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

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New laptop's performance not very good. Is it defective or normal?

About a week ago I bought a new laptop. It's a Dell Inspiron 15 5548. It has an i7-5500U CPU @ 2.4 GHz, and 16GB of RAM. It was about $1000. I don't game or do anything very strenuous to the ...
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22 views

How to reduce CPU on a Windows Share?

A process writes small files of size 30 KB to the Windows share in an interval of 1- 5 minutes. Another application which is running on a remote Linux machine is accessing those files. As this is a ...
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1answer
49 views

How to set CPU frequency on OSX?

My colleagues have been complaining about my computer making too much noise, and they're constantly asking me to do something about it. On my Linux, I used to set a lower CPU frequency to avoid ...
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4answers
129 views

Core i3 vs Core i5 [closed]

I'm in a dilemma to choose between Intel Core i3 and Core i5 CPUs. I'll be using Microsoft Office along with some browsing and some other general purpose activities. Will I be seeing a big difference ...
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1answer
64 views

Computer crashing about 20sec into booting (even in BIOS). CPU or Motherboard?

EDIT: we seem to have narrowed the problem to CPU or Motherboard. Is there any way I can identify the cause between these 2 without a spare part to test? I was playing Minecraft for the first time on ...
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0answers
12 views

AIDA64 monitores only HDD temperature

I installed AIDA64 extreme edition on my laptop to monitor laptop CPU temperature, but, surprisingly, there are no other temperatures but HDD's temperature. I checked bios for some settings, but my ...
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1answer
44 views

CPU Intel Core i7-4790 PCI support

I am planning to buy Intel Core i7-4790 and use it in combination with Asus Z97-AR motherboard. The motherboard has 2 PCI slots, will these be still working with the CPU? The specs on Intel web site ...
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1answer
48 views

How can I choose the right memory Mhz size in the light of the motherboard's and CPU's MHz? [closed]

I'm planning to build a PC: Gigabyte GA-Z97X-SOC DDR3 2400Mhz(OC) motherboard http://www.gigabyte.com/products/product-page.aspx?pid=4967#ov Intel Core i7-4790K Processor DDR3 and DDR3L 1333/1600 at ...
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2answers
36 views

CPU running slower than normal - and hotter

Some liquid got spilled on my PC. I cleaned it up but when trying to turn it on I noticed that there were some drops of water on the CPU (AMD). The PC wouldn't turn on - it would start up, but nothing ...
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1answer
20 views

Alienware M14x going real hot in Idle

I have an Alienware M14x which I started noticing the fans going extremely high at idle, pretty much right after a boot too. I downloaded HWMonitor to check what's up and it turns out it's at about ...
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2answers
29 views

Will process run slower on one thread rather than one core

So many CPUs now come with 2/4 cores and 4/8 threads. There are also some CPUs that are 4 core & 4 threads. Would that mean that unparalleled process will run slower on the same clock cycle CPU ...
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2answers
59 views

How do I decide between CPUs with different clock speeds, number of cores and L3 cache sizes?

I am a web designer and I'm considering purchasing a Mac Pro (one of the new cylindrical ones). I've scoured the internet for information on the different processor options that they offer, but I'm ...
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3answers
1k views

Does a CPU heatsink need to cover the entire CPU package? (Xeon E5-1650, Arctic Freezer i11)

I've just purchased an Intel Xeon E5-1650-V3, which I intend to use in a workstation (mid-tower). As a CPU cooler, I bought an Arctic Freezer i11. (The motherboard is an ASrock X99 Extreme4.) I've ...
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4answers
321 views

What is a safe operating temperature for a CPU under heavy workload?

I have noticed if I leave a render process for an extended period of time, the CPU will get to a high temperature and start buzzing. I always immediately cancel/halt the process and let it cool down ...
2
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1answer
172 views

CPU low performance

I've been using an Asus laptop for almost 3 years. During that time I never had any kind of issues, and every program used to run pretty smoothly. A few days ago, after patching some Windows updates, ...
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0answers
16 views

What happens if the associativity level is greater than the cache size?

