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

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CPU is hot and CPU fan making very much RPM's and noise. (CPU fan not listed in speedfan)

everyone. Saturday i replaced the motherboard of my computer because my old motherboard wasn't working anymore. Everything went good and after some tries my pc was booting. It was working! I noticed ...
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8 views

Measuring squid proxy bottleneck / requirements

We want to setup a squid proxy server in our company. There will be about 40 parallel connections (20 mobile devices, 20 desktop/laptops). The total bandwidth we have is 6mbps (behind a cisco router ...
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22 views

Special hardware for computer programs to run on modern computers? [on hold]

My mother says that there's a program that communicates with a school over the internet and it needs something "specific" or "special" to work. I asked her, but she says she doesn't know what it is. ...
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32 views

What should I upgrade to speed up my computer for better performance for game playing? [on hold]

My computer is Compaq Presario SR1817CL Desktop PC. It has its original PROCESSOR (AMD Athlon 64 processor 3200+ 2.0GHz) and Motherboard (AmberineM-GL6E) it came with. I did add more memory (3GB), ...
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1answer
24 views

What specs should I consider for playing/streaming 4K to 8K video perfectly?

I am buying a massive, 4K screen, and might consider one closer to 8K instead. Since these screens are very capable of rendering the full brink of every pixel sent to it by a powerful GPU, what specs, ...
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27 views

How to diagnose slow (only for awhile after start) Windows 7 machine?

I've got a Lenovo Ideapad, with a dual core Atom processor and Windows 7 that exhibits some odd behaviour. It's insanely slow right after boot. The disk drive will be lit up solid and grinding away ...
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3answers
41 views

CPU temp is hitting 83 C (181 F) in BIOS: Normal?

My BIOS is reporting that my Intel Core 2 Duo E6400 on a Asus P5B Deluxe is hitting 83 C (181 F). No overclocking. I haven't done anything intensive at all. Just to check SpeedFan hits similar ...
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16 views

What is the proper CPU usage of a process on LInux i.MX6?

I am currently developing an application running on Linux 3.10, for a Freescale i.MX6S (single core). Currently, "top" reports this: top - 03:07:35 up 1:58, 3 users, load average: 0.85, 1.10, ...
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0answers
21 views

replacing fan for laptop..two square component with thermal pad attached

I am replacing the fan on laptop and next to the CPU are 2 small square components that had a blue thermal pad attached, the pad has started coming apart. question is 1. what are those two items? ...
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27 views

Do virtual machines not allow all host CPU extensions?

For convenience's sake I'm trying to run an otherwise "regular" installation of Gentoo Linux as a guest inside VirtualBox on a Windows 7 host. I bootstrapped the installation by using VirtualBox, ...
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2answers
39 views

How does a CPU decide which transistors to use? [on hold]

Perhaps I'm not thinking about this correctly, but when you give the CPU a command such as Multiply Registers (MR) R2,R4 how does it decide which logic gates it will use, is it just the first gates ...
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1answer
69 views

Intel Dynamic Platform and Thermal Framework Settings - what exactly do they do?

Despite the fact that virtually all modern Dell laptops (and probably others) are supposed to have the Intel Dynamic Platform & Thermal Framework Driver installed, I couldn't find any end-user ...
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3answers
46 views

Will I perceive speed improvement with more ram?

I have a Toshiba Satellite L855-S5240. The current specs are, Intel® Core™ i5-2450M Processor2.5 GHz, (3.1 GHz with Turbo Boost Technology 2.0), 3MB L3 Cache Mobile Intel® HM76 Express ...
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0answers
15 views

Building a computer, no output from on board video after power up

My son and I assembled the whole computer including tower, motherboard, cpu + cooler, graphics card, memory, hard disk, monitor, keyboard and mouse. When we power it up, we saw nothing on the screen, ...
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2answers
83 views

CPU usage is 100% because of svchost.exe windows 7

It has been a while now since my laptop started being very slow and cpu usage is 100% almost all the time. I downloaded process monitor and below is the process details that is taking most of the ...
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1answer
49 views

Windows 8.1 x64 installation without PrefetchW Support?

