CPU stands for Central Processing Unit, and is the main processing chip used in every computer. Brands include Intel, AMD and ARM. CPUs are commonly available in 32- and 64-bit, and come in a variety of frequencies or with multiple cores.

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27 views

Intel graphics driver installer, now the CPU fan is rarely quiet

I have an Optimus chipset: Intel HD 4000 (i7-3635QM CPU) Geforce 640m I don't care about the NVIDIA card, so I didn't try to install any proprietary drivers for it. So: I was having a ...
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0answers
8 views

Disable processor speed changes on AC vs battery [on hold]

My Toshiba Satellite L300 laptop freezes when I plug in the AC power cord. The problem is, whenever the processor goes in power management or downclocks, the system freezes and shows colorful ...
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1answer
460 views

Much lower temps on Ubuntu [closed]

I've noticed that CPU temps and GPU on my laptop are much lower on Ubuntu than Windows 7. On Windows temperature is like 50 celsius to 58 and on Ubuntu 40 to 50 max. Cooling is also much cooler on ...
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1answer
40 views

Will Ubuntu continue working properly after a new motherboard/CPU is installed?

So, I installed the new motherboard and new CPU. Then powered on the PC. The bootstrapping went fine and all seems to work. But I have doubts. Do I need to do something?
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2answers
52 views

Is this CPU architecture information from lscpu normal?

With command lscpu I have output as follows: Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 4 On-line CPU(s) list: ...
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2answers
139 views

I want to find out if my Lenovo laptop has a Sandy or Ivy Bridge

Is there a command or a register to find this information on my laptop? I need to know it before I install Intel pstate. Thanks. PS This is the result from the command from ...
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0answers
27 views

Getting Linux to downclock and lower the V-core of my CPU at idle

So when I boot into my Windows 8 partition, Windows automatically downclocks my CPU and lowers it's V-core so that the idle temps of my i5-4570 CPU go down to 25 C. Now on Ubuntu on the other hand, ...
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0answers
17 views

How do I check the current frequency of my CPU? [duplicate]

I've been trying to find some information on this but seem to only find things similar but not exactly the same. I'm using Xubuntu on my notebook with an core i7 processor which does hyper-threading ...
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1answer
42 views

Respect BIOS-specified CPU speed without kernel patches, etc. in 14.04

I've got a machine running "in the wild" in a very hot environment running an AMD chip which is overheating. I don't have physical access to the machine, but I have had someone change the CPU clock ...
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1answer
57 views

How to check the cpu temperatures core by core?

I have a Phenom X3-8450e which has a total of 3 cores. But when i ran "sensors" on a terminal this is what i get. user@PC ~ $ sensors atk0110-acpi-0 Adapter: ACPI interface ...
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1answer
90 views

Laptop fan speed too low when not docked

I'm using Ubuntu 14.04 on my laptop and things are great except that it gets quite hot sometimes. I'm using sensors (lm-sensors) to report temperature and fan speed. I run a Thinkpad T430s with Ivy ...
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1answer
51 views

Is my CPU-Temperature OK?

I just brought my Laptop to a Service-Center to get it cleaned. Now under normal use (using apt-get, watching videos, web-browsing...) my cpu-temp is between 55-70°C. If I put it under Stress with ...
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1answer
48 views

Which 14.04 version should I install? [duplicate]

My specific question is that I have 3.9GB of ram, but I don't have an AMD processor. I have the Intel i5. Do I install i386, or the AMD x64 version of 14.04? Let me know if there are other specifics I ...
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1answer
304 views

Ubuntu 14.04 Kernel Update 3.13.0-30.55 made my Laptop CPU gets overheated

I just received an update to the linux kernel of Ubuntu 14.04 from 3.13.0-30.54 to 3.13.0-30.55. After I upgrade it the CPU on my laptop is around 70 to 80 Degree Celsius. while on the previous kernel ...
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1answer
38 views

Lots of Memory and CPU being used on nothing

I noticed over the last week or so my computer is using a lot of CPU and Memory when nothing is obviously running (even after rebooting). With only my browser open it's using 20% CPU, 4.0 GB Memory ...
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0answers
54 views

Fan is always running (CPU)

Hp mini 1000 Using gnome shell 3.4.x When I installed this os the fan did not always run and it seems after updating now the fan has and is always running... Whether plugged in or not... Now its ...
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0answers
108 views

xubuntu: compiz using 100%+ cpu

I seem to be experiencing an issue with Compiz in terms of cpu usage. The only thing I've been doing differently (been running this system for a month or two with no issues) is I have been running ...
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1answer
71 views

How to solve the problem of high CPU load?

