Power Mac G5 :: Overheating In Idle Mode - Fans Blow Harder
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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Mar 8, 2012
A few days ago my MBP started spinning up the fans like I was doing something really intensive. Only I wasn't. I installed smcfancontrol and it reported both fans at close to 6000rpm (5899 is the highest I've seen it) and a cpu temp of 75 c - 85 c while idle. iStat Pro reported the same. No apps running after a reboot and the fans instantly spin up and the cpu temp hovers around the 80 mark. I'm of the understanding that 50 - 70 is considered normal with the fans in the 2000-3000 rpm range. Yes? Heres a screen cap with only Activity Monitor running. You can see the most intensive process is 3.5% and the temp and fan speed can be seen in the upper right.[URL]
Info:
MacBook Pro (17-inch Mid 2009), Mac OS X (10.6.8), 8GB, 1TB
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Jun 12, 2012
How do I turn on the fans on my iMac to keep it from overheating? I used to be able to turn them on when I plugged in the computer and turned the computer on simultaneously but that stopped working.
Info:
iMac (20-inch Late 2006), Mac OS X (10.6.4)
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May 7, 2008
just received my new MP and noticed the same thing with the 08 Modell which is that the door sits slightly offset on the case meaning theres a little gap about 0,5mm between the closed door and the outer case.
Second my fans "boostA & boostB" are spinning at 1100rpm at idle I thought they should normally idle at around 800rpm? (I read at least)
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Mar 30, 2012
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)
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Sep 7, 2010
Over the past few weeks my blackbook has been shutting down more and more frequently from what I can only believe is overheating. I just checked my computer upon startup with SMC fan control - it starts up at about 70 C and at about 3500 RPM. Yet, after a few minutes, the fan immediately drops down to 1100 RPM or and fluctuates between 800-1400. I try to force the fans to spin with SMC Fan control, but nothing happens. I've looked all over the web and I can't find anything definitive. I know that macbooks tend to overheat. What can I do? I'm at college and I really need to find a fix for this as soon as possible.
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Jul 5, 2012
My Macbook's been overheating and shutting itself down the past two days, usually when on YouTube. Having installed the Fan Control system preference, I can see the fans aren't running at all. My first thought is that they might be broken, but this happened for a little while last year, too, and the fans started working again after a while. Also, it's been miserably hot in my area the past week, and I wonder if that's contributed to it, too (even though the laptop's in an air-conditioned room). Anyway, should I wait and see if the fans begin working again, take it to a repair shop (warranty's expired, so I'm not keen on that), or maybe buy a cooler pad?
Info:
MacBook, Mac OS X (10.5.8)
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Mar 7, 2008
Eeven after the keyboard update (2/19), my mac still seems to ignore the first key I press when my computer is idle. usually happens with the pause, play, caps lock, etc. i tried to redownload the keyboard update from the apple site, but it said my keyboard did not need the update because its already updated.
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Apr 12, 2012
While in a notebook bag will my 2011 17-inch MacBook Pro overheat in sleep mode.
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Aug 4, 2010
I think my 2010 15" i7 MacBook Pro is overheating. Today when I was in bootcamp playing the sims 3 my MacBook suddenly went to sleep. I checked the MacBook and it was super hot. The MacBook was in clamshell mode with a monitor keyboard & Mouse.
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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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May 4, 2012
I'm getting overheating at the point where power enters the computer (the little cylindrical device that plugs into the magnetized power port.) The transformer feels fine, as does the cable, but that cylindrical plug gets way two hot to touch. Other answers relating to this subject indicate that charging an almost exhausted battery while also using the computer will cause overheating in the transformer, but the transformer feels fine. It's that little cylindrical plug that collects an amazing and worrisome amount of heat.
Info:MacBook Pro (15-inch Mid 2010), Mac OS X (10.6.8)
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Sep 13, 2008
I was using my Imac G5 (pre iSight) and it suddenly shut down. It smelled of burnt plastic so I immediately disconnected the power and all accessories, laid the computer down, and took off the cover. Everything seemed normal, except the smell of burnt plastic coming from the fan and faintly from the power supply. I took the metal piece covering the fan and hard drive, and attempted to clean the fan. After about an hour I put the cover back on, plugged my computer back in, and started it up. It again shut down after about half an hour of use. What's wrong? Do I need a new power supply? I checked the Apple Recall and my serial fits, but the symptoms do not follow the ones in the recall.
