MacBook :: System Will Not Power Up / Turned On
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 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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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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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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Mar 27, 2009
i had the macbook Core 2 Duo for About 8 months and it was working great.yesterday i left a file download in firefox for 5 hours then went back to check on it , it was working FINE, Then i got Back after 2 minutes and the screen is suddenly white and not showing anything!i shut down the laptop and restarted , there was a chime and just white screen...i connected the laptop to an external monitor AND EVERYTHING IS WORKING on the external screen but the laptop screen is white!!!i tried resetting the PRAM and i tried resetting the SMC twice but nothing Changed
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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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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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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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Aug 19, 2006
My macbook just turns off for no reason. I am just browsing the internet and then it turns off. This usually happens a little after I wake it up but sometimes it happens at random (like 5 mins ago). Sometimes when it turns off I try to turn it back on but it just turns off after a couple of minutes again. I thought it was the ram but I ran Remember and all tests passes.
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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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Nov 26, 2006
I retrofitted a Toshiba dvd/cdrw 2512 in my indigo ibook, following instructions found online. Opens fine with f12 key, and drilled hole for paperclip eject if need. Plays dvds and burns cds great (patchburn installed to burn from itunes too). But, the drive also opens when the ibook is turned on and when it comes out of sleep. Is this a glitch that can be fixed. Not a big deal but would like to have it not open if possible.
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Feb 1, 2009
I purchased a new optical drive from a reputable mac seller in my area and installed it due to the old one not reading disks anymore. I was very careful and followed the instructions according to an article I found on [URL]I found on xlr8your macHowever, now when I start the computer up, I get the question mark folder. I've done a little research but thought I' check the Macrumors forum before I spent all day on this. The store where I bought the new optical drive from doesn't open for another few hours so, here I am.
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Mar 23, 2010
I am considering getting a used MB Pro for editing home movies. OK, its not Final Cut Pro stuff, but this will be the most demanding thing I use the computer for. In the past I have used iMovieHD and iDVD to make movies on my 12" PB G4 with a 1.25 GHz processor and 1.5 GB of RAM and ATI Mobility Radeon 9700 with 64 MB or 128 MB (not sure which). This has worked fine, but I can tell its a little slow. I certainly can't plan on doing anything else at the same time.
But, now the previous generation MB Pros are going for $1000 (used or refurb) on eBay and I am considering getting something like a 2.4 GHz / 2 - 4 GB with a 256 or 512 MB Nvidia 8600 graphics card.
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Jun 21, 2012
My mac goes off as soon as i disconnect from power. Is the battery dead or some fault in power?
Info:
MacBook Pro, W80271YSAGW
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Mar 18, 2009
office is upstairs so i bought a Macbook pro which i can use downstairs while watching tv or in the bedroom.... I bought my girlfriend a macbook for the same purpose.. I plan on buying a dell ultrasharp 24" monitor and keep it in the office that way either one of us can go and plug our laptops in and use it at the desk. I want to keep a power supply up there for both of us to use, can i buy a spare 85w power supply and will it be safe for her macbook?
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Aug 17, 2009
I got a new macbook black that is not covered under warranty, the magsafe fried on it and it used to boot up but not charge the battery or show any signs of power from the magsafe so then I bought a new magsafe that connects to the logic board and replaced it and when I plugged the power adapter in it tried to turn on right away and then the fan spinned and the sleep light light up then it shut off right away and I didn't smell nothing from the macbook or logic board. The battery now charges and the light on the magsafe adapter lights up so I tried to turn it back on and it doesn't the same thing turns on and then right off just the fan spins and then the hdds spin lasts for like a sec or two. I tried to turn it on with the battery out and with just the battery in nothing swapped the RAM same thing went from two 1 gig sticks to 2 256mb sticks and then tried another two 2gig sticks same thing then I tried a different hdd and have the same thing happen? What I need to do to get this working and yes I tried a google search and every1 ended up taking it to apple and I cannot do that.
