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

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Wrong architecture or manufacturer - conflicting information

This is what I get from the set processor(Environment variable) command in 64-bit Windows 7: PROCESSOR_ARCHITECTURE = AMD64 PROCESSOR_IDENTIFIER = Intel64 Family 6 Model 58 Stepping 9, ...
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1answer
15 views

What is this logic component?

This is from http://www.cis.upenn.edu/~milom/cse240-Fall05/handouts/Ch05.pdf , slide 9. From this diagram, I recognize 0001 as the opcode or ADD. I recognize 011, or 3, as the source register and ...
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1answer
3k views

Running a virtual machine on a dedicated processor or core

Our base system runs on Linux but unfortunately the UI has to be on Windows. Its a long story. But thats the requirement. So our idea was to run Windows in a virtual machine using VirtualBox or Xen. ...
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1answer
50 views

Which piece of hardware in my desktop is failing?

Almost 2 years ago I built a custom desktop. This week it seems to be becoming inoperable. It's a dual boot system capable of booting to Windows 7 or Windows 8.1. When I sat down at it the other ...
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2k views

Why does my laptop's CPU intermittently run REALLY slow?

My laptop's CPU is an Intel P8400, rated for operation at 2.26GHz. However, sometimes it starts running really slow: the computer becomes nigh unusable, and utilities like CPU-Z show clock speeds in ...
2
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2answers
964 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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17 views

i5-4960k 3.5GHz running at only 0.8GHz

I recently built a gaming PC (detailed specs listed below), however the CPU seems to be extremely limited. Specs: MSI z97 Gaming 5 Motherboard Intel i5-4960k 3.5GHz CPU MSI GTX 970 Graphics Card 8GB ...
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1answer
2k views

Flash stream makes my internet slow and cpu rush

When I try to watch a live Flash stream, my CPU usage goes up to 75% and my Internet speed goes down. If I run a test before the video-stream, my speed is ~40/10Mbps and during the stream it drops to ...
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3answers
4k views

Mac OS X Server 10.6.6 “disables” CPU in VMware Fusion

I installed Mac OS X Server 10.6.0 in VMWare Fusion the other night and it worked perfectly, until I ran Software Update. I upgraded to 10.6.6 through the combo updater, and now when I start the VM it ...
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1answer
12 views

xfx750i support for intel pentium G3240

I have a XFX750i Motherboard and want to upgrade my CPU to Intel Pentium G3240, or Intel Pentium G3580. So my question is whether my Motherboard will support either of these CPUS??
2
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1answer
5k views

Differences between Intel i7 “M” and “U” series

What are differences between 4th-gen i7 M and U processors? I know about: core voltage TDP socket price But is there something more? Some differences like slower cache, reduced instruction set?
2
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1answer
4k views

Should I clean and re-apply thermal paste to my CPU every time I remove the heatsink?

Should I clean and re-apply thermal paste to my CPU every time I remove the heatsink? It's a bother to remove and re-apply it, plus I wonder if having fresh paste is worth the risk of handling the ...
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3answers
4k views

How can manufacturers put the specs of overclocking speeds when the whole point of overclocking is it's not known? [closed]

Some retailers really play up the overclocking capabilities of CPUs. For example, in the advertisement for this Intel Core i7-5820K processor, it says it can be overclocked to 3.6 GHz. How is that ...
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17 views

stopping windows from undoing overclock settings

I have managed to overclock my CPU from 2.5 to 3.0 GHz, my BIOS says so at the top. But when I load coretemp after windows boots, it says my CPU is only at the original 2.5GHz. Is this just coretemp ...
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4answers
63k views

How to reduce Google Chrome's CPU usage?

I have started using Google Chrome (up to date) on Windows 7 (everything up to date) on a clean install I did a few days ago and compared to Firefox I am seeing huge CPU spikes (up to 100% CPU ...
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2answers
37 views

Does MotherBoard limit RAM?

http://www.findlaptopdriver.com/hewlett-packard-09e0h-mainboard-specifications/ ^^ That page lists the specs of my motherboard. It says that it can support 4 x 240-pin DDR2 DIMM slots Supports DDR2 ...
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1answer
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What hardware is needed to support ECC UDIMM / ECC RDIMM

There are 2 types of server RAM's UDIMM unbuffered (or unregistered) ECC (Error correction) RDIMM registered (buffered) ECC memories. The main difference between them is that UDIMM are using CPU's ...
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2answers
74 views

Laptop shut down randomly when temperature is low

Basic info of my laptop: 3.5-year-old Samsung RF411, Win7, no hardware change since purchase, Windows disk & memory check all OK, passed memtest86+ test. Recently, it randomly shuts down/blue ...
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40k views

Are there solutions that can limit the CPU usage of a process?

