PowerPC :: G5 Not Turning On Only Red Light Shown?
Nov 30, 2010
Up until recently my PowerMac G5 has performed as it should for a computer its age. About two nights ago it shut itself down and I haven't been able to turn it on since. Power does cycle through the unit because all the fans will either cycle once or twice, or at the very least they will twitch. And now there's a tiny red LED on the motherboard and behind the power button that lights up whenever I try to power on the computer. I'm at a loss for where I need to go from here, though I feel rather certain that my computer has simply passed on. It's an original 2004 1.6 ghz single processor PowerMac G5, serial number unknown, since I can't turn it on.
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Dec 4, 2014
my keyboard light is not turning on. what should i my macbook air is 2014 version.
Info:
MacBook Air, OS X Yosemite (10.10.1)
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May 11, 2009
So for the past few weeks, the little green light has gone off at random times. It creeps me out, feels like I'm being watched. Anyway, I put a little piece of post it to cover up the camera so I won't be so paranoid. I already did an SMC reset and the problem still persists.
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Aug 21, 2010
When my mother plugs her 13" MBP into the wall, the charger light is green and very dim. The charger light will not turn red. I tried my charger and 2 other ones. same problem. Pressing the battery indicator button in the left side will not light up at all. We left the computer plugged in for a few hours, and it still doesn't power on. I reseated the battery connector, reset the SMC, reset the PRAM/NVRAM, and the computer still won't turn on. No lights (except the magsafe that is faintly green). I'm sure it the logic board that failed in her 4 month old $1200 computer, but if you have any suggestions, let me know. We are going to the Apple Store soon. If it is indeed the logic board, then people that says Dell computers are crap will have to think again. My mom's work computer (Latitude E6400) is a year old.
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Sep 11, 2014
my macbook pro not turning on but the light in the right corner is on and the battery is charging.what can I do ?
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Dec 2, 2014
The light doesn't on my computer charger is not turning on and not charging.
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Aug 2, 2010
It's been on for about 24 hours because I'm downloading a large file. (It's been completely on, no sleep.) I was using it a couple of minutes ago when I noticed the battery was low. I plugged it in without turning it off and went downstairs. When I came back, it appeared to be shut down. I tried pressing buttons on he keyboard/moving the mouse to see if it just went to sleep but there's no response. Even pressing the power button doesn't do anything.
when I close the lid, the sleep indicator is on. (IIRC, it's supposed to flash when it's sleeping but right now, the white light indicator is solid and only goes off when I open the lid.)
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Sep 8, 2008
I have an ibook g4 that will not boot, I figure its a bum hard drive since the hd doesn't show up in diagnostics. I am wondering if its possible to install os x on an external firewire hd through the ibook and run the ibook off that? The only reason I need the ibook is for portability with my dj program torq, I have 2 imacs, a 20" and a 24" but they aren't very portable.
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Dec 12, 2005
My homeroom teacher's 14 inch G3 iBook's display has started displaying everything grainy. There are little dots everywhere on the display, and it is annoying. The head IT person at school is stumped. I am not sure of the exact version of OS X, if it might be a software issue. Could it be a sign of logic board failure?
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May 19, 2008
I have an old powermac G4 dual 1.42 the other day I decided to power it up to update it and it would not turn on. I push the power button it lights briefly and goes out. The light stays on if I hold the button down. The fan does not come on nor any noise from inside the case, etc. I have reset the pram, that little button, and I have replaced the battery, I have searched for the problem but nothing seems to fit my exact case. It's not my main computer and I am no where near an apple store and I'd rather fix the problem myself instead of paying an arm and leg for apple to repair it.
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Feb 7, 2006
I went to turn on my Power Mac G4 this morning and only the fan would come on. No light. No computer start up sounds. No screen. Just the fan. I tried a new battery and that's not it.
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Jan 2, 2007
I have a 12" 1.33Ghz iBook G4 that does not respond when I try to turn it on. Every now and then I can hear the hard drives spin up but after that nothing happens. I've tried to make sure the problem wasn't being caused by my AC adaptor and battery and they seem to be fine. I even tried to remove my third party Crucial 1GB stick of RAM and it still won't work. Is there anything else I can try before I head over to the nearest Apple store?
