Power Mac G5 :: Loud Wild Fans - Hang Ups And Hard Reset
Dec 7, 2007
I have a DP 2.7 G5 Tower and lately I come into my office to find it with dark screens (dual monitor setup), and I am unable to in any way control it by the mouse or keyboard. I imagine it's "hung?" The fans are on full blast and it sounds like it's planning to take off at any moment. I've awakened in the middle of the night by the sound of it and it's in that same state. What to do? I restart it at the power button. I then have to run Disk Utility to verify all the disks and RAID setups.
Anyway, I read about the coolant leaks issues. I started running a temperature monitoring program for the past few months, and its been doing about the same type of pattern since I started monitoring it. Doesn't appear to be unusual. Everything appears to be working fairly well, except for this issue. System is OS X.4.11, and checks out fine with Disk Utility. So far the hard reboots haven't done any damage to my disks, but it worries me greatly. Also the "liquid cooled" aspect worries me greatly.
Information:
Multiple Macs iMac G5 & PowerMac G5
Mac OS X (10.4.10)
Liquid Cooled
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Mar 24, 2012
I was out of town so this description was second hand but the computer has been running a little weird for a while. When I have too many apps open or on a website that has a lot going on...the computer starts revving up until I quit out of everything and let it slow down. I guess while I was gone, this happened but nobody quit out the apps and it eventually turned the screen black. When I tried restarting it sounds like the computer is working but the screen is black so I can't see if it is booting up or not. I took the monitor into the apple store yesterday and it started up right away for them. It's a cinema 23" I think.
Info:
Power Mac G5 (Late 2005), Mac OS X (10.5.8)
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May 25, 2012
I've had problems with my Mac for a while now. First of all, it indicated ram problems with 2 beeps. I later fixed this by moving and changing around modules. It was solved, but now a new problem. The Mac seems to turn on, making its iconic sound for startup, but the screen remains black. After about a half to one minute, the fans go crazy and I have to shut it off. I've tried a few things like holding shift or alt, but that doesn't work as it doesn't even display a white screen.Â
I need to know what to do and I don't really have the time to buy new parts right now. I'm really a windows based pc fixer by the way so I'm new to fixing macs.Â
Info:
iPad, iOS 5.0.1
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May 9, 2009
I notice that while streaming a movie, watching a dvd or playing a game my hard drive fan is so loud, its annoying. I have a 2008 White Macbook and i replaced the stock hard drive with a western digital 5400rpm 320gb and I only have 1gig of ram. I have no problem replacing the hard drive for a 7200 but i just need to know if its worth it. If i were to upgrade the ram to 2gigs would that solve the problem? Is it possible to install a 500gig drive into the white macbooks?
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Dec 3, 2007
This morning the hard drive on my G5 sounded like it was at 8000 rpm's and there was a message on my screen to shut down the computer using the power button. I did this. Now anytime I try to power back up, I get the white screen with the apple and the "booting" icon, which then goes to a blue screen with the same icon, which then is just the blue screen with my mouse icon floating around. Also, on the random occasion, after booting to the blue screen it takes me to a DOS looking screen that asks for my login and password, of which I have neither.
Information:
Power Mac G5
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Nov 16, 2008
I have a MacPro 2.66 quad-core intel. 4gb ram. I have a hard-drive from my old Powermac that i upgraded to 10.5.5 for this computer. Everytime I put my computer to sleep, and then wake it back up. The fans spin up to maximum speed and all the fans are running really loud and then after about a minute all spin to normal speed.
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Sep 22, 2009
Anyone else experiencing this? My fans have been going pretty much nonstop audibly since the 10.6 install. The "normal" for the fans is about 2000rpm, and now they RARELY dip under 3000, and the "new norm" is a very audible 4000-5000rmps.
This is SO annoying! Anyone else?
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Jun 6, 2009
I have a Power Mac G5 that turns on but there is no chime- a black screen and after 3-4 minutes the fans start running flat out and get loud. I have tried unplugging everything- plugging it all back up, starting and holding down command option P & R but nothing is helping. It has no apple care so they will not help troubleshoot it.I turned it on tonight and it powered up fine- Then as i was checking mail the screen went black.
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Sep 27, 2009
I just received my new Mac Pro from apple on Saturday. This thing is a beast! I am planning on running apps from Final Cut Studio 3, Photoshop, After Effects, and others. 2.66 Quad/6GB RAM (OWC)/640GB HD/ATI 4870
I have a few questions.
1.) Is it normal for the Mac Pro's fans to make a lot of noise when you first start it up or wake it from sleep? My fans make a lot of noise for about 16 seconds or so.
2.) I am planning to put a second optical drive in it. Is there a way to eject only one tray at a time, or will it do both?
Now, I am selling my iMac for around $800 and I am looking at some upgrades:
An additional 21.5" Acer LCD display
A mini display port to dvi adapter
A LG blu ray burner
Two 1TB samsung internal HDs
A blu ray player (I do not have one yet)
Elgato Eye TV hybrid
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Mar 8, 2012
It started off as a wierd whirring noise. slosly got louder. now the macbook actually vibrates to it.
