Suspected overheating issues

Hey, everybody. I've had my PB for about 3 years now, and lately it's been freezing in the middle of graphics- or memory-intensive activities, like playing video games and watching movies stored on my hard drive. I've double-checked for viruses, corrupted files, and defragged, but it does not seem to have helped. I don't get the beach ball of doom, either. Instead, my computer simply stops responding. My cursor disappears, and it is not responsive to anything other than command-control-power reset, or holding the power button for 10 seconds. In addition, upon immediate restart, the computer continues to be frozen, staying at the gray screen for ten minutes or more before I finally hold the power button again to kill it. However, if I leave it off for awhile, then restart later, it boots fine, with no problems. These factors have led me to strongly believe that it's overheating, not to mention the known issue with the lower memory slot refusing to work due to overheating.
Unfortunately, my laptop is well beyond its warranty, and I'm on a tight budget. It's also not among those lucky serial numbers (at least it wasn't the last time I checked a few months ago) elligible for a motherboard replacement. Does anybody have any suggestions as to how to keep it cooler? (Aside from buying a MacBook Pro...which I'd love to have).
Thanks,
Greg Turnipseed

Hi Greg,
I think that I am experiencing exactly the same problems that you are having, since a month ago, more or less.
I am also having problems if I videochat for more than 45 minutes, or if I attempt to copy more than 10 GB, or if I watch a movie for more than 40 minutes. If I try to continue using my laptop after it froze for the first time in a session, then the frecuency of the freezes will increase drastically. I have to wait until it cools down.
Are you also having these sorts of problems?
It seems reasonable to think about overheating problems.
My machine is 1 year and a half old though. And it has already gotten its motherboard replace, after the first three months of use. I have one of those "lucky serial numbers".
I left my laptop at the local Mac Store (Birmingham), but they say that they haven't been able to find out why it freezes, that they need to keep it for a longer time to apply more tests on it.
Any advice?
Thanks,
Sergio
PowerBook G4 (15-inch Aluminum) Mac OS X (10.4.9)

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Alex.

Alex Cummaudo wrote:
I've noticed that the main fan will spin, on average, at 1200rpm. Is that normal? The iMac is very well ventilated and sits right next to a window...
That's the default fan speed on iMacs, so there isn't any problem with this.
Alex Cummaudo wrote:
I have also boot camped the iMac with a copy of Windows 8 so I could run some fairly power-hungry games. I intentionally purchased a high end iMac (27" display, Intel Core i7 3.4GHz, Nvidia GeForce 680MX Graphics, 1TB Fusion drive) and expected the iMac to run games flawlessly. However, after a few days, I noticed that the CPU and GPU had shot up to a worrying 80°C whenever I ran power-hungry games, with a very loud hissing noise from the fan. After running games for about 10 minutes, the fan will stop hissing, causing the GPU and CPU to increase to 100°C. The iMac then fails and switches off unexpectedly without any warning. After analysing the Windows event logs, I received an event ID 41: The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.
You must know that Boot Camp isn't compatible with Windows 8 and that Apple hasn't released drivers for Windows 8, so it can fail. Install Windows 7 inmediately until Apple launches updated drivers.
As it looks like the hard disk is damaged, I would take the Mac to an Apple Store. It's in warranty, so it should be repaired for free or you should receive a new one

Why apple has not fixed or atleast responded to users on LION Overheating issue???

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I think Apple doesnt care on whats happening in Apple community portal, so we all are on our on...
I had a very good impression abt apple. until before upgrading to Lion... crap my MONEY IS GONEEE.
For anyone who got solution for this issue, other than the trick to delete Citrix plugin, disable spotlight etc, I am ready to welcome any new WORKING solution for this OVERHEATING...

@@ds store i am thinking the same now...
@@Eric. i did trying that 2 weeks back itself.. no improvement
@@OGELTHORPE i already have the iStat Pro. this we can monitor the heat. thats it.. this wont solve the issue.
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Welcome to Apple Discussions!
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Regards,
Sujeet
[email protected]
+919266580154

Thank you for confirming, that this can in some cases solve the overheating.
And i agree with you, that it is not straight forward, and people has to be carefull

Found Permanent Solution to Overheating issues.

