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.

learn more… | top users | synonyms (1)

2
votes
2answers
453 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 ...
0
votes
0answers
55 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, ...
0
votes
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 ...
0
votes
1answer
86 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 ...
-1
votes
1answer
98 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 ...
1
vote
1answer
167 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 ...
-1
votes
2answers
36 views

Ubuntu Installation Intel [duplicate]

I would like to install Ubuntu 14.04 but i saw on the file i downloaded that is for AMD 64 bit processors. My Pc-Desktop has an Intel Core i7 64bit proseccor and i was wondering if is it ok for my PC ...
-1
votes
2answers
64 views

32-bit OS on a 64 bit processor [duplicate]

I have a laptop with a 64-bit processor, but by accident i installed the 32-bit version of Ubuntu 14.04. i can always back my data up, and re-install Ubuntu, but i want to know if using 32-bit will be ...
0
votes
1answer
98 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 ...
0
votes
1answer
66 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 ...
0
votes
1answer
445 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 ...
0
votes
1answer
64 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 ...
0
votes
0answers
65 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 ...
1
vote
0answers
274 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 ...
0
votes
1answer
100 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 ...
0
votes
1answer
426 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: ...
19
votes
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 ...
0
votes
0answers
258 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 ...
1
vote
1answer
372 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 ...
3
votes
1answer
355 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 ...
0
votes
0answers
28 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 ...
0
votes
1answer
47 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.
3
votes
1answer
1k 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 ...
0
votes
1answer
2k 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) ...
0
votes
0answers
818 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 ...
1
vote
0answers
227 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 ...
0
votes
1answer
592 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 ...
0
votes
1answer
1k 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: ...
3
votes
0answers
74 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. ...
0
votes
1answer
115 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 ...
0
votes
0answers
537 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: ...
0
votes
2answers
23 views

Changing Ubuntu version

So, my friend lent me his Ubuntu 12.10 boot CD, and it's the 64-bit version, but my processor is 32-bit. So, after installing, I was wondering if there's a way to install 14.04 32-bit from inside the ...
0
votes
0answers
58 views

Toshiba Satellite integrated graphics

Well, I am using Ubuntu 14.04 in my Toshiba Satellite L750-1GN, which come with an Intel i5 2430m. The processor has an integrated graphics card, the hd 3000. But both in windows and linux this "card" ...
2
votes
1answer
204 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 ...
0
votes
1answer
51 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 ...
1
vote
0answers
186 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 ...
3
votes
0answers
1k 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 ...
4
votes
1answer
138 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
votes
0answers
146 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) ...
1
vote
0answers
109 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
1
vote
0answers
227 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 ...
0
votes
0answers
190 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
votes
1answer
549 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 ...
0
votes
0answers
912 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 ?
-1
votes
2answers
1k 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.
1
vote
0answers
63 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. ...
6
votes
2answers
29k 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 ...
0
votes
0answers
98 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
votes
1answer
87 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 ...
0
votes
0answers
40 views

command not found when trying to set governor

In response to my questioning here: How to really check current cpu Hz? Sylvain Pineau told me to do this command to change cpu governor: echo "powersave" ...