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

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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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2answers
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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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0answers
13 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
24 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
24 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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Process named “System” takes up about 30-50% of my CPU which, why? [on hold]

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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3answers
2k views

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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24 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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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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1answer
41 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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2answers
7k views

How to test if a processor is heat damaged?

I have an older PC with an Phenom II processor that we use as a kids' computer. It's been running fine until about a week ago when it randomly shut down and would not get past the Windows load screen ...
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1answer
26 views

CPU and RAM upgrades Inspiron 13 7347 [on hold]

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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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 ...
-1
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0answers
74 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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0answers
18 views

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

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
17 views

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

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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39 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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2answers
1k views

CPU fan turns on and off repeatedly without booting

My PC has suddenly stopped starting up. On checking with case open, the CPU fan starts running when the power is turned on, but it stops after about 2-3 seconds, restarts again after about 2-3 seconds ...
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0answers
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Are any embedded Intel CPUs can be soldered? [on hold]

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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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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1answer
32 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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1answer
77 views

How is CPU time measured on Windows?

I am currently creating a program which identifies processes which are hung/out-of-control, and using an entire CPU core. The program then terminates them, so the CPU usage can be kept under control. ...
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25 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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25 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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36 views

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

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
36 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
27 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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6answers
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Where exactly L1, L2 and L3 Caches located in computer?

Where exactly L1, L2 and L3 Caches Located in computer ? I know, we use Cache to increase performance by picking DATA and INSTRUCTIONS from Cache rather than Main Memory. Following are my questions ...
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2answers
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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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3answers
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what does 2 core 4 threads mean in cpu?

I wanted to know what does 2 cores 4 threads mean about a cpu? I am talking about this cpu which i have http://ark.intel.com/products/47341/Intel-Core-i5-520M-Processor-3M-Cache-2_40-GHz I initially ...
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1answer
19 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 ...
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12answers
99k views

CPU Cores: The more the better?

I currently have a dual-core processor at work and a quad-core at home. I've noticed both PCs are pretty equal as far as launching applications/surfing the web. The difference I can see is that my ...
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0answers
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how to choose between high cpu frequency and hyper-threading [closed]

I'm facing a choice between E5-4620 and E5-4627. The differences are E5-4620 has 20M smart cache, hyper-threading tech and cheaper while E5-4627 has 16M smart cache but E5-4627 has frequency from ...
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147 views

Game keeps overheating laptop?

I have an Acer TravelMate laptop.Recently I installed Portal 1 and whenever I play it, the CPU gets hotter and hotter until the computer is forced to shut down. With normal use (and even when there's ...
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Cpu temps critical, computer huttin down on it's own reformatted and the issue got worse [closed]

I have 512 gb crucial ssd, a 640 gb western digital hd, and a seagate 750gb hd. Ok so i have windows 7 64xbit (typing on a tablet bar with me i might have typing errors).Anyway my problem has occurred ...
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2answers
175 views

Game drops to 0 FPS and CPU Usage drops to 0%

So for about 2 weeks now I've experienced a problem while gaming. My frame rate would drop to 0 and my computer's CPU Usage would drop to 0% at the same time. This would stay this low for up to 30 ...
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1answer
29 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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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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3answers
3k views

Intel turbo boost - in reality

I have an Intel i7-3630QM processor in my laptop. Its speed is supposed to be from 2.4 to 3.4 GHz in turbo boost mode. In reality, will it ever run all cores on full speed (3.4GHz mentioned above) ...
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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
13 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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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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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 ...
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5answers
23k views

What regulates Intel SpeedStep CPU throttling? Can I get some control of this on Windows7?

I’m trying to get a big virtual disk file compressed (using WinRar) before I go home today, but my CPU frequency keeps merrily going up and down between the nominal 2.8 GHz and a measly 800 MHz! The ...
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1answer
2k views

CPU fan turns on for a second and stops, PC does not start at all

I have checked my PSU and it works fine. When I turn on the MOBO, the CPU fan, case fans and the psu fan itself turn on for half a second and then turn off. The PC remains off. The Bios light turns ...
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2answers
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Are there any downsides to enabling Hardware Virtualization in the BIOS?

I was wondering if there are any downsides (even theoretical) to enabling Hardware Virtualization in the BIOS. I noticed that it is disabled by default, and perhaps it is that way for a reason ...
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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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3answers
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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 ...