im getting a problem, i have alienware m14xr2 with i7 cpu, using linux (right now im using ubuntu 18.04) also manjaro, i have a problem on heavy load my notebook is shutting down due to overheating because when the temp is for example 90c my fans are running at 4200 rpm and is not sufficient to reduce the temp and when my notebook get 105c shutdown.  in windows this not happen because the fan at that temp run at like 7200 rpm, my fan is 10.4CFM, i check my fan speed using lm-sensors and i8kmod module for dell in linux and the max speed is only 4200  I try to manipulate it manually using fan control and i8kmod trying to set the fan speed to 7200 rpm but it don't take my settings.  I already try with other board, and with new thermal paste but the same, in windows this not happens, windows is handling the fan and cpu temperature fine.  Thanks.
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How can I control the computer's fan speed?  On Windows there is a wonderful program called .
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I have an HP laptop with with a Core-i5 450m processor and an ATI Radeon 5650 1GB graphics card. When I played crysis warhead on my system its temprature went up to 82° c. Is it safe to play games up to this temperature level?
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I'm running a few VMs, and suddenly I noticed my CPU fan was spinning louder than usual. I tracked it down to Windows 8 doing some "automatic maintenance":      How can I turn this completely off? I found a way to set the time, but not a way to turn it off completely.
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How to check battery temperature? How do I know the normal temperature of it?  My OS is Ubuntu, and my laptop is Lenovo G470.  Output of acpi -t:  Thermal 0: ok, 0.0 degrees C
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My PC (Lenovo Ideapad z580) is overheating while running Ubuntu GNOME 16.04 LTS.  $ uname -a Linux Mahadev 4.4.0-72-generic #93-Ubuntu SMP Fri Mar 31 14:07:41 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux  $ lspci -nnk|grep -A2 VGA 00:02.0 VGA compatible controller [0300]: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09)   Subsystem: Lenovo 3rd Gen Core processor Graphics Controller [17aa:3977]   Kernel driver in use: i915   $ sensors acpitz-virtual-0 Adapter: Virtual device temp1:        +52.0°C  (crit = +104.0°C)  coretemp-isa-0000 Adapter: ISA adapter Physical id 0:  +54.0°C  (high = +72.0°C, crit = +90.0°C) Core 0:         +54.0°C  (high = +72.0°C, crit = +90.0°C) Core 1:         +54.0°C  (high = +72.0°C, crit = +90.0°C)  update vivek@Mahadev:~$ stress -t 300 -c $(getconf _NPROCESSORS_ONLN) &amp;&amp;  sensors stress: info: [4408] dispatching hogs: 4 cpu, 0 io, 0 vm, 0 hdd stress: info: [4408] successful run completed in 300s acpitz-virtual-0 Adapter: Virtual device temp1:        +73.0°C  (crit = +104.0°C)  coretemp-isa-0000 Adapter: ISA adapter Physical id 0:  +72.0°C  (high = +72.0°C, crit = +90.0°C) Core 0:         +69.0°C  (high = +72.0°C, crit = +90.0°C) Core 1:         +72.0°C  (high = +72.0°C, crit = +90.0°C)  update     vivek@Mahadev:~$ sudo lshw -C cpu     [sudo] password for vivek:    *-cpu                             description: CPU         product: Intel(R) Core(TM) i3-3110M CPU @ 2.40GHz         vendor: Intel Corp.        physical id: 0        bus info: cpu@0        version: Intel(R) Core(TM) i3-3110M CPU @ 2.40GHz        serial: To Be Filled By O.E.M.        slot: CPU Socket - U3E1        size: 1302MHz        capacity: 2400MHz        width: 64 bits        clock: 100MHz        capabilities: x86-64 fpu fpu_exception wp 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 constant_tsc arch_perfmon  pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni    pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm pcid    sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer xsave avx f16c lahf_lm    epb tpr_shadow vnmi flexpriority ept vpid fsgsbase smep erms xsaveopt     dtherm arat pln pts cpufreq           configuration: cores=2 enabledcores=2 threads=4  Update This time I edited the sensors , htop command result in image. It's getting overheated, my laptop is getting hang cause of overheating, please watch and reply. Thanks.
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My friends say that it should actually improve the cooling since there is more air available to it, especially the CPU fan. I have to admit that it at least looks like it would stay cooler.  I disagree. It should prevent the case fans from effectively running fast-moving air across the components, right? As for the CPU fan, the air around it isn't being refreshed as much with the case open, I think, so it's getting hotter, so the CPU cooling isn't as effective. Not that it would kill the computer, but it seems to me that it would make the cooling less efficient.  Who's right? This is about settling an argument, not trying to solve a real problem. The computer in question is a custom-made "1337 gaming b0x0r r!g" (you know the type) school computer with like 8 fans that's being used right now to make graphene using a LightScribe DVD burner (not a heavy task), and its case is open. The key here is that it has a good-quality case, and we can't try heat tests on it.
