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

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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 ...
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1answer
186 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 ...
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0answers
72 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 ...
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0answers
27 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 ...
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2answers
72 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 ...
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45 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 ...
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0answers
41 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 ...
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1answer
52 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 ...
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1answer
104 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 ...
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1answer
30 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 ...
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1answer
48 views

Are these problems symptoms of a broken motherboard? [closed]

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 ...
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3answers
129 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 ...
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0answers
12 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 ...
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1answer
32 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 ...
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3answers
77 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 ...
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1answer
32 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 ...
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1answer
150 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 ...
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0answers
73 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 ...
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4answers
260 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: ...
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1answer
52 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?
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1answer
277 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 ...
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1answer
61 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 ...
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41 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 ...
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0answers
62 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) ...
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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 ...
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1answer
138 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 ...
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49 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 ...
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3answers
52 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 ...
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2answers
65 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?
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1answer
34 views

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

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 ...
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1answer
46 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: ...
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40 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 ...
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2answers
69 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 ...
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1answer
54 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 ...
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1answer
59 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 ...
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1answer
38 views

PSU starts and stops immediately. Need Help.. IS it faulty?

Yesterday when I switched on the PC it started and stopped immediately. I tried everything that I could. For PSU I jump started it by paper clip test. When I switched on the PSU, the fan started ...
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New CPU not working

Just bought a new processor in preparation for Shadow of Mordor. Replaced the CPU and the heat sink and now the computer fans start spinning and then turn off after about a second. I didn't touch ...
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2answers
56 views

Should I buy an aftermarket cooler? [closed]

I need a solution for cooling the i7-4790k. I am worried about the temperature of the CPU core going beyond 95°C (not fahrenheit). Should I buy an aftermarket liquid cooling for my CPU for lowering ...
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1answer
51 views

A process CPU usage doesn't change for different priority

I wrote an infinite loop in python to print No! in the output. while True: print("No!") When I execute it, I see its process (pythonw.exe) in Windows-Task-Manager that uses 60% of the CPU. I ...
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1answer
68 views

Are all Socket G2 processors interchangeable?

I've got an HP probook 4540s and I'm looking at upgrades, but I want to know what my options are. Will I be able to use any Socket G2 processor, or am I limited to the ones the laptop ships with?
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AMD Processor state failures

I have a HP Pavillion dv6-6123cl Entertainment PC with a locked bios. I use a program called K10Stat in order to get around this and overclock anyway. I have AMD A6-3400 APU with Radeon(tm) HD ...
0
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1answer
35 views

Calculate the throughput of a processor in bits per second

Let's say for example you have an 64-bit 3.2 GHz processor with 8 MB of Cache. What is the theoretical and practical throughput as it would write to RAM (assuming there are no RAM bottlenecks)? Thank ...
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1answer
59 views

CPU clock and L3 cache for programming

I'm interested in how much different hardware choices affect the following use cases: Programming in Python: lots of heavy mathematical computations using numpy arrays Data Applications in Python ...
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1answer
41 views

Need help comparing Laptops with best speed RAM

I am planning to buy Lenovo Yoga 2 11.6 Laptop, but I do not understand The difference between the RAM in comparison. Windows OS. Hard Drive. Thanks, Here is Screenshot. Link to screenshot. ...
2
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1answer
57 views

Is it better to have two cores or four logical processors?

My system has two physical cores, and four logical processors. To my understanding this means that I have four CPUs due to Hyperthreading, and work is distributed as evenly as possible. However, I ...
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23 views

Two separate motherboards exhibiting different issues with same CPU

Recently one of my home build computers that the family uses shut down unexpectedly. I tried to reboot it several times, with the first couple it attempted to boot Windows, and the last few it ...
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2answers
59 views

How Do I Test a CPU?

I've been trying to repair a friends computer. It's been a trial and error process. Starting with the least expensive fixes. The original problem is that the system would not power up. The PSU Fan ...
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2answers
79 views

virtualbox increase cpu cores script wise

1x cpu core is not enough for an SMB filesharing Ubuntu box. How do we poweroff the VM at midnight, increase the cpu cores 1->2, and power on that box (script-wise)? (it's a windows host... but ...
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1answer
65 views

How can I find the amount of floating point operations for each Mhz for processor X?

I've decided to buy a certain processor (laptop Intel-Core-i7-4790K 4Ghz-4.4Ghz turbo), but it pains me that I can't tell how many GigaFLOPS(GFLOPS) the processor actually has. I also can't find how ...
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1answer
105 views

VirtualBox can't create 64-bit VM after reboot

Host: Windows 7, 64 bits. Processor: AMD Phenom II X4 965, quad core, 64 bits Since I upgraded to VirtualBox 4.3.1.16 I am having this issue. After installing the VirtualBox exe I can create 64 bit ...