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

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How important is GHz for the performance of a PC?

How important is the GHz value for the performance/speed of a PC? I'm asking because I consider to buy this Lenovo notebook but I'm not sure if 1.5 GHz are enough for coding and fast app compiling on ...
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26 views

Chrome uses 100% cpu on youtube after update

Chrome 40 is using 100% cpu when playing youtube videos full screen My CPU is core i5 @ 2ghz with intel 4400 gfx card. it should be able to play them and I dont remember having this issue b4 Chrome ...
3
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1answer
21 views

Why does my non-hyperthreading enabled CPU claim it has hyperthreading?

I was checking my processor for the aesni (hardware aes, "aes" flag) when I discovered the "ht" flag. This, on i7 processors denotes the CPU's ability to do hyperthreading, however, since I own a ...
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29 views

Memory to CPU bandwidth limitations

(sorry for weak english I am not native english) We have now parallelised SIMD arithmetic (like 8 float mulls or divisions in one step) theoretical (but also nearly practical) arithmetical bandwidth ...
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1answer
29 views

AMD processor families and models

I want to use hardware performance monitors on my AMD Opteron 6376 processor. Unfortunately, AMD has many manuals and I can't figure out which one I need from this (partial) list: ...
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0answers
14 views

Does the ASUS P7P55D Motherboard support the 4th generation Intel Core i5 processor?

I have a PC I built based on the ASUS P7P55D motherboard. Currently it has an Intel Core i5-750 LGA1156 processor in it, a 3rd generation processor. I just found out that to run the Intel RealSense ...
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0answers
11 views

PHP - MSSQL configurations cause slow performance [on hold]

I have a problem in my project using PHP and MSSQL. I have the following configurations: 64 GB Ram 16 CPU Intel Xeon SQL Server 16 GB Ram 4 CPU Intel Xeon Web Server And I have the following code: ...
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0answers
13 views

What is the effect of primitive data types on the nature of programming language? [on hold]

why the languages which are having primitive data types in them are considered to be not purely object oriented ,why is said that any language which depends on such primitive data types has actually ...
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1answer
16 views

Can SMT give worse performance than normal CPU?

Is there any chance of SMT (simultaneous multithreading) having worse performance than normal CPU? For example, is it possible for a normal CPU to run two programs one by one and have better ...
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0answers
17 views

Any case where simultaneous multithreading is worse than normal case?

Is there any chance of SMT (simultaneous multithrading) giving worse performance than normal CPU? For example, is it possible for normal CPU to two programs one by one to have better performance than ...
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2answers
30 views

Should I be worried about these temperatures (Australian hot weather)

I've got a relatively old PC with some new SDDs and HDDs added recently. The weather in Western Australia has been hot recently, with temperatures in the high 30s-low 40s (Centigrade). I could hear ...
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0answers
28 views

why is my ram having different benchmark scores on these 2 different motherboards ? [on hold]

RAM: corsair vengeance 8gb dual 1866 cl9 ddr3 mobos: Intel DH67CL Asrock Pro3 R2.0 Both systems run windows 8.1 64bit Intel mb has intel i5 2320 Asrock mb has amd FX-8350 benchmark software used ...
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0answers
24 views

Process named “System” takes up about 30-50% of my CPU which, why? [closed]

I uninstalled realtek drivers, updated all other drivers, scanned whole computer with Norton and then removed it. No solutions yet. When I run the Process Explorer I can see that there's a file named ...
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0answers
27 views

how to solve burning cpu message in Console

When I run Google Earth or any viewer for Second Life, and it shows 3D imagery, the Console shows a message like the following: 26-01-15 19:51:58,000 kernel[0]: process Google Earth[5427] thread ...
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0answers
10 views

Using Nzxt pp500w psu with new hardware - Safe?

I have Nzxt pp500w psu with Nzxt alpha Case. I'm planning an upgrade to the CPU and the motherboard to the following comination: Intel Core i5 4460 3.1Ghz (3.3Ghz Turbo) LGA1150 Arctic Cooling ...
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0answers
16 views

Tool similar to `strace` but for CPU instructions

I am hoping to find something similar to strace which will yield the instructions used by the CPU. For example, I have a simple loop which calculates a sum and prints out every tenth iteration float ...
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1answer
25 views

What causes System Idle Process to run down my CPU so much [duplicate]

I noticed my laptop was being a bit unresponsive so I checked the processes tab and found that System Idle Process is using nearly all of my CPU power. Why is this happening and how do I stop it?
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3answers
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When is CPU cache flushed back to main memory?

