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

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Better bang for buck: 1156 vs 1366 [closed]

I want to make a new gaming rig. I do plan on spending quite a bit, but not waste money. I believe ars technica would categorize it as hot rod.. I want to get a $300 (+/- $100) Intel Core i7. Whats ...
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418 views

Upgrade Cpu on intel 82865g motherboard

i would like to try to improve my pc performanc but i'm not sure about cpu compatibility. My Motherboard is (i suppose ) aOpen ez 65 with intel i82865g chipset. My cpu is a P4 2.8 ghz without ...
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Core i3 and core i5 processors. What is the difference? What do I choose?

I'm in a dilemma to choose between Intel Core i3 and Core i5 CPUs. I'll be using Adobe CS5 applications along with some other multimedia tools and will be playing games with high end graphics. Will I ...
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1answer
105 views

overclocking my first processor

So I've never overclocked before, but it sounds like you just change some settings in the bios @ startup and you're good to go. So I got some freeware called CPU-Z and it tells you lots of stats ...
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108 views

Computer crashes

I just installed a new motherboard, cpu, ram, and a psu. I am having problems because my computer will randomly crash(restart) and I can't seem to associate it with any specific thing that I'm doing ...
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67 views

Hardware: Matching a CPU

So I've got an old machine I want to turn into a basic server (FTP, security camera, maybe a printer). It has this processor. I want to put in the A1400AMS3C (Google it, serverfault won't let me post ...
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3k views

Will an Intel i5 processor make use of DDR3 1600 ram?

I'm trying to play catch up with today's technology to build a new desktop system (to run Star Craft 2). I'm looking at Intel's Nehalem (microarchitecture) and the highest memory interface it'll use ...
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178 views

is having all ram slot filled remove some overclocking room?

I have 4x 2gig, filling out all my ram slot. Does it automatically mean that I wont be able to overclock as much as having only 2 filled? Using Asus p7p55d-e pro motherboard Intel i5 760 and 2x ...
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839 views

Dell PowerEdge 850 CPU upgrade to Pentium 4 E5400 not working

I bought a new dual-core Pentium 4 CPU (E5400) for my PowerEdge 850 (800Mhz FSB), and it's not even going through the POST. What am I missing? I updated the BIOS to the latest version (A04), and no ...
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How to know the architecture of processor I'm using?

I wanted to know architecture of my processor. firsthing I did is to type env in cmd and I found these. PROCESSOR_ARCHITECTURE=x86 PROCESSOR_IDENTIFIER=x86 Family 6 Model 23 Stepping 10, ...
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852 views

Normal rate of CPU temperature fluctuation

Currently my CPU temperature as measured by lm-sensors increases by 1-2 C upto 4-5 C when I start a new process - like a video, music, etc. The change takes place in less than a second. Is this normal ...
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Is it possible to change, manually, my MacBook processor to an Intel Core i3?

Is it possible to change, manually, my MacBook processor to an Intel Core i3? Or should I buy a 15-inch MacBook Pro? I wonder: is it possible to change my processor which is an Intel Core 2 Duo ...
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Difference Between Cores and Processors

I am confused by the difference between "Cores" and "Processors". A lot of the computers are 2-cores, 4-cores. Does this mean that they have one processor, but with 2 or 4 cores on that single ...
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3k views

Multiple CPU cores in Virtual Box

When I was using Virtual Box in Windows 7, I could choose how many CPU cores to assign to the guest OS. Now I'm using Linux, and when I installed Virtual Box, I couldn't find that option. System ...
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452 views

Which model six-core Xeon processor does the new highest-end Mac Pro have?

Apple announced a new Mac Pro with up to 12 cores, and I'm having trouble finding the exact specifications of the six-core Xeon processor inside it. I'm in charge of sourcing a few of these computers ...
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Kernel and User mode distinguishing

Who is responsible for determining that the process is in the Kernel mode or User mode? I know kernel knows which process is belong to what space, but how the CPU determines that? I mean should CPU be ...
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52k views

How much memory can a 64bit machine address at a time?

If the memory is byte addressable, shouldn't it be 2^64 / (2^10 * 2^10 * 2^10) = 2^34 GB ? A general Google search says 8GB or 16GB max. How is that true? Also, how does it depend on the Operating ...
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337 views

Putting CPU back in

While dusting my PC, I got a bit stupid and tried to pull out the heatsink (with the latches removed) to dust it properly. However, I ended up with the CPU being attached to the heatsink -- apparently ...
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268 views

Setting CPU cores off-limits to all threads not specified (preferably in Windows 7)

I have a really specific machine configuration in the works that would really be helped out if there were any way to do this...basically what I'm looking for is the opposite of setting CPU Affinity ...
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1answer
178 views

Protected mode and Real mode

What happens when we switch from protected mode to real mode? From what i'v learned by googling, i know Real mode is available in CPUs to allow some of the old applications to run properly without the ...
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1answer
3k views

Setting permanent process CPU core affinities in Windows

I am planning on getting a new CPU and am looking at a quad core i5. The reason for the quad-core is that I generally multi-task a lot for example running Visual Studio, Eclipse Aptana, Photoshop, ...
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449 views

Upgrade processor in Dell Inspiron E1705

I'm looking to upgrade the processor in my older Dell Inspiron E1705. The laptop is currently running an Intel T2400 @ 1.83GHZ. First, is this something that is even possible to do? Second, what ...
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711 views

What's inside the CPU?

