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

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What is more important on a cpu? [duplicate]

What should be the criterion upon I should decide whether or not to buy a processor its speed? or the number of cores? meaning should I seek out a processor which is fast but has 2-3 cores or is it ...
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Difference between CPU and processor [duplicate]

Is there any difference between the terms 'Central Processing Unit' and 'Processor,' or are the terms interchangeable?
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How to limit number of CPUs in Mathematica

Is there any way to limit the number of usable cores from within a mathematica program? Here is the long story: I am submitting some batch jobs to a server. During the submission, I need to indicate ...
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Will my cpu (E7500 core 2 duo) bottleneck r7 260x?

My pc specs are E7500 core 2 duo nvidia 9500 GT 1 GB DDR2 4 GB DDR2 ram I want to upgrade my graphic card and I am choosing between r7 260x and r7 250. I am worried that my system wont be able to ...
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Should you worry about high voltage and wattage on a non-overclocked computer?

I've been wondering if I should be worried at all about high wattage or voltage on a non-overclocked computer. I say non-overclocked because when I Google search this question or something similar it ...
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How can I limit the speed of the chasis fan on an Asus M5A78L-M LX PLUS?

I was working on an Asus M5A78L-M LX PLUS motherboard and I replaced the chassis fan with something a little bit quieter and with more CFMs. However, once installed, it was very noisy and it was ...
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1answer
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Will this processor be compatible with my PC?

I have an Advent T9508 PC with a Foxconn 45CM motherboard. The processor that the computer came with when we purchased it many years ago was a Core 2 Duo @ 2.2 GHz. I found a Core 2 Duo 3 GHz E8400 ...
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1answer
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Can OS X run in an x86 emulator?

I have never heard of nor seen OS X operating systems running within x86-64 emulators. Is this a reason? Windows, Linux, etc., and plenty of hobbyist OSes work on x86 emulators (even SkyOS); however, ...
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What are fundamental advantages or disadvantages of the PowerPC architecture versus x86? [on hold]

Why was PowerPC being used more in certain applications, while x86 has become the PC-standard?
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1answer
39 views

lshw shows wrong CPU count

I have a Samsung NP550P7C laptop with an Intel(R) Core(TM) i5-3210M CPU @ 2.50GHz Under Ubuntu 12.04 32bit, lscpu and /proc/cpuinfo detect 4 CPUs but lshw only shows 2 CPUs Could there be some sort ...
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Is it possible to replace the Surface RT NVIDIA 1.4 GHz Tegra 3 Processor with an Intel i5 or i7?

Tear down difficulty aside, is it possible to simply remove the NVIDIA 1.4 GHz Tegra 3 Processor in a Surface RT and replace it with an Intel i5 or i7? I admit I am not much of a hardware guy ...
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Very slow computer but low CPU or Memory usage

My computer is very slow. All the programs and Windows itself is slow. But strangely, all the games run without lag. They are not affected somehow. I just reinstalled my computer for the 6th time ...
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Ubuntu 14.04 hangs at “[2.688088] Switched to clocksource tsc” (Intel Pentium 4)

I installed Ubuntu Server 14.04 on a Pentium 4 machine but booting the System hangs at: [2.688088] Switched to clocksource tsc I've tried all the Grub kernel bootoptions listed in this post: Linux ...
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2answers
33 views

do I get half the CPU speed for a single thread if HT is turned on? [duplicate]

If I have a single 2.6GHz core for example would it mean that with hyperthreading I have only 1.3GHz for a single thread that my app have or is it on demand only if I will use (lets say my app is the ...
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Lag in Windows 8 when playing audio

I ran LatencyMon and these as the following results... CONCLUSION: Your system appears to be having trouble handling real-time audio and other tasks. You are likely to experience buffer underruns ...
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0answers
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How do I make cpukiller3 app to AUTO RUN on boot with windows?

cpukiller dot com is the site. But need it to auto start running each time I get the computer to boot. ON WINDOWS
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0answers
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system monitor showing 25 ghz cpu speed, could that have any bad effect?

http://i.stack.imgur.com/ZKl0f.jpg I have a water cooled system, but.... I dont hatve that kind of wallet to be able to pull that out. is anyone of you that had this problem?? what I want to know ...
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0answers
27 views

Laptop shutdown(without any error) due to overheating [on hold]

I am posting my issue too late than it started occurring. I have a sony vaio with intel core i3-370m,4gb ram,500gb hdd and 1gb amd radeon 5000 series gpu. Its more than 3 years old laptop but i used ...
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8answers
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What's the difference between mobile and desktop processors?