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Is there any tool that helps to determine the weakest link of my current laptop hardware specification? Any online guide to help me choose nice balanced configuration for the new laptop?    I need to find the answers:  a) which component should be invested to increase overall performance the most? CPU? GPU? RAM?  b) which component may decrease overall performance and work as a bottleneck for the specific configuration?    The question is general and regards both to validating the current hardware usage (and its possible bottlenecks) and estimating the performance (and avoiding possible issues) of specs I'm going to choose and buy.    P.S. For the specific laptop I need to replace, the following software will be in use:    Windows antivirus, firewall, dropbox service running in the background mail app + web browser with a dozen or so tabs open from time to time: libreoffice apps, movies, games (both online and installed).
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So I have a Compaq CQ50-215CA and my sister was using her laptop on her bed and I was just using it quickly to check my email. The surface of the laptop was really hot and I opened Speccy to see that the CPU and GPU temperature was 96 C. A couple months ago, my laptop was on the desk without a cooling pad and I was playing a game. Using GPU-Z back then, I had a reading of 104 C. Even with a cooling pad on a desk, running several processes/games keeps me around 88-90 C.  Is this normal for a laptop and what's the highest temperature the internals can handle? Besides a cooling pad, are there any other more effective ways of cooling a laptop?
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I have a laptop, which was running Windows 8.1 x64 without any problems. Now with Windows 10 x64 installed, Task Manager constantly shows unusual CPU usage by "System" and "System interrupts". To solve this, I already tried the following, without success:   Disabling and uninstalling all non-essential drivers. Installing newer drivers than the ones that were automagically installed (if available). Disabling/enabling fast boot option. Disabling all of the non-essential services. Sysprep. Resetting BIOS to defaults and various combinations of settings. Flashing BIOS to the latest available version. Clean install from the same media that I use for other PCs. Installing all of the updates offered in Windows Update to this day. Windows Performance Recorder / Analyzer.   I'm not very familiar with Windows Performance Analyzer, so I'm hoping someone here can point me in the right direction - what exactly should I look for, to figure out which device/driver is the culprit. Or, if there's any other approach to figuring out this problem?  For the brave souls, here's my  and a screenshot of the problem:
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My Macbook Air 13", Mid 2011, got heated and is slow in working. I noticed that CPU Die temperature reaches 90° C, is that normal?  I've changed my fan recently but still get this issue.
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I just build myself a new system with a Intel I7 860 CPU. When loading it using a single threaded application like Super PI, CPU-Z shows 2.933Ghz as speed. Now I understood that the I7 goes into turbo boost mode up to 3.46GHz for a single core.   How can I check that? Is there a utility to monitor CPU speed per core?
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I'm trying to change the cpu frequency on my laptop (running Linux), and not having any success. Here are some details:    # uname -a Linux yoga 3.12.21-gentoo-r1 #4 SMP Thu Jul 10 17:32:31 HKT 2014 x86_64 Intel(R) Core(TM) i5-3317U CPU @ 1.70GHz GenuineIntel GNU/Linux  # cpufreq-info cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009 Report errors and bugs to cpufreq@vger.kernel.org, please. analyzing CPU 0:   driver: intel_pstate   CPUs which run at the same hardware frequency: 0   CPUs which need to have their frequency coordinated by software: 0   maximum transition latency: 0.97 ms.   hardware limits: 800 MHz - 2.60 GHz   available cpufreq governors: performance, powersave   current policy: frequency should be within 800 MHz and 2.60 GHz.                   The governor "powersave" may decide which speed to use                   within this range.   current CPU frequency is 2.42 GHz (asserted by call to hardware). (similar information for cpus 1, 2 and 3)  # cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors performance powersave   I initially had the userspace governor built into the kernel, but then I also tried building it as a module (with the same results); it was loaded while running the above commands (and I couldn't find any system messages when loading it):  # lsmod Module                  Size  Used by cpufreq_userspace       1525  0 (some other modules)   And here are the commands I tried for changing the frequency:  # cpufreq-set -f 800MHz Error setting new values. Common errors: - Do you have proper administration rights? (super-user?) - Is the governor you requested available and modprobed? - Trying to set an invalid policy? - Trying to set a specific frequency, but userspace governor is not available,    for example because of hardware which cannot be set to a specific frequency    or because the userspace governor isn't loaded?  # cpufreq-set -g userspace   Error setting new values. Common errors: - Do you have proper administration rights? (super-user?) - Is the governor you requested available and modprobed? - Trying to set an invalid policy? - Trying to set a specific frequency, but userspace governor is not available,    for example because of hardware which cannot be set to a specific frequency    or because the userspace governor isn't loaded?   Any ideas?
