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

learn more… | top users | synonyms (2)

0
votes
0answers
5 views

GPU programming with on-board GPU

I'm considering buying a new laptop with an on-board GPU, without a separate GPU. But I'm not sure whether it will be capable to do some GPU programming. As I'm a computer science student, GPU ...
1
vote
0answers
4 views

HP laptop doesn't power up

I am kindly asking for your help. I have an HP DV7T-6C00 laptop which doesn't power up at all. I have read various forum threads and they did not solve my problem that's why I'm opening a new one. It ...
0
votes
0answers
8 views

Processor never reaching maximum frequency

I have an Intel i7-3630QM which, according to both the adverts and /proc/cpuinfo, can go up to 2.40GHz per core. I ran cpufreq-set -g performance cpufreq-set -f 2400000000 And I'm running a ...
0
votes
0answers
19 views

CentOS 7 on VirtualBox Using 100% CPU

I have CentOS 7 installed as a guest in a VirtualBox 4.3.18 virtual machine, with the latest guest additions installed too. The host operating system is OS X Yosemite running on my 2014 MacBook Pro ...
0
votes
0answers
26 views

Processor Overheating Issues

My processor is an AMD 8120FX running just shy of 3.9 GHz with a stock heatsink/fan. My motherboard is an ASUS Sabertooth 990FX. My graphics card is a nVidia 560SE GTX. I have 32GB of RAM, two 1TB ...
2
votes
1answer
56 views

Constant CPU usage without cause

For a few days now, my computer uses a constant 30-35% CPU time, even if I don't use any program, and the mouse pointer shows a spinning circle next to the arrow. I checked the Task Manager and ...
0
votes
2answers
10 views

X86: Frequency or architecture or other factor matter to compute fast and massive python/numpy loops?

We need to compute numpy/python script that run for days because they use a massive number of loops to compute small Numpy/Python float arrays (array of some Mo). Operations are over rows taken one by ...
0
votes
0answers
24 views

Pentium 3 GHZ Dell high CPU usage while using Windows 8.1 and chrome

My CPU load is high with windows 8.1 and Chrome latest version. I have a Dell 3 GHZ with 2.5GB of RAM. All tests are fine except browsing is sluggish and makes noise and sometimes crashes. Task ...
-2
votes
1answer
48 views

VMWare Workstation processor configuration

I want to configure VMWare Workstation so that it is optimal and both host and guest Operating Systems run smoothly. Will anyone of you please help me in choosing right configuration. My laptop system ...
1
vote
1answer
22 views

Motherboard has power, but doesn't light up anymore

My rig gets power and the SATA connectors work, heatsink fan, USB, etc. CPU is dead but is it safe to get a new one to test without thermal basting? I ask because I don't want to kill another CPU but ...
0
votes
1answer
19 views

Will all processors work on any machine if they're the right socket type?

I had a computer that came with an old stock Celeron 450 @ 2.2GHz. It died (the latter CPU) and the computer remains unusable as of now, but someone gave me a used Core 2 Duo, which also uses LGA 775, ...
2
votes
0answers
19 views

Asus Z97 Mark 2, i7-4790 getting CPU graphics to work

This is a new build. I've been trying for two days to get the CPU integrated graphics to work. The motherboard has a "displayport" connector which I have connected to my Asus PA246Q monitor, also ...
2
votes
0answers
17 views

Do the temperatures indicate my laptop healthy?

The temperatures of my Thinkpad T400 are: acpitz-virtual-0 Adapter: Virtual device CPU_0: +57.0°C (crit = +127.0°C) CPU_1: +56.0°C (crit = +100.0°C) thinkpad-isa-0000 Adapter: ISA ...
0
votes
2answers
33 views

Does multiple cores in CPU affect how many programs I can run?

I have question about multiple cores in CPU. Let's say I am working in few programs at the same time, for example: - Photoshop - Autodesk Maya - Visual Studio - Unreal Engine If I would have more ...
-3
votes
0answers
22 views

Why do some graphics cards have their own CPU? [closed]

Just want to now "Why do some graphics cards have their own CPU?" seems wierd
-2
votes
0answers
20 views

My lab has 6k$ to spend on a new computer, need configuration advice [closed]

New computer will be used for bioinformatis things. The requirements are: a lot of HDD space; a lot of RAM; usb 3.0 ports; one or more thunderbolt port; LAN connection; decent video card (ability ...
0
votes
0answers
26 views

CPU pins bent-ish and processor dead. Steps to take?

