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

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unix process showing unusual cpu usage and timing in ps aux

USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 684 186912060 0.0 17140 988 ? Ss Feb24 54195432:44 root 7319 288895842 0.0 4096 668 ? S 04:30 ...
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26 views

Can't set Minimum CPU state to 100% on Xeon E3-1230 V1

I have several servers: some of them have Xeon E3-1240 V3 and some have Xeon E3-1230 V1. All of them run on Windows Server 2008 R2. I need extremely low latency (even 500 microseconds matters), so I ...
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22 views

installed 64-bit W7 on Core 2 duo slow pc

CPU: Intel Core 2 Duo P7350 2.00Ghz RAM: 3GB Hi I recently cleaned and installed Windows 7 on my 3 year old laptop. And it seems most programs are running incredibly slow when starting up a program ...
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2answers
39 views

In what operations do processors internally use bitwise computations?

I understand what bitwise operations are, and I know how to use them in my code. However, are there situations where the processor will automatically use bitwise operations to perform a computation? ...
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0answers
28 views

Some CPUs didn't answer in synchronization

I built a new computer: i7 4770k 3.5 Haswell Gigabyte Z87N-WIFI Samsung 840 Evo S x2 (in RAID 0) 450w Corsair RM 80Plus Dark Rock Pro 3 Cooling Kingston 1600 DDR3 NO DEDICATED GPU Operating ...
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1answer
24 views

Turbo Boost Technology Monitor is EOL so what can I use to monitor Turbo Boost on my CPU?

Turbo Boost Technology Monitor is EOL, and quite honestly I can't tell if it works anymore or not with Windows 8.1. Regardless, soon it will be removed since its end of life is soon upon us. What can ...
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0answers
16 views

how do I know whether a fan error on post requires action?

I have an HP a6400f PC, (it's a tower) and after a brief power blackout, I started getting a generic "Fan error" problem upon startup. I can click through the error and boot into Ubuntu. ...
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1answer
22 views

Create a new process and make it use more than 10% CPU?

Really odd question I know. It's to help demonstrate my university coursework. I'm going to be killing processes that are using more than 10% of the CPU.
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1answer
60 views

Which is the most CPU-efficient virtualization solution on Linux? [closed]

I am interested in the following problem: When running CPU-intensive tasks inside a virtual machine, there is a certain CPU overhead, i.e. the same task takes a slightly longer time to run inside a ...
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1answer
28 views

Couldn't find the specific details for a IBM x3850 server

This ad mentions the model of the server as " IBM x3850-[88633SM]- ". However, in my searches I was unable to find any meaningful reference to the specific server. The closest I could find is this ...
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20 views

graphics card suddenly stopped working

I have an NVIDIA XFX GeForce 9800GT. It was running smoothly but but then one day, the CPU wont turn on. I called a mechanic, and then he uninstalled the graphics card and then the CPU turned on. Now, ...
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2answers
49 views

What is the on-chip network topology of an Intel Core i7 (or i3 or i5) processor?

What is the topology of the interconnection network within an Intel core i7 ,i3 or i5 processor? Is it using a: Crossbar Ring Hypercube Mesh Butterfly or what ?
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1answer
40 views

How can I quickly control my fan- and processorspeed? [on hold]

I'm searching for software which can be used to (quickly) change your CPU/fan speed. I regularly use my laptop for gaming, causing it to become really hot, mostly around temps of 90-100C. I don't ...
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3answers
81 views

What is the difference between multithreading and hyperthreading? [closed]

I've heard the terms hyper-threading and multi-threading, but what exactly is the difference between them? What kind of inlet processor uses them?
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1answer
77 views

PC overheats when at BitLocker password prompt

I have very strange problem... first, some details: Windows 8.1 Pro motherboard: ASUS Z87-A Intel core i7-4770k CPU cooler: Corsair H90 (hydro) chassis: thermaltake mk-1 I've encrypted my system ...
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0answers
19 views

VMWare CPU Usage reaching 100% when running software

I have VMWare Workstation and I'm very new to it. Unfortunately for some reason when using it with a software I have, it keeps hitting 100% CPU usage and my computer freezes. What's odd though is ...
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2answers
32 views

Clock down Intel i7 3610QM

I have some big troubles with my CPU. It is getting too hot and therefore performs a thermal shutdow which basically means it just kills itself. Since I don't need the full power of this CPU I was ...
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0answers
47 views