After installing Macubuntu pack processor became heavily loaded, I replaced Ubuntu 64-bit with Xubuntu 64-bit, but the processor is still heavily loaded when performing simple actions (open file ...
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1answer
89 views

What is the 'normal' CPU temp?

What is the 'normal' CPU temp should be? My CPU temperature normally (when the system is idle) remains around 60C and often jumps up to 80c or more. dino@mika:~$ sensors acpitz-virtual-0 Adapter: ...
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2answers
2k views

Run program with only 1 CPU core

I'm trying to run a bunch of scripts related to a gaming server in Terminator. The only problem is when I do this, Terminator detects all my CPU cores and the PC lags. Is there any way to start it up ...
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0answers
94 views

Ubuntu high CPU usage

I have a Acer Aspire V5-552G laptop, all seems to work fine but some software, in particular games and graphics are over using the cpu. Such as Cheese, here is the top output: PID USER PR NI ...
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1answer
175 views

How do I know my fan is working in Ubuntu

I just bought a brand new netbook and am worried the fan isn't working properly. lm-sensors does not detect a fan, I can't hear a fan, and can't feel air blowing out of the fan area. The netbook is ...
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1answer
244 views

Ubuntu CPU Fan at 2200 RPM and CPU top at 90°C

I have a problem with my CPU heat. I'm running Ubuntu 14.04 (64bit) and I have issues with the cooling. I know it might be a hardware issue, but I've checked, the fan is running and in my GUI I use ...
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0answers
22 views

nautilus consuming too much cpu for retrieving thumbnails for applications

some screen shots about the problem Now I'm killing the program. The output in terminal for nautilus is GLib-GIO-Message: Using the 'memory' GSettings backend. Your settings will not be saved or ...
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1answer
31 views

Whenever I install Ubuntu it says please use a kernel appropriate for your CPU

Whenever I try to install Ubuntu it says the kernel is not appropriate for my CPU. Or tell me an OS that's Minecraft capable and for an i686 processor.
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1answer
276 views

ubuntu 14.04 - only performance and powersave governor available (i5 4.gen)

After updating my ubuntu 13.10 to 14.04 there only these to govenors available for my cpu, instead of additionally ondemand and conservative. cat ...
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1answer
611 views

Ubuntu 14.04 Slow, High CPU Usage

I experienced CPU strange behavior after installing Ubuntu 14.04, at 5 or 10 minutes, CPU usage suddenly increased about 50%, that's really slow my laptop down (Ubuntu 13.10 worked fine by the way) ...
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0answers
302 views

High CPU load - Ubuntu 14.04

I noticed that sometimes when browsing (with other processes in the background), I get very high CPU load for the browser process (over 100%) and the computer becomes really slow. I tried switching ...
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0answers
124 views

Ubuntu 14.04 lost cores on AMD CPU

It seems that I have a problem. Installed 14.04 a few days ago, everything was smooth sailing until yesterday it wouldn't boot up. Recovery mode says that CPU's 1-6 don't respond. After 7 it moves ...
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1answer
356 views

CPU temperature is high on Ubuntu

So I have a machine which has both latest *Ubuntu and Windows 8 on it. On windows 8 my CPU temp is roughtly 26 degrees when idle. Now when I boot into Ubuntu, CPU temperature is suddenly 43 degrees ...
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1answer
484 views

CPU Fan always on high speed after upgrade to 14.04 [duplicate]

cpu fan always on high speed after update from 13.10 to 14.04 MB Asus P5G41T-M LX V2 It was working nice on 13.10 Output of sensors: atk0110-acpi-0 Adapter: ACPI interface Vcore Voltage: ...
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0answers
60 views

One of my two cores suddenly flatlines at zero percent

I've been using Ubuntu for about three months, and twice now the first core of my dual-core laptop suddenly flatlined at zero percent for no apparent reason, while the second one seemed unaffected. ...
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1answer
74 views

System profiler gives incorrect cpu speed?

When I check the System profiler and Benchmark application it gives me incorrect cpu speeds and the speeds tend to vary every time I run the application. Ranging from 1900 to 3900 (3900MHz is what I ...
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235 views

Critical temperature reached for thermal thermal_zone0

I have my laptop (Dell Vostro 3350) overheating using Ubuntu (starting from 11.04 upto 14.04 distributives). In syslog I found the record when shutdown is occured: May 21 11:43:43 mobiled2 kernel: ...
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1answer
124 views

Visual CPU Indicator for Trusty Tahr (with dual/multi-core support)?