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Mar 31, 2012
I've bought a brand new MPB 15'' about 2 days ago.Â
Every time I put it in sleep mode (by closing lid, or manually choose Sleep from menu) it goes to sleep (I check it by front indicator), but FANS STARTING TO ROTATE AT MAX SPEED (Sorry for CAPS)Â
I've already reseted the PRAM, reseted the SMC. Turn off any sharing. But that did not help.
Info:
MacBook Pro, Mac OS X (10.7.3)
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Aug 23, 2008
Fall 2005 PowerMac G5 dual 2.0Ghz with Leopard 10.5.4
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Oct 1, 2009
I have a new macbook, see stats below.
Up till last week everything was fine, I could run 'Second Life', photoshop, email, a browser, download stuff, play Itunes AND watch a movie all at once without any trouble.
But recently the computer has gone a bit weird.
It started getting very hot, much slower and turning itself off.
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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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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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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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Jun 18, 2010
Just on a curious thought, anybody's MBPs experiencing heat issues that cause the fans to kick in so much that they power off instantly? And another question, if you do feel heat, where is it the most intense?
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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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Oct 9, 2005
I just bought a new dual 2.0 ghz power mac G5 about 2 weeks ago. I set everything up and dowloaded all the updates for everything, and then about a week into using it the problem started. I left for work and when I got home that evening after the computer had been asleep all day, it sounded like the computer was taking off from a runway. It would not respond at all to the keyboard or mouse so I had to shut it down by holding the power button on the front of the unit and then start it back up. I called tech support but they had me turn the option off that puts the harddrive to sleep when possible and then turn off my screensaver. Well it was fine again for about a week and then it happened agin yesterday, not once but twice. I looked on apple discussion boards and there is alot of this happening. Well I took one guy's advice that seemed to know what he was talking about. I restarted holding the command-option-o-f keys down, then prompted the computer to reset the v-ram, and two other things he suggested to reset that I cannot remember. Then I restarted, trashed the energy saver prefs and ran a repair disk permissions task inside OSX. Well that is where I am now, and it has not done it again, but I am still trying to find out what exactly is going on here. I just spent $2000 on a machine and it appears messed up and Mac has no answer.
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May 12, 2010
The macbook pro unibody is a lot harder to click. When I first used it my whole arm was more sore. Now my pointer finger and hand in general is getting more and more sore. My old MacBook was so much easier to click. I am thinking of buying a PC and going the hackintosh route. already do use tap to click, hence my finger hurting. If you try the new unibody next to the old macbook pros, the older ones where a LOT easier to click.
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Jun 13, 2012
I have always been nervous that if I turn up my volume all the way on my Air the speakers will blow out or start having issues.
Info:MacBook Air, Mac OS X (10.7.1)
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Apr 16, 2010
I am tempted to jump on getting a new Mac Pro now instead of waiting. Primarily because i dont want to be priced out of getting the higher end model with more cores. If they do come out with a 6 and 12 core config. i would want to buy the 12 core but a lot of rumors around here and on other sites say that the new models will likely come with a price increase. potentially leaving me having to buy the 6 core model. 8 core current Vs 6 core future This makes me think i'll just get the 8 core current. BUT Are there any features that apple may add that would blow the current models away. USB 3.0, BluRay, etc. I can live without many of these things.. but perhaps i am missing something.
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Jun 21, 2010
My MBP 5,1 has been a rock solid machine save for a flaky optical drive, but it had been getting extremely hot, especially while gaming. I mean >90 C hot. So today I opened it up to be greeted by a colossal amount of dust and fuzz. Took it outside and thoroughly blew it out; then removed some enormous dust bunnies from each fan housing with a toothpick. Now it's much cooler; I can game all day and never peak above 80 C even on the 9600m GT graphics. So, if you've had your MBP a while and it's running hot, blowing the dust out might do the trick!
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