Info:
MacBook Pro, iOS 5.0.1
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May 24, 2012
I have an early 2010 MBP (13 inch) whose RAM I upgraded to 8GB and the hard drive I upgraded to 750GB.Ever since I installed OSX Lion it takes ages to boot up (far slower than Snow Leopard which booted up almost instantly from turn on).Furthermore, when running, it gets very hot when running Windows virtualisation software inside OSX (VMWare Fusion 4/Parallels Desktop 6/7 - same results) and the fans turn on and become noticeabley loud.The machine is still under Applecare Warranty, is there anything I can do myself to resolve this, especially the heat/noisy fans?Is it due to having to work harder to virtualise Windows inside OSX and so run both systems concurrently, thus requiring more resources? Â
Info:
MacBook Pro, Mac OS X (10.7.4)
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Sep 15, 2010
So I got my macbook pro yesterday and I've been doing some basic stuff on it. While I was installing World of Warcraft, the computer jumped up about 101 degrees celcius. I know I shouldn't trust istat pro 100% but still, my fans are running super loud and the computer is very hot to touch. I'm not running any heavy programs or doing any gaming. I had Aol Instant Messenger on, and WoW instaling in the background. I'd like to also add that when opening various programs I get the spinning beachball very often.
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Jan 20, 2009
Well, I am considering buying the new MacBook or the MacBook Pro. I currently have a whitebook and I would like to ask the alu MacBook users the following question. Is the alu MacBook fans going really laud when you visit web sites with flash videos or when you watch youtube videos. I am asking that because my whitebook is getting laud as hell then I perform the above actions and if the alubook is doing the same I am considering buying the Pro, which is match more quite.
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May 27, 2012
Today my Macbook has suddenly begun to act slow and the fans are running quite loud. I read online that I should try checking the activity moniter, and I did this, and a program is currently taking a large portion of my CPU. However, I am unable to quit it and I'm sure it is the problem. In one of the description fields it is lableled "root" and says "kernel_task".
Info:
MacBook Pro
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Jul 9, 2009
I recently purchased a 13" 2.26 stock macbook. It's perfect, screen is good (no scrolling issues or purple blues) with no dead pixels, no slanted keys, and no scratches.
I updated the firmware that addresses the SATA 1.5 issue. After the update, I reset PRAM. I held down the buttons till I heard the second or third startup bong.
Here is where it gets funny.
Now, when I reboot or start up my computer, the start up noise is loud. Even with headphones plugged in and also the volume turned to its lowest setting (even with volume turned off). Eventually, to control the startup noise, I had to install the startupsound program in my system prefs as mentioned on other threads and that has seemed to control the startup sound.
I was wondering, if by resetting the PRAM if I have harmed my computer in any way. Should I be worried about deeper issues with my computer since the startup sound was not previously being affected by reducing the volume to zero with headphones plugged in?
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Jul 3, 2012
I have a refubished iMac G5 OS X 10.6.8 desktop that was purchased in Aug, 2006. Recently it has been either freezing, shutting down completely, or the display will just shut off multiple times per day 20+ times/day. I am not interested in purchasing the $49 help from Apple. Is it time for a new computer?Â
I've been attempting some troubleshooting:
I have plenty of RAM- we installed more memory about 8 months ago. Temperature running at 40 degrees CÂ
I reset the SMU but now am hearing a loud fan sound and there is air blowing out of the horizontal vent in back of the desktop- which does not typically happen. The computer has not crashed since I reset the SMU 20 minutes ago. I'm worried about the noise.Â
Also, it has been really hot where I live, with a heat index of 110 today and I don't have air conditioning. Current indoor air temp is about 86 degrees F.  Â
Also, I have been seeing thin horizontal stripes across my screen for the past few months, related or unrelated issue?Â
Info:
iMac, Mac OS X (10.6.8)
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Feb 28, 2009
I'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.
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May 31, 2009
I bought a western digital passport hard drive last week. everything was working fine until yesterday. when trying to copy iMovie events to the drive, it hung, and iMovie crashed. Since that time, everytime I try to mount the drive, my finder hangs. I cannot eject the drive properly. I cannot access any old files. I can continue to use other applications, including flock, or tweetie, etc. but can't do anything with the drive.
I have tried searching the forums, (i'm not an advanced user). I have tried using disk utility, and it says; 'The disk ?Murtaza Malik HD? could not be unmounted' When I try to eject it says the drive is in use, and cannot be ejected. I was using the drive with time machine. I disabled that, and now time machine also hangs when i try to access it.
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Nov 18, 2007
My G5 has been making more noise at start up. It sounds like one of the fans is making a grinding "rrrrrrhhhh" noise. My living space if very cold and quite dusty (warehouse). I notice it more on colder mornings ( inside temp 45° - 65°F ). Should I refrain from using my machine on cold mornings/nights until the heat is running?