I just read about the new Samsung Galaxy Note Edge having a 2.7GHz quad-core processor and 3gb of Ram. The laptop I bought last year by HP is 4 Gb of ram and 2.3GHz quad-core and my iMac is even ...
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1answer
29 views

Difference between Instruction, operations and micro-operation (uop)

I am trying to understand the intricate terms related to performance of processors. Computer performance is measured in FLOPS, which is short for FLOPs per Second. FLOPs itself stands for ...
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2answers
33 views

Is it bad for a CPU to be running at a high speed for extended periods of time?

I have an Intel Core i7-4770S (3.10 GHz) that can go up to 3.9 GHz in turbo mode. Windows Task Manager can report it going up to about 3.5 GHz when playing certain games and probably goes higher every ...
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1answer
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Can I use 2400MHz RAM with an Intel Xeon E3-1230V3 processor?

The datasheet for the Intel Xeon E3-1230V3 says it supports a maximum of 32GB DDR3-1333/1600. But isn't the RAM speed dependent on whether the motherboard supports it? I'm thinking of getting this ...
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2answers
333 views

Are my CPU temperatures too high?

My CPU temperature revolves around 40 - 50 C while idle and it immediately shoots up to 90 C while starting a game as old as AOE II Conquerors. See below the screenshot which I captured using CPU ID ...
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Windows 8.1 High CPU usage when inserting a removable disk

I've been experiencing high CPU usage since I have upgraded my pc to Windows 8.1. When I insert a removable drive (e.g. flash drive) it makes my CPU usage all the way to 99%. and my Task manager tells ...
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Server or workstation? how do I choose a good system for parallel computing of MATLAB software?

I need a high performance system for my MATLAB calculation. Besides the number of cores (logical cores) I need fast cores, high RAM (near 64GB), and a fast CUDA core Nvidia graphic card. I found that ...
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My CPU fan is constantly at ~500RPM - LOW SPEED

I have tried setting the RPM in the bios but the only two settings are "Off" and "Slow". My mobo is DP55WG and it is updated. I am using an 212 EVO heatsink + fan and the fan is plugged in the correct ...
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1answer
22 views

Low performance when charger is plugged in

I got this laptop: Dell Inspiron N5010 with i5 2,40GHz processor, 8GB Memory and a Kingston SSD. 4 months ago my charger`s pin jack has broken, but it was still working. I noticed that the ...
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1answer
24 views

What is a U2E1 socket?

I have a 2011 MacBook Air running Ubuntu 14.04 and would like to find out the CPU socket through software methods. To do so, I'm running sudo dmidecode -t 4, which yields, among other things, this: ...
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nice has no effect in Linux unless the same shell is used

If I enter in two different root terminals: nice -n 19 burnK7 & and nice -n -19 burnK7 & Then both processes receive about 50% of the available CPU time - not expected and certainly not ...
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Is it possible to connect multiple output screens to single machine

Suppose i have four screens A,B,C,D connected to single machine. I need to play different video to each screen which control and coordinated by application running on single machine. Problems i am ...
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Why is Google Drive so heavy on my CPU?

