capabilities.
Info:PowerMac, Mac OS X (10.5.8), G4 Quicksilver 2002 Dual 1GHz
Basically when I start my computer, just like the title says, I hear the harddrive and fan power up, but I get no apple start up chime nor any kind of display (the screen remains black while the hard drive and fans continue to run). I've tried both a pram reset (option-command-r-p with power up) and tried booting it in safe mode (hold shift button down with power up).
I'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.
Tried to wake my 24" white iMac from sleep yesterday and discovered that it was off. Pressed the button in back but no go. Unplugged and replugged, pressed the button and it fired up fine. Surfed a bit, then put it back to sleep.
Came back about 3 hours later and it was off again. Unplugged and replugged, pressed the button and nothing. Tried it a couple more times just to check, and no go.
Any ideas? I've had this computer for a little over two years. Bought it used and bought Applecare which expired on.... Nov. 16th. Beautiful timing or what.
This morning when the power button is pushed, nothing happens at all. The button does not light up. The computer does not start.I checked the power cable. I took it out of the computer and put it back in. (I did note that the plug looks a bit darkened but it does not smell burnt.) I tried it in a different outlet. Same thing. It won't turn on.I can't recall if this iMac is a G3 or G4 and I can't find my documentation to let you know. But I don't know that it matters which G it is. It is the old special edition grey iMac and has been working for us for many years.Is this the end for this iMac? Could it be something that is simple to fix?
I recently reinstalled a clean Tiger on my old MDD G4 with the intent on giving it to a friend of mine in Oregon. Everything was smooth here in Los Angeles. Got the OS on and running sweet... 10.4.11 combo update... all's well.
I drive up to Oregon, set it up in his office using his old CRT monitor and power it on. It chimes and manages to find the Tech Tool eDrive recovery partition, but not the OS on the boot drive. Then, seconds later, screen of death/kernel panic and no boots or startup chimes thereafter.
Steps I've taken: I have reset the PMU I have removed all peripherals, including viddy, SATA adapter and all but on stick of RAM Tried every stick of RAM by itself No startup chime -- just a fan for a few seconds then a super fan kicks in... no signal to monitor at all.
Strange symptom: at times power was making it to the drives, and other times not. (determined by me putting my hand on the drive to feel its vibration or lack thereof during boot).
Do I need a new PSU? And if so where to buy?
------------------------------ Dual 867 MDD G4 SATA adapter/w 300GB Tiger boot drive and 200GB data drive (w/ Panther still installed) 120GB data drive on IDE 66 bus w/Tech Tool recovery / restore partition ------------------------------
I have a lovely secondhand 12 inch Powerbook G4. It won't boot but will just chime and go to a grey screen. I can't boot to safe mode but I can get into Open Firmware I have reset PRAM and the power manager. I don't have the install CD but I borrowed one from a friend with the same model and it wouldn't boot from that.
I have a 17" G4 1Ghz iMac, we used it until 10 months ago when I got my new 24" Intel 2GHz machine. That new 24" iMac is now in the basement craftroom as the digital hub for pictures/video/etc., while I brought the 17" G4 1Ghz iMac out from my closet for the upstairs loft general web surfing machine. It worked for 2 days and upon shut down would not re-start. I could only hear the fan and nothing else. If I held the power button for 10 seconds upon trying to start up there was a chime that sounded for a few seconds. Once the fan is making small sound, nothing else, if I hold power button for 5-20 seconds the computer will shut down (fan turn off).
Did some online checking, found article on PMU, so I did try and re-set PMU via the apple support article.Resetting the iMac (Flat Panel) Power Management Unit (PMU). Still, no re-start. It was running the latest 10.4.x update upon being put away for 10 months. Here is a picture of the bottom, the red light is on upon trying power on, my finger is on the PMU reset button. Is there any other diagnostic thing I can do? Is there a battery on this logic board that I can check/replace? I'm 100% ok at taking it apart and trying anything to fix it.
Late last night, I ran into some problems with my iBook G3. It's the 700 Mhz model, with 384MB of RAM. Nothing else special in terms of hardware config (unless an Airport card is special). OS X 10.2.8.
Basically, the computer seemed to hang and I did a hard reboot, and upon starting up I got a folder with a flashing ? .
I can't seem to find my Install disc 1 to run Disk Utility or just boot up - hopefully I will find that when I go home tonight (or maybe I left it at my parent's place), but I checked using the Hardware Test CD and it didn't detect any problems.
I am having problems opening the CD drive, so I've had to open it using a paperclip. Sometimes it doesn't appear to be using the CD.
I also have run the Micromat test CD that came with Applecare (of course this machine is almost 4 years old so that's finished...) and it detected a problem with the Read Buffer last night, but then I guess the battery ran out while it was on the last test.
This morning, I ran the Read Buffer, Write Buffer, and Volume structure tests and the first two passed very fast (unlike last night), but the Volume Structure test failed. I'm not surprised since I've been aware I have issues with this before. I tried to repair before going to work but at one point it seemed to hang so I gave it another hard reboot.
Last night, I would sometimes get the apple logo with the spinning "clock", and sometimes I would get the ? but it would never get to the login screen.
I have a mid-07 Santa Rosa MBP. When I turn it on, nothing comes on the screen (not even backlight), but I'll hear the startup chime and 2 seconds later, it reboots and does the same thing. Here is what I have tried:
1. Reset SMU 2. Reset PRAM 3. Replacing HD 4. Replacing PRAM/CMOS battery 5. Tried booting off DVD (but it reboots too fast after the chime)
My mini "starts" without chime when I press the power button on the back. The fan starts, the light in front goes on and I hear some clicks which could be the hard drive. The screen remains black (no signal) and the mini does not respond to the USB keyboard power button. It does not start when pressing it and will not power down if I press it for any length of time when it is on. Pressing the power button on the back for some time shuts it down.
I have a 1.83 Ghz MBP with 512 mb of RAM (lame I know). The other day someone was using my computer to burn a CD on iTunes when all of my programs began failing. On instinct I rebooted my computer to solve the problem. Alas, now I cant boot past the grey apple screen, and the gear is spinning away. Saddest part of the story is that I had time set aside to back up my computer the day after this happened . Anyway what is the best thing to do from here? I haven't made any moves to fix it yet really, so what is the best thing that I can do to try and get my files back?
Information: MacBook Pro Mac OS X (10.4.10) Grey Screen, Spinning Gear
My iMac G5 is old and was put away for years after the power supply broke. Well, my 6 year old decided to fix it. Sent the power supply off for repair. $59 later, we're back on... but we are ONLY back on. Nothing is booting up. Just spinning and flashing a ???. I'm on Lion with all my other computers. How can I just nuke the old G5's OS and start fresh? I have old Snow Leopard Disks. Can I start from that?
Although this isn't a very important problem, I have noticed on my early 2K8 Mac Pro the Boot POST chime will not play through external speakers. Is there a way to enable this, as it is awfully tinny from the internal speaker.
So I was just there, using my computer, doing nothing out-of-the-ordinary. I decided to open up a program (Yahoo! Instant Messenger, I think it was) and the computer went nuts. I completely froze...nothing I tried worked. So I shut the computer down and tried rebooting it. It chimed and went to the white start-up screen with the apple...I let it sit for about ten minutes to let it restart. Still the white screen. I shut it down and tried it again. Same thing.
Is my computer dead? What might I be able to do to fix it? How much might it cost?
when i start my imac it shows the apple logo, then the circle starts spinning and after a couple minutes it just shuts off. BTW i have windows on it as well so when i hold option it lets me open windows but not os