Excessive GPU/CPU heat - fan speed

Hey. So, I finished the minimal KDE install and everything is working fine, besides one problem I have regarding the GPU. It's as if the GPU is constantly running high because it is releasing excessive amounts of heat and the fan is quite noisy. This is all relative to how it runs on Windows, in which I can't even hear / fell the fan and it's not hot at all.
So I'm running the minimal KDE install, my processor is a i3-2310M and I'm running the Intel driver.
Is there any reason it would be running like so, can I provide any more information to help locate the issue?
Cheers.
Last edited by Sly (2011-12-22 22:40:01)

priapism wrote:
You didn't say, but I'm assuming that you have a laptop.
Have you done:
pacman -S cpufrequtils acpid laptop-mode-tools
If not, you need to install and configure these. The CPU defaults to running at max frequency all the time on a default arch install, and installing configuring these will enable power management of most devices in the system. This will also help save battery.
Make sure you add acpid and laptop-mode-tools to the daemons section of /etc/rc.conf, and add acpi-cpufreq ondemand_cpufreq to the modules section. Make sure to see the following:
https://wiki.archlinux.org/index.php/CP … cy_Scaling
https://wiki.archlinux.org/index.php/Laptop-mode-tools
This makes sense, thank you very much! I had wondered why the battery wasn't lasting as long.

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My desktop computer m9200T running Win7 Home Premium crashes often. It seems to be temperature related.
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This question was solved.
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Hi,
Only have one temperature monitoring application running or you could end up with erroneous readings.
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Another saga of fan overdrive blowing. I have a Power Mac G5 Dual 2.0Ghz, about 3 years old. About 1 year ago, had fan blowing after sleep problems (fans blow super hard, cannot wake from sleep). Eventually resolved this with Apple Care by near-total hardware replacement: fan replacement, fan sensor replacement, case replacement, finally logic board replacement. Problem fixed for 1 year.
Recently problem started again. Now, the fans blow full speed all the time, from the moment of boot (before OS loads). At first, resetting NVRAM from Open Firmware fixed the problem, but after a day or two it would start again. Now, nothing works - although if i manually put computer to sleep, the fans do turn off, and computer does wake up, which is nice.
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- "Error CPU0: CPU intake fan speed error. Check that inner door is secure and in place."
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I am having the same problem with a dual 2GHz G5. It runs fine, all temperatures look normal (in the 30-40 degree range), but all the fans are stuck on full.
There's a bit of history here: I used this machine for a while and intermittently it would completely freeze and the fans would increase to full speed (presumably to prevent damage to the components). This was never fixed because it happened only about once a month. Then, all of a sudden, it failed to start up completely. I figured it was a bad logic board. So now I have swapped the logic board, resulting in the computer seeming working fine apart from the full fan speed.
I read that the reason for this is that it needs a thermal recalibration. So I ran the Apple Service Diagnostic disk version 2.5.8 and it does indeed report that the CPUs require calibration. Unfortunately about 10 minutes after starting the calibration it reports "Error CPU0: CPU intake fan speed error. Check that inner door is secure and in place." The inner door is indeed secure and in place and indeed the red LED does come on if the inner door is removed, proving that the sensor is working properly.
e.f. - if you have any luck with the things that you are trying please post back here.

Unable to monitor/adjust fan speed? (GX740)

So i've got some gpu heat issues that I was attempting to rectify by jacking up the fans earlier when i discovered the fans operate outside of my monitoring or control... I'm using GPU Monitor 3.5 which picks up the load, temp and any other myriad of information from the gpu but the fan speed is pegged at 100%... even though i can hear it freely adjusting itself. I've tried acouple different programs but the end result is always the same. Any particular reason the fan would be showing no info?
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You can ask Svet to modify a BIOS for you.

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Did the fan (there is only one) always run full blast, even before your opened the Mini and did the upgrades? Or did it take some time running before the fan would speed up?
There are three general causes for the fan running fast:
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3) PMU reset procedure wrongly applied to an Intel Mini. Only PPC Minis get he PMU procedure. Intel Mini's should have the SMC reset instead. Applying the SMC reset can usually undo the damage. When the PMU procedure has been applied to an Intel Mini, the fan will run full speed all the time.
The SMC reset is described here:
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848P In CoreCenter - NB Fan Speed - But no Temp?

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G5 Jive fan speeds unacceptable (to me).