I am using an old laptop and doing heavy processing that needs high CPU usage for a long time (~30mins - 2hours). When the process puts heavy load on CPU for a long time, CPU overheats and computer ...
0
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1answer
31 views

High CPU usage on Linux

I have a process that is called gis taking 100% of the cpu (sub-cpu) on one server and 3 % on another similar server (running as HA-pair) All other servers have are using 2-3% of cpu as well Is ...
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2answers
986 views

Do the AMD Phenom-II chips have the TLB/errata 298 problem?

I am looking at building a new PC and thought the AMD Phenom-II X4's were a great value for my needs. I know that the older Phenom chips with "50" at the end of the model number were the fixed ...
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7 views

Processing A Queue Of Messages Slow (Centos 06) [closed]

I am new to programming and servers. However I have a VPS with 2 X 2.2GHZ cores and 2GB RAM. Its a CentOS 6 with cPanel I have a simple PHP script that reads messages from a queue (via stomp). Each ...
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2answers
74 views

Going silent: will an SSD with a newer but 'slower' CPU run as fast? [closed]

I currently have a relatively old (2009) Shuttle XPC with an AMD Phenom X2 550 3.10GHz and 2 SATA HDD drives. I use it as my work computer, usually running a couple of browsers, XAMPP, 2 or 3 ...
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0answers
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Why does sensors-detect only see my coretemp-isa-000 adapter?

I am running Kubuntu 14.04 with an intel i7-4790k cpu and ASRock extreme 6/ac motherboard, but sensors-detect does not give me anything but the core ISA adapter. I know I can sense fan speeds on the ...
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38 views

How do I identify counterfeit hardware?

A peer recently told me to be aware of counterfeit Intel CPUs. I built my PC just last year and now I’m afraid I might be affected. How would I discover counterfeit hardware? My PC: GPU: Asus GTX 780 ...
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1answer
18 views

When MS offers a UPDATE choice between [x64 System] and [blank] are they talking about OS or CPU bits

When planning to install a UPDATE to repair a conflict the Microsoft knowledge base offers a choice of two types. Notably one intended [for x64-based system] and the other a generic [] this is CPU ...
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2answers
6k views

Mobile CPU vs. Ultra-low voltage CPU: performance [closed]

I'm choosing a new laptop and one of the questions is a type of CPU — mobile or ultra-low voltage. If to be more precise, I'm torn between two models of Intel Core i5 — i5-2410M (Sandy Bridge) and ...
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1answer
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High Disk I/O and CPU usage of System Process in “System Volume Information”

I've a problem with high disk IO and cpu usage from the system process. With the performance monitor I can see that it writes and reads about 100MB/s froM "System Volume Information". I tried to get ...
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24 views

System Interrupts and Antimalware Service Executable eating up CPU

I have Windows 8.1 Pro N x64 on my Toshiba Satellite L505D-S5965 and there are two processes in Task Manager that is eating up my CPU. System Interrupts take up 1%-29% of CPU Power (It changes a lot) ...
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WPA shows NIC driver DPC fragment running for 232 milliseconds

I'm stress testing my UDP proxy on a machine with 8 logical CPUs. At around 14 thousand UDP clients, one of the CPUs (CPU 4) starts spiking and UDP throughput (as shown by Task Manager) plummets to ...
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3k views

Need program to monitor Laptop CPU and GPU temperatures - with SHUTDOWN support [closed]

I just received my HP TX2500 tablet back from laptop service (fried ATI GPU) and I need software to monitor temperatures which supports emergency system shutdown after it surpasses a specified limit.
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367 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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1answer
23 views

CPU Load + Frequency per core in linux terminal?

I am doing scientific computing and I need to keep an eye on the cpu frequency and load of each core (there are 2 cores, on Ubuntu 14.04 w/ Gnome3). I can see the frequency with this bash script: ...
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2answers
638 views

Does my GPU finally needs thermal compound?

