Power Mac G5 :: Dual 1.8 Not Booting When Pressing The Power Button

Dec 13, 2007

I had a weird issue this morning. I started computer and it did not make the chime sound, it didn't do anything at all. I disconnected it from the extension cord as well as all the peripherals attached to it and nothing. I tried a different start up disk and again there wasn't a sound. Then i unplugged it and reset the SMU on the mother board and air sprayed the computer to remove all dust. Then plugged it back and it came back on.

Information:
Power Mac G5 Dual 1.8
Mac OS X (10.4.11)

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IMac :: Turn On The Power Without Pressing The Power From Button?

Mar 21, 2009

i just got my new imac 2 days ago. I was wondering is there another to turn on the power without pressing the power from button? (cuz i remember u can power on from the keyboard b4)

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MacBook Pro :: Display Would Not Turn On After Pressing Power Button

Jun 6, 2014

1.turn into black screen after running for about 15 mins, but the system is still running because the keyboard is still functional. After reboot, i record the log as below, it shows that it is a GPU Panic.  

2. display would not turn on after pressing the power button but can still hear the apple start up chime and the system keep running with the screen off. 

3. after erased the hard drive and re-installed Mavericks. Under a new installed system, it can run normally for about 1 day, after that especially after a shut down or restart, the problems above came back.  

I am currently working in Thailand but I have no plan to go back to the US in a short period of time. I brought the laptop to the local apple service, they said it is certainly the logic board or GPU failure and the parts need to be replaced. The cost of the replacement is around half of the price that I paid for this laptop.

Anonymous UUID:       398E619F-8811-6838-BEFC-13DF20E24CAE Tue May 27 10:02:04 2014panic(cpu 4 caller 0xffffff7fa970bf7c): "GPU Panic: [<None>] 3 0 a0 d9 9 8 0 3 : NVRM[0/1:0:0]: Read Error 0x00000100: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0x102c00000 0xffffff8138e01000 0x0e7150a2, D0, P3/4

[Code]....

Info:
MacBook Pro with Retina display, OS X Mavericks (10.9.3)

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OS X :: Macbook Pro Freezes With Msg Restart Computer By Pressing Power Button

Apr 8, 2009

I have a macbook pro, bought it May last year(2008). I don't know much about computers, but I loved the transition between pc and mac, had no trouble with it, loved to work with it, until now. I had noticed it became slower like 3 weeks ago, and a week ago, it started to freeze up on me followed by a message that said please restart your computer by pressing the power button and the screen becomes dark. When I try to restart it again, it takes a while because it shuts down again and again, until the 10th time it works. The store told me to clean intall, which I did yesterday, it seemed to have worked, it was faster for sure, but today it happened again, 3 times! Has this happened to anyone? Does somebody know what to do?

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MacBook Pro :: Screen Went Black And Keeps Beeping When Pressing Power Button

Aug 24, 2014

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?

Info:
macbook pro, Mac OS X (10.6.2)

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IMac :: How Do I Get To Wake Back Up Without Pressing The Power Button In The Back

Oct 30, 2009

i have my power saver set up so that the display goes to sleep after 30 minutes do i get it to wake back up without pressing the power button in the back?

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PowerPC :: G4 Not Booting - Hold Power Button And Restart Computer

Jun 3, 2009

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.

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PowerPC :: IBook G4 - When I Press Power Button, Power Fan Comes On, But No Picture Shows

Feb 10, 2008

I have a iBook G4 laptop and there seems to be something very wrong with it. It started a few days ago just randomly. I was reading something on the internet and the screen went black on me, but the power was still on (I clicked CAPS LOCK to see if there was power). I then proceeded to push the power button and the power went off. When I pressed the power button again to turn it on, it made that internal noise it always makes and then the fan came on, and wouldn't turn off. There was no picture on the screen at all. Completely dead. But there was power, because when I clicked on the CAPS LOCK, the light came on). I tried pressing on the power button for at least 15 seconds and even went as long as a minute, and the power didn't go off.

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MacBook Pro :: Not Booting Properly - "need To Restart Computer - Hold Down Power Button"

May 23, 2010

My 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.

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Power Mac G5 :: Won't Boot Up Blinking Power Button After Adding Ram

Dec 6, 2007

I added 2 sticks of 512 to my power mac g5 1.6. I had ahard time getting the computer to see the new ram, but finally was able to kinda get it working after zapping the pram. However my computer only saw these 2 sticks as 256, odd. So i attempted to troubleshoot the problem. I tried just installing the new ram, but the computer wouldnt boot. I tried a few different combos with the other 4 sticks i had, but nothing. I put the old memory back in, and still nothing. The power led looks to blink once every five seconds or so. I tried pressing the pmu reset button, but still the same out come. I also tried taking out the battery, nothing.

Information:
1.6 g5 single proc
Mac OS X (10.5.1)

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PowerPC :: Making Power Button Shut Power Mac Off?