I have an old computer that's been non-functional for some years. Last I checked it has power and turns on, fan spins, SATA ports give power, but no video output. My assumption is that the CPU is ...
0
votes
0answers
14 views

Intel i7 4930.heat [closed]

I'm getting very different readings of my CPU's temperature depending on the program that I use. My gut feeling is that ASUS' program is more accurate, since it came with the motherboard. (Extreme IV) ...
0
votes
0answers
18 views

LGA 1150 and Haswell Refresh CPU's

Many of the LGA 1150 motherboards, will not support some or all of the Haswell Refresh CPU's, even some of the H97 and Z97 it seems according to the vendor specifications (specifically in regards to ...
2
votes
1answer
31 views

mscorsw causing fan to spin like hell when idle

So it has been happening for some time, whenever I go away from the computer, after 5 minutes I hear the fan going full speed. When I come back it stops immediately. I managed to find out what was ...
0
votes
1answer
68 views

Random process at 25% CPU usage

I have strange problem. Sometimes, often after few minutes of using PC a random process get 25% of CPU usage and it stays at that. Sometimes it's chrome, bittorrent, text editor or something else. And ...
3
votes
1answer
26 views

Reactivate Dormant Processes in Windows7

I have a very computationally intensive program (which I wrote in python) and starting two days ago I ran 6 copies of it in parallel (using 6 Cygwin terminals on a Mac Book Pro running Windows7 in ...
0
votes
1answer
30 views

Are these problems symptoms of a broken motherboard? [on hold]

I've got a Latitude E5500 That has been apparently been sitting in a box for a few years. Lady gave it to me, said it would never boot up. As I suspected, the bios battery was dead. I yoinked it out ...
0
votes
1answer
36 views

Amazon Instance: High CPU load despite cpu being mostly idle

I have Ubuntu 12.04 running on an Amazon m1.large instance. For a long time it is showing extremely high CPU load(7-10) at all times. Typically top shows the load average like this top - 13:34:40 ...
0
votes
3answers
65 views

Maximum Processor Speed Lower Than It Should Be

If you look at the screenshot, you'll see that the processor should be running at 2.70 GHz, but the reported clock speed on the bottom right of the screenshot shows that the maximum processor speed it ...
0
votes
0answers
10 views

Cortex M0 NVIC interrupt issue

Advanced thanks for the help! We have encountered an issue where the CPU is not handling/calling the ISR handlers registered at the IRQ vector map. We see that in the CPU NVIC registers, the ...
1
vote
1answer
21 views

What does “book” mean in the output of 'lscpu -p'?

On Linux, the lscpu -p command outputs lots of information about the CPU architecture. One of the columns is the "book number". What does "book" mean in this context? EDIT: the documentation of lscpu ...
0
votes
3answers
64 views

How did the first Microprocessors knew the meaning of binary codes?

I've been asking myself this question for more than one year and I just decided to ask the question on here. I don't know if it's the right place or not. As far as I know Microprocessors are a ...
0
votes
1answer
30 views

Running at close to 100 cpu

So I have a python script that is really pushing the limits on concurrency. When the script is running, the cpu load of my computer is close to 100% at all times. Can this harm my computer? To be ...
0
votes
1answer
56 views

How to allocate more processor power to my (Ubuntu-based) Virtualbox system in Windows 7?

I have installed an 32-bit Ubuntu based Linux OS, Elementary, on a VirtualBox installed in Windows 7 (32 bit) , on a 64-bit laptop which has a 2-core Intel i3-2330 CPU @2.20Ghz, and 4GB RAM (2.45 ...
1
vote
0answers
37 views

What is Prime95 benchmarking?

I've recently had to benchmark the CPU performance of a variety of operating systems on identical machines. I've been using the 'benchmark' functionality of Prime95 to obtain a consistent test. I've ...
2
votes
1answer
31 views

How crucial is CPU clock speed/frequency in software performance? [closed]

People say that when you aren't getting the best performance, overclock your CPU. On the other hand, clock speed doesn't improve microarchitecture, and speed without efficiency is not truly as fast as ...
4
votes
4answers
186 views

BSOD on Windows 7 even on a fresh install

I had Windows 7 installed and was receving BSOD after BSOD every hour or so. Motherboard: ASRock X79 Extreme6 Memory: 64GB Corsair DDR3 PC2133 (8x8GB) Graphics Card: AMD R9 270X (4GB) Processor: ...
-1
votes
1answer
42 views

Deactivating Intel Turbo Boost

I disabled this option from the BIOS but I don't notice any change in system temperature or fan noise. The CPU is Core i5 4310U. Is this normal? Am I doing something wrong?
-1
votes
0answers
47 views

my cpu usage is always close to 100% even when not doing anything

Hi I have a a acer laptop running on windows 7 dual booted with windows 8. When I open task manager cpu usage always shows 100%. I am using eset nod32 and have run scans with no threats detected, I ...
4
votes
1answer
268 views

At what point will two CPU processes interfere with each other?