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Mar 21, 2009
I have a iBook G4 with the following spec. 14� Screen 933 MHz Processor / 384 MB RAM / 40 GB HD, OS 10 panther Untill now it was working perfectly, last week in was on and hanged up and was heated for hours, Now when i was trying to switch it on it was not booting up and not recogninsing the hard disc, I tried to reboot i failed, than i tried to reload OS10 panther with the original disc no 1 it went on till the end and before finishing it showed error message. I tried to check and repair Hard disc and it was OK I think the problem is with memory ( which is inbuilt in the board) If i put additional memory on the slot and try to relad the OS will it work, or there is some other problem.
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Sep 22, 2010
I wanted to fix this hardware problem with my iMac G4 20". Basically the LCD screen has a redish tint in the corners, only really visible when displaying something bright/white. Also, when looking at the screen from an angle when displaying a black image, it looks completely red. What's the fault here? Is it the panel itself or the backlight?
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Mar 6, 2007
My iBook used to come up with an alert that it was using reserve power, and then automatically go to sleep, so I could wake it as soon as I plugged it in. Now, there is no warning, if it gets to 0% it turns off, NOT sleeps but turns completely off without shutting down. This means any unsaved work is lost etc, its not at all good. Can anyone tell me how to fix this? (I have Tiger, iBook 1.44Ghz, 1.25 RAM)
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Nov 17, 2010
I have a first gen iMac 24 Intel with a dead logic board. However everything works in it. The screen, power supply, isite, speakers. appear to work fine. I got a MacBook Pro to replace it and I wanted to know if there is a way to turn the old iMac into something that is more like the Apple 24� display, even if I need to do electronics work in it.
I am in IT and have access to a lot of dead stuff I can scavenge for parts. I am also an electronic technician, so I should be able to do this. I just don�t know what I need to do.
Hunting down info on this topic has come with that there are controller issues. If I can pull a controller out of another dead LCD display that I happen to have, I can see it working. I can even see the possibility of adding the electronics from a USB hub to pipe USB functions over a DVI cable. And get the iSite and speakers working.
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Feb 2, 2009
I've bought a dual 2Ghz powermac G5 secondhand, and bought a new drive and installed 10.4.3 and updated to 10.4.11, the fans where always on full blast so i searched the forums and ran the Thermal Calibration utility, everything seemed fine for a week. Then it started turning itself off with a click from the power supply after i left it on all night while downloading.
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Oct 18, 2006
dont know if this is the right thread but, i picked up a Performa 5200CD, from the dump, and its in perfect condition, but when you go to turn the power on, it does nothing, could this have a dead power suply, broken switch?
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Dec 30, 2008
A friend of mine brought over his 14" iBook G4, 1.33GHz, 60GB HDD and 1.25 GB RAM. The problem with it is that upon start-up, the grey screen with the apple/turning gear comes up, then after a few moments a blue screen will appear, though no box showing the start-up process. I've run a few basic diagnostics on this, including the lovely disk utility (which did nothing), I've run fsck, zapped the PRAM, etc, no success as of yet. At one point, I received a screen with alternating folders, one showing the smiley mac face, the other folder with a flashing "?". I cannot replicate this for the life of me. I have attempted to acquire files via TDM, though am not able to see the hard drive despite using 2 different laptops. Possibly the firewire cable itself is spent, though it's brand new! Here is where I become increasingly frustrated: I ask my friend for the boot disks as the ones for my own 12" iBook don't work (for whatever reason). He tells me that he loaded Leopard this summer (currently running 10.5.2, no updates loaded since), then proceeds to bring over boot discs for a MacBook...:headdesk: To begin with, it seemed like the HDD was fried, however, after running disk utility (and not hearing any negative sounds), it does appear that the HDD is fine. I'm thinking a kernel panic, though not sure how to resolve these.