If I have a CPU with two cores, each core has it's own L1 cache, is it possible that Core1 and Core2 caches a same part of memory at the same time? If it is possible, what the value of the main memory ...
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1answer
43 views

What's special about Prime95's torture testing?

Overclockers often use Prime95's Torture Test to stress-test their CPUs, but what I don't understand is that why overclockers don't prefer other programs that stress CPU to 100%, for example, anyone ...
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1answer
34 views

CPU and RAM upgrades Inspiron 13 7347 [closed]

I have a Dell Inspiron 13, 7347 i3 (4010U) 2 in 1 laptop. Can I upgrade to a faster CPU (i5 4210U) and if so are there any advantages to doing so (i.e. ability to increase RAM or get better screen ...
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0answers
23 views

Building a new desktop PC for running After Effects for under $500 [closed]

I am a student with a part-time job, so I don't have a very high budget. I want a smooth experience on Adobe After Effects, so I am considering building a new PC for under $500. I know it's not that ...
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0answers
18 views

I have a custom built PC, how do I know which operating system I should use? [closed]

Here is my PC specs: http://puu.sh/eZsKZ/050d8ac7d3.png Hopefully by looking at the image and seeing my specs, you can tell me which OS would be best to use
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1answer
133 views

High CPU usage of “NT Kernel & System” process while Chrome playing YouTube video

I have a headache from searching for solution of my problem. Everytime when I open Google Chrome and any YouTube video (doesn't matter if Flash or HTML5), system process named "NT Kernel & ...
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22 views
+50

Need illustrated advice on Socket P/Merom BSEL mod

I have got Intel T2370(133FSB/Socket P/Merom) CPU and ASUS F5SL(SIS chipset) laptop. I see those as perfect candidates for BSEL pinmod yet I can't find detailed sure description on how to do it. ...
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0answers
25 views

Are any embedded Intel CPUs can be soldered? [closed]

As known most of modern Intel CPU has contact pads instead of contact legs (pin). This makes it impossible to soldering it to the motherboard. But are there any Intel CPUs which has contact legs ...
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41 views

Will this processor work fine with my integrated graphics chipset?

Trying to upgrade my processor from a core 2 duo to a core 2 extreme quad core but can't seem to find anything that says if they're compatible and don't want to spend the money on a processor that ...
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0answers
27 views

AMD CPUs starting to heat more over time?

I'm struggling with the problem for some time now, maybe here is anybody who could answer or give any hint about my observations. I'm using various AMD CPUs since old K6 architecture. I always found ...
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1answer
33 views

What are CPU time, user time, system time respectively?

I find someone asked a similar question, but my problem is NOT user-cpu-time, but user time vs system time vs cpu time. For example, the following info is what I got after a simulation on Linux: User ...
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0answers
31 views

cpu idle state - power plan windows - high pitched noise

I have a Dell XPS 15 9530. One famous problem is the "coil whine" or "high pitched noise" issue. The noise only occurs when (a) the cpu is in IDLE, (b) battery is fully charged. This suggests that ...
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1answer
28 views

Computer wont start (even to bios)

My laptop (Lenovo G580) just wont start. I can't enter even to BIOS. With power supply everything is OK. I tried to boot w\out battery. Nothing changes. RAM: 4GB. laptop is Not overclocked. I also ...
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47 views

ASUS X99-Deluxe Mobo: Failure to post + Code 00 - What precisely does it mean? [closed]

I am attempting my first build (with tech consultation from my veteran friend). Once we had the whole thing together, it failed to post. The motherboard displayed a q-code of 00. In my searching, ...
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1answer
37 views

Why the number of CPU's so Large

I was installing Android studio and just so that I could delete the process I had my Task manager open and Saw that the CPU number was reaching 40 somethimes. How is this done, are multiple CPU ...
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1answer
34 views

Ruby using 100% CPU on OSX

I'm doing web development and have Ruby running a bunch of tasks.. Grunt serve, Sublime plugins, Brew etc... Nothing fancy. Just some npm installs and a grunt serve command inherited from ...
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2answers
2k views

Determine which CPU a process is running on

Using Sysinternals' Process Explorer, is there a column that can be used to indicate which CPU a process is running on? If no column, is there some other way?
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1answer
23 views

Django's dev server causes permanent high CPU load with Python 3

Django's development server runs under Python 2.7.5 (on Windows 7) with a rather constant (idle) load of about 1-3% on my test system - no page loads or other calculations done. Switching to Python ...
0
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1answer
31 views

Does a graphics card affect video playback?

