A CPU (Central Processing Unit) is the chip responsible for actually "doing" most the instructions given to a computer.

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How does “CPU Thermal Throttle” work?

I have an AMD FX-6300 CPU and an ASRock 970 Pro3 R2.0 motherboard with an American Megatrends version P1.0 BIOS. The BIOS has an option for CPU Thermal Throttling which can be disabled, can be set to ...
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1answer
711 views

Motherboard (chipset) for i7 950

I have an i7 950 and need a board for it, i7 is LGA 1366 and seems it is hard to find a mobo for it. Would socket 1150 work for i7 950? or socket has to be LGA 1366? any advise?
0
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1answer
60 views

Is it a big downside for a cpu to not report the L1 Cache?

I am reading information for a processorAMD FX-8320 Eight-Core My primary question is why the L1 cache is not in the information. Would this imply that it does not have registers that it can access ...
0
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2answers
383 views

Dedicate more CPU to external sound card

So I recently got an external sound card/audio interface to use with my laptop (Edirol UA25 if you'd like to know). Now, after installing the drivers and setting it up, I've found that occasionally, ...
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0answers
353 views

CPU burning hot causing internet connection to slow down (or cut off)

I have an HP pavilion g6, 64 bit. I dualboot it, installing windows 7 and a linux distro. nowaday I'm running crunchbang linux distro. When I'm working on any linux distro, i don't remember having ...
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2answers
80 views

Data Recovery Machine

When building a machine for data recovery, what specs should I look for in a CPU/MOBO? From my understanding the BUS speed will be the most important factor over CPU speed correct? Because you are ...
2
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2answers
4k views

How much the CPU clock speed matters over number of cores? [duplicate]

I was comparing various desktop/server processors on Intel's website and found that Xenon Coprocessor family constitutes 61 cores. (firstly, this name lead me to think as if this would be a secondary ...
2
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2answers
254 views

Relationship between CPU usage, USB hard drive and network card

File this as me just being curious. I have an old computer (Dell gx280) that has a external usb 2.0 hard drive connected to it. I was trying to copy the files over a gigabit network connection to ...
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2answers
364 views

Central Processing System gets Hot

I have an Intel Desktop Board with an Intel Pentium D processor installed. My problem is that the processor stays warm when idle i.e. 55 degrees C . But under load the temperature rises drastically ...
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0answers
100 views

Overheating iMac(2008) with kubuntu 12.04

I have an 24 inch iMac from 2008 and I installed Kubuntu 12.04 on it. The problem is: if I' m running and CPU-hungry program(Android Emulator, Virtual Box), the CPU goes to 80C. Also the screen is ...
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1answer
2k views

Why is my CPU cooler fan delayed at startup?

I've just finished building a new computer with one of those new-fangled Haswell CPUs; in particular, the Intel Core i5-4570. I plug in the power, turn it on, and watch as everything starts spinning ...
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2answers
1k views

Chrome & Fan Speed

I'm on Windows 7 on my Mac via Bootcamp... I notice that the fan goes from 3000 RPM to 5000-6000 RPM when Chrome is running and most of the time it's doing nothing. The CPU in the task manager for ...
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1answer
40 views

Dozens of spontaneous reboots

I am working on a SUSE Linux based system that runs 24/7 and has done so for around 3 years although I cannot say that it has not been rebooted in that time. At 9th June there apparently was some sort ...
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2answers
128 views

Could my CPU be damaged?

This afternoon, I used the tuneup test from the catalyst vision engine control center. It started and my fan was gaining speed, getting to 5000 RPM before my PC instantly shut down. Wondering what ...
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2answers
970 views

How do I check if my Dell 745 has a Core 2 Duo processor?

I bought new dell 745 system(desktop). I paid for Core 2 Duo 2.1 ghz, but system is showing Core 2 in properties. It should display Core 2 Duo instead of Core 2. Is Core 2 and Core 2 Duois same thing? ...
0
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1answer
308 views

How can i write my CPU temperature into a file on linux

Recently i install lm-sensor for monitoring my CPU temperature. I am monitoring it by this command in terminal : while [ true ]; do sensors; sleep 1; done but i need access my temperature after i run ...
2
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0answers
115 views

Haswell power efficiency compared to Ivy and Sandy

After reading a few reviews about the Haswell CPU series, I concluded that upgrading from Ivy or Sandy bridge might not be worth it considering the limited power gain. However Intel does advertise ...
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2answers
57 views

Back to the Future - Advice needed Upgrading old Gaming PC for Video and Photo editing? [closed]

I built this system in 2009 for gaming, been collecting dust for the past 3 years. I want something for video/photo editing and Casual gaming. Should I Buy New/Upgrade/Keep what I got? If I upgrade ...
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1answer
615 views

Can thermal paste damage CPU and video card some time after applying?