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Thanks
Mike

I have gone back to my 'homebrew' set up with two drives in the compartment in front of the CPU fans, but this time mounting them right at the edges and as high as possible. This gives a nearly unobstructed flow to the fans, especially the lower CPU B fans, and speeds have dropped accordingly, especially for CPU B.
When mounted on the floor, as I had before, and as the G5Jive does, the flow to CPU B fan is blocked more than CPU A fan. Yet on my G5, CPU B is always working harder, more current, more fan speed. So raising them up has had a much bigger effect on CPU B fan speeds.
One of the two extra drives is a 150 Gb Raptor, my boot drive. Mounted where it is, it is running 10 degrees C cooler than the drives in the drive bay, which must be good.

CPU heats up on file copy/backup and fan speed does not increase

Hi Friends,
I have been having issues with fan in my Dell Studio 1555. It has an ATI Radeon card and I had installed the proprietary catalyst driver as the open source driver is too noisy.
Recently, I noticed that on accessing my hard disk and copy files or running backup (luckybackup), the temperature shoots up from around 60 deg C (just using chrome) to 100 deg C when it would shut down itself. However, it seems like the fan speed does not increase with the increase in temperature to help it cool down.
I tried to get the fan speed details with "lm-sensors" but it would not show the fan speed. Here is the output of sensors:
[user@domain]$ sensors
acpitz-virtual-0
Adapter: Virtual device
temp1: +60.0°C (crit = +100.0°C)
temp2: +59.0°C (crit = +100.0°C)
temp3: +66.0°C (crit = +100.0°C)
coretemp-isa-0000
Adapter: ISA adapter
Core 0: +58.0°C (high = +105.0°C, crit = +105.0°C)
Core 1: +58.0°C (high = +105.0°C, crit = +105.0°C)
Following the Arch wiki, I added acpi_enforce_resources=lax to kernel parameters but it did not help as well.
Here is the main problem:
1. CPU temperature shoots on accessing hard drive but fan speed does not increase - Any guide/direction to investigate would be really helpful.
2. Sensors does not show the fan speed. Read about i8kutils, but couldn't figure out how to get it working with systemd. Any indicators here?
Last edited by ravisghosh (2013-07-01 05:22:01)

luuuciano wrote:Ravi, did you solved it?
Im having similar issue on a vostro 1710, fan never works... :-/
The fan was bad. I had to replace the fan. However, I have not been able to figure out how to see fan speed in sensors.
Last edited by ravisghosh (2013-09-08 15:57:37)

Heat/overheat and fan speed: worry?

Hi
My imac is 27 inch mid 2011
after i use my imac for 30 min, the machine is getting really hot on top. It happens fast if i play game like Leauge og legends in windows bootcamp, but it also gets really warm when i just surf on safari/internet. So no matter what i do, as long as i use imac, it gets really warm. Can anyone tell me why it gets hot? and sometimes fan make really loud noise, like imac is going to explode or melt itself. But my imac have never shutted down caz overheat.
Here's info of my imac:
27 inch, mid of 2011
Processor: 3,1 GHz Intercore i5
Memory: 8 GB 1333 MHz DDR3
Graphic: AMD Radeon HD 6970M 2048 MB
Mac OS X Lion 10.7.5 (11G63)
And here's my result of istatspro:
CPU:
User 1%
System 1%
Nice 0%
Idle 98%
Memory:
Wired 793 MB
Active 0.98 GB
Inactive 129 MB
Free 6.12 GB
Disks
Macintosh HD
U: 58.18
F: 204.2 GB
Bootcamp:
U: 105.8 GB
F: 38.85 GB
Network:
In: 0 Kb/S
Out 0Kb/S
Temps: (This varies a bit from recently warm to after awhile - warm) Temps in celcius
HD Macintosh: 60 C
CPU 57 C
Ambient 40 C
GPU Diode 65-67 C
GPU Heatsink 59-61 C
Mem Controller 58 C
Optical drive: 53 C
Power supply 2 69 C
Fans:
Optical drive 2340 rpm (recently warm) and after a while : 1441 rpm
Hard Drive: 2400 rpm
CPU Fan: 3797 rpm recently warm… After a while: 4198 rpm
Whats the normal temperature and fan speed?
And whats the reason to this heat issue?
How can i solve this?

My imac is on the table in the livingroom. So its not very hot in this room. Only reason of heat is the summer… but this heat problem has been since before winter…
do u have any tips or suggestion what i should do to solve this?
I dont want my imac to burn or melt inside

Tweak the balance between fan speed and CPU temperature / Dell M6400?