Oct 7, 2006

I'm using a B&W Power Mac G3 with 512MB RAM and OS X Tiger for a SMB file server (with 5 users) and a USB printer server. Everything is working good, but I have a problem.

It doesn't have a monitor or keyboard/mouse attached normally (I can configure it via VNC). The problem is that I would like to be able to turn the machine off when it's not needed (like at night sometimes, days when I won't be home, etc.). I would like to just hit the power button and have it turn off, however it puts it to sleep instead.

Normally, sleep would be fine, except on the B&W, the fans still run, just the HDs shut off, so it's still noisy as heck.

Is there a way to make the power button shut it off? If not, any other easy methods of shutting it off you can think of? Via VNC won't cut it, as my dad needs to be able to turn it on (not a problem) or off as well.

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Power Mac :: Wake From Sleep Only With Power Button?

Mar 27, 2012

I still use this old PowerMac G4 (hopefully Apple builds a new MacPro soon!) and when not using it, it is  in sleep mode.Unfortunately my cats like to touch the keyboard, thus waking up my Mac.Is it possible to wake the mac only by pressing the power button?

Info:
Dual 1 GHz PowerPC G4, Mac OS X (10.5.8),

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MacBook Pro :: Unable To Switch ON At All, Pressing The Power Doesn't Do Anything?

Apr 18, 2012

I cannot get my macbook pro to switch on.when it is not plugged as I press the power button nothing happens, when the computer is power plugged, it gives me the white blackground with the apple centered and the loading button below but it keeps loading forever left it as for 4 hours and still nothing. I have try to reset the SMC but didn't change much, now instead of the apple logo I get a circle crossed My macbook is 1 year and 4months?

Info:
MacBook Pro

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Power Mac G5 :: Compatible Dual Layer On PPC G5 Dual 1.87ghz

Nov 11, 2007

Does anyone know of any compadible Dual Layer DVD that work with a PPC G5 Dual 1.87ghz?I tried memorex DVD+R DL and it kept on spiting out the disk

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PowerPC :: Power-mac Dual Dual Core 2.5 G5/removing Cpu?

Nov 27, 2010

I am looking for a tear down guide for my 4 core power mac. I need some instructions on how to remove the CPU's since I bought this for $100 and found the part for $250.

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Power Mac :: Can G5 1.8 Dual Mother Board Replace By 2.5 Dual

Mar 30, 2012

I've got a g5 2.5 dual mother replace to a 1.8 dual g5 tower, nothing happen except all the fans, did anyone know is it work, or my 2.5 mother board also dead?

Info:
PowerMac, Mac OS X (10.4.11)

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OS X :: Power Mac Dual G5 Dual Video Cards

Nov 2, 2009

I have a Powermac Dual G5 @2.0ghz, with 8gbs of ram, and 2 1tb drives running the latest version of 10.5. The problem I have is that I have 4 LCD monitors that I was using with my PC. I swapped that out with my mac, and while I am no novice, I didnt take into account that I cant just put any AGP and PCI video card into the system. What I need to know is if I can use two PCI video cards both with Dual Monitor outputs, and if so, which cards should I buy, and where? I found some video cards on ebay that are PCI, and it is quartz extreme compatible, but I am unable to use it with the AGP card already installed. The person selling the cards was unable to answer whether or not two of those cards could be used together. I only have about 75 per card to spend. Please help, I cant go on using this awesome machine with only one 19inch LCD. and I cant afford to buy new monitors

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Mac Mini :: Restart Message - Hold Power Button / Press Restart Button

Apr 29, 2009

I have just shipped my Mac Mini to its new home and I've had reports that the panic error is appearing on boot up: "You need to restart your computer. Hold down the power button for several seconds or press the Restart Button." This screen appears on the blue window just after the grey apple screen has disappeared and does not get as far as the desktop at the same point each time. We have tried to reinstall mac OS from the original install disk but holding the "C" Key or the "Option" Key down on restart doesn't boot from disc. Is there a way you can view the Kernel Panic log before you boot into Mac OS so we can try and pin point the source of this problem. I'm wondering if this could have been the result of the shipping that has caused some hardware to come loose.

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Power Mac G5 :: Booting Up And Kernel Panics

Oct 10, 2007

Last week, after completely normal use, the computer booted up to a screen with the finder icon / flashing question mark. After a few more atempts to power up i started getting just the grey apple screen with spinning wheel and loud fans. I was advised by a friend to boot from the install DVD by holding alt when powering up. When i try this, after selecting the DVD from the boot up options, I get kernel panic and the message " panic: We are hanging here...". Then nothing.

Information:
G5 Dual 2.0
Mac OS X (10.4.5)

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Power Mac G5 :: Booting Problem With PowerMac G5

Nov 15, 2007

I have trouble with my PowerMac G5. It doesn't boot any more. Booting from CD is also not possible. Sometime it boots regularly from hard disc, but the system crashes down after a few seconds after the login.