Three weeks ago, I disassembled my notebook to clean its heat sink. I re-applied thermal paste and re-assembled it. It worked well, until about three weeks when it hard shut down while I was working ...
2
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1answer
15k views

How can I get to know CPU cache size on Windows 7

WMIC CPU command displays a lot of information about the CPUs on a machine. It only displays the information about L3 cache, is there a way to figure out the size of L1 and L2 caches using a command ...
0
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3answers
621 views

Unusually Hot CPU Temperature [closed]

I have a Dell laptop with a i7 720QM CPU, and for the past few months the fan has been running nonstop (or so it seems). This hasn't always been the case, and it just started all of the sudden. I ...
2
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1answer
807 views

Driver mount.ntfs-3g is using way to much cpu

ATM I'm downloading a movie with deluge which is 12GB big. This is a single .mkv file but the weird thing is that when I download this and I use NTFS-3G to mount my USB to debian it uses 99% of my ...
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0answers
123 views

X58 compatability questions: Xeon and RAM

I know "hardware compatibility" questions are typically closed as too localized, but hopefully there is some more general merit to these questions. If not, feel free to direct me elsewhere. ...
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2answers
221 views

I have overclocked to 4.7ghz, with core temps it reads at max load at 100 degrees C, is that too hot? [closed]

I have a i7-3770k processor and I have over clocked it to 4.7ghz. When it runs at 100% load, core temp reads it at 100 degree's Celsius. I have it liquid cooled, but it don't know how much it is ...
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2answers
4k views

When you start multiple threads on a multi core processor, are they guaranteed to be processed by different cores?

I have a Pentium core i5 processor, which has 4 cores. If I do this in a C# console program var t1 = new Thread(Thread1); var t2 = new Thread(Thread2); t1.Start(); t2.Start(); are t1 and t2 threads ...
5
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1answer
857 views

Only 4 cores showing up in task manager

For some reason only 4 cores are showing up in task manager I have tried everything(almost) setting and unchecking number of cores in msconfig did not work using easy BCD did not work ...
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2answers
606 views

Do modern GPU/CPU's contain a fail-safe for overheating or is it in the BIOS?

I'm curious about a couple things concerning thermal integrity of a CPU(Intel, AMD, etc) and where the monitoring occurs. Do all CPU's have a thermal sensor or is the sensor located outside the CPU on ...
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2answers
1k views

Set default processor affinity for all applications

I'm trying to improve CPU performance in a game, to do this I want to try giving it 2-4 CPU cores that run ONLY that application, and no windows related services. Is there I was where I can set the ...
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3answers
837 views

Is this system 32 bit or 64 bit? [closed]

I would definitely say that this system is 64 bit but the owner says it's 32. The computer is a Dell Optiplex 960 which comes both in 32 bit and 64 bit versions but I installed windows 8 64 bit ...
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0answers
2k views

linux kworker's CPU percentage extremely high

I have a laptop with i7 processor and ATI video card, all the distros I'v installed have a common problem -- there is always a kworker(kernel thread) occupy 40% of the CPU, (i.e. one of the 8 logical ...
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2answers
622 views

Why is the AMD Athlon 64 X2 Dual-Core Processor TK-57 faster than an Intel Atom CPU N570

There are ubuntu 12.04 32-bit on both machines, results of hardinfo benchmarks: Athlon | Atom X2 TK-57 | N570 **lower is better:** | | ...
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1answer
1k views

dell xps 15 thermal paste on intel graphics instead of heat pad?

I had recently opened up my Dell XPS 15 L502X to replace the thermal paste on my CPU and Nvidia GPU. I noticed that the Intel graphics Chip also had a thermal pad on it. To the best of my knowledge ...
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4answers
1k views

Is my CPU average Temperature fine? [closed]

I am using Asus-KS3SD, which is known for its ice cool behavior, but these days I noticed my Palm rest is getting warm, even if I run few programs like Browser+IDM+some little programs. I used Speccy ...
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4answers
3k views

Check CPU usage by tab or by add-on on firefox on mac

My version of Firefox has a runaway process/thread that makes it use 100% cpu on my MacBook Pro (OSX 10.7.4) after a few minutes. I've tried to use about:memory and about:addons-memory to try to ...
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2answers
2k views

CPU stat tool for CentOS?