Windows 8.1 - System process uses 1 core up to ~90% constantly

Asus N550JV comes with Windows 8 installed. I prefer 8.1 so I installed Windows 8.1 on my machine. Downloaded all the specified drivers on Asus Support Page, not to mention my whole system is up to ...
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1answer
24 views

AMD FX 4130 overclock-How to overclock the CPU from the BIOS [closed]

Well I've been using my CPU for awhile now but I want to unlock it's full power but when it comes to CPU overclocking I've never been good with it nor taken the time to learn it from these bad video's ...
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1answer
31 views

Why is my CPU slowing down? (power settings and temperature are OK)

I realise others have posted similar questions, but I'm having trouble working out why my processor isn't running at full speed. I'll keep this visual. Given this: ...and this: ... why does ...
2
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1answer
33 views

How do I decide what CPU to buy? [closed]

I'm building an HTPC and I already have a motherboard with an Intel socket 1150 -- but how do I decide what specific CPU to get? I'm happy with the Core i7 in my desktop but for cost reasons I'll ...
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3answers
34 views

How to give 100 percent CPU usage to a process

(windows 8.1 machine with i3) Is it possible to put a process using 100% of my CPU? I have a rather "slow poke" CPU and after a while working with an application, it gets really slow. I'm wondering ...
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1answer
16 views

Processor Throttling, Speeds and Battery life

Does throttling the CPU down give you more battery life? Does i3 give you more battery life over an i7? Just I've not had the options to really test this theory as it requires having the same laptops ...
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1answer
39 views

overclocking Dell Inspiron 1545 laptop/ upgrading ram

I'm trying to upgrade my laptop (dell inspiron 1545). i'm planning on upgrading the ram, but i'm looking at bus speed and im not entirely sure what to get. I was considering overclocking my system ...
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3answers
2k views

Why is my laptop both dual core and quad core at the same time [duplicate]

I bought an Alienwaremx14 with the following specifications , it is clearly stated here that my CPU is dual core However when i open Window task manager , I was shocked to find out I had four CPU ...
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2answers
51 views

Upgrading my motherboard completely [duplicate]

I have a terrible motherboard: Manufacturer: Foxconn Model: 2AB1 Chipset: AMD 785G Southbridge: AMD SB700 Brand: American MegaTrends INC. It wont let me overclock my CPU, so I've decided to upgrade ...
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1answer
51 views

How to speed up my computer? [closed]

I just bought new computer last week. This is my computer information: Operating System: Windows 8 Pro 64-bit; Intel Core i5 4570 CPU 3.20GHz (4 CPUs) ~ 3.2 GHz Memory: 4GB RAM, page file 12 GB ...
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1answer
26 views

MIPS as a measurement of raw integer data processing

I'm looking for a way to contextualize generational differences in computing performance. Is this a correct application of the MIPS measurement? MOS 6502 - 0.500 MIPS at 1 MHz. As an 8-bit CPU it ...
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1answer
18 views

Why wont my i5 fit my MSI model P67A-S40?

The quad i5 I bought for my new desktop is an i5-4670K LGA1150 My motherboard is a MSI P67A-S40 Core i7 socket 1155 Motherboard w/ Intel P67 Express Chipset USB 3 Does the fact that Core i7 is ...
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1answer
34 views

Computer Build for VM's: Slow behavior normal?

I've custom built a computer for work. The main idea (for security reasons mostly) is to use one VM exclusively for work (mainly 3rd party windows applications that work with PostgresSQL) and another ...
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1answer
24 views

How to overclock CPU using only FSB?

According to my BIOS the CPU temperature and the system temperature are 16°C and 18°C respectively for Idle on stock air cooling. (It used to be 40°C and 48°C when I kept my computer inside a case. ...
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39 views

Poor FPS with combo of R9 290 and FX8350

For some reason, since building my PC I have been receiving poor FPS in the majority of games I have played. I have been hunting for hours as to the cause of the issue, I just want to enjoy using my ...
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70 views

Low CPU performance with low usage and clock - Windows 8.1

I recently deleted everything from my PC and reinstalled Windows 8.1 from scratch. When I first booted into Windows everything was extremely slow though the CPU usage was very low (about 1%). After ...
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25 views

SHCreateStreamOnFileEX thread in explorer.exe using high cpu

My computer: Dell, i5 2410m CPU , Windows 8 OS Symptoms: -when windows explorer is running, high (~ 40 % ) CPU usage. -explorer, or the desktop does not refresh automtically What I've found ...
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0answers
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Experiences with pc stability

I've always had a problem with the stability of the pcs I use, so my current one died a few days ago ( something wrong with the cpu, no more information was given in the 20+ WHEA BSODS ), and the ...
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1answer
10 views

How does multi-core architecture work with regard to parellelism?

