MacBook :: Power Light Not Turned On - Ominous?
Sep 10, 2009
My Macbook, I have just become aware that the light for power on isn't on, nor does it pulsate on standby. Everything else seems to be working normally, so I can live with this. But could this be a symptom of precursor of a more serious problem elsewhere?
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Feb 7, 2012
why in my macbook pro the stop light is always turned on and no flashing?
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Aug 25, 2009
When trying to enable my PPPOE connection the LAN light on the modem is getting turned off.
and not getting an IP address under configure IPV4.
i am not able create a PPPOE connection on the computer.
Modem Brand is Zyxel p660R D1.
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Aug 24, 2009
i tried pressing F6 but it doesnt work,
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Jan 8, 2011
Seagate Free Agent drives, I couldn't find a post among the hundreds readily and I need sleep. Last night, my drive stayed on, lights and all, all freaking night long. I turned off my Mac, but nothing changed. The light stayed on. It was like living in an apartment above Time Square on New Year's Eve. I finally unplugged the damn thing. I was hoping it would fix itself overnight, but it didn't. It seems to be doing a good job of backing up with time machine, but the *(^%$ light won't turn off.
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Sep 12, 2009
The other day my friend gave me his old macbook saying that it was broken and would only turn on sometimes. I have had this computer for 2 days and it has never turned on yet. He kept the hard drive so the machine does not currently have one. He also could not find the Mac OSX install CD, so I don't have one either. The battery is fully charged (the lights on the bottom of it are all on) and the light on the adapter is green. When I push the power button, nothing happens. No lights, no noise, nothing. I called apple and they told me that without a hard drive, the only way to test it would be to boot off of the Mac OSX disk by holding "c" when the computer is booting. The problem is, 1, I don't have a disk, and 2, how am I supposed to hold the c key while the computer is booting if it will not turn on? I have tried everything it says on the apple website and have tried it with different ram, with and a usb hard drive plugged in.
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Dec 8, 2010
My Macbook Pro randomly shut off (I don't think it was low on battery, but I can't be 100% sure.) Now when I plug in the charger, the light on the charger is green for about 6 seconds, then goes to red and stays red. I cannot turn on the computer, and there is no sign that it is even charging.
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Dec 6, 2010
Power charger light keeps going off, I have to unplug and plug it back in to make it come back. Charger is still working. This started happening this evening. Anyone else having this problem? Should I contact Apple tomorrow or wait and observe a little longer?
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Dec 9, 2010
What does a red light on the power adaptor mean?
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Apr 11, 2012
My MacBook won't boot up without the system disk, has Lion with 4 Gb Ram all updates, has a DVD stuck n the drive?
Info:
MacBook, iOS 5.0.1, 4 GB RAM
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Apr 1, 2012
Wondering if the yellow, charging light, sometimes coming on and going off is an indication of my battery going dead. Mine is a UMBP and the battery hasn't been change. Don't use it too much, though.
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Jul 2, 2012
I have an old macbookpro which doesn't have a good battery. last night it shut off because I didn't have the power chord attached. now I can't power it up. the light on the power chord flashes (slowly) between red and green.Â
Info:
MacBook Pro, Mac OS X (10.4.7)
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Dec 3, 2007
Sometimes when I try to turn on my power mac G5 don't work. I have already changed the inside battery and also trying to reset the pmu. The only thing that works always is to disconnect the power cord from the back some minutes.
Information:
G5
Mac OS X (10.5.1)
PowerPC G5 (2.2)
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Sep 28, 2009
I've been asked to take a look at a friends white macbook that won't power on. I've tried resetting the smc etc., with no joy. The battery charge indicator shows 1 fully lit green light and the magsafe connector also is green. Pressing the power button doesn't do anything, no lights, beeps etc. I've tried another power adapter and the magsafe light remains green when connected but the battery still shows 1 green led. Considering the macbook thinks its charged but the battery isn't, is this a dead logic board? Or something else? This macbook is well out of warranty.
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Nov 3, 2009
I recently spilled close to a tablespoon of milk onto the keyboard. Most of this landed on the keys themselves. I thought nothing of this and continued working for 4 hours. I left for 6 hours and came home to a non working Powerbook G4. The green powerlight does come on. I let sit for one day. Still nothing.
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Jan 23, 2010
I went upstairs last night to find my Macbook Pro's charger had no light lit up on it. I tried everything including changing wall sockets, resetting the SMC, with and without the battery - nothing! I then noticed I could feel the electrical current on my Macbook Pro and then it started, a loud ticking coming from the brick. It's dead. It's just under 18 months old. Apple has said that I have no Applecare, no tech support and no warranty so buy a new one. I thought electronics HAD to have a 2-year warranty on them in Europe? Can I take that to apple? It's �60 for a new one and things like this shouldn't fail after just 17 months.
It's the old 85W type. The guy at Apple told me they only do the "new" 60W types. Can I use these with a June '08 Macbook Pro? I've had no end of problems with my MBP. I may call an end to Apple - I'm not happy paying over the odds for this Macbook less than 18 months ago for it to have had so many problems already.
