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

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Intel Core M working temperature

I have bought an Asus Zenbook UX305 laptop. This laptop is fanless, so I think this shouldn't get so hot, with Windows everything go fine, but I am running Ubuntu and this is getting hot, I've ...
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15 views

Which cpus use Tri-state buffer for data bus

I must doing some research about data bus system of cpus and I have to determine which ones use Tri-state buffer and which ones use Mux system for loading common bus . ( it's my computer architecture ...
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34 views

Unexplainable, random CPU lock-ups

Hardware: Acer Aspire XC-603g (stock hardware, no modifications) Almost a year ago, I asked this question on AskUbuntu because I had thought that the problem was with my installation of Ubuntu. ...
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1answer
66 views

What is purpose of clock in CPU

What is the function of the clock signal. I think that when Clock Signal arrives it tells the CPU to make next step (Because each instruction is processed in sequence of microistruction) Example: ...
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21 views

Noise coming from CPU when opening [duplicate]

I have this CPU it's 4 months old and somehow when I power it on, it produces a weird noise. Right now, my remedy is to turn it off for 5-10 minutes and then power it back on. Sound disappears but I'm ...
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1answer
56 views

How to Prevent Sleep Mode when CPU usage is over ___% [closed]

I render animations overnight, but I don't want my computer to be on when its done, so how would I do this?
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1answer
603 views

Windows 10 task manager CPU clock speed exceeds displayed maximum clock speed?

So in the windows task manager, in the performance tab, there's data concerning current clock speed and beside it is stated "maximum speed". Maximum speed is stated 2.00 GHz, which is correct as per ...
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1answer
511 views

How should I deal with DDR3 RAM when faced with a Skylake motherboard that officially supports it and a Skylake CPU that doesn't?

My intention was to place four Kingston DDR3 ValueRAM 4 GB 1.5V Modules at 1333MHz/CL9 on my new H170 (Skylake) motherboard, which officially supports memory running up to 1.65V. However, apparently ...
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3answers
165 views

RAM running at a lower frequency

I own a Dell Vostro 2520 which came with an Intel Core i3 processor and 2GB RAM. I never noticed the RAM frequency before adding RAM. I thought of adding 2GB RAM as my laptop had a second unused slot. ...
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34 views

Dell Inspiron with AMD chip shuts down with heavy usage

I have Debian 6.5 installed on a Dell Inspiron 520. I get the CPU info with less /proc/cpuinfo which results in processor : 0 vendor_id : AuthenticAMD cpu family : 16 model ...
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254 views

CPU usage over 100% (Resource Monitor says 61325297%) after upgrading to Windows 10

Some time ago I posted this question about a problem I found in my PC since I updated my Windows 7 to Windows 10 Pro x64, namely that my Task Manager was constantly showing 100% usage of my CPU even ...
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1answer
344 views

What is a “SKL i7-Entry (AMD Exo XT 4GB)” processor?

Did anyone ever come across this processor: SKL i7-Entry (AMD Exo XT 4GB)? I found it in a dell config: ...
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1answer
160 views

In Prime95, why do small FFTs generate the most heat, despite CPU at 100% for all options?

I've just built a new Skylake PC, and I'm going to see about a bit of overclocking with Prime95 as a stress tester. It works fine in normal use, but with Prime95 I'm noticing a bit of CPU throttling ...
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2answers
133 views

Does my system need a cooling fan?

I've recently built a HTPC, and my research did not suggest that I needed any cooling beyond that provided by the CPU/PSU. Given the specs I describe below, would you say I'm at risk for overheating? ...
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0answers
51 views

Unusual CPU fan behaviour

I've recently installed a copy of Windows 7 on my new disk. The PC is geared towards quiet running, (half-passive PSU cooling, SSD disk) and I was very happy with the noise levels - the CPU fan was ...
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2answers
81 views

Spread VirtualBox VMs over cores

I am using many VirtualBox VMs with different OS on one Ubuntu Linux host for development. Sometimes my scripts get wrong and starts loading 100% of VM cpu. And when one VM loads 100% cpu I cant even ...
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1answer
269 views

Windows 10 - hal.dll / ACPI.sys / ntoskrnl.exe with high cpu (WPR file included)