As the below screenshot shows, despite the fact that Google drive doesn't appear to be doing anything (it's not syncing any data) it's using over 12% of my CPU (a core i7). The official ...
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1answer
44 views

Is the Asus Z97 Board integrated Graphics or iGPU, and what is the difference? [duplicate]

I plan to buy an Asus Sabertooth Z97 Mark 1 board, with an Intel Xeon Processor E3-1220 v3 (without graphic). Now I don't know if the Asus board uses an integrated graphics or the graphics from my ...
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1answer
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Z87 Deluxe edition Won't boot with Core i7-4790K

The new motherboard, of a friend of mine, will not boot with his brand new Core i7-4790K processor. The CPU error LED blinks as soon as we power on the unit. Hadrien
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Does this Motherboard support 2 Graphics Cards

hello i've just bought new pc gamer with this motherboard, i've already nvidia geforce gtx750 and i want to add another 3d graphic card, is it possible to support another one ? ps: my power supply is ...
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AMD CPU Temperature

I installed an AMD A8-6600 and the CPU temp seems high. It's running between 60 - 68C in the bios health monitor. I'm using the onboard graphics. That temperature seems too high to me. Is that temp ...
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1answer
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How can I compare effective power usage of two CPUs / CPU+Mobo+Mem combinations?

I have this server which does mostly file sharing (with the associated storage). No serious number crunching and it isn't the firewall. My current box has a Celeron D processor (Prescott 336 2.8 GHz); ...
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261 views

worth upgrading macbook pro 2.5 for 2.8GHz processor?

I've just bought a macbook pro 15 inch with 8GB RAM, 500GB ssd, and 2.5GHz quad core intel i7 processor. I am using it for Lightroom and I also intend to use it to do some video processing, probably ...
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Error 5A - Internal CPU Error

So I built myself a pc for the first time. The machine has been running properly, and without issue, since March of this year. Today after an hour or so of gaming the machine shutdown without ...
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Bigger cache size or more cores? [duplicate]

I know that there is similar question here. Reasons I post it again is because that question is quite old, so I hope so that I'll be able to get more info. Also, three years is really long period for ...
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1answer
60 views

What is the CPU microcode?

Today after unpacking the initramfs file from my Linux /boot directory I found that it contains the GenuineIntel.bin file, and that that file is an image of what is called the CPU microcode. Then I ...
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14k views

Why are they putting “processors” on hard drives?

What does it mean when hard drives have a processor on the hard drive? How does it work, and what benefit does it have? I don't understand - the CPU on the computer is the processor and the hard ...
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3answers
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Operation System Clone from a Motherboard to Another [closed]

Lately we had an idea with my Family of building a Super Computer from Scratch. So while we were planning on building our setup, one idea came to my head that it seems possible but i want also your ...
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1answer
40 views

HP Elitebook 8530p's CPU Increases to 100% when Plugged In

I apologize if this post is too long or doesn't describe the issue properly. I have absolutely no idea why it is doing this, apparently it is a problem with HP computers or a particular strand of them ...
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Would a powerful enough D-Wave system (quantum computer) be enough to reach over 50% of bitcoin?

Bitcoins computational power is about 64 exaFLOPs. The most powerful supercomputers don't even reach one of those exaFLOPs. D-Wave, unknown as I couldn't google it, but I read that it is 3,600 times ...
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What is the different between a CPU with or without the GPU?

This may be a dumb question. But this is definitely a quick n easy question for those who know it :) When I choose to buy a CPU with No GPU, such as some of the Intel Xeon CPUs, what should I bear in ...
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How to identify hardware performance bottleneck in laptop?

Is there any tool that helps to determine the weakest link of my current laptop hardware specification? Any online guide to help me choose nice balanced configuration for the new laptop? I need to ...
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2answers
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Do I need new thermal pads?

I have an ASUS G51VX that I've had for about 5 years and it ran fine, except when watching HD videos; then it had a tendency to overheat and turn off. I took the heat sync off to apply some Arctic ...
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Since each CPU's core can process one or two threads at once, how OS stills stable even if there are multiple threads running?

To explain more, suppose we have a dual core CPU without hyper threading, that means it can process 2 threads at once only, well, now suppose we have a network application that is running two ...
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1answer
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“Not responding” error while CPU and Memory are free

Sometimes, while CPU and Physical memory are free, some program's status change to Not responding! Why?! For example as you see below, 80% of CPU and 25% of RAM are free! but VMware went to Not ...
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Why doesn't “add more cores” face the same physical limitations as “make the CPU faster”?

In 2014, I hear a lot of programming languages touted for their concurrency features. Concurrency is said to be crucial for performance gains. In making this statement, many people point back to a ...