A quick finger exercise with google returned the following: Cpufreq Indicator fossfreedom's fork of System Monitor Indicator, probably looking like this (non-visual) neither of which seem to be ...
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1answer
40 views

New processor woes

my motherboard is an ECS c51gm-m and the processor im trying to upgrade to is an AMD Athlon 64 X2 Dual-Core 5000+ 2.6 GHz Processor with 1024KB L2 Cache and 64-Watt Socket AM2 (ADO5000DSWOF) by AMD ...
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0answers
94 views

Cannot load acpi_cpufreq module [closed]

I have been trying hard recently to scale my CPU Frequency from 1GHz (the current frequency) to 1.67 GHz (the maximum frequency) but it won't let me as when I execute sudo cpufreq-set -u 1.67GHz it ...
2
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0answers
377 views

Ubuntu CPU load

I'm new to Linux world and I have a problem with my fresh installation of Ubuntu 14.10 64-bit. My processor is Intel® Pentium(R) D CPU 2.80GHz × 2 with 4 GB of ram and GeForce 8600 GT/PCIe/SSE2. When ...
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1answer
102 views

Squeeking noise issue with Asus laptop. Found working solution for Windows, now how to do this on Ubunutu?

My Asus laptop makes a high pitch squeeking noise/sound. It turns out that is has something to do with the CPU and its power saving settings. I have my laptop on dual-boot with Windows 7 and Ubuntu ...
2
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0answers
102 views

Unable to get a temperature reading from CPU [closed]

Following instructions over here, I tried to get something running to show the temperature of my AMD A6 6400K. Unfortunately, the output I get is the following: TurionPowerControl 0.44-rc2 (export) ...
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0answers
63 views

CPU fan not working in acer gateway ne56r

My laptop fan was not running in ubuntu 14.04 and hence it become heated up easily. Kindly help to get a solution for to get my laptop fan running. In windows i never had these kind of issues
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214 views

NodeJS Hangs on Ubuntu 14.04 Boot [Big CPU & Memory usage]

Node somehow hangs on Ubuntu 14.04 boot. It uses lots of CPU and RAM (Checked with Terminal -> top). I need to have root permissions to kill it and it doesn't work after the first time. Had to spam ...
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0answers
106 views

Asus G75VW cpu runs hot up to 70c, using Ubuntu

Any idea at all would be helpful. Specifications: Brand: ASUS G75 Series Model: G75VW-BBK5 CPU: Intel Core i7-3610QM 2.3GHz Screen: 17.3" Memory: 32GB DDR3 Hard Disk: 120 ssd 1TB Optical Drive: ...
3
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1answer
325 views

kworker taking 100% of one core

I updated from ubuntu 13.10 to 14.04. I have a quad core, and one core is pegged at 100% usage because of kworker. I know that kworker generally is doing things on behalf of the kernel, but I don't ...
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504 views

Unreliable CPU thermal sensor; monitoring disabled Ubuntu 14.04

I installed Ubuntu 14.04 on my PC and it shows something like that when i boot: unreliable CPU thermal sensor; monitoring disabled Is there something wrong with my CPU or is it sensor fault ?
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2answers
132 views

get cpu usage in command

I want get cpu usage. I used this command : top -bn1 | grep "Cpu(s)" | sed "s/.*, *\([0-9.]*\)%* id.*/\1/" | awk '{print 100 - $1}' But return 100%. I dont know what to do.
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41 views

Amilo V8210 cpu fan speed issue

I got a Fujitsu-Siemens Amilo Pro V8210 with Intel® Core™2 CPU T5500 @ 1.66GHz × 2 and have installed Ubuntu 13.10. CPU fan issue as many others. Checked the BIOS settings, nada. BIOS is updated. ...
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2answers
13k views

CPU temperature monitor for 14.04LTS?

Is there a way to configure psensor so the temperatures read out in real time in the panel so it could be read at a glance? So far, in order to read the temperature I have to click on the applet ...
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0answers
87 views

i7 temperature too high

I use Ubuntu 14.04 and a notebook with i7 cpu. The problem is that I've 50° on cpu in idle, while in Windows I've 40°. Can you tell me why I've this problem? I've also installed nvidia proper ...
0
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1answer
68 views

Battery consume

i know this is a frequently asked question. After trying win 8.1 and latest opensuse i feel ubuntu 13.10 to consume much power. Lenovo B590 notebook with 1TB 5200rpm hdd, 8 gigs of ram, i5 2.5GHz ...