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Feb 9, 2010
I've been experiencing the following problem with my late 2007 MacBook Pro: I can't use it on batteries. As soon as I disconnect power supply, it works for 10-15 minutes and switches off. Not sleeps, but suddenly turns off completely. The system battery indicator drops by about 10% (showing 85-90% battery charged), whereas 4 out of 5 LEDs are lit on the battery itself. After such a sunned switch-off, I'm not able to start again the laptop - it doesn't react on Power On button - like the battery wasn't inserted at all. Right after I plug on power supply back again, everything gets back to normal and I can use it normally, but still only if it's connected to the electricity.
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Jun 25, 2014
Recently purchased a macbook air and facing frequent internet disconnection issue when the macbook goes to the power save. Once after the interrupt i found the internet connection was no longer alive.
Product description:
Device: Macbook air
Model No: A1465
OS: OSX version: 10.9.2
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May 8, 2010
Since I just took the plunge and purchased my first MBP, I certainly want to protect it. I've been looking at the Speck/Incase hard shells, but I hear they block access for the power adapter.
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Jul 5, 2012
I've kept a PPC with system 7.5.1 around for reference to prior financial records.Now chose to wipe it clean, along with 3 external HDs.
Erased internal disc, then erased three external discs.
Maybe that is enough, but I recall that if financial and personal data is on a drive, the only way to insure it is not accessible is to overwrite the drive.
How can that be done with 7.5.1???
What I did do is use Silver Lining to also erase the HD and THEN set a password to both start and open the drives. Will that suffice? or what??
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Nov 13, 2007
I have a PowerMac G5 dual 2.3 ghz w/ 1gb ram and a G4 Quicksilver with 2 internal ATA drives
Internal drive specs : 2 IBM 180GB IDE/ATA-5 Deskstar 8MB 180GXP 7200 rpm
There is also an ATA card that was installed to be able to run these drives in the G4 - don't have specs available right now. Is it physically possible to transfer these drives to the G5? Will I have to transfer the card also? Is it likely to cause any problems -compatibility , speed, etc? The drives are currently full of media - how risky is it to move them from one system to another?
Information:
PB G4, G4, G5
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Dec 18, 2007
Over the last few months I've noticed a trend with my dual 2GHz G5 at home, it often locks up and the fans go full-throttle. It sometimes happens when I'm using it and often when I leave it idling for a while. I've noticed that the CPU A and CPU B temperatures start around 120 degrees F when the machine is first powered up and steadily climbs to around 150. Is that normal? The dual 1.8GHz G5 I have at the office doesn't run hotter than 110 degrees. The fans haven't failed. Is there a coolant link? Is there anything I can do to diagnose this, or do I simply need to call AppleCare?
Information:
Mac OS X (10.5)
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Oct 16, 2008
I have a G5 Dual 2.5 and the power light on the front (white) is lit but nothing happens when I press the power button. I was trying to reset the PRAM manually by pulling the battery and inplugging the unit because my startup shortcut keys were not working. I had seen it recommended to reset it by pulling the battery and reinstalling in other threads. I put the battery back after about 15 sec and plugged in back in. Now it wont start up.
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Feb 16, 2009
Will a 600W power supply from a June 2004 dual 1.8 G5 be compatible with a dual 2.3 early 2005 system (450W)? Are the connectors any different? Will a bigger power supply overload the system? I know that the 600W June 04 power supply can be used with a dual 2.7 early 05 machine (600W) despite a rubber grommet that the 04 doesn't have.
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May 31, 2010
I am brand new mac user, never used it before, I just got an older iMac and want to learn about it. I need help to know what's the newest system that can be installed on it.
its 500 MHZ power pc processor
30 GB Hard drive
512 Ram
I want the newest possible system so I can start on a newer system espicially since i am still a starter. Another question I have, do i have to purchase a cd to install a system or is it possible to download it from the internet?
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Mar 20, 2012
Using OS 10.4.11 on a PowerPc G5, what is the most efficient way to backup?
Info:
PowerMac, Mac OS X (10.4.11)
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Jun 11, 2012
ppc desktop using OS 10.5.8. purchased ilife '08 to get latest imovie, iphoto etc. package. system requirements on disk says 10.4.9 and up is required. when imovie is double clicked to open, dialog says imovie will not work on this system. iphoto, i dvd etc work ok. only imovie is a problem...
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