I'm looking at buying a new laptop, primarily for playing movies with VLC, browsing, using Microsoft Office, and a bit of coding. The trouble I had with my old laptop, (a dual core celeron running ...
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1answer
55 views

Is there a guarantee that when numbering cores - every 2 cores of Hyper Threading are located next? [on hold]

Is there a guarantee that when numbering cores - every 2 cores of Hyper Threading are located next in Intel CPU x86_64? I.e. HT-Cores with number 0 and 1 located on physical core №0 HT 2 & 3 ...
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1answer
20 views

CPU cooler size [closed]

I want to change my CPU cooler because it makes too much noise, I only don't know if this one fits and if it cools better. The one I have: http://www.geeks.com/details.asp?invtid=E30307-001-R The ...
0
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1answer
14 views

Virtualisation possibilities with MSI ge40 (intel 4702MQ)

I have this laptop. I want to run Linux Mint, and run Windows 8.1 in a VM. The thing is, that i would like to play some games on Windows. That will not work properly in Wine, i've tested it. So i've ...
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2answers
37 views

Why is maximum CPU utilization a major objective while constructing any scheduling algorithm? [closed]

I just wanted to ask that what is the reason behind making the maximum utilization of the processor ,that is ,whenever at any instant of time ,the scheduler makes sure that the processor must not ...
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0answers
21 views

What Xeon is the closest equivalent to the Core i7-4790K? [duplicate]

I am planning to build a workstation whose main requirements are high single-thread performance, support for ECC memory, and a degree of energy efficiency. The second of these requirements leads me to ...
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0answers
18 views

Two of four cores are running hotter

I have an Intel Core 2 Quad 8300 (with stock HSF) sitting in an Asus P5Q-E. I've just re-applied some thermal paste due to the CPU getting too hot (low 60C). I'm using HWiNFO64 to get temperature ...
0
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1answer
15 views

I can't update windows 8 to 8.1 under virtual box on my macbook pro

I installed windows 8 on my macbook pro under virtualbox. Now I want to update it to 8.1 with the store (free), but I get the error: You can't update because this doesn't support de CPU of your PC. ...
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2answers
40 views

Why would my RPC server use 5x CPU when moving to a newer Linux kernel?

We're kind of running into a wall here, so I figured it was worth asking on this site. We have a Java process which serves up old Sun RPC connections as a compatiblility layer into a new system. On ...
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3answers
61 views

Two CPUs as a Single System

I don't know whether this is a foolish question or not. I have Googled a little and posting this one. Is there a way to make two separate dual core systems to run as a single quad core system under a ...
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New motherboard just start in a special case but no display

Hi wanting to give a facelift to my current pc, I bought a mother board ( ASUS Z87 -c) and an i5 4670k cooled by Hyper 212 Evo, I build it and wants to test if everything works. For this I unplug the ...
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1answer
50 views

3-pin CPU cooler on socket 1150 has allways only constant fixed fan speed

I have following PC configuration MB ASUS Z97-P with Intel Core i5-4460 Cooler Master X Dream i117 As per here the cooler works well on 1150 socket. But ASUS Fan Xpert cannot adjust the cooler ...
0
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1answer
810 views

Can the Intel Atom Processor Z3735F play 1080p 60fps YouTube videos without dropping frames?

Intel announced the Compute Stick running on the Atom Z3735F processor. If buy this product, will I be able to watch YouTube videos at 1080p 60fps without dropping any frames? I am looking at the ...
0
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1answer
44 views

Lowering DDR3 speed back to 1333 after enabling XMP

I have following setup: GA-P55-UD3 Motherboard CPU i5-750 2.67Ghz I recently bought 8GB of Kingston HyperX 1600Mhz CL9 RAM but my system showed it as running at 1333Mhz so following some internet ...
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1answer
33 views

What manages IO between a buffer and a device?

If I am correct, a buffer is used as an intermediate between a CPU and a device, to free the CPU from waiting for the IO with the device to complete, and to let the CPU do other things Since the cpu ...