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

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Apple A4 processor. What is it? [closed]

What do you think about internals of Apple A4 processor for iPad? Is it ARM7 or ARM9 core from P.A.Semi or ARM Cortex-A9 MPCore based SoC?
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1answer
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Whats the difference between i386,i686 etc processors?

Which one is latest or normally used in computers today ? What is the type of pentium 4 and Core 2 duo?
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6answers
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Is it OK to use toothpaste instead of thermal paste when fitting a CPU?

I was told many years ago to do this by someone who at the time knew more than I did. The CPU was a celeron in the Pentium 2 era. It ran cooler with the toothpaste between the chip and the heatsink ...
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4answers
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The difference between GPU and CPU

I know what a CPU is(I think). It's the thing who's speed is measured in GigaHertz(these days). However, you hear a lot about a GPU, and letting the GPU take over, not letting the CPU but the GPU do ...
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4answers
18k views

Replacing fan on stock AMD AM3 heatsink with a quieter one? [closed]

I've recently built a new PC which includes the AM3 Phenom II x4 955 Black Edition processor. I've been using the stock heatsink and fan because I can't get any aftermarket coolers to get my CPU as ...
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1k views

Can I disconnect the fan on side door of a computer case

I have this computer case. It has a large fan on the side which makes too much noise. Is this fan necessary, or can I disconnect it?
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2answers
580 views

How to apply thermal grease using a paper template

I purchased thermal grease that came with a paper template. The tutorial told me to apply the grease to the template and then attach it to the fan base (heatsink), and then remove the paper and join ...
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6answers
2k views

Why would a computer run very hot?

I have a non-standard machine and it seems to run very hot; the CPU fan whirls so loudly I can hear it in the other room (the case is open, mostly because the side got lost at some point). I ...
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1answer
4k views

Old AMD on Windows 7 64-bit; is Cool'n'Quiet possible?

Can I enable Cool'n'Quiet on my old AMD processor on Windows 7 64-bit? If so, do I need a separate driver (like Windows XP) or I only have to modify some options? The processor is an AMD Athlon 64 ...
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1answer
162 views

System will only boot into a Live CD with core disabled in BIOS and ACPI off

I have a system that was running a Q6600 and Windows 7 RC. It crashed last night into a BSOD with a MACHINE_CHECK_EXCEPTION. Now it does that every time it boots into Windows. I tried using my ...
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1answer
436 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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CPU makes an electric leak like sound

For a while my computer have been making a electric leak like sound whenever the CPU usage gets high. However, lately it started to make it more often. For example with anti-virus searches and malware ...
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3answers
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Upgrading CPU for Dell XPS 410

Is it OK to install an Intel® - Core™2 Duo E7500 Processor E7500 into a Dell XPS 410? It has a socket LGA 775 and 1066 MHz bus. Edit (from comment): I currently have an Intel Core 2 4300 installed in ...
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3answers
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Why does my Intel i7-920 display 8 cores instead of 4 cores?

When I go to the task manager I see 8 processors but I know that I have 4. Why?
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4answers
308 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
199 views

Is there graceful degradation in symmetric multi-processing (SMP) systems?

Since graceful degradation is a fault-tolerant feature, is it true that in a multi-processor systems with symmetric multi-processing, there will be no graceful degradation? Update: ...
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1answer
736 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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2answers
2k views

Why does explorer.exe use so much CPU?

The explorer.exe process on my Vista x64 has started using a lot of CPU recently. Restarting the process typically solves the problem. Is there a simple way to inspect the process to see where ...
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3answers
362 views

If my old desktop PC has a pentium D CPU in it now, can I be pretty certain a core 2 duo E7500 will work in it?

If my old desktop PC has a Pentium D CPU in it now, can a be pretty certain a core 2 duo E7500 will work in it? It used to be same socket (both are socket 775 I'm told) means they're compatible; I'm ...
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3answers
480 views

Replaceing/upgradeing a Motherboard/CPU

So now that my computer is 4 years old I think its time to upgrade. I have replaced the video card, and upped the ram, but also want to increase my processor. I have an HP Media Center m7248n with a ...
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4answers
7k views

VirtualBox CPU usage 100% on host [closed]

I have installed VirtualBox 3.1.2 (latest) on my Windows 7 (x64). In the VirtualBox I've installed Windows 7 (x64). I have 4 GB RAM installed. The guest has been assigned a 1536 MB RAM. Sometimes the ...
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4answers
264 views

PC Upgrade: Is upgrading the CPU only worthwhile in this case? [closed]

I'm getting ready to upgrade my PC, but I don't have the money to upgrade the entire system. However, I think I'm in a position that will allow me to upgrade the CPU and upgrade the rest later. ...
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3answers
113 views

Mobile processors in desktops?

Processors meant for laptops usually need less cooling (so they're less noisy) and are much more energy-efficient, while providing computational power on demand. I think of building a home server, ...
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2answers
1k views

How far do electrons physically move in a single clock cycle in a (theoretical) 4GHz processor?

I was musing last night about computers and processors and this video of a 6-bit digital adding machine, and I know that 4 GHz seems to be the practical limit of mass-produced CPUs of the current era. ...
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6answers
3k views

Which should I upgrade first - RAM or CPU?