I am working on a computer organization caching problem The Problem: What happens if the associativity level is greater than the cache size? I know that associativity level is how many blocks are ...
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1answer
42 views

Is it good or bad configuration [closed]

I already two times this system is burned .BIOS was re setted . and the system engineer told that better to change mother board. please help me really i need to change my mother board? Open Hardware ...
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1answer
39 views

Concerning Dual Processor Motherboards

I've read about dual processor mother boards, but some things don't seem to make themselves clear. I have a few questions: Is a computer with two 1GHz single-core CPUs just as fast as a computer ...
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1answer
29 views

upgrading to new board worth it (keeping old cpu) ? From SATA2/DDR2 to SATA3/DDR3

I currently own a AMD Phenom II X4 955 with a AM3 board (with SATA2 only and DDR2). I recently bought a Samsung 850 EVO ssd drive (250GB) for the OS. I know I'm not using my SATA3 SSD drive to it's ...
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0answers
13 views

Will this address result in a cache hit or miss for these cache mapping functions?

The Problem: A CPU produces the following sequence of read addresses in hex.    Suppose the cache is empty to begin with and assuming an LRU replacement, determine whether each address ...
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2answers
44 views

Lag on Windows 7 whenever typing [closed]

Whenever I type in windows 7 my cpu usage increases dramatically and my words "cant keep up". I have tried using another keyboard and using ccleaner however none of this works. I don't think this is ...
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0answers
86 views

How many bits are in the address field for a directly mapped cache?

Here is the problem I am working on: The Problem: " A high speed workstation has 64 bit words and 64 bit addresses with address resolution at the byte level. Assuming a direct mapped cache with 8192 ...
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1answer
49 views

Is there a way to lower CPU speed on a single process?

I am trying to play an old game on a relatively new desktop. And the mouse scroll rate and game speed are way to fast even when set to the lowest in game. I would like to try underclocking the cpu. ...
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1answer
54 views

How many words can be in the address space?

Here is the problem I am working on The Problem: A high speed workstation has 64 bit words and 64 bit addresses with address resolution at the byte level. How many words can in be in the address ...
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1answer
69 views

Is it possible to run 2 different motherboards in parallel? [closed]

I want to run a motherboard with a 64-bit CPU and another motherboard with a 32-bit CPU etc. etc. in parallel to form a kind of "Super PC" for my hard core games. Question 1 Is it possible in ...
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4answers
479 views

How to limit CPU consumtion of a process group with standard GNU/Linux tools?

I have a bunch of processes of the same name - they take up 100% of my CPU time, I want this to be no more than 50%. How can I do this without installing any extra software?
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15 views

digitalocean server cpu is 75% all the time [migrated]

I have a nice server in digital ocean, it's the 1GB ram size. It has installed: php, mysql, nginx, supervisored, beanstalkd as I installed. But the problem is the I see that all the time the cpu is ...
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1answer
27 views

Can a processor which support DDR3-1600 type of memory also support lower frequency memories?

I want to buy a RAM for "AMD Athlon 5350" processor with specs as mentioned on the link http://www.amd.com/en-us/products/processors/desktop/athlon#. In specification it is written as it will ...
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1answer
30 views

Intel Broadwell Power Consumption and Clock Speed

I'm configuring a new MacBook Pro 15″ 2015 and wanted to know if the processor speed affects the battery life (power consumption) assuming that the work load is identical? 2.5GHz Quad-core Intel Core ...
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0answers
42 views

What is meant by a 32-bit PC vs. 64-bit PC? [duplicate]

What is exactly meant by 32-bit PC and 64-bit PC? Why does 32-bit software run on 64-bit PCs, but 64-bit software doesn't run on 32-bit machines? A 64-bit instruction set is written as 'x64'. Why is ...
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1answer
52 views

How to view total CPU and memory usage of per system user in Linux

I know the top command to see the process of CPU and memory usage, but some users of the system can generate a lot of processes, if I wanna know total CPU and memory usage of an user,I must count it ...
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68 views

Overheating issues, even after suggested remedies

So my computer/Server is overheating on a regular basis, I thought that the issue might be the thermal compound on the heatsink, so I have replaced that (just 20 minutes ago), that seems to have done ...
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0answers
49 views

Abnormally high CPU temperature

My laptop's CPU is too hot, ~93-97° C, nothing major is running, only Google Chrome. SpeedFan and Open Hardware Monitor don't detect any fans, so I can't even see their speed. Is there any way to ...
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2answers
535 views

What happens when laptops reach 100% charge?

