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

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Change CPU reported name on Virtualbox or Vmware Guest OS

I want to find a way to change the name of the cpu on the Guest OS of a virtual machine (either virtualbox or vmware). For example, while my real pc has an intel i5-5200u I want the virtual machine ...
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1answer
21 views

All of a suden CPU over heat error on boot

I recently moved houses and took my desktop computer with me. Before moving, I dusted it out using compressed air and took the heat sink off the CPU and dusted it out too. When I reassembled the ...
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3answers
4k views

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 ...
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0answers
10 views

operations process in a computer

Is it true that all high-level operations in a computer (say, copying, pasting, web surfing, running apps etc) are all finally converted to micro-operations (say, arithmetic, logical and shift) and ...
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1answer
1k views

crackling/beeping/distorted audio on my Dell Inspiron after one day running

I have a Dell Inspiron laptop with Windows 7 Professional 64-bit. I got it a little less than 2 years ago. For the last year or so I've noticed that when it's on for a little while (a day or two, ...
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2answers
3k views

Loud Noisy (CPU Watercooler?) Fans

I have an issue with my computer lately, I built my computer 3 months ago and I assume my CPU watercooler fan is getting louder. I have a Corsair H100i Watercooler, Intel Core i5-3570k CPU, ASRock Z77 ...
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1answer
18 views

LGA775 motherboard cpu support

My motherboard says it doesn't support Pentium D 925, 935, 945. It supports 920, 930, 940, 950 but I inserted 925 and it worked. Could it cause any problems or incompatibility in some stuff? Why it ...
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1answer
116 views

Can 'AMD-only' RAM really restricted to AMD chipsets, and if so, why?

I was browsing for a RAM upgrade earlier for my system, and came across 'AMD-only' RAM (aka, RAM that only works on AMD chipsets). This RAM can easily be found on sites such as eBay, and seems to be ...
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5 views

I am running Eclipse Mars 4.5 , My CPU usage goes beyond 100% and suddenly all system stops

My system Info:: Model: Dell vostro 1015 RAM: 4 GB (2 GB extended) Processor: CORE 2 Duo Software's installed Eclipse Mars(STS and M2E plugins installed) MySql Crome Quick Heal Antivirus I have ...
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12 views

Algorithms implemented in Java to measure multi-core CPU performance [on hold]

I've been using Linpack and SciMark2.0 algorithms to evaluate CPU performance. I found those here: http://www.netlib.org/benchmark/linpackjava/ and here: http://math.nist.gov/scimark2/ They work ...
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14 views

hardware virtualization on Intel i7-4790K/Asus maximus vii ranger/Win10 Pro [duplicate]

After a power failure my system seems to have lost its virtualization capabilities. CPU is an i7-4790K (http://ark.intel.com/products/80807/Intel-Core-i7-4790K-Processor-8M-Cache-up-to-4_40-GHz) ...
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1answer
33 views

Is the computer BIOS specific to an architecture

Is the BIOS manufactured with the processor in mind? Suppose I have a 32Bit Intel processor and I wish to to upgrade to a 64 Bit Intel later. (Assume this is possible & not just a switch ...
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2answers
141 views

Disadvantages of Integrated Graphics Processor

I recently upgraded pretty much everything on two of my systems but my NVIDIA GeForce 210 1GB Graphic Cards. One of my system has Intel Core i3 4130 which has Intel HD Graphics 4400 and the second ...
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0answers
13 views

Laptop locking up with weird image displayed

Here's a video with 4 examples (filmed at different times) of how my laptop has been locking up. It's 2-3 years old with an Intel i5-3210 processor + 16GB RAM. It started doing this once every few ...
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0answers
16 views

How would I go about overclocking my Intel Pentium N3700?

I've searched all over the 'net for this one, and I couldn't really find anything that would allow me to overclock my CPU. My CPU model is an Intel Pentium N3700 quad-core operating at 1.6 GHz base ...
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1answer
36 views

Does the CPU or motherboard throttle?