I'm having Intel(R) Pentium(R) 4 CPU 3.00GHz Processor with 2GB RAM. While trying to install Windows 8.1 Pro 64-Bit i gave me an error saying that the processor is not compatible with Windows 8.1 Pro ...
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1answer
32 views

Adaptive per-user CPU quota/priority in Windows 8.1

We have a workstation computer in the office running Win 8.1 where multiple users remotely run cpu-intensive processes at the same time. The problem is that one user can hog the cpu making all ...
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3answers
179 views

Why is CPU performance calculated in frequencies instead of Mbit/s? [on hold]

Why is CPU performance calculated as a frequency, instead of megabits per second? Frequencies are less common in computer terminology.
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3answers
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What does the minimum spec mean in regards to CPU clock speed

Most software provide a minimum and/or recommended spec of hardware in order to the software. Within this list, we're usually informed of a clock speed for the CPU. For example, Visual Studio has, as ...
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0answers
12 views

Speed with multi-cpu motherboard

I'm looking at building a dual-cpu system, but I was wondering if there were any concerns with bottlenecks that I should be aware of since data is going to two different places now. I know that each ...
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0answers
17 views

CPU freezes during heavy processing : Asus Z97C in Linux Mint 17.1

I got a new rig with Asus Z97C, Intel-i5-4690k, Corsair Vengeance 8GB RAM, 128GB SSD, no GPU. I installed Linux Mint 17.1 (based on Ubuntu 14.04.1) on it. Now, when doing something processor ...
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3answers
55 views

What factors other than clock speed influence the performance of a CPU? [duplicate]

Having seen various people test powerful emulators on their computers, I have come to surprise hearing about how one CPU can have triple the clock speed but still have worse single-threaded ...
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12 views

What are the Physical differences between an AM2 and an AM3 CPU?

What are the physical difference/looks between an AM-2 and an AM-3 CPU/Processor. (Are the pins located differently, are they different sizes?)
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4answers
64 views

Random spikes to 100% CPU lasting several minutes, (intervals, duration, processes) W7 PRO Dell E6400

For the last month or so I'm plagued with often, yet unexplainable spikes to 100% CPU load. Usually then Task Manager shows one or two processes taking 50%+ of CPU (not always the same: svchost, ...
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1answer
18 views

Input not supported error in monitor after overclocking the processor

Hi please any help would be appreciated. Here is my PC specs AMD A4-4000, 4GB DDR-3 RAM, windows 8.1+ubuntu 14.04 My trouble started when i tried to overclock my processor by using the gigabyte ...
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3answers
55 views

Can I safely replace a CRT monitor running at (1024x768) with a 21" TFT (1920x1080) HD monitor?

My archaic CRT monitor has a resolution of 1024x768. My GPU is an Intel 82945g chipset, CPU is P4, 1GB RAM running Windows XP. I want to replace the CRT with a TFT which comes with 1366x768 ...
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2answers
52 views

Computer Randomly Powers Off. What's The Cause?

I upgraded my computer a month or two ago now and now every so often, my computer will randomly shutdown (and then restart after about 5 seconds). To clarify, it usually shuts down when coming out of ...
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1answer
18 views

How to tell if it's either the CPU or the Motherboard that is bad?

I have an Acer 5536 laptop that won't boot. I've already tested the memory modules and the hard drive and both are ok. The problem is that I don't know how to tell which one is the problem: the CPU or ...
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34 views

Which of the following instructions can reference a memory location that is #1000 locations from the instruction? [migrated]

I am working on a question from a practice computer organization exam The Problem: Which of the following instructions can reference a memory location that is #1000 locations from the instruction? ...
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1answer
34 views

Wrong architecture or manufacturer - conflicting information [duplicate]

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
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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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28 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
13 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??
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1answer
60 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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1answer
36 views

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
42 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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20 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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1answer
35 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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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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2answers
95 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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0answers
15 views

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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0answers
42 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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2answers
81 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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1answer
23 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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1answer
77 views

How to stop System Interrupts from eating up CPU

I have Windows 8.1 Pro N x64 on my Toshiba Satellite L505D-S5965 and there is a processes in Task Manager that is eating up my CPU. It's called System Interrupts and it takes up 1%-29% of CPU Power ...
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44 views

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 ...
0
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1answer
35 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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0answers
23 views

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?