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

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Should I believe my CPU or laptop manufacturer for maximum memory supported?

I am going to buy a laptop which has a i7-6700HQ CPU. As the memory controller is inside the CPU, I thought it would tell the maximum memory supported. According to Intel: Max Memory Size (...
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Weird performance differences on similar workstation cpus

I'm running some scientific simulation code on a cluster which has nodes containing Intel Xeon E5-2630 v3 cpus. The cluster uses CentOS 7.2.1511, the gcc version I'm using is 5.1.0, and the assembler ...
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7 views

Windows installer stuck at Windows Logo

I currently have Windows 10 32 bit installed on my system and I now want to upgrade to Windows 10 64 bit. I have downloaded the ISO and burnt it to my USB. I boot from it and all I get is the blue ...
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3answers
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Why are newer generations of processors faster at the same clock speed?

Why, for example, would a 2.66 GHz dual-core Core i5 be faster than a 2.66 GHz Core 2 Duo, which is also dual-core? Is this because of newer instructions that can process information in fewer clock ...
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VT-X is supported by cpu but not selectable

my computer's bios setting says that vt-x is supported by cpu. but I could not find anywhere to enable it. what's going on?
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2answers
30 views

What is the data route inside computer while downloading/processing a file

I was wondering that whether all the data in Computer has to go through the Processor or are there any Bypass Routes(like DMA) through which data goes. Consider following cases : While downloading ...
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13 views

What processor should I buy? [on hold]

I'm currently running on a core i5-4460 CPU @ 3.20GHz on a 1150 LGA socket (Haswell). I need to upgrade to an i7 but I'm unsure on what one to go for, it needs to be faster (using the machine for ...
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610 views

Is it possible to have a dead core on a quad core processor?

A few weeks ago my iMac 27" Mid 2011 started restarting by itself. After a further investigation I found that it wont start with 4 CPU cores, but max 3. Is it possible that my 4th core is dead? Thank ...
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6 views

Acer 4736z Laptop fails to load any OS, only windows safe mode working

I have been trying to figure out the actual cause of the sudden shutdown of my laptop at the time of OS load or at startup. This is happening from past several days intermittently however, was able to ...
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13 views

How high can you get the clock speeds of a i5-3320m?

I am trying to get the best out of my laptop's CPU. How high can I get my clock speeds to?
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2answers
5k views

Normal motherboard and CPU temperature

What is the normal temperature of motherboard and CPU? Details: Model: Toshiba SATELLITE T130 Mainboard: Toshiba SATELLITE T130 Total Memory: 3.84 GB DDR3 SO-DIMM Processor: Genuine Intel(R) CPU ...
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18 views

Fetch decode and execute cpu

After fetch, decode must decode the instructionand send it to the component that is interested, but this means that this instruction could be send also to video card? And another questions, who load ...
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56 views

Using WPA to diagnose high CPU usage of “system and compressed memory” in Windows 10

Because the computer (ACER Aspire V5-122P) was running slow and was quite messy, I reinstalled Windows 10 and installed all the updates recommended. I also installed Avast and MalwareBytes. It is ...
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21 views

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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0answers
13 views

Engineering Sample CPU Frequency (GHz) is same like official CPU Frequency (GHz)? [on hold]

any one can confirm that Engineering Sample CPU frequency is same as the production CPU ? Let suppose if Intel E7 8890 V3 official CPU Frequency is 2.5G than Engineering Sample ( E7 8890 V3 ES) CPU ...
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2answers
3k views

Virtualbox, how to force a specific CPU to the guest

I have a XP guest in VirtualBox, windows 8 host. The guest shows the processor transparently same as the host (i5 2500k). However most of the installers don't recognize this processors and fail to ...
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1answer
69 views

Edit VM setting so he configurate like a 84-bit processor [closed]

How can I the virtual machine settings change from an ESXi5 64-bit machine so that I can configurate it like a 84-bit operation? I'll nothing change to my guest operation system! This virtual ...
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1answer
57 views

How to explain the strange power consumption difference among OSes and hardwares and how to lower it?