Alright this is the part where some of you are going to be happy with me and some of you are going to be upset. That's because I know how to solve overheating issues with xp, and with macbookpro using the Geforce 9400M, and the Geforce 9600M GT. This solution very well could work for other systems, if you find the right drivers. but here it goes.
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Install your new nvidia drivers, and it should show up in your Add/Remove programs as being around 1gb of drivers. You should notice when you start your bootcamp your computer is complaining about new hardware thats not installed. Well yes, we're still using the gfx card, but without the extra drivers that apparently promote this overheating and instability.
If you are having trouble, let me know I'd be happy to help you out, at any stage. Try this out, Worst case scenario, you have to put your disc back in and reinstall your drivers. Oh yes, And i'm using the newest disc out from Snow leopard. I don't know if the drivers are any different.
Note Your computer will still heat up, it just doesn't reach the point during gaming that it needs to shut off to save your processor. Please let me know if this works for anyone else. I suffered this problem, of shutting down after an hour or two of play for weeks until I discovered that this solution worked for me.
Message was edited by: Trilithiumn

Sounds like a damaged database.
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Hi
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1. Do you have any idea what could be going on?
2. Can apple do anything about a software-related kernel panic issue?
3. If Apple can't fix it, and an erase-install won't work, when else can I try?
Sorry for the long post, and thanks a bunch for the help, I appreciate it.
-Dan

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Equium A60-199 randomly shutting down -could it be overheating issue

Hi I am posting on behalf of a friend who has been experiencing her A60 laptop shutting down unexpectedlly.. ( she said it shut down after a few mins or when she tried opening Firefox)
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is the issue..
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Hello Cathy
I also believe the suddenly shutdowns are result of overheating. If the dust blocks cooling grill the air circulation is blocked and hardware can achieve critical hardware temperature very fast. Sometimes you can start any preinstalled application, the CPU usage goes to higher level and notebook will suddenly shuts down.
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If you need addresses and phone numbers for contacting ASP (Authorized service provider) please visit http://eu.computers.toshiba-europe.com > Support & Downloads.
Bye and good luck!

Will ICS update fix overheating issues on Xperia Mini?

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Does Mavericks 10.9.4 Fixes MacBook Pro (2007) Overheating Issues?

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I also tried the usual PRAM and SMC reset a few times while on Mavericks with no success.
It's not an app as it was behaving like that right after the install and before I installed any app.
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One option is to create a new partition (~30- 50 GB), install Mavericks, and ‘test drive’ it. If you like/don’t like it it, you can then remove the partition. Do a backup before you do anything. That keeps you from having to re-install another OS again.

Overheating Issue

Hi,Am using MBP 13,JUst before soomedays i replaced my Keyboard due to some accidental liquid issue-from a Authorized service center ,now am feeling a little bit overheating mainly on the leftside,i installed SMC Fancontrol and it shows 60 Degree Celcius sometimes with a fan speed of 2100-2600,
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Sounds like the liquid issue may have damaged the thermal sensor. You can perform an Apple Hardware Test, which will tell you if the thermal sensor is working properly. The AHT is located on one of the recovery discs that came with the MacBook Pro.

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Hi,
I have a dell 1564, with an I5 M430 cpu. I have cooling issues and as a result my CPU temperature peaks close to 90~95 degree Celsius sometimes on extended full cpu usage. In such situations , I cut down my usage , and manage to bring the temperature down back to reasnoble ranges of 60~75 degrees. However often in these situations even after cooling down, my cpu performance becomes very miserable. Normal browsing which usually uses 10~15% cpu show up as taking 80~90% cpu (as per top/ and other process monitors). I ran the "N-Queens" benchmark from hardinfo show drastically reduced performance. Post overheating the benchmark takes 35s, after a reboot it takes only 7seconds. I'm trying to track down the reason for this but can't seem to figure out what's the issue. Can someone help me out in this? I'm basically looking for a solution where I don't have to reboot every time I cross the temperature threshold just to get normal CPU performance again. Ideally if its downclocking somehow I'm hoping that it should reset back normally after temperature returns to normal ranges.
Stuff I've tried:
* dmesg : No new messages added during/after the overheating
* cpu scaling : cpu frequency reported by /proc/cpuinfo are back to the normal 2.26 GHz which is my peak scaling. Also I've tried all scaling governors , and even locking the frequency to 2.26GHz , doesn't seem to bring back the performance.
* suspending and resuming , in hopes of reseting any CPU modes. No luck, CPU still in bad performance. Only a reboot fixes it.
Output of cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 37
model name : Intel(R) Core(TM) i5 CPU M 430 @ 2.27GHz
stepping : 2
microcode : 0x9
cpu MHz : 2267.000
cache size : 3072 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 2
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 11
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 popcnt lahf_lm ida arat dtherm tpr_shadow vnmi flexpriority ept vpid
bogomips : 4523.40
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
... repeats 3 more times ...
Any suggestions , to either fix this , or ways to track down the issue, will be much appreciated. Will be happy to provide more details , logs, or specs if required. I'm right now totally clueless as to even how to figure out what's going wrong so anything is welcome.

The one thing that sticks out is Firefox is using an excessive amount of CPU resources. Delete Firefox and see if there is an improvement.
Ciao.

Suspected overheating issues

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