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I'm using:   Alienware M14xR2 laptop running Ubuntu 14.04 2 * DELL U2412M monitors attached via HDMI and Mini Display Port Optimus graphics (Intel + nVidia GeForce GT 650M) running with nvidea-340 and nvidia-prime, with Prime setup in nvidia-settings GUI to use the NVidia GPU built-in laptop monitor disabled   Unfortunately, the monitors only work successfully in the default mirrored setup - I have the following issues trying to get a dual external screen extended desktop to work:   nvidia-settings GUI can only see one monitor on the X Server Display Config page. System Display GUI can see both displays but can only mirror the displays successfully. By fiddling with Display GUI and ARandR, I temporarily managed to get an extended desktop working, but NVidia GUI still only sees one of the monitors and if I try to reboot with 2 monitors attached, the GUI is totally glitched and unusable after login. During boot, the system just uses the left monitor (via HDMI i/f) for display, so I presume this is treated as the primary display. However, after boot, it appears the system switches to using the Display Port for the primary display and the system will not let me have the Ubuntu launcher only on the left (HDMI) display. The only options that work are for having the launcher on both or just on the right (Display Port) monitor. I tried to forcefully fix the issue with the primary monitor incorrectly being set to the right monitor by changing the primary monitor switch in ~/.config/monitors.xml, however this does not work and causes both monitors to appear at strange resolutions and glitch badly with uncoordinated mouse input.   Running  /usr/lib/nvidia-340/bin/nvidia-xconfig --query-gpu-info gives  Number of GPUs: 1  GPU #0:   Name      : GeForce GT 650M   UUID      : GPU-...   PCI BusID : PCI:1:0:0    Number of Display Devices: 1    Display Device 0 (DFP-0):       EDID Name             : DELL U2412M       Minimum HorizSync     : 30.000 kHz       Maximum HorizSync     : 83.000 kHz       Minimum VertRefresh   : 50 Hz       Maximum VertRefresh   : 61 Hz       Maximum PixelClock    : 170.000 MHz       Maximum Width         : 1920 pixels       Maximum Height        : 1200 pixels       Preferred Width       : 1920 pixels       Preferred Height      : 1200 pixels       Preferred VertRefresh : 60 Hz       Physical Width        : 520 mm       Physical Height       : 320 mm   Running xrandr --query gives  Screen 0: minimum 8 x 8, current 3120 x 1920, maximum 16384 x 16384 DP-0 connected primary 1200x1920+1920+0 left (normal left inverted right x axis y axis) 518mm x 324mm    1920x1200      60.0*+    ... DP-1 disconnected (normal left inverted right x axis y axis) LVDS1 connected    1600x900       60.0 +   40.0      ... DP1 disconnected DP2 disconnected HDMI1 connected 1920x1200+0+0 518mm x 324mm    1920x1200      60.0*+    ... HDMI2 disconnected VGA1 disconnected VIRTUAL1 disconnected   Running lspci | grep VGA gives     00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09)   01:00.0 VGA compatible controller: NVIDIA Corporation GK107M [GeForce GT 650M] (rev a1)   My xorg.conf is almost empty but I believe 14.04 automatically detects those settings.
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I've installed Ubuntu 11.10 on a Dell Inspiron N5010. It gets too hot and is automatically shutdown. Can anybody suggest why this is happening and how to fix it?  The application is use the most often are:   Eclipse with android plugin Banshee player GIMP Wine   The output of lsmod is:  Module                 Size   Used by bnep                   17923  2  rfcomm                 38408  8  pci_stub               12550  1  vboxpci                22882  0  vboxnetadp             13328  0  vboxnetflt             27211  0  vboxdrv               251814  3 vboxpci,vboxnetadp,vboxnetflt parport_pc             32114  0  ppdev                  12849  0  binfmt_misc            17292  1  joydev                 17393  0  btusb                  18160  2  bluetooth             148839  23 bnep,rfcomm,btusb snd_hda_codec_hdmi     31426  1  snd_hda_codec_idt      60049  1  arc4                   12473  2  dell_wmi               12601  0  sparse_keymap          13658  1 dell_wmi uvcvideo               67271  0  dell_laptop            13519  0  dcdbas                 14098  1 dell_laptop videodev               85626  1 uvcvideo snd_hda_intel          28358  2  snd_hda_codec          91754  3 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_intel snd_hwdep              13276  1 snd_hda_codec snd_pcm                80468  3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec snd_seq_midi           13132  0  snd_rawmidi            25241  1 snd_seq_midi snd_seq_midi_event     14475  1 snd_seq_midi snd_seq                51567  2 snd_seq_midi,snd_seq_midi_event snd_timer              28932  2 snd_pcm,snd_seq intel_ips              17753  0  snd_seq_device         14172  3 snd_seq_midi,snd_rawmidi,snd_seq psmouse                63474  0  serio_raw              12990  0  iwlagn                273937  0  mac80211              393459  1 iwlagn snd                    55902  14 