I'm looking for a tool that outputs very simple usage information on the CPU at certain intervals. I think I've used a tool like this before a few years ago but cannot remember the name. I want to ...
2
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1answer
1k views

New computer won't boot

I've recently purchased a set of components and set about building my own desktop. It is not booting and I am stuck. When I hit the power button, the fans spin, but that's all. There is no video. ...
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0answers
341 views

Is it possible to have a dead core on a quad core processor?

A few weeks ago my iMac 27" Mid 2011 started restarting by itself. After a further investigation I found that it wont start with 4 CPU cores, but max 3. Is it possible that my 4th core is dead? Thank ...
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7answers
6k views

Computer randomly restarting: motherboard or processor?

My computer randomly restarts. Is it more likely my motherboard or processor? So, I know which one to return or replace first. Windows 7 SP1 64-bit Motherboard: Asus P8Z68-V/GEN3 CPU: Intel i7 ...
0
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1answer
305 views

PC turns on for second [closed]

I bought a pc with the following spec like 1 nd a half year back! Processor : Intel Core i5 2500 MotherBoard : Intel DH67BL RAM : G-Skill RipjawsX 4GB HDD : 500GB Samsung Graphics Card : EVGA ...
0
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1answer
242 views

Using awk or cut command to get CPU percentage

I am trying to execute a Linux command through a PHP script to get the CPU percentage for each core: … with cut: $output = null; passthru("mpstat -P ALL | grep 0 | tr -s ' ' | cut -d ' ' -f 4", ...
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1answer
3k views

Why is Computer Processing Speed Measured in Hertz? [closed]

Why is the strength or processing capability of a CPU measured in hertz?
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1answer
36 views

My CPU wont start until I un-plug and re-plug the power cable several times

My CPU wont start until I un-plug and re-plug the power cable several times either from the mains or from the back of the CPU. I have changed the power cable but no go....What might be wrong??
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1answer
377 views

Computer Randomly Powers Off

A few months ago my computer started randomly powering off, sometimes I would get a few hours, sometimes a few days. I first replaced the power supply (PC Power and Cooling Silencer Mk II) which ...
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votes
1answer
229 views

How does the microprocessor make the bits move from memory to inside of it? [closed]

I was just wondering, since it only fetches bytes that are read as circuit instructions to process data and the like, but how exactly does it "move", get the bits going, outside of the RAM IC to ...
0
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1answer
79 views

Speccing out CPUs (more than just cores and clock) [duplicate]

This is not a production question, just something that I've been thinking about. When speccing out CPUs I know the general rule is a faster clock speed will make a core run faster and the greater ...
0
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2answers
2k views

Why does Dropbox consume CPU cycles even when paused? [closed]

Today I noticed that Dropbox consumes nearly as much as half of CPU time consumed by kernel_task on OS X 10.8.3, which is a pretty decent amount of CPU usage. So I paused it and see what would happen. ...
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1answer
543 views

My MPC started on its own and the process mpch64.exe was running at 100%, why? [duplicate]

I was working and all of a sudden heard my computer fan spinning extremely fast as if I was playing a 3D intensive game. I checked my processes and quickly discovered the culprit - mpch64.exe. My CPU ...
4
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1answer
1k views

CPU gets stuck at 0.90 GHz and 53% usage cap

Configuration in question: Model - Dell 1558 CPU - Core i7 740 @ 1.73Ghz - 2.93GHz RAM - 6GB DDR3 1333Mhz OS - Windows 8 Pro MSDN Now this problem has started since yesterday. My computer blanked ...
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1answer
83 views

distinguishing between motherboard problems or cpu failure

my pc is not booting. After looking at some of the answers on this site I removed the hard drive( SAMSUNG HD161HJ) and removed the RAM chip. Upon powering it up it did not beep and the monitor also ...
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0answers
421 views

One CPU core stuck at 100% doing kernel stuff

A few days ago I started experiencing a weird issue - one core was stuck at 100% doing some kernel stuff. This problem is NOT OS specific: it occurs in Windows 7 (including Safe Mode), Ubuntu 12.04 ...