Hi all,
I have a Dell Precision M6400 17" laptop. It runs really well on Arch, but is a bit noisy. It has always been noisy, btw, but I recently noticed that the CPU fan was blowing a lot of air even though the CPU temperature is lower than 70°C. I also have a macbook air, and its CPU runs at 70°C all the time, which seems to be normal. I would like my m6400 to behave similarly, and I'm sure someone here know how to change that
Hardware configuration
* Intel(R) Core(TM)2 Extreme CPU Q9300 @ 2.53GHz
* Quadro FX 2700M (G94M)
* 8Go RAM
* 2 hard drives
lspci output
00:00.0 Host bridge: Intel Corporation 4 Series Chipset DRAM Controller (rev 03)
00:01.0 PCI bridge: Intel Corporation 4 Series Chipset PCI Express Root Port (rev 03)
00:1a.0 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 02)
00:1a.1 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 02)
00:1a.2 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 02)
00:1a.7 USB controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 02)
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 02)
00:1c.1 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 (rev 02)
00:1c.2 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 3 (rev 02)
00:1c.3 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 4 (rev 02)
00:1c.4 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 (rev 02)
00:1c.5 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 6 (rev 02)
00:1d.0 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 02)
00:1d.1 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 02)
00:1d.2 USB controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 02)
00:1d.7 USB controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 92)
00:1f.0 ISA bridge: Intel Corporation ICH9M-E LPC Interface Controller (rev 02)
00:1f.2 SATA controller: Intel Corporation 82801IBM/IEM (ICH9M/ICH9M-E) 4 port SATA Controller [AHCI mode] (rev 02)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 02)
01:00.0 VGA compatible controller: NVIDIA Corporation G94M [Quadro FX 2700M] (rev a1)
03:01.0 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev ba)
03:01.1 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 04)
03:01.2 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 21)
03:01.3 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter (rev 11)
03:01.4 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 11)
09:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5761e Gigabit Ethernet PCIe (rev 10)
0c:00.0 Network controller: Intel Corporation Ultimate N WiFi Link 5300
output of sensors, idle:
acpitz-virtual-0
Adapter: Virtual device
temp1: +45.5°C (crit = +107.0°C)
coretemp-isa-0000
Adapter: ISA adapter
Core 0: +51.0°C (high = +105.0°C, crit = +105.0°C)
Core 1: +51.0°C (high = +105.0°C, crit = +105.0°C)
Core 2: +48.0°C (high = +105.0°C, crit = +105.0°C)
Core 3: +46.0°C (high = +105.0°C, crit = +105.0°C)
output of sensors when I start interacting (light browsing, mail, chat):
acpitz-virtual-0
Adapter: Virtual device
temp1: +59.5°C (crit = +107.0°C)
coretemp-isa-0000
Adapter: ISA adapter
Core 0: +63.0°C (high = +105.0°C, crit = +105.0°C)
Core 1: +63.0°C (high = +105.0°C, crit = +105.0°C)
Core 2: +62.0°C (high = +105.0°C, crit = +105.0°C)
Core 3: +63.0°C (high = +105.0°C, crit = +105.0°C)
When I start the laptop, its CPU fan stays at its minimal speed only for 1 or 2 minutes, then increases its rotation speed to a second level. It reaches it maximal speed only under heavy load, when the CPU reaches >80-95°C. I would rather let the CPU run a bit hotter before the fan starts to blow: let's say the fan could enter its intermediary speed between 70°C and 85°C instead of 55-80°C, and blow at is its maximum speed beyond that.
I checked the Fan Speed Control wiki page, but lm-sensors is not able to show me the status of the fans. Any idea ?
Aurel.
PS: the temperature of the GPU is not reported by sensors, and nvidia-settings reports around 60°C. Its dedicated fan is very quiet.