I have a dell inspiron 3421 with windows 10 enterprise, fresh install. With no programs running, I get 40% cpu usage from "System" and "Interrupts" combined. Searching the problem I downloaded the ...
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24 views

Instructions executed by a processor [duplicate]

Is there any way to get a stream of assembly instructions currently being executed by the processor?
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35 views

Would a renice command increase the CPU performance of a program that is being affected by a non multicore 3rd party app

Superusers and aficionados, I have a MacBook Pro i7 with 4 cores running Logic Pro X. One of the third party Virtual instruments in use is NOT Multicore and thus is caning one thread of CPU ONLY ...
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1answer
248 views

Redhat disable CPU throttling

How can I disable CPU throttling? I need this done in order to properly install atlas. I have checked alot of similar questions on google as well as here on superuser and didn't find a solution. ...
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1answer
120 views

High CPU Temps (Idle and Load) on older processor [closed]

Specs: OS: Windows 10 (64-bit) CPU: Intel i7 960 (Bloomfield) Board: ASUS P6X58D-E CPU Cooling: Stock Problem: I've noticed an increase in my CPU heat within the last couple of days (wasn't ...
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1answer
7k views

Are 6th-Generation Intel Processors Slower Than 4th-Generation?

I'm looking at building a computer for my brother. Back when I built my own I used a 4th-gen CPU. My thinking is "well he should obviously have the latest generation because they say they're always ...
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1answer
85 views

Does the boot start of a PC (POST) use the discrete GPU to render the black-and-white text?

Background of the question: My PC no longer POSTs; no sounds and lights appear at all (I.e., no reaction whatsoever after pressing the power button). I want to isolate the component that is likely ...
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37 views

Difference in Mac Pro processing power / Understanding GeekBench scores

I have heard that GHz is not any longer a valid measure of CPU speed, but then is CPU speed and number of cores a reliable measure of CPU power? I generally read on the net, "well, it depends what ...
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1answer
48 views

Computer not booting up

The hdd light comes up for a few seconds and goes off and the keyboard lights flash for just a millisecond. I tested the power supply with paper clip method and power supply works fine. There's no ...
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1answer
269 views

How can I combine CPU & GPU Graphics for better performance?

Can I "combine" the power of my GPU with my CPU to get more FPS in games and more power for programs ? CPU: Intel i5 4690K which is OC'd to 4.3Ghz with the box cooler GPU: AMD Radeon HD 7750 Saphire ...
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1answer
39 views

2nd generation Intel Processor vs newer gen? [duplicate]

I'm interested in getting a gaming computer by buying an HP Z210 for $210 which is actually pretty decent with 4 gigs of 1333 ram and a quad core i5 running at 3.2 or something like that and slapping ...
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28 views

Desktop PC randomly hibernating/restarting – hardware or software issue?

I've been experiencing some really bizarre issues with my desktop PC hibernating (and then sometimes bringing itself back up) at seemingly random intervals. The problem first presented itself this ...
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22 views

After repairing my computer is there anyway I can know its fully functioning? [duplicate]

I dropped my laptop from approximately 1 foot in the air and it was subsequently repaired by a computer technician. He said there was some damage to the GPU. But after being repaired, I think the ...
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2answers
129 views

Is it thermal paste conducting heat from integrated GPU? Why is it different from CPU's thermal paste?

I have an Asus eee pc 1015ped. Upon disassembly I've found out the heat sink cools 2 chips. The one on the left is obviously the CPU and the one on the right is the integrated GPU I assume. And ...
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18 views

What does 'processor (None)' mean in lshw's output?

I am running a VM on Azure with 4-cores. I typed lshw -short and got the following: H/W path Device Class Description =============================================== ...
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1answer
25 views

Processors and virtual/physical addresses

In nutshell, as I understand memory management, processor produces virtual addresses. These addresses are translated to corresponding physical addresses using per-process address table by MMU (with ...
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0answers
35 views

Is It Common for a Laptop Heatsink to Have a Temperature Sensor Near The Main Fan?