snd_hda_codec_hdmi,snd_hda_codec_idt,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device cfg80211              172392  2 iwlagn,mac80211 i915                  505143  8  soundcore              12600  1 snd snd_page_alloc         14108  2 snd_hda_intel,snd_pcm wmi                    18744  1 dell_wmi mei                    36466  0  drm_kms_helper         32889  1 i915 drm                   196322  4 i915,drm_kms_helper i2c_algo_bit           13199  1 i915 video                  18908  1 i915 lp                     17455  0  parport                40930  3 parport_pc,ppdev,lp usbhid                 41905  0  hid                    77367  1 usbhid ums_realtek            13096  0  usb_storage            44173  1 ums_realtek uas                    17699  0  ahci                   21634  4  libahci                25761  1 ahci r8169                  47200  0
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My computer is playing some strange joke at me, and I'm at a loss.  Everybody knows that hot temperatures causes many components to become unstable and even cause damage. When I built this machine, I was careful to do a bunch of experiments with different airflow configurations, with CPU-and-GPU intensive benchmarks running, and measuring the temperature at different points to find the best configuration.  Generally, the internal temperature of this machine is very close to ambient temperature (with 2 exceptions: the GPU always runs ~10°C above ambient, and the CPU goes to at most ~12°C above ambient when running CPU-intensive applications).  Now comes the problem: at really cold mornings. At cold mornings (~10°C (50°F) or below), the system shows really strange general instability. Beeps from the BIOS, the operating system displays strange messages about memory corruption and PCI devices that failed to initialize, and then, everything hangs. The computer hangs to the point that all USB devices turn of. Hitting the Reset button blanks the screen but the mainboard fails to proceed to the boot.  I never thought that low temperatures could cause computer instability. And 10°C is not that cold, it is still within operating temperatures of all components as far as I checked.  I'm quite sure it is related with the temperature. There were too many cold and warm mornings that demonstrated that the problem only showed in the cold ones. I'm working around this problem by letting the computer sit at the GRUB menu for some 5-10 minutes before letting the OS start, or blowing hot air inside the case if I'm in a hurry.  I don't know what should I approach next to find the source of this problem. Since it is difficult to reproduce (I need a cold morning, and the computer must be cooled down (powered off for many hours)), I need to plan ahead the experiment, since it stabilizes after a few minutes on.  Machine is an ASUS P5VDC-X equipped with Intel P4 64-bit 3GHz, 2GB of DDR2 RAM, a 500W PSU and an nVidia GeForce 9600GT. Everything else was already disconnected/removed before and the problem persisted, so the problem should be in one of these remaining parts.  Any help is appreciated!
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Apparently my CPU or GPU overheats when Blender renders more than a few minutes.  The computer suddenly powers down, taking down all running apps, email I'm writing, etc.  This is almost never a problem with still scenes, which finish soon enough, but often with animation renders.    The problem occurs with either Cycles or BI renders.  I'm running on a custom-built quad core 64-bit linux desktop system.  (I'm not the one who built it. I am  a knuckle-dragging caveman with hardware issues.) (Yes, all the fans are blowing and dust has been cleaned off.)  So far the only way to prevent this for now is to choose in camera properties: Performance, Threads, Fixed, 1.     Someday, I'll get better hardware, but in the meantime, I suspect Blender could run indefinitely, even with multiple threads, if I could make it pause for perhaps one minute between each frame when animating, just to cool down. How to make this happen?  At least, a way to run an arbitrary Python script between frames, or once per minute during any rendering. Such a script could contain a sleep stat  Even better, if Blender could throttle its rendering effort based on readings of the CPU temperature sensor.   Is that possible?  UPDATE: I've nearly forgotten about this issue, since writing a quick Python script to watch the CPU temperature, sending SIGSTOP and SIGCONT as gandalf3 describes. Zero crashes ever since. I reboot my machine once or twice per year for kernel upgrades, otherwise it's 100% up.  ANOTHER UPDATE: I took the machine apart, popped off the CPU heatsink, and applied fresh thermal paste.  Ever since, the CPU temperature has been running something like 30deg (C) cooler all the time.  Zero shutdowns, and I don't use the Python script any more unless I'm feeling paranoid.
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Is there a way to set an alarm or something for when my Ubuntu computer is about to overheat?   My computer has some temperature issues, so when it's about to overheat I'd like to turn on an external fan.