I have been reading alot of mixed views on how Lithium Ion batteries work when it comes to laptops. I have the new dell xps 15, with an intel i7 cpu, 16gb ram, and a 512gb ssd. Is it bad for the ...
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1answer
55 views

VT-x on 4790 on H97-D3H-CF

I am trying to enable VT-x on a 4790 CPU and a H97-D3H-CF mainboard to be able to run virtualbox/vagrant. The Intel Processor Identification Utility lists "Intel(R) Virtualization Technology: No". I ...
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0answers
69 views

100% processor utilization with multiple executions of CSISYNCCLIENT.EXE and MSOSYNC.EXE

When I install MS Office 365, my processor runs systematically at 100%. When I look at Windows7 task manager, two processes are executed in multiple times : CSISYNCCLIENT.EXE and MSOSYNC.EXE. Would ...
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1answer
32 views

How can I optimize linux for encoding lots of video or a set of the same cpu intensive tasks?

I have a set of 4-5 machines which almost exclusively encode video all day, and sometimes all night too. I've searched many times to find ways to optimize them for this purpose, but not had any ...
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1answer
62 views

Force ffmpeg to use 100% of CPU

I'm using ffmpeg to extract frames from video, but the process is so slow. Looking at CPU usage I see that ffmpeg use only 50% of my CPU. I've tried also to add -threads 4, but it seems it doesn't ...
3
votes
1answer
35 views

Noise coming from HDD or CPU in headphones

I hear weird high sounds coming from my headphones. It is obvious that it has something to do with HDD or CPU because it's highlight sounds are heard when I it is writing data on HDD but also many ...
0
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1answer
42 views

Netbook not working properly

I am having a netbook of dell inspiron mini with specifications- Operating System: Windows 7 Starter 32-bit (6.1, Build 7601) Service Pack 1 System Model: Inspiron 1018 Processor: Intel(R) Atom(TM) ...
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3answers
68 views

Why is my computer so slow s:

I've had this problem for so long and it's annoying me. Everyone says my computer is bad but I dont get it. on Runescape I get 4 FPS. On LoL my computer just crashes and Skyrim is insanely laggy and ...
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0answers
23 views

Excessive cpu usage of process : Intel(R) Dynamic Platform and Thermal Framework Utility Application

I bought a new pc (a notebook) but now I have a problem, there is installated a program called "Intel(R) Dynamic Platform and Thermal Framework Utility Application". It often uses the 20/30 % of my ...
0
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1answer
61 views

Is the amount of NUMA nodes always equal to sockets?

I have used lscpu to check two servers configuration: [root@localhost ~]# lscpu Architecture: x86_64 ...... Core(s) per socket: 1 Socket(s): 1 NUMA node(s): 1 ...
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2answers
68 views

How does Triple Channel memory differ from Single or Dual?

I'm trying to understand the PHYSICAL difference on the motherboard when it comes to single, dual, triple and quad channel memory. I have a mobo that has 4 black memory slots, each one contains 4GB ...
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1answer
50 views

Why does my CPU not use it's full TDP wattage potential?

I have an Intel Core i7 3610QM (Ivy Bridge) in my laptop. According to Core Temp, the TDP (thermal design power) is 45 watts. However, when turbo boosting to the max (3.1 GHZ) on all 8 threads with ...
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1answer
158 views

Windows 7, cpu at 100%, netsh.exe, node.exe

I'm having a strange problem with my cpu usage. I've seen similar complaints elsewhere, but no real solution. Whatever software I am using, my CPU seems to max out to 100% with seemingly useless ...
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4answers
92 views

Some basic questions about Processor and OS? [closed]

I need an explanation, I have a computer with a processor : Intel Core i7-3770 CPU @ 3.40 Ghz 3.40 Ghz Does this mean I have two processors with a clock rate 3.40 Ghz each ?? Is this a Core ...
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0answers
80 views

In Google Chrome browser, why does Gmail use so much of the CPU when hardware acceleration is enabled?

Here's a screenshot of the issue. On the right, Windows Task Manager showing high Chrome CPU usage. On the left, Chrome's Task Manager showing it's all coming from the Gmail tab. If Hardware ...
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1answer
116 views

Is there a way to reduce the CPU usage of a Gmail tab in Chrome browser?

This is driving me crazy and I hope you can help. Here's a screenshot of the issue. On the right, Windows Task Manager showing high Chrome CPU usage. On the left, Chrome's Task Manager showing it's ...
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1answer
49 views

If a pin was bent during CPU installation would the machine have started at all?

Realistically, if a Pin was bent during install would it have turned on and ran for 30 minutes or so before cutting out, or would it just have not started even once? The machine turned on first time, ...