I use a wattmeter to measure the power-consumptions of my computers. The following is the result: my laptop + Ubuntu 14.04: 14.5 watt my laptop + ArchLinux: 30 ...
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24 views

Is it worth it for the average user to upgrade their computer every 18 months? [on hold]

I hear that every 18 months computers get twice as powerful, but looking at my computer from 2010 and a new computer from 2016, (that's 4 18-month periods, meaning 8 times more powerful) I really don'...
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2answers
34 views

Why does process explorer show thousands of threads?

In the screenshot below, you can see that the OS is reporting 2925 threads. In my own programs, I set the number of threads per core to around 1:1 and that results in the fastest overall processing....
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2answers
731 views

Can ESXi read CPU temperatures (and report them to Observium)? (Poweredge 1950 Gen 3)

Currently running ESXi 5.5, Poweredge 1950 Gen 3 with dual Xeon E5410's at 2.33GHz. As far as I can tell, ESXi does not report CPU temperature anywhere. Here is the health page on ESXi vSphere: So ...
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1answer
47 views

Old Toshiba Laptop Windows 7 AMD Cpu Upgrade

I want to be able to upgrade my Toshiba laptop from a C-50 dual core CPU to something better around say 2.50Ghz or at least 2Ghz. I don't know the exact socket of the CPU but I think that it is a ...
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30 views

Git Server Hardware Requirements

What is needed for running a non lagging, stable Git Server? I'm thinking of running a Git Server on a Raspberry Pi 3 B and backing up anything to a flash drive.
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1answer
125 views

Why do I get better performance on VMWare when I enable all cpus along with adding cpulimit?

I'm curious but at the same time also would like to share my findings of the increased gaming performance in VMWare by enabling all virtual cpus and limiting the VMWare process with cpulimit (...
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What CPU manufacturers really mean by “1-4Ghz Processor”

Recently I found out that what's known as the crystal oscillator is responsible for setting clock cycles. To my understanding this oscillator is found on the motherboard, not the CPU. My first ...
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Why does VirtualBox show more CPUs than available?

I have an Intel Core i7 3930K with 6 CPU cores. Now, I understand that every of that cores can handle 2 separate threads. That makes 12 virtual cores - which I can see using my system monitor (see ...
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VirtualBox, why can't I use more CPU?

I have a six core, 12 thread processor. two virtual threads per one core. I have the option to allocate one to 12 CPUs. There are warnings about allocating more than six CPUs not doing anything. ...
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25 views

Why are most processors dual core and quad core? [closed]

Are there any technical disadvantages to using a tri-core processor? The only device I can think of (of the top of my head), that uses a tri-core core processor is the Nintendo Wii u.
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33 views

GPU overheating troubleshooting

I've been having overheating problems for a while now, and I'm not sure which part is at fault. My specs: Windows 10 x64. Motherboard: Gigabyte Z87-HD3. CPU: Intel i5 4670 K. GPU: AMD MSI R9 290 4G ...
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1answer
17 views

Processor Generation Compatibility

AMD A6-3620 APU with Randeon(tm) HD Graphics 2.20 GHz. What generation is it? I've tried looking it up through device manager but it didn't show me.
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Processor Generation Compatibility

Graphics 2.20 GHz. What generation is it? and will it work with an Elgato HD 60 s capture card? I've tried looking it up through device manager but it didn't show me. I want to know if I can actually ...
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4k views

Upcoming Broadwell-E single-threaded performance in i7-6950X vs 6900K vs 6850K

According to various leaks ( http://wccftech.com/intel-broadwell-e-core-i7-6950x-price/ ) and ( http://wccftech.com/intel-broadwell-e-hedt-computex-2016/ ) the CPU frequencies of the upcoming ...
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48 views

Can you run Linux on a Skylake processor?