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May 7, 2005
I had an iBook, now I have a powerbook. Both have the feature when I shut the computers and they are in sleep mode, the light goes from dim to bright to dim to bright..... It drives me nuts. I have to put my computer in a drawer or cover it up at night. Does anyone know how to turn the light off? or have it be constant? Is there a download that fixes it?
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Feb 20, 2007
Is there a way to turn on the light in the keyboard even if there is enough light to keep it off?
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Jul 26, 2007
I bought 4 G4 towers of eBay for �85.. none have Hdd's so havent tried them out yet (two also have no graphic cards) I got a mix of ram size and speed (pc100/pc133) however thats not my question
Next to the ram slots theres a red light that comes on, is this normal? I've tried to do some research on it and some people say it is, others say it isnt.
I plan to sell them off again on ebay but I did it mainly as a project to keep the G4's alive. Any suggestions on graphic cards (cheap ones too)?
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Apr 20, 2008
My keyboard won't light up anymore - I am in a dark room, with all lights out - no light up keys.
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Dec 6, 2008
[URL] I went here. I have found out the iMac is a 2nd gen iMac G5. It has an ambient light sensor. I put my hand over it and it doesn't appear to actually do anything.
What is it supposed to do?
Do new ones have it? I have a 20" aluminum one as well, but don't see a sensor.
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Aug 10, 2009
My powerbook G4 has a button thats used to unhinge the LCD screen and flip the computer open. When I flip it open, the light turns on, but it should be off. If I pull the LCD screen forward as if I am going to close the screen, the light turns off as I am pulling the screen forward. As soon as I stop the motion, the power light goes back on. Its very odd.
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Oct 28, 2009
So I've done all I can find on the internet on helping my broken computer. It used to have the noisy fan issue and then it would shut off. Now after being off for 12 hours, it may shut off in 2 minutes, maybe in 30. I have reset the SMU by unplugging for 10 seconds and then plugging in while simultaneously holding the power button, then turning it on. Ive also reset the PRAM, but it still seems to shut off. Is it a bad power supply? I dont ever hear the fans blowing hard anymore.
If anyone has basic things to do, I'm all ears. I know last step is probably just reinstall OSX.
I'm on 10.4 right now.
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Apr 2, 2007
I have an ibook G4 (2years old, a part of the battery swap program) that charges normally... for about twenty minutes. Then the light around the charger turns from it's normal "i'm charging" orange to nothing, the light goes out and the ibook switches to battery power. I've just inspected the power chord and there are no strains or tears, the plug at both ends are in good condition and the ibook power socket is fine too.
I've turned the ibook off for a period of time (two days) and reset the power manager... still no difference. The ibook looks and acts just like it should until about twenty minutes into the charge then the light turns off and it's like it's been disconnected. The chord is in correctly, i've even tried the apple extension chord = no joy. If i reconnect the power chord at the wall it's fine, starts charging again... and yes i've tried different sockets on different circuits in the house!
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Aug 29, 2007
I searched forums etc. I have a 867 12" powerbook. The problem is that it will not turn on at all. I took the battery out and pressed a few key and it worked for a little while. Now when I plug it up to recharge the light goes green to red then off. I found a so called reset button on the apple site and lifted the keyboard and it is not in site.
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Jan 23, 2008
I've got a G4 iBook that came in because the user thought the battery was dead. I tried the usual fixes, PMU, NVRAM, PRAM, different power adapter, etc. When I ran some tests (Coconut Battery) to see if the above worked, I found that the problem wasn't the battery (it still has 3888 mAh out of 4400). The symptom: The AC light alternates between green and amber even though the battery is only at 18% charge. It will stay amber for about 45 seconds then switch to green, vice-versa. It has been plugged in now for 2 hours + and has gone from 16% to 18%, so it does seem to be charging. I have adjusted the power saver so that the machine doesn't go to sleep or have the display dim as I thought sleep mode may have something to do with it.
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Nov 25, 2008
When I push the power button on my eMac the light come on but it just blink and also make beeps. Can anyone tell me why I am having this prob.. I am new to Mac.
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