Where can I see some pictures of how the CPU looks from inside?
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1answer
7k views

Test for bad Motherboard VS bad CPU

I'm working on an HP Pavilion a6300f PC ( http://h10025.www1.hp.com/ewfrf/wc/product?lc=en&dlc=en&cc=us&product=3644689 ) that wont boot up. (no display, no beeps, no lights other than ...
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3k views

Can RAM be specific to chipset like intel or amd only? F3-10600CL9D-4GBNT

Basically i want to know if this ram is compatible with GA-890FXA-UD% motherboard. using a AMD 1055t CPU
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What are things that I need to keep in mind when upgrading the computer hardware parts? [closed]

I want to upgrade my computer hardware to advanced hardware parts like Mother board, RAM, Processor, hard disk, CDROM and etc.. For example I have the following in my mind: I have Pentium III ...
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110 views

Replacing Motherboard and Processor

I'm planning to replace the motherboard and processor on my Linux box. I know that the two need to be compatible with each other and the RAM, but are there compatibility issues to worry about with ...
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266 views

Serious CPU overheat issue

So I have had a look at this post and am still somewhat in the mire. My computer is: CM Stack Case, Tagan 900W PSU, Gigabyte K8NSNXP, 2 Gig Corsair something or other RAM, AMD 64 X2 4400+, 3 HDD (2x ...
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623 views

100% CPU Runaway Processes (NCurses?)

This is a problem I've had for years, but just haven't posted anywhere about it until now. I'm running GRML, a Debian squeeze based Linux distro, and occasionally certain processes will runaway and ...
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1answer
5k views

How to undervolt a Core i3 laptop?

Using k10stat, I significantly undervolted all 3 p-states of my Athlon II P320 laptop, yielding a 10-20% longer battery run time. Are there similar tools for Intel's Clarkdale/Arrandale processors? ...
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839 views

Single core to Dual core and Interrupts

Does increasing the number of cores result in the increase in the number of interrupts that can be handled by that processor ?
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RAM size > L2 Cache size > L1 Cache size > Internal Registers of a CPU

I understand that the access speed of internal registers is very high compared to that of L1 Cache and L1 Cache can be accessed faster than that of L2 cache which in turn can be accessed faster than ...
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694 views

Pulled out CPU with heatsink

I am using a AMD Phenom II X4 965. I was replacing the stock heatsink with an aftermark Arctic Cooling Freezer Pro 7 Rev. 2. When I unlatched the stock heatsink and pulled it from the motherboard, the ...
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What is a quantum processor?

Someone brought up a "quantum processor" or "quantum computing" the other day. What is it? How does it differ from the processors we're using?
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How can I make the CPU to switch from “minimum processor state” to “maximum processor state” much much faster?

In Windows 7, in "Power options", the "minimum processor state" is set to 5%. Because of this, some programs are really slow. For example when I compile source code, the compilation time (Delphi 7) is ...
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Are ia64 processors ever used for Windows PCs? If so, how many people are using them?

How many people on average are using ia64 powered Windows desktop PCs? I know this really can't be accurate, but just on average, like 1? 10? 10000? Thanks -edit: wasn't thinking correctly: I didn't ...
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Upgrading from single core to dual core - Will throughput get doubled?

If i replace a single-core processor with a dual-core processor, Will it increase the throughput by two times ? If No, why throughput does not get doubled ?
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481 views

Role of a bus bridge [closed]

Simple question: What is the role of a bus bridge?
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Why multi core processors?

Why are chips containing more and more cores? Why not manufacture a larger single-core processor? Is it easier to manufacture? Is it to allow programs to multithread using seperate cores?
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Why does System Properties display two different frequencies?

My System Properties window has the below text (also see screenshot). What does the "1.20 GHz " refer to? Hewlett-PackardHP Compaq dc7700p ConvertibleIntel(R) Core(TM)2 Duo CPU E4400 @ 2.00GHz ...
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5answers
9k views

How is the processing capacity of modern devices compared with that used decades ago?

I saw on t.v. a description of the computer used in the first travel to the moon. I wonder if modern devices such as an smarthphone have already that same capacity? Does anyone have a link where ...
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877 views

bad ram or bad motherboard

I have a computer which crashes after about 5-45 seconds of operation. It can run memtest86+, and it doesn't display any errors, but it doesn't prevent it from crashing within the time frame listed ...
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2k views

Problem with xvideoservice thief

Xvideo service thief is an application that allows you to download and convert youtube videos into .avi format. The problem is when it tries to convert the .flv into a .avi. The audio in the video is ...
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2answers
2k views

cpu-z alternative for ubuntu

I'm using ubuntu 10.04. Is there any application that has features like that of cpu-z?
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How to set processor affinity on OS X?

How do you set processor affinity in Snow Leopard on a MacBook Pro?I know in Windows you could just switch it in Task Manager.
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2k views

What browser or any tool can reduce flash CPU usage?

OS: windows XP SP3 While listening to Pandora in Chrome, the CPU usage is almost to 100% for a single core in CPU. Is there any way to reduce CPU usage? Either by using another browser, any plugins ...
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what's POST code 18 / can I run an ASRock P55 Pro + Core i3 530?

When I switch my newly built PC on, the fans start up, but I get nothing on the monitor, and the POST display on the motherboard runs quickly through various codes and then stops at code 18, which ...
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Looking for gadget (or anything else) to find true CPU speed in Win 7

I am looking for a gadget preferably, or any program, to tell me my true CPU speed in Win 7. I have a Xeon 3426. I am running the Intel Turbo Boost monitor gadget, but it's only going down to 1.87 ...
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Does “core” mean CPU or memory or both?

I was wondering what "core" means? CPU or memory or both?
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Least expensive AND smallest CPU setup

I'm looking to build a very simple NTP clock, nothing else. I'd like to get a small screen and mount a small chassis to the back of it. It's sole purpose will be to display a clock and poll the data ...