I think I am correct in saying that scheduling is the/a main principle of the single core CPU, where the CPU is interrupted when switching from processing one set of instructions belonging to one ...
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0answers
32 views

Malware on my Linux? Cant see on top/htop but CPU/Mem Usage is high

Over about the last week or two, I have been seeing something odd with my Linux mint PC. Over a day or 2, at some point, my CPU usage hits and saturates at or near 100 at some point (according to my ...
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26 views

PCI-Express Processor/Co-processor cards

I am hoping someone might be able to help: In the days when I started with computing (C64 and later Amigas) expansion slot cards with co-processing ability were relatively common. I am looking for ...
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1answer
38 views

Can I use both my internal and external graphics card in same system?

My motherboard has an integrated ATI Radeon HD 3000 graphics and I had Nvidia GT 610 2gb external graphics card as well. I'm having a Gigabyte GA-78LMT-S2 Motherboard, AMD 4 GHz AM3+ FX-4300 Four-Core ...
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0answers
34 views

CPU Causing Lags, Problems in Gameserver

I have recently realised that I was wrong about whether a server was dedicated or not (please see this), but however the gameserver applications that run on the dedicated server lag. This problem is ...
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1answer
30 views

What is the difference between “Memory address” and “Program counter” registers?

What is the difference between "Memory address" and "Program counter" in CPU registers?
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17 views

HP Z-600 Workstation does not use all RAM or cores

I have an HP Z-600 Workstation running on Windows 7 Professional w/ a NVIDIA Quadro 4000 Graphics Card, 48 GB RAM and (2) 6-core processors for a total of 12 cores. When I perform a heavy operation ...
6
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1answer
550 views

What does the MHz of RAM really mean?

Countless of times I've heard and read that RAM-memory can have different speeds - denoted as MHz (e.g. 1066 MHz). However, what this frequency really is has never been explained to me and I'm having ...
0
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1answer
21 views

CPU Cooling fan trouble on Notebook

I'm using lenovo IdeaPad Z370 I just cleaned my fan and replaced thermal paste but the temperature still heating. based on Psensors the temp very high: I checked the fan again, I keep the back ...
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2answers
44 views

Playing music while compiling code lags the music, what kind of laptop CPUs avoid this? [closed]

When I play music while compiling code on my laptop (Intel Core 2 Duo T8300), the music stutters and lags. In terms of laptops, what Intel CPUs are capable of compiling without interruptions in my ...
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1answer
42 views

Which is the biggest number of cores in a processor which is available on the market? [closed]

I know about single core,dual core and quad core processors,but I have no idea how many cores a processor could have at the moment.I mean,are there octa core,deca core or even better processors ...
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DSP working at 100% - Will a Sound card upgrade fix that?

As the title suggests, I'm doing some editing in Ardour and during the export, the status indicators in the top right corner states the DSP unit consistently working at 100%. This definitely shows ...
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1answer
44 views

AMD Phenom II x4 940 Black edition Pinout?

So I got an AMD Phenom II x4 940 Black Edition. The number on it is HDZ940XCJ4DGI. It uses an AM2+ socket. I think the important part is the socket, but I'm not sure. I'm trying to find the power and ...
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1answer
27 views

/proc/cpuinfo doesn't show CPU frequency at all

/proc/cpuinfo doesn't show CPU frequency at all. I built the kernel on my own. Did I miss some kernel configuration? pi@raspberrypi ~ $ cat /proc/cpuinfo processor : 0 model name : ...
0
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1answer
118 views

Ubuntu 13.10 High CPU Usage

I recently installed the latest version of Ubuntu. It runs great but there is one problem. Very high CPU loads. When I have chrome open, the computer is commonly running at about 50% load. When ...