aurelieng wrote:
Hi all,
I have a Dell Precision M6400 17" laptop. It runs really well on Arch, but is a bit noisy. It has always been noisy, btw, but I recently noticed that the CPU fan was blowing a lot of air even though the CPU temperature is lower than 70°C. I also have a macbook air, and its CPU runs at 70°C all the time, which seems to be normal. I would like my m6400 to behave similarly, and I'm sure someone here know how to change that
Hi aurelieng,
I'm in the same situation from at least 1 month ( INTEL CORE 2 EXTREME X9100, 3.06GHz with 8GB ram, one solid state disk 128 GB, and one sata disk 500GB)
My dell M6400 has dual boot: ubuntu and windows7. The fan works a lot and continuosly in both environment and this is the reason because I have doubt that the origin of the problem is in hardware problem?
output of sensors when I start interacting (light browsing, mail, chat):
acpitz-virtual-0
Adapter: Virtual device
temp1: +41.5°C (crit = +107.0°C)
coretemp-isa-0000
Adapter: ISA adapter
Core 0: +41.0°C (high = +105.0°C, crit = +105.0°C)
Core 1: +41.0°C (high = +105.0°C, crit = +105.0°C)
Last edited by ginard (2012-11-16 18:09:19)

Kernel_task high cpu usage, high fan speed, and low cpu tempterature

Hi,
I've noticed that a lot of people have been having trouble with the kernel_task process, but I couldn't quite find a situation similar to mine (most seem temperature related).
Here is the situation (15' MBP, mid-2010):
- on boot (while the apple logo is shown), the fans speed suddenly jumps, and stays there, even if the computer has been off for a while.
- boot takes a little over a minute, which is considerably slower than what I was used to before today
- when finally started-up, the activity monitors shows kernel_task using between 160-180% of the CPU!
- temperatures are shown to be around 30C, except for the mem controller at 40C (still very low temp), but the fan speed is arround 6000rpm for both fans.
- this happened out of nowhere, as I woke the mpb from sleep this morning.
Since then I've tried:
- multiple reboots
- install all updates
- uninstall flash player (some people where having trouble with that)
- empty the system cache with Onyx (reported as a cause of slow boot)
- reset PRAM
- reset SMC
- put some ice packs under the mpb to cool things even further!
And so far, nothing has worked! I've had this laptop for 1 year, and nothing had ever failed. I upgraded to lion a few weeks ago, and everything had been working fine since the upgrade. This really happened out of nowhere, and none of the many forums I have read could offer a solution, and cals to apple support do not seem to yield better results (though I scheduled a call with them at 9am this morning, we'll see).
Has anyone had a similar set of problems?
I appreciate any help or advice you may have!
Thanks!
-Sebastien

I have the same issue (2.66 2010 MBP Hi-Res Anti Glare.)
I took it to Apple Store Covent Garden, JUST within warranty.
18 days later my machine has a new Main Logic borad, heat sensors, top case, palm rest. etc.
I turned it on.
The fans kicked in. All processors at 50%, big ole kernal task.
I took it back, geniuses rest SMC and tested it under load and it was fine.
weirdly it failed diagnostics at first but then seemed fine
I came home. Fans kicked in...
I took it back. Diagnostics failed heat sensors again
Replaced logic board and heats sensors again, but more carefully this time just in case, tested again.
I took it home. FANS FANS FANS.
Last time I was in the store I was told my machine was fine and had been thoroughly tested.
In mac store, no fans.
I erased hard drive and clean installed Lion
FANS
I replaced hard drive with OCZ SSD, clean LION.
Fans
Software update
SMC
PRAM
permissions
Onyx complete clean/maintenace
FANS/CPU
switched back to Snow Leopard SSD
PRAM SMC ONYX etc.
FANS/CPU
replaced RAM, memtest-ed. fine, FANS
gonna try again but up to nearly 2 months of all my spare time trying to shut this thing up so I can sell it.

Fan speed and CPU temp

Hi There,
I have MBA 13'' Mid 2011.
I'm little bit concerened about Temp of my CPU which is 96°C, and Fan speed is around 6500rpm.
I can hear my fan all the time.
It was not like this always and i'm kind of sure that something is causing this.
I worked before with lots of apps open (itunes, photoshop, text editor, chrom, mail, parallels..) and fan and temp was not this high.
Is there way to find out what is causing this high usage?
Thanks in advanced

First execute a SMC reset:
http://support.apple.com/kb/HT3964
If no change, install istat menus.
http://bjango.com/mac/istatmenus/
Open Activity Monitor to ALL PROCESSES and CPU. Make certain that CPU displays values from high to low.
Post images of both istat menus and Activity Monitor whe the MBA has heated up.
Ciao.