I'm thinking of buying some new computers for my home (e.g. desktop workstations), but I read an article the other day suggesting that some processors from Intel were intentionally being manufactured ...
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2answers
1k views

Meter for Intel Turbo frequency

Hi their I have a laptop with Core i7 2630QM (Base freq 2GHz TurboBoost2 upto 2.9 GHz). I was always curious about to view the dynamic overclocking that occurs in i-series when it is subjected to ...
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Can I put a desktop Core-i3 CPU in a laptop?

This is a mirror-image of this question: Can I put a laptop Core i7 CPU in a desktop? I would like to buy a laptop that I will use mostly at home and at the office. I need a laptop rather than a ...
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What does the BASE clock speed of an Intel CPU really signify, now that we have Turbo Boost and SpeedStep

Intel now sell their CPUs with an advertised Core Clock speed, and a Turbo Boost (up to) speed. As well as this, thanks to SpeedStep (dynamic frequency scaling), a CPU will often underclock to ...
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31 views

Is it safe to rapidly toggle fan speeds?

I'm trying to run a large computation on my Dell Inspiron 620 desktop, making the CPU generate a lot of heat. Unfortunately, the resulting fan noise can be quite frightening, especially at night! It ...
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What is “C1E support” on my AMD CPU?

I'm building a new computer and have found the following options in the BIOS on the "CPU Feature" screen: AMD Cool'n'Quiet C1E Support SVM Support I understand what "Cool'n'Quiet", and "SVM ...
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3k views

How to find out register sizes of Intel Processors

I'm wondering about the register sizes of the three following intel processers. i7-2920XM i5-2540M G6960 I've been to Intel's specs and also have gone through the datasheet. But I couldn't seem ...
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173 views

Laptop CPU temperatures: 65°C in idle, 100+°C in heavy load

The laptop is a 4 years old Asus N56VZ, ambient temperature is around 25°C. I've already unmounted the laptop, cleared the (not much) dust and changed the original thermal paste with Arctic MX-4, ...
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4answers
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Can I increase the L2 cache memory of my CPU?

I noticed that my laptop seems to have 4x the amount of "L2 cache memory" than my desktop, is that normal? laptop: Intel Core Duo CPU T2450 @ 2.00GHz, L2 cache memory 2 MB, system bus 533 MHz ...
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1answer
125 views

Can a system have processors both with and without Hyper Threading?

Is is ever possible that a given computer has several processors among which only some have Hyper Threading technology and others do not? My problem is that I use hardcore code like here for ...
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1answer
399 views

What kind of CPU is this?

Is there a way to determine some information from looking at a CPU, I have 1 I am trying to sell from a PC I was building a few years ago for a car pc, I no longer remember what the speed or anything ...
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2answers
230 views

Dual E5xxx or single i7 performance difference

I am building a computer for a friend who does modeling and simulations. I have a system put together that has dual E5504 processors for 8 cores at 2ghz. I was wondering how much slower a single ...
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29 views

What do more cores specifically do? [duplicate]

I am running Windows 8 on a custom built pc, where the processor is currently the Intel Pentium G3258 (2 CPUs) ~3.2GHz and I have overclocked it to run at 3.7GHz, but the performance I need is ...
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22k 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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6th gen intel processor compatible PSUs

I'm planing to build a skylake desktop and I was wondering if I have to worry about getting a 6th gen intel processor compatible PSUs. I noticed some PSU advertise that they're "Engineered to support ...
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Upgrade from Pentium D 920 to a Intel® Core™2 Quad Corer Q9450?

I want to Upgrade a Pentium D 920 (Presler) to a Core Duo 2 Quad. I have been checking around on websites and find confusing/conflicting info. Some say yes, others say the BIOS will not support it. ...
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114 views

is it possibe to change the processor

Is it possible to change the i3 processor into i5 ? My laptop is HP DV6
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21 views

Is there a way to check if the defective unit is, Processor/Motherboard?

My computer doesn't turn on when pressing the power button so I checked each component to distinguish where the problem is. I removed all the components and test one by one, starting from the power ...