My computer is currently running with an AMD 1.8ghz X2 processor and 1GB of RAM. I'm thinking the RAM, but which should I upgrade first, the RAM or the processor?
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2answers
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My computer is using 6GB out of 8GB of RAM without proof

I have Windows 7 Home Premium with a AMD X4 965 Quad Core and 8GB of Crucial RAM. I have no idea why my computer says it is using 6GB of RAM when it doesn't show any reason. Below are the screen shots ...
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2answers
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difference between IRQ and Interrupt Priority level

Can someone tell me if the IRQ of a device is different to the Interrupt Priority level?
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2answers
2k views

installed windows 7 64-bit on a intel core duo machine

If I installed Windows 7 64-bit on an Intel core duo machine, will this cause any problems? It's a 3 year-old computer, so I'm not sure if it will work.
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1answer
303 views

Processor Upgrade HP Elite M9510F

I have an HP 9510F that uses the ASUS IPIBL-LB MB. It ships with an Intel Q8200 Quad Core processor but it does not support virtualization. Specs for the board from HP (ASUS does not list this OEM ...
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1answer
1k views

Intel P965 CPU Upgrade path

I'm currently running a DFI Infity P965 Dark-S Mainboard with Intel Core2Duo 6300 (1,86GHz, Conroe, OCed @ 2,8GHz). What are my upgrade options for the CPU?
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1answer
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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
1k views

Killing the Finder, Spotlight “Dead” in Mac OS X

For music making, I am writing a bash script (well, list of pkills or my own updated version) in OS X to remove unnecessary CPU-using programs. Even if I am forced to reboot afterwards, I do not mind. ...
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4answers
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CPU temperature between 39-58C, Is It Normal?

I have an Intel Core 2 Duo E8400, this is the temperature information at light load: And this is the temperature at heavy load: Is this normal? On one hand I have a SU user says that this is ...
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6answers
6k views

CPU Fan is Loud, but the Temperature is OK (I Think)

I recently find that my CPU fan is getting louder and louder. It is now so loud that I bother to type up a question on it. The first thing I check is the temperature using Core Temp, it seems that ...
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3answers
222 views

CPU not powering up

Tried disconnecting the PSU and checked it by shorting green and black wires. It is working. However, when I connect it back to the motherboard and try to switch on the computer, all I hear is a faint ...
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4answers
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How to enable multiple processors on XP SP 3?

I've got a Lenovo n100 laptop that's 3 years old. It dual boots the original Windows XP that came with it and Ubuntu, and I just now noticed that the XP installation, on the Task Manager, only shows 1 ...
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3answers
318 views

Should I overclock a dying PC?

I have a laptop (Compaq Presario V5000). It's about 4 years old now. My dad bought it at Walmart on Black Friday for $389 (it only had 384MB of memory (now it has 2GB)). It has seen 3 Windows OS's and ...
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2answers
66 views

Linking seperate cores to seperate hard drives

I have a quad core processor and the option to link my 4 ram chips seperately to each seperate core. Is it possible to do the same with hard drives. Can you link a core, ram, and hard drive together ...
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5answers
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Can I remove and put back the heatsink of my processor without reapplying thermal paste

If I remove the heatsink from my processor temporarily, then later put it back without changing the heatsink or CPU, do I need to reapply thermal paste?
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1answer
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What is the difference between T, E & P series Intel processor

I am looking at buying a new laptop and there seems to be a whole lot of processors to choose from. I am highly confused with the Core 2 Duo's with the T, P & E series processors. Can someone ...
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4answers
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What is considered temperature too high for a Core2Duo CPU on a notebook computer?

So I took the advice of installing SpeedFan (also because download.com has Editor's recommendation), and see that the temperature of my notebook's CPU (Intel Core2Duo) is about 60C and jumps up to ...
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1answer
237 views

Modern CPU for highly concurrent server applications?

I am looking for a hardware, which must run about 256 computationally intensive real-time concurrent tasks in 24 hour mode. Each task takes about 40-50 MFLOPs, so all tasks require about 10 GFLOPs. ...
0
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1answer
1k views

ACPI Throttling in Ubuntu

I'm looking to throttle my cpu through the ACPI. I've read up on it, but I keep receiving permission denied statements. I have 8 available throttling states. Here are the outcomes of my atttempts: ...
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6answers
4k views

Why is my CPU fan so loud?

I bought an old PC to use as a second PC. Everything is fine, except for one thing. The CPU fan is terribly loud! I did a lot with PCs but I never did much with CPU fans. If I want to replace it, ...
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3answers
1k views

Windows 7 notebook turn off by itself, how to check if it is due to CPU being too hot?

I have a Dell Studio 15 notebook, and it just started turning off by itself yesterday. Could it be that the CPU is too hot? I have had several notebooks before and every one of them I can put them ...
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2answers
32 views

monitor related problem

I've got a motherboard that when powered on, doesn't send any output to the monitor. but when connect the monitor to another motherboard, it works fine. so, it has to do with my motherboard. I want ...
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2answers
2k views

Core 2 Duo Processor E8400 with LGA 755 socket?

The motherboard on my PC (Dell XPS 410) has socket LGA 755 and according to the box on this processor I have, says it requires a motherboard with socket LGA 775. Will this processor work on the 755 ...
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1answer
264 views

Processor Pipeline Specifications?

Was just wondering if there exists a place where you can find pipelining specifications for specific processors (tells how many stages and a description of the stages) I have been searching for a ...
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4answers
16k views

How to see if turbo boost is working on I7 860 CPU?

I just build myself a new system with a Intel I7 860 CPU. When loading it using a single threaded application like Super PI, CPU-Z shows 2.933Ghz as speed. Now I understood that the I7 goes into turbo ...
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6answers
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Removing Little Snitch completely (Mac OS X Snow Leopard)

I uninstalled Little Snitch months ago. Or so, I thought. When opening Console.app, I see something like this: Here’s a textual log: 21/11/09 22:05:31 com.apple.launchd[1] ...