Can a CPU throttle itself, or is it the motherboard that does it? By throttle, I mean when the CPU underclocks and undervolts itself due to high temperatures.
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6 views

Linux cpu hotplug not working as expected

I'm testing linux cpu hotpluging on normal desktop 8-core AMD machine. Problem seems that after onlining a CPU again taskset and kernel refuses to move and/or schedule any tasks on the core. E.g. ...
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3answers
74 views

Two CPUs as a single system

I don't know whether this is a foolish question or not. Is there a way to make two separate dual-core systems to run as a single quad-core system under a single operating system?
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9 views

Strange Sound during Work [closed]

hello. I have a problem. I have installed win7 x64 and during work I hear that computer turns off and some minutes later it turns on. But Its only a sound. Shall I be afraid and how to fix that i5 ...
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3answers
17k views

Laptops overheats and shuts off when I play games

I've recently been getting in to playing PC games on my laptop, but unfortunately nearly every time I play, my computer overheats and shuts off after 5-10 minutes. Although I have not checked the ...
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0answers
20 views

why is a laptop with dual core processor with 2.4GHz more practical than a single core 4.8GHz processor?

Hi I am looking to get a laptop but I have been reading that dual core processor with 2.4GHz is better than a single core 4.8GHz processor. Could someone explain exactly as to why that is?
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1answer
29 views

CPU (with integrated GPU) UPGRADE with Linux Mint (from old Pentium G620 to i7-3770)

I have a system based on Linux Mint working very well, I am really happy of it but I am a newbie with Linux, only 2 years I use it and I cannot solve every problem simply like I was able with my old ...
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1answer
2k views

dell xps 15 thermal paste on intel graphics instead of heat pad?

I had recently opened up my Dell XPS 15 L502X to replace the thermal paste on my CPU and Nvidia GPU. I noticed that the Intel graphics Chip also had a thermal pad on it. To the best of my knowledge ...
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23 views

Windows 7 running slowly despite having lots CPU and memory free

This is my computer spec: Intel i7 2500k @ 3.4ghz Win7 64bit 16gb of ram Radeon HD 6800 My computer is starting to run progressively slower; for example, when switching between programs i.e. Excel ...
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1answer
26 views

Sandy bridge sockets

what is the difference between these two socket types: bga 1023 and rpga 988b asking because now I have i3-2310m which is bga 1023 type CPU before that I had Intel b970 CPU which had rpga 988b socket ...
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Should I disable hyperthreading in an Intel CPU?

I have a laptop with Intel i5 M430 2.27GHz. The CPU has TWO REAL cores but it also has some kind of virtualization so Windows sees it as 4-core. In a REAL dual core CPU, a single threaded program ...
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1answer
62 views

Testing laptop hardware [closed]

I purchased an untested Dell Latitude off ebay and only have 14 days to return if the hardware goes faulty. What are the best tools I can use to test the hardware out. I'm going to keep it running ...
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1answer
616 views

Processor working on low frequencies only

I am using a Dell XPS 17 laptop, which has Intel Core i7 2670QM processor. The problem is, that i cant get it work on higher frequency than 800 (multiplier x8). I doesn't matter how i load CPU it ...
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0answers
13 views

Reading CPU model specific registers on linux

I am running Ubuntu 15.10 but testes it also on Debian. I have Intel i5-5675C processor. I am using msr-tools-1.3 to do it. I am able to read register 0x00001a2 with the following command: rdmsr ...
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1answer
296 views

Which instruction set do I have? [duplicate]

I've recently had some issues with my Dell Vostro laptop and Dell sent me out some OS discs to reinstall Windows 7 Ultimate SP1. I expected to get 64-bit discs in the mail, but instead received ...
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236 views

Why do x86 CPUs only use 2 out of 4 rings?

So either Linux or Windows based x86 systems only use ring 0 for kernel mode and ring 3 for user mode. Why do processors even distinguish four different rings if they all end up using just two of them ...
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1answer
22 views

PC Parts compatible? [closed]

I want to upgrade my current pc and was wondering if the following parts are compatible with one another - Motherboard: ASUS M5A97 LE R2.0, socket AM3+ CPU: AMD FX-8350, 4,0 GHz (4,2 GHz Turbo ...
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1answer
37 views

Turn off HyperThreading without BIOS

I need to turn off HyperThreading from my i5-3210 notebook since it hinders my IDE performance. My i3 took about 10+ seconds from compile to run in my Android VM, same code runs in my AMD in about 10 ...
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1answer
1k views

How to tell if my Intel 64-bit CPU supports AMD64/x64 long mode?

