I'm trying to fix a friend's G5 desktop, 1st generation. 1st LED comes on, 2nd LED comes on when I press start button. Power supply voltages are correct. Hard drive runs, but fans don't come on. I have power to fans. 5 and 12 volts. No beeps. Pressed SMU button as well, and nothing changes. Don't see any bulging caps. Someone else changed a few before I got it. Also jiggled RAM chips.
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iMac
My parents recently bought an iMac. Yesterday my mom was playing a game when the computer froze. Neither force quit or holding the power button was doing anything so in her frustration she unplugged the system. Today, after plugging in the system again, it won't turn on.
I press the power button on the side of the wireless keyboard and the green light on the keyboard turns on for about 3 sec and then starts flashing. No fans start up and the screen does nothing.
Information:
iMac and Macbook Pro
Mac OS X (10.6.3)
My Mum has just turned on our family computer- an iMac G5, 1.9ghz 17" (first model with built in iSight).
It gets to the grey screen with the apple, with the loading icon below it, then after about a minute the fans turn out pretty loudly, and it goes no further, just stays on the grey screen.
I am unable to start Parallels Desktop 7 since upgrading to Mavericks on my IMac. The error messages tell me that visualization support is disabled, unable to load Parallels driver and unable to start the virtual machine.
Info:
iMac (27-inch Mid 2011), OS X Mavericks (10.9.4)
i have a 2.4 ghz alum macbook and i was wondering at what temperatures does your fans start to actually spin up. i'm at 70C right now and it still hovers at +/- 2000 rpm just wondering if this is normal i used smc fan controller for a little bit but i decided that i would just leave it to apples default and use a laptop cooler if i really need the extra disccipation.
View 5 Replies View Relatedmy macbook pro fans some times start making a noise like when you insert some cd and it gets hot i havent drop water or drop it its very weird it started to do that yesterday and i bought this mac in december so really i dont know what is happening?
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MacBook Pro, Mac OS X (10.7.4)
The other night, my MacBook Pro's fans started running at high speed when the computer was asleep. Loud enough to wake me up. And this just kept on going until I finally decided to turn the computer off. Is this normal? Is this anything to worry about?
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MacBook Pro with Retina display, OS X Mavericks (10.9.3)
I have an iBook 500Mhtz PPC G3, 384 RAM, 10GB HD, Dual USB. Several months ago, I opened it up and it simply would not start up. No start up sound, no noise from the fans/HD/anything, motionless. Completely dead. I've held (many times) the PMU, and tried almost anything. Is there anything else I can do to get it to AT LEAST turn on? The battery is dead, and the charger is fine, but the battery won't charge. I tested the charger on a PB G4. I'd rather sell the whole computer as a working computer. I figured I'd get more money that way. do I need to sell it for parts?
View 3 Replies View Relatedthe other day i wake up and open my macbook pro and immediately heard the fan making noises ive never heard it make before. i checked istat pro. the fans were going at 2000rpm. this is when i started to get concerned since i would never hear the fans at that speed before. the difference was day and night. it sounds like the one or both of the fans are hitting something. i always hear the noise when i start up or wake up from sleep and after a while (30 minutes to an hour) it usually goes away but has come back once without me turning off or putting the computer to sleep. its a refurbished less than a little more than a month ago. im hoping its just some dirt that made it through keyboard and will eventually go away because i dont want to send my machine in to get manhandled by apple repair. has anyone had something like this happen before?
View 2 Replies View RelatedAny tips on how to fix this?Usually, the CPU fan is stuck at 4500RPMs constantly, CPUs 28?? it runs the fan at 5000RPMs.But whenever the CPU is cooking, such as 92?, it won't run at all, but the other two fans will be at full blast.
Any tips on how to fix this? I took the computer to the apple store 3 times for this issue but every time they "could not recreate the issue". The last time the replaced the fans in the computer, but that didn't fix anything.Anything that would point me in the direction of fixing this? It's just melting itself. Alum. iMac.
computer won't start. tried unplugging and holding in start button. After about a half hour and unplugging a few times, finally got it going. Imac G5
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iMac, MacOS X (10.5)
I have brought a new iMac 27'' the i5 model. I have noticed that the fans never change speed no matter how hot my processor gets ? Is this normal ? I have ran prime 95 and istat pro to check the temps and fan speeds. Nothing changes apart from the temperature.