I'm running multiple processes on my CPU simultaneously, and now I am trying to find out how much CPU power each of them can use until they start disturbing each other: For simplicity's sake let's ...
-2
votes
1answer
25 views

Experiencing lag during games despite meeting system requirements..help please

Here are my computer specs Mainboard: ASRock M3N78D CPU: AMD Phenom II X4 960T Video card: GTX 560 RAM: 4G Hard Disk: Samsung HD501LJ XCOM Enemy Within recommended requirements CPU: Core 2 Quad ...
0
votes
0answers
17 views

Dual core CPUs stall with Docker on Ubuntu Linux

I have seen performance degradation after half an hour to one hour with machines running Celery (Django/Python), or Storm under Docker containers with Ubuntu base on Dual-core CPUs on AWS. I see ...
0
votes
0answers
36 views

Why does /proc/cpuinfo incorrectly report the cpu MHz when overclocked?

I decided to overclock my AMD Phenom ii X2 560 from 3300 MHz to 3600 MHz. Here are the results of the benchmarks in BOINC, before and after: Windows 7 64-bit: Normal: 2683 floating point (Whetstone) ...
0
votes
0answers
7 views

Is there an overview of machine and cpu compatibility and smp support for qemu 2.x?

I started an attempt to get an qemu 2.1.2 instance running which uses multple threads and cores of the host CPU and realized that the descriptions of -cpu help and -machine help neither provide an ...
0
votes
1answer
31 views

CPU Upgrade Options - rPGA Socket 989

I have a Samsung R730 laptop with HM55 chipset and the above socket number. The current processor is an Intel Pentium P6100. The processor is very limited with regards to visualization etc and I ...
0
votes
0answers
32 views

setting affinity for multiple cores on dual cpu system

We are using some systems with 2cpu's with 6 cores/12 threads each so 24 threads in total, for quite a lot of multitread simulations. Because the problem doesnt scale perfectly, i usualy run 4 ...
0
votes
3answers
39 views

Find which process uses on average the most CPU, Memory and IO on Windows 7

I'd like a way to monitor processes on Windows 7 for average CPU, Memory and IO since last boot. I would love it if it was a nice UI friendly tool that could sort processes by Average CPU, Average ...
-3
votes
2answers
56 views

Intel CPU names history

Why do the names of so many Intel CPUs start with 80? For example 8008, 8086, 8088, 80186, and many others. Does the number mean something?
0
votes
1answer
28 views

How do I lower processor usage to its bare minimum operating?

I am running on Windows 7 and I have the habit of not turning off my computer at all. This is due to me hosting some services on my pc that have external users. The question here is, how do I lower ...
2
votes
1answer
41 views

Understanding of how does the CPU works

I'm doing a school project on how does the computer processor work in detail and I would like to check if i understood that principle. According to this scheme I'd like to clarify a few things: ...
3
votes
0answers
33 views

Heterogeneous (cpu+gpu) System Architecture using C++ [closed]

I want to develop an image processing system on a computer that has both multi-core CPU and GPU (I don't have such a computer yet, so this is part of the question too - what cpu and gpu models are ...
0
votes
2answers
33 views

Installed liquid cooler, now pc shuts off immediately

My PC, which I built over two years ago (and has been running fine the entire time) is now shutting off about a second after I try to power it up after going from the stock AMD CPU cooler to a Corsair ...
0
votes
1answer
49 views

Cpu hot to touch

so its about almost 2 month's now that i had some huge games fps drops, i decided to google and descover why this is happening, and i read an article which explains the "dust" is some of the issue i ...
0
votes
1answer
35 views

Understanding the differences between different Intel processors

I'm looking at buying a new laptop PC (my old one is failing). I noticed the latest CPU clock speeds are lower than my current one though the CPUs are newer. It used to be that a higher clock speed ...