GT70 Dragon Edition 2: Fan speed/heat issue

I have a problem with the fan speed on my GT70. The CPU and GPU gets hot (between 75-80 degrees celsius) but the fan does not speed up, while playing Fallout New Vegas. The fan speed is very low and makes no noise.
It does speed up when I play Metro Last Light (obviously more demanding game). I suppose the problem is with the CPU fan speed tables.
Is there any way to lower or set the desired/target temperature so the fan will speed up faster and keep the CPU and GPU temp lower?
I have already updated the firmware.

This is a tool made by a Notebook Review user named Dave Pearson. All thanks go to him and his hard work. I suggest more of you head over to Notebook Review website and check out the forums over there. There you will find your answers more quickly as there is a wealth of knowledgeable users and a community that works together to solve these issues.
http://www20.zippyshare.com/v/9165715/file.html
This tool will allow you to control the speed of the fan. This also works on the GT60s.

CPU heats up the FAN

There must be something on Kernel 2.6.30 and above, which makes PC heating up unnecessary. At the moment runing back to Ubuntu 9.04 with CPU temperature +48.0°C
On Arch or Ubuntu above Kernel 2.6.29, the heat of the CPU goes easily over +60°C which makes work on HP Compaq 6510b laptop impossible without noisy CPU fan.
I read about users writing the same problem, on different Distros. I stay back on Kernel 2.6.29 (Ubuntu 9.04) which works without CPU heat problem.
Any real work around on that problem is greatly appreciated

I have a simillar problem here. Installed Arch on my Christmas laptop, but under Arch the fan is spinning almost constantly. While in the preinstalled Vista it only spun up when the computer started doing something. I have not tested with other distros. I have cpufreq running and using the ondemand governor, but it only supports 1.2 and 1.3 (full speed) GHz. I don't know if 1.2 GHz is the lowest the CPU really can go and googling my CPU doesn't reveal much.
My infos:
/proc/cpuinfo:
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 23
model name : Genuine Intel(R) CPU U4100 @ 1.30GHz
stepping : 10
cpu MHz : 1200.000
cache size : 2048 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
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 lm constant
_tsc arch_perfmon pebs bts rep_good aperfmperf pni dtes64 monitor ds_cpl est tm2
ssse3 cx16 xtpr pdcm xsave lahf_lm
bogomips : 2594.55
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 23
model name : Genuine Intel(R) CPU U4100 @ 1.30GHz
stepping : 10
cpu MHz : 1200.000
cache size : 2048 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
apicid : 1
initial apicid : 1
fpu : yes
fpu_exception : yes
cpuid level : 13
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 lm constant
_tsc arch_perfmon pebs bts rep_good aperfmperf pni dtes64 monitor ds_cpl est tm2
ssse3 cx16 xtpr pdcm xsave lahf_lm
bogomips : 2594.58
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
/proc/acpi/processor/CPU0/info
processor id: 0
acpi id: 0
bus mastering control: no
power management: yes
throttling control: no
limit interface: no
uname -a
Linux fury 2.6.32-ARCH #1 SMP PREEMPT Sat Dec 26 09:02:58 CET 2009 x86_64 Genuine Intel(R) CPU U4100 @ 1.30GHz GenuineIntel GNU/Linux
sensors: (the machine has been sitting idle on my table for a few hours now, with loadavg of 0.00, 0.00, 0.00):
coretemp-isa-0000
Adapter: ISA adapter
Core 0: +50.0°C (high = +105.0°C, crit = +105.0°C)
coretemp-isa-0001
Adapter: ISA adapter
Core 1: +50.0°C (high = +105.0°C, crit = +105.0°C)

Satellite C855 - Average CPU temperature and fan speed

Hello!
I've had this toshiba Satellite C855 since march this year. it's only recently that the CPU temp and Fan speeds have been worrying me.
When I'm not playing games or doing a livestream my CPU temp stays around 35-40% with the fanspeed at steady 50% or not on at all due to it been cool.
When I do play games however the fanspeed is going up to around 66-68% with the CPU been around 55-60%
I was wondering if this is normal? or do I need to clean it out by taking it apart. if it is the second option then I am worried since I do not want to damage anything inside. plus I am not that great with the inner workings of a computer.
Any help or information would be very appreciated thanks.

In my opinion there is no reason for panic. T is logic that under stress CPU activity is higher and CPU produces more heat. Notebook must be cooled down properly so sensors that control cooling fans register growing temperature and cooling fans will run on higher speed.
There is no reason for cleaning. And one day if that must be done please dont do it alone. You are not authorized for doing this.

Excessive GPU/CPU heat - fan speed

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