Questions tagged [cpu]

The part of a computer responsible for performing computations, often referred to as a processor.

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Safe temperature range for a Core 2 Quad CPU? [duplicate]

Possible Duplicate: Does anyone know the temperature ranges one can expect on a core2 duo I've looked around for an answer to this for a while, and have found many conflicting answers. I've heard ...
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How do I know if my linux kernel is running in 32bit or 64bit?

When I do a cat in /proc/cpuinfo it shows a line with clflushsize : 64 Does this mean my kernel is running in 64 bits?
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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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How does the CPU write infomation to ram?

My question is, how does the CPU write data to ram? From what I understand, modern CPU's use different levels of cache to speed up ram access. The RAM gets a command for information and then sends a ...
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3answers
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140W CPU on AMD780?

I've got the M3A78-EM mobo (http://www.asus.com/Product.aspx?P_ID=KjpYqzmAd9vsTM2D&content=specifications), based on the 780G chipset, that claims to support 140W CPUs (like Phenom II). However, ...
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100% CPU use when new usb device plugged in - services.exe / Windows Server 2003

On my server I am trying to install a new usb drive but all that happens is that the system starts using huge amounts of processor cycles with services.exe. On closer inspection with process explorer ...
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Why is a single thread spread across CPU's?

I'm just curious why the scheduler constantly moves an app between CPUs, rather than keeping it on one. It looks a bit silly to have 4 cores at 25% rather than one at 100%. Does it has to do with ...
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How can I monitor the CPU temperature under linux?

How do I monitor and display the CPU temperature using Linux?
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RAM, Processor, L2Cache, Etc. - What gives you the most “Bang for your buck”?

I am not a hardware person when it comes to computers so when I buy a new one I just pick the one with the biggest numbers, but I know I am most likely wasting money. If you're going to purchase a ...
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Core 2 duo desktop, but taskman and perfmon only report one cpu

I have a core 2 duo desktop, but in taskman i can only see one panel in the performance tab, where i'm certain there should be two. Also, in perfmon, under Processor -> % Processor Time, there is only ...
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4answers
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Core 2 Quad or Phenom II? [closed]

I'm thinking about building a new machine. It would be used for video processing, development, etc. Not gaming. 4 cores seems like a reasonable solution for this. The question is whether to go ...
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Setting a default CPU Frequency in Ubuntu?

How do I get Ubuntu to select a default cpufreq on boot? These are the frequencies my CPU has available: $ cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_frequencies 2300000 2200000 ...
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Software that will tell me my CPU's temperature? [duplicate]

Possible Duplicate: Good software for measuring computer temperature? Hi, What should my i7 920 temperate be under normal load? I have a gigabyte ex58 ud4p mb.
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Are faster processors hotter?

Let's take the Intel Core 2 Duo P7350 and P8600 for an example. Both have a 3MB cache and a 1066MHz FSB, but the P7350 runs at 2.0GHz, while the 8600 runs at 2.4GHz. Is there a tradeoff between heat ...
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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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Does anyone know the temperature ranges one can expect on a core2 duo

Some background. I'm having problems with my computer suddenly shutting down and then refusing to start unless I wait awhile. So I'm assuming it's a temperature problem. I installed SpedFan and it ...
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Processor noise. What generates it?

So, I am probably not alone in noticing that any processor makes a high pitch buzzing sound while working, and this sound is more noticeable and varied in pitch when computations are performed. I also ...
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286 views

Performance for Intel's new low-voltage CPUs

I've been laptop shopping recently, and I'm intrigued by the Acer Timeline series. It seems to fit somewhere in between "netbook" and "power laptop" performance-wise, and is rated at 8 hours battery ...
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Whats the difference between intel Dual-Core and Core 2 Duo?

Whats the difference between the Intel Dual-Core(brand name) processor and the Core 2 Duo? It seems like clock speed is the only difference, but I want to make sure that is the case. It seems like ...
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2answers
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Cooling Atom CPU with 12cm fan?

Before I go ahead and try to build my very own case to do this... has someone bought a mini-ITX board like the Atom-based Gigabyte GA-GC230D, and removed the small CPU fan that comes with it to ...
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1answer
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What steps do you take when overclocking?

When overclocking your system? what steps do you take to get a maximum but stable overclock out of your system? I've personally just slammed up the FSB speed until my system can't run Prime95 for a ...
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How to automatically kill and restart a specific Windows application if it begins taking 100% CPU?

I have one program running in the background (so I can use a remote controller with my PC) but every now and then the program crashes and begins using 100% CPU (I have quad-core, so it's 25% CPU usage)...
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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 desktop:...
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Given a processor specification how can I figure out what RAM it can use?

If I have a number of varying processor specifications (x86, x64, PII, P4 etc) can I accurately calculate the memory (speed, size, etc) that will work with the CPU? I appreciate that the motherboard ...
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Can someone clear up the terms Core Duo CPU, Quad Core, Dual CPU, etc.?

I'll be buying a new computer in the next couple months and want to understand the dual/duo/two CPU issue: Core Duo CPU (is this one "duo" CPU or two? Quad Core (four cpus?) Dual CPU (two cpus?) 2 ...
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2answers
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Do the AMD Phenom-II chips have the TLB/errata 298 problem?

I am looking at building a new PC and thought the AMD Phenom-II X4's were a great value for my needs. I know that the older Phenom chips with "50" at the end of the model number were the fixed ...
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How to change microprocessor Clock Speed

How to change microprocessor Clock Speed for Inter P III and Intel GS810 Motherboard ?
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2answers
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Are all recent multi-core processors 64-bit?

I think that my intel core-duo processor in my 4 year old laptop is 32-bit. But since the core 2 duo introduction, can I assume that for intel at least, multicore processors will all run a 64-bit OS?...
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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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Choosing Dual or Quad Core [closed]

I was reading the Jeff Atwood post on this topic and was wondering how much of that is still true today. His post is from Sept. 2007. This question stems from another question I asked recently which ...
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What's the difference between multicore proc and multiproc system?

I wonder what's the