I have Windows XP 64-bit, and am having a some weird issues with a 64-bit build of VirtualDub. In the release notes on SourceForge, it it says that the 64-bit version was compiled specifically for ...
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2answers
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How does Intel Turbo Boost Technology improve performance on the new Core i5, i7 series of chips?

I'm curious about the new innovations in Intel's Core i5 and i7 series of chips, in particular the Turbo Boost Technology. (Doesn't turbo boost remind you of Knight Rider?) What are the details on ...
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1answer
723 views

What's the highest performance Socket 478 processor at 133MHz FSB?

Looking to upgrade an older box that has an Asus P4S8X-MX mobo.
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3answers
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How many cores does an Xeon e5530 have?

HI, If I execute this on a Dell T410, which has two Xeon E5530 Quad Core processors, I get the output shown below: mov eax, 4 mov ebx, 0 mov ecx, 0 mov edx, 0 CPUID ; at this point eax=0x1c004121, ...
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1answer
785 views

Determine Socket from /proc/cpuinfo

Is there a simple way to determine the CPU socket from the output of /proc/cpuinfo. Determining the type of processor is simple enough, but the processor I have (Celeron) has two different possible ...
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4answers
454 views

Should RAM in a core 2 duo system be upgraded in pairs?

I know when computers have two physical processors, you are supposed to upgrade the RAM in pairs. Is this the case with 2 cored processors as well such as the intel core 2 duo?
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1answer
649 views

Anyone know why the Intel q9400 cpu is embedded?

I was just looking through the Intel site and I came across this - http://ark.intel.com/ProductCollection.aspx?familyID=28398 Anyone know why the 9400 has a tick in the embedded column? I have tried ...
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4answers
3k views

Is the Intel Core i5 mobile processor better than the Intel Core i7 mobile processor?

I'm shopping for a new laptop from Dell (going to install Ubuntu on it) and I'm currently trying to sort out which processor I want. Based purely on the clock speed, it would seem that the core i5 is ...
4
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6answers
9k views

i7 920 CPU doesn't come with thermal paste for the cooler?

I installed my new i7 920 CPU and cooler that came with it. It didn't come with any thermal paste, so I guess it is not required? I really hate these snap-in 'screws', they pop out easy!
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2answers
30 views

Desktop suddenly turned off and won't turn on again

My desktop suddenly shut down and it does not turn on again. I have tested the PSU with the paperclip trick and the fan started to spin. What do I do from here to know what is broken? There is no ...
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0answers
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Does such a cache (unreduce) actually exist?

I'm reading about cache replacement algorithms and one states (source, page 37) Def. A reduced schedule is a schedule that only inserts an item into the cache in a step in which that item is ...
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28 views

Crackling Audio issues on LACK of CPU load

I have been trying to track down an intermittent crackling audio issue for YEARS now to no avail. I've checked DPC, memory pagefiles, etc... back when I was running Win7 -- which also had the issue ...
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2answers
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What is the primary reason more RAM makes a computer faster?

Whilst studying for an exam I read that more RAM decreases the number of page faults. Given that handling a page fault can cost many millions of CPU cycles is this the primary reason more RAM will ...
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1answer
12 views

Dxdiag result about CPU

My customer sent me dxdiag result in txt file. For the processor section it says Intel(R) Xeon(R) CPU E5-2650 v3 @ 2.30GHz (20 CPUs) The "20 CPUs" in parenthesis confused me. This CPU has 10 cores. ...
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0answers
16 views

How to build a stronger server? Single strong CPU vs many weaker CPUs cluster [closed]

I want to build a stronger server/workstation for statistical computation on budget. I'm wondering if I should go with single strong CPU such as Xeon or many cheaper CPUs such as Celeron to build a ...
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3answers
8k views

What does “address data multiplexing” and “bus buffering” mean?

In my notes, I keep coming across two terms which are confusing me while looking through my notes on the 8085 processor. The first is address data multiplexing. What is meant by this exactly? I ...
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338 views

PCI-Express Processor/Co-processor cards

I am hoping someone might be able to help: In the days when I started with computing (C64 and later Amigas) expansion slot cards with co-processing ability were relatively common. I am looking for ...