Info:
iMac, Mac OS X (10.7.3)
I have a 2007 Intel 24" iMac (Last of the white plastic editions) and I've recently had troubles with the 7600GT Graphics card. The computer would get strange artifacts all over the screen, before crashing. Unfortunately, it is out of Applecare, so I took it into a shop and had the card replaced. Upon receiving it back, they told me that they replaced the graphics card, but still found problems with it booting up inconsistently. After some testing, they realised it was the Hard Drive controller at fault, and put my harddrive in an external USB enclosure and booted it off that instead. This was an easier solution than replacing the entire logic board, they told me. (and they gave me the enclosure for free).
Now I've brought it home, and set it all up, only to find that the HDD fans are constantly spinning at 5600 RPM, which is deafeningly loud, even so over my room fan. I presume this is because there is no longer any hard drive controller/hard drive in there. I've installed SMC Fan Control, but to my dismay you can only set the minimum fan speed, and not the max. If possible, i'd like to set the max fan speed at a much lower rate, without needing to open up the iMac. So my questions are:
Is there a way I can set the max fanspeed for the HDD, or disable it since there isn't one in there anyway? And is there a better solution for booting my iMac OS onto an external HDD? (i.e. Should I look into buying a firewire 800 drive enclosure instead of this USB 2.0 one?)
What is wrong with this picture? The fans are running out of control constantly. This machine is sooo loud. The power supply was just replaced, which did little/nothing. Reset all ram/etc.
View 3 Replies View RelatedI've got a little problem with my iMac 24" 2.8 GHz Nvidia Geforce 8800GS 500GB. When I start it up, the fans start blowing at full speed. I checked the apple support page for support and found my problem with all the symptoms being correct. The support said I had to reset the SMC by shutting down the iMac, then removing the power cord and all the other one's, wait 15 seconds and then put the power cord and the other one's in respectively. I did this almost 10 times, but my iMac still won't stop making those annoying noises. Maybe it has to do with the SMC fancontrol app my brother installed lately.
View 2 Replies View RelatedSometimes when I put the display to sleep, my imac's fans will spin really fast until I restart the computer.
View 1 Replies View RelatedOriginally my iMac G5 (1.6 GHz 17 inch) was failing to boot up. It would get to the grey screen and the apple and it would just stay there and pretend to be a rocket ship with it's little fan whirring as fast as it could after five minutes. So I reset the SMU, fan stopped, still wouldn't boot. Booted it off the 10.5 install cd (which it was running fine until it wouldn't start up). It wouldn't see the Macintosh HD for a while unless you went to disc utility > partitions and changed it from current to one and instead of applying just let it sit there before switching it back to current. Took about 10 minutes of sitting there.
I did disk repair said there was no problem. Disk permission repair said there was a few problems and said it repaired them. To be safe I backed everything up using target disk mode (where the fan tried to play rocket again even though I reset the SMU), erased my hard drive and reinstalled. Now it shuts down randomly when it goes idle, and takes 10 minutes to start up past loading the dock to load the apple bar Mac HD icon and whatever is on the desktop (which is a single empty folder).
My iMac seems to be a lot more noisier (a low humming noise, maybe the fans), than it was when I purchased it in a couple of months ago. When I first got it, it was the quietness and boot time which I was impressed with more than anything. Now it's noisier and boot times have doubled. I have noticed that the fans for for HD and CPU constantly spin at 1200rpm or more, with no applications open and as soon as I switch on my iMac.
View 3 Replies View RelatedI have a 24" mid-2009 iMac, bought in June. It's behaving oddly over the past week or so. It fails to wake on sleep on the first attempt, but always succeeds on the second. When I say fails though, I mean that it *does* wake up, but goes back to sleep again after a few seconds. The other issue happened today, when I woke it up, in a cold room, the fans started up at full speed (I assume). It sounded terrifying to me as my iMac has never got that loud - not even playing games. I restarted it and it was the same, but died down after a while.