Information:
Dual 1.8 G5 (2003)
Mac OS X (10.4.11)
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Apr 4, 2012
I've had an external 1.5TB MyBook for around five years now and recently decided to backup/replace it with a 2.0TB MyBook. However I'm having a lot of trouble finding a simple, painless way to copy all my files from one to the other. The hard drive is simply an external host for my iTunes library, which contains nearly 140,000 files. Initially I tried copying the entirety of my Music folder over, but for some reason it hit a hang at 96.58GB/947.06GB and has never progressed. I then attempted to do smaller transfers and got about 1/4 of the way through my library doing so, but I've experienced more hangs along the way.
Can't cancel the copy operation once they occur, so they just sit there on my screen. I attempted to restart my computer but Finder won't allow me to shut down without first canceling the copy processes. All of the guides I have found on the internet, including the Apple website, seem to indicate that this is the only way to do things, which is beginning to really frustrate me since it also seems to be a method that doesn't work very well; in fact, it seems to succeed mostly by random chance. Is there something I could do to ensure this doesn't keep happening, preferably so that I could go back to my original idea of copying the entire folder over at once?
Info:
iMac G5, Mac OS X (10.5.8), 2.4 GHz Intel Core 2 Duo 1 GB 800 MHz DDR2 SDRAM
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Dec 29, 2007
I have a problem with my G5 freezing and it is preceded with by loud fan noise. I was wondering if the hard drive could be the problem? It had the problem with 10.4 as well as 10.5. It happens at startup most of the time and eventually lets me get up and running and stops being a problem.
Information:
G5
Mac OS X (10.5.1)
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Mar 2, 2012
When I power up my iMac, I encountered a very loud fan sound in the background that I had never encountered before.This happens despite turning off and powering up again.
Info:
iMac, Mac OS X (10.5.8)
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Nov 3, 2007
My back up 1.6 ghz G5 power mac is misbehaving. I moved the system to another room and when I went to boot up, the only response I got was the fans running at normal speed - and then they started to slowly creep up to a very high speed. No hard drive activity, no monitor activity. I swapped out the memory for the original factory mem - same problem - reset the switch... nothing.
Information:
Power Mac G5 1.6 GHZ
Mac OS X (10.4.3)
1 Gig Mem, 80 Gig HD
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May 7, 2009
Over the last year I now and again get this strange this happening where the computer would freeze and the fan would come on at full speed and be very loud. It also started happening when I turn off the computer for a while and turn it back on again. It would not start up and the fan would just kick in. The only way I could get it going was to manually turn the machine on and off until it would eventually turn on properly. Sometimes I would have to do this 4 or 5 times.
Then today the computer just turned itself off automatically. No warning, nothing, just click and off like when you have a power cut, but there was no power cut. So I ran a quick hardware test from the OS installation disk and it said that it detected 2 faulty RAM sticks at startup. I was worried it might be a logic board problem but that has come back on the test saying it is okay.
Would having faulty RAM cause the above to happen? And how reliable is the hardware test that comes with the Apple OS installation disk? I am praying it is just RAM and nothing more expensive. I am gonna clean out the fan today, and dust things down a little bit just in case it is a bit of dirt or something, but I would be interested in other people's opinions.
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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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May 31, 2012
My powerMac G5 keeps freezing with the fans highly idled
Info:
PowerMac, iOS 4.3.3
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Jun 25, 2010
My PCI bay fan is running at full speed no matter what. The temperature sensor reads correctly in OS X, so I don't think it's a bad sensor.
Is there any way to set the fan speed manually, say in openfirmware?
It's a 1.8 DP June '04; I've ran ASD 2.5.8 to calibrate and test the mobo, which passed.
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May 14, 2012
The fans starts but no video... nothing?
Info:
Mac Pro, Mac OS X (10.7.2)
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Feb 25, 2012
my mac power g4 model 8493 will not power up/ turn on
Info:
PowerMac
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Nov 6, 2007
I have a G5 dual 2gig and in idle mode it seems to a be slightly overheating as my fans start to blow harder and I get my mouse sticking I am running the latest version of Tiger with 3.5gigs of ram I did post in the IDvD, Logic Pro, and the Final cut pro forums the impact of an upgrade of 8gig of ram on my system whether my apps would run better and the system as a whole.
But I have not been able to get any feed back on this that was clear and I was asked to try here on this forum so here I am. I deeply love my G5 and what it can do I am just wondering if it is working at its most optimum I do regularly do my house keeping i.e. repairing permission and occasionally using Tech tool Pro to look over the system but nothing out of the ordinary jumps out. I have a screen shot of my activity monitor and cpu monitor but I do not know how to attach it.
Information:
G5 Dual 2 GiG
Mac OS X (10.4.9)
3.5gig of Ram 1530 Gigs of HD storrage/RME Hammerfall Multiface /Canopus 100
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