Information:
PowerMac G5, MacBook Pro
Mac OS X (10.4.9)

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Power Mac G5 :: Not Booting With Air Deflector In Place?

Nov 26, 2007

You read it right. If the air deflector is in place it won't boot. No gray screen. The power light comes on but it never gets to the chime. I hear a click and possibly the disk start to spin and then nothing. I reset the PMU and the PRAM but it didn't help. If I open the panel and take out the air deflector it boots fine. Once it starts I can put the deflector back and it runs normally.

Information:
G5
Mac OS X (10.5.1)

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Power Mac :: G4 1.25 Request To Restart When Booting

May 9, 2012

the computer when it get the grey screen show a meesage the "push the restart button" to reboot want to shut down and restart  the computer

Info:
iPhoto '11, Mac OS X (10.6.7)

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Hardware :: How To Use Power Button

Nov 27, 2009

I just bought the 1.5 TB WD My Book. I was wondering how to use the power button. Also what is the icon for WD SmartWare for?

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Power Mac G5 :: System Not Booting - Only Gets To Apple Screen

Nov 25, 2007

I have a 2005 G5 PowerMac. It has been locking up lately. Tonight it will not boot. Everytime I turn it on I get to the apple screen and the circle keeps going round and round. I then followed the directions to reset the PMU and I disconnected the second hard drive. Now it will still not boot and gets to the apple screen, circles a couple of times then locks up. I have disconnected everything except the monitor, keyboard and mouse and still have the same problem. The largest issue is the CD drive will not open so I cannot attempt to reload the OS or anything else that requires the CD drive. I do not know if there is a manual way to open the drive. I have searched the help forums and only see the keyboard as an option. I have read many posts that the 9800 video card is a problem - we have an ATI 800 XT and I have not read anything hear about that card being an issue.

Information:
PowerMac G5 1.8g Dual-core
Mac OS X (10.5.1)

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MacBook Pro :: Power Button Not Working

Mar 31, 2008

My Macbook Was On And Working And I Tried To Hit The Power Button To Turn The Macbook Off And It Would Not Work....so I Shut It Down Using Computer Shut Down Under The Apple ....now It Will Not Turn Back On......it Has To Be The Power Button Itself....is There Any Where I Could Buy A Replacement Power Button? And Is There Any Other Way To Get It To Turn On Without Using The Power Button?

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Mac Pro :: Power Button Flashes Non-stop

Mar 15, 2012

After leaving machine on all night as I usuaaly do in the middle of a project I came in this morning to find power button blinking no -stop. No images on displays.Have reseated RAM (original 2G from Apple and subsequent modules (4x2) from OWC) twice and no change. No peripherals connected and no change.

Info:Mac OS X (10.6.8), Mac Pro 3.0/8-Core, 18G RAM, 2-1Tb

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Intel Mac :: Power Button Won't Work On It

Apr 14, 2012

I turn off Imac, using apple menu. Sometimes the power button will work to turn it on, other times it won't. Been to 2 authorized dealers, they can't find problem. Sometimes jiggling or shaking computer will allow me to start using power button. Sometimes I open up case, plug and unplug everything, and then power button will work. Never know when it will work or not. Power button has had continuity check. It checks fine. Power plug is fine, outlet is fine.

Info:
iMac, Mac OS X (10.6.5), Partition hard drive

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Mac Mini :: Will Not Shutdown Only From The Power Button

May 28, 2012

My mac mini will not shutdown only from the power button?

Info:
Mac mini (Mid 2011), Mac OS X (10.7.4)

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MacBook :: Turn On It Without Using The Power Button?

Jun 11, 2012

I have a white 2008 model MacBook. Due to some unfortunate tampering with the circuits under the right command key on the built in keyboard, a lot of the keys and the power button are now effectively dead. I'be ordered a replacement top case, but was wondering if I could, in the meanwhile, somehow turn the laptop on. I'd prefer to do this without opening it up, though I could if that's the only way.  

I read in another thread, can't find the link now, that disconnecting the battery, connecting mains, then connecting the battery would turn it on, but that doesn't seem to work for me.

Info:
MacBook (13-inch Early 2008), Mac OS X (10.7.4)

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MacBook :: Power Button Always Pressed?

Jun 29, 2014

my power button is constantly pressed. While I was using my computer, the screen got black automatically after a few seconds.After I pressed ESC in order to get back to my desktop, after another few seconds, the window asking if I want to shut down / log out / reboot appeared...When I'm trying to boot my Macbook, after a few seconds, it automatically shut down, without warning, as if I was pressing power button for a few seconds to force the shutdown.I can boot if I remain a keyboard's touch pressed during all the booting process, like Maj, or Alt, but as you could imagine, it's not really easy to use a computer with a keyboard's touch constantly pressed.... 

By the way, I won't go to the Genius bar for a few reasons, first, this Mac is 5 years old, so I'd prefer buy a new laptop instead of paying a few hundred bucks in order to change pieces of this old Macbook, secondly, I don't have an Apple Store near my location.

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