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Apr 28, 2012
My Macbook has no power at all. None from the cord, none from the battery which was fully charged. I noticed only a couple of days ago the little green light on the connection flickered a couple of times. I took the extension off the lead and used the plug on the power box. I also took the battery out and put it back in.
Info:
MacBook, Mac OS X (10.6.8)
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Jun 4, 2014
My MacBook Air's (2008) screen went blank. Now the power light flashes and it beeps continuously. I have tried rebooting, but no change.
Info:
apple, Mac OS X (10.6.5), iPhone macbook air iPad AppleTV (both)
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Jun 7, 2009
My power went out while I was using my iMac today. I was wondering if this could have caused any damage to the computer and if I have to run any utilities etc to investigate?
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Apr 25, 2012
I went to turn on my G5 tower and my monitor say no image. Everything is hooked up but no picture
Info:
Mac Pro
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Sep 25, 2009
I have a 2008 Macbook and when the power is plugged in, the light is green, however my battery will not charge, and it even says at the top "battery is not charging" If I remove the power cord from the computer it will still run off the remaining % of the battery, but If I reconnect the cord it lights up green and I never see the amber charging color. I traded out my battery as well as a different cord and still the same results. My battery will charge up on a friends macbook, but not on my own. I want to take it to the apple store but I'm at school and there is no store near me.
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Jun 12, 2012
MagSafe power cord for MacBook lights up green for one second and then lights up orange for one second, then goes dark. Battery shows MacBook has no power anymore, so will not boot. I cleaned the contacts and none are pushed down. What are my next steps?
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Jun 27, 2012
power plug light is not strong and battery says not charging
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Feb 5, 2012
Today I turned on my G5 to recover some files off an old iMac hard drive (can't very well read HFS+ using Windows), and my G5 refused to boot. Your press the power button, the power light flashes normally when you press on the button, but it powers on but the power light never comes on and there isn't a "bong" sound. The fans come on normally, but after a while the fans start picking up speed until they are at full speed.
I tried swapping ram, no change. Pulling ram, no flashing lights, pulling air deflector shield, full speed fans and red light (tells me something is working at least), swapping the video card, pulling the video card and still nothing. The 17" Studio Display power button works to turn on the system, but it has no light either saying the computer is on.
Based on the full speed fans after a while, I'm willing to say I have a failed processor, but that is just a wild guess as I don't normally work with Macs. The system is a Dual 2 GHz Power Mac G5 with 2 gigs ram, 80 GB hard drive, Plextor PX-712A DVD burner (I got this with a DVD-ROM), stock Radeon 9600 Pro and an Airport Extreme card. It runs Mac OS 10.5.8 and has worked great up until today.
Info:
PowerMac, Mac OS X (10.5.8), Late 2004 2 GHz Dual Processor
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Nov 7, 2007
I was working with a Power Mac G5 when this strange thing happened. I had pulled the CD drive from the machine to test out a problem with a new Mac Book computer(door wouldn't open on eject command). Discovered that that we had a wiring problem (I was using the bottom connector not the top). So I go and put the drive back into the Power Mac, turn it on & the only thing on my screen is a small square icon with a picture of the North & South American hemispheres on it, flashing. Can anyone enlighten me as to what just happen & what I can do to fix it?
Information:
Mac G5 Dual 2.5 GHz
Mac OS X (10.4.6)
2.5 GB Ram
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Apr 4, 2012
I Have a power mac G5 2.7 (early 2005?) liquid cooled. It has a ticking sound (like a clock), low level but still audible, can it be turned off? What is it?
Info:
PowerMac, Mac OS X (10.4.11), 2.7 GHz early '05
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Jun 28, 2012
The battery don't charge and the power adapter light stays green, I didn't noticed it before the battery was empty. I have had problems with the adapter before and just reconnected the power a couple of times and it starts to charge again and the light turns orange but if I touch the adapter now the computer shuts down.
Info:
MacBook Pro, Mac OS X (10.6.8)
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Nov 10, 2008
I've been wondering about this for some time now but never took the time to ask. Why is it when the machine powers down, there is a very noticeable click from the power supply? This happens when it shuts down or goes to sleep mode. Before the Mac Pro, I've always built my own system and none of the OEM PSUs ever did this.
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Apr 10, 2012
My iMac desktop (purchased new in 2009) suddenly turned off this morning and won't respond to the power button even after the attempted SMH (right acronym?) reset.
Info:
iMac
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Jul 1, 2009
my iMac won't turn on. The day before yesterday happened the same thing, but after a few tries with the power button, it eventually turned on - and all ok yesterday. Both the day before yesterday and today, the general power was turned off for some minutes, but the iMac wasn't running. So now, I've tried to reset the SMC, removing everything attached, but nothing.
At least I can clearly hear the tic tic tic button, probably of the timer, because I set up a schedule to let it turn on at a certain hour. What can I do? It's a white iMac, never had a problem.
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