I'm using SpeedFan to control my laptop temperature. Among the readings for outright local CPU, GPU, HDD, DIMM, Core, and ACPI temperature, there is an unknown reading marked "Temp4". The temperature ...
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1answer
58 views

How to choose motherboard for AMD APU

I'm a little confused when it comes to choosing an AMD APU board. To use the onboard graphics of the APU (specifically the AMD 8350), does the board need a graphic output?
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132 views

i7 4790K | Shutdown while running Prime95 and RealBench

The computer experiences a hard reset instantly with Prime95 "Small FFTs" torture test (also with the "Blend" test but after 30 minutes) and after 4-5 passess of RealBench benchmark without any kind ...
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62 views

Is ALU used for all instructions?

On wikipedia page about Von Neumann Architecture is this picture. There are a lot of similar pictures like this.(Also in a lot of articles about Von Neumann Architecture is that only ALU execute ...
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82 views

Windows 7 bizarrely system slows down around 15 minutes after boot

I recently installed new hardware in my desktop rig (CPU, MB & RAM) and did a fresh Windows 7 install. The recipe for pure happiness one should think, but sadly I’ve run into a really frustrating ...
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20 views

Do the ARM CPUs have legacy support/compatibility?

Traditionally the x86 CPUs included legacy support for older CPUs. This is: modern CPUs always could (can) execute programs designed for older CPUs. I have seen there are multiple ARM CPUs: ARMhf, ...
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1answer
78 views

Mac Pro upgrade options [closed]

Currently I have two Mac Pro towers (3,1 and 5,1) with the following configurations and I am planning some upgrades (described below). I just want to double check if everything sounds right and ...
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1answer
153 views

Has my CPU Intel Xeon E5-2650 integrated graphics?

I need to mod my GPU with a custom cooling-system, and wanted to know if I can simply run my PC without the GPU in it. It seems like I should be searching for terms like "integrated graphics", "CPU ...
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2answers
75 views

Why did the system repair guy leave this two wires out like this?

Why system repair guy leave this two wires out like this? Will it cause problem in future?
3
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1answer
65 views

Can CPU overheating cause data corruption?

Background: I realized recently thanks to dmesg and syslog that my CPU has been overheating since May. No overclocking. I have an Intel® Core™ i5-2500K, and the stock cooler was simply defective as ...
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1answer
228 views

ECC ram memory in MSI X99S

I bought motherboard MSI X99S Krait Edition and I found 1x16 GB RAM DDR4 with ECC. Can I run motherboard with this RAM? I don't know if it supports ECC. Where I can find? Can I use ECC memory on ...
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24 views

How to install Dynatron G17 into Gigabyte ga-ex58-ud3r board?

First time building a PC and I have everything ready, except for the CPU cooler. There's nothing on the inside of the case for me to attach it and neither the board nor the cooler came with a bracket ...
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2answers
88 views

What's the point of heat pipes? [closed]

I've been asking myself this question for probably more than 10 years now... What's the point of heat pipes? For example on a CPU cooler. It just seems super unreasonable to me that 4,6,8 or I don't ...
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0answers
32 views

Is different data stored in L1 cache in comparison with L2 and L3?

Since L1 is faster to access however is smaller, what gets stored here? And what goes to L2 and L3. I'm wanting to know why data goes to L1 or L2 or L3. Do instructions only go in L1? And why would ...
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66 views

What is meant by timer resolution in microseconds?

Sorry for putting up too simple of a question but I wanted to know what It meant by timer resolution in microseconds and resolution in nanoseconds? On what Basis this resolution is chosen ? Is it ...
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2answers
69 views

If a 32-bit microprocessor has 24-bits of address space, why is the answer for the maximum number of addresses (2^24) given in bytes and not bits?

I'm working on this for homework and it seems all of my classmates and various online sources are saying that the simple calculation of 2^24-bits results in ~16,000,000-bytes instead of bits. Why is ...
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2answers
57 views

Is there a way to find the integrated graphics for my processor?

For a computer (even with a GPU), is there a way to find out what kind of integrated graphics would be on my processor and a way to test the performance? My Processor: Intel(R) Core(TM) i7-3820 CPU @ ...
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1answer
109 views

How better is a desktop processor than a mobile processor?

Inspired by this question and its answer: What's the difference between mobile and desktop processors? The question and the answer are great to have some insight on the subject. But I'd like to ...