I have the following PC configuration and since September 2011 when I bought and assembled it the only maintenance I did was cleaning every fans with compressed air. SSD: Crucial RealSSD M4 128GB ...
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Is my motherboard defective?

Last month I bought a new Esonic motherboard with intel G41 chipset and a 4GB DDr3 1333Mhz Ram and installed my old processor, Intel Dual core E2140 (1.6 Ghz, 800Mhz FSB ) in it. Now after starting ...
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33 views

Disable Badly-Designed Form Element

One of our suppliers has a badly-designed website. On this website, there is a HTML select tag which has, over the years, grown to over 10,000 options long. This is apparently enough to cause large ...
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Intel(R) Xeon(R) CPU E5-2670 0 definition

When I look at the output of /cat/cpuinfo in linux, I get the following: Intel(R) Xeon(R) CPU E5-2670 0 as part of the result. What does that final 0 indicate?
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1answer
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BIOS Update Before Installing CPU

I finally got around to builing a (shiny) new machine. So do I need to update BIOS before installing the new CPU? New hardware components include, Motherboard: ASUS H81M-PLUS CPU: Intel Core ...
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1answer
30 views

Seemingly random reboot during OS installation

I've recently changed my mobo and as usually in this case my OS wouldn't boot properly(I got past login, then, after few seconds, reboot). I proceeded to fail-safe mode, backed up my data and begun ...
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2answers
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High latency, High CPU Interrupts per second 60K/Second causing FPS spikes in games

CPU Profilling Screenshot: i.imgur.com/10ZJNN9.png LatencyMon i.imgur.com/KJbaS3p.png Battlefield Screenshot: i.imgur.com/chpYIjN.jpg Processes: i.imgur.com/wDOpxtq.png 1.3ms of execution time on ...
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1answer
63 views

My cpu claims it is 2.53 ghz but never reaches it. why?

I run cpu burner, and set c state limit to c0. all power savings are disabled and i set multiplier to 20T which is the only allowed turbo multiplier on throttlestop. maybe there could be another ...
0
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1answer
228 views

How to get more BCLK from non-k Corei5 cpu Haswell

I have a Core I5 4570 Haswell with Cooler Master CPU cooler with Asus Z87-plus Board and Asus ATI 7970 and 8 Gig DDR3 Crucial Ram @ 1600 mhz. I'm Using Windows 8.1 X64. It’s a Non-K cpu so the ...
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1answer
67 views

Intel Turbo Boost temperature safety limits? [duplicate]

I have read many posts about Intel turbo boost technology and I am still a little confused. I get how it works and I even went as far as turning it off but it didn't seem to do anything. When I ...
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Any way to disable specific CPU idle (Cx) states?

I just got a new Toshiba Tecra S11 notebook, which has a Core i5 520M CPU, and it appears to suffer from a well-known problem: a high pitched noise when the CPU is idle. Googling around revealed that ...
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2answers
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CPU fan speed not increasing while in game

I have a weird CPU fan issue - as long as I'm playing a game (Cities: Skylines), the CPU fan keeps spinning at the usual RPM while the CPU temperature starts increasing. As expected, the CPU overheats ...
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1answer
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Intel turbo boost falls back to default 2.4GHz just when it's needed most. How can this be resolved?

Intel Turbo Boost has my laptop running at 3300 MHz most of the time. My power settings are maxed out, so it stays there most of the time while I'm browsing the Internet and stuff, but once I run a ...
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where can I find intel opcodes

Where can I find all intel opcodes? I'm talking about actual values of cpu asm commands, 0s and 1s of the keywords such as MOV, JMP, CMP etc. Are they available to the public?
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1answer
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Why is my Lenovo G500 laptop computer running slowly?

The one I’m currently using is a Lenovo G500, Intel Core i7, 2.10 GHz, 8 GB RAM, 1 TB HDD, Windows 8.1 64-bit, AMD Radeon HD 8570M, Intel HD 4000. The problem is that it is slow. It lags, even if I ...
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cpu fan turn on and off in a loop

Suddenly my processpr fan started turning on and off in a loop , it starts for 1-2 sec and turns off and sometimes it turn on after 6-7 loop of on and off their is still no display , few mins ago the ...
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what does CPU% means in `ps auxf` for processes with parent/child relationship?

When I use ps auxf to display process information with ASCII art process hierarchy. Processes with parent/child relation is listed as below. USER PID %CPU %MEM VSZ RSS TTY STAT START ...