View 3 Replies View RelatedI've recently installed a Crucial M500 512 GB SSD into my 21.5" 2011 iMac. I've done this to quite a few iMacs, and am well aware that some have a temperature sensor on the factory-installed hard drive. This one, however, did not, and now that the SSD is installed, I'm getting constantly running fans.Â
The fans run whether it's booted from the internal SSD, an external FireWire HD, or even if it's sitting in Target Disk Mode or on the Boot Options screen, so I feel like it's hardware-related.Â
Here is my scenario....
1st start up- start chime then nothing, no screen signal fan stops but light stays on.
2nd start up- start chime, apple logo with load clock, then flash to blue screen, then desktop image kicks in.
The finder bar then appears but has chunks missing in blocks, icons are overlapped and duplicated or multi- colored horizontal lines followed by strobing.
To over come this I have too start up from the install DVD, go to disk utilities, repair disk permissions.
I then restart and everything is OK most of the time.
I have just been given a MDD 2003 1.25GHz desktop and installed new ram, and HD's into it, powered it up and nothing no chime the large internal fan power's up and a red led on logic board is showing, checked that I have correct type of memory ie PC2700 for this model but that's as far as I get with it.
View 2 Replies View RelatedMy parents have an older 20-inch white Intel iMac that has run great through the years. But about a week ago it just started spinning the CPU fans up to 3500-4000 RPMs and it won't bring them back down. Istat shows that the CPU temp is around 90 degrees and the computer remains cool to the touch.
So it isn't overheating. My parents keep it off most of the time because they don't want to ruin it, but they're planning on using it in their business they're trying to start up. We've done some web searches and nothing seems to fix it.
None of the applications on my desktop will open. I click on them and nothing happens. I tried to restart, shutdown and power off holding down the power button.
Info:
MacBook Pro (13-inch Mid 2009), Mac OS X (10.6.1)
When I start up my computer everything looks normal, all icons are on the desktop and my cursor is able to move. The problem is I can't affect any of the icons on the desktop (folders, files, etc)-every thing is frozen. After about 3 minutes it unfreezes and everything then works. what is the problem?
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mac pro
I just got a Parallels desktop 7 and I try to install it but the cd doesn't start when its inserted. The macbook pro I just got it few days back so its the last version.
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MacBook Pro with Retina display
The start up disc does not show up on my desktop, is there a trick to make it show up?
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MacBook
Macbook pro starts up slowly . Finally goes to OSX sign in screen After I sign in it goes to OSX default desktop with no toolbars, icons, nothingÂ
Info:
MacBook Pro, Mac OS X (10.5.8)
I have a G5 iMac - 2.1 ghz, 20", 250gb hd and 3gb ram, but it has been having problems starting up and it is also going to sleep midway through a task or at random times totally unprompted.
It now almost never starts up first time (I keep the iMac mains power lead always connected and the mains electricity supply turned on at all times now)- sometimes I will get the 'Start-up Chime' and then the cooling fans start spinning very loudly and then after a few seconds the iMac stops the start-up routine, but often when I try to start-up I don't even get the 'Start-up Chime' and I have to leave it for some time before trying again.
I can also now only get the iMac to run as a Firewire Target Disc by starting up with the T key held down and then using an old G4 (400mhz) Powerbook Titanium as the screen/keyboard by using the iMac HD as the startup disc for the Powerbook but this is obviously just a temporary work around.
I have also tried backing up all my data, and reinstalling the Mac OS X onto the iMac but the iMac still will not start-up normal and I still have to use it just as a Firewire HD.
I have an Intel IMAC, which is now out of warranty as I have had it for 16 months (and I was dumb enough not to get AppleCare). A few days back, my computer would not startup and everytime I hit the power button, I would hear some spinning noise but no chime from the iMAC. Yesterday, I tried it again and this time I heard the chime but the monitor did not start. I was then able to SSH into the MAC and see that it is indeed connected to the network and booted up, but the screen is still dead. Any ideas what I should do before the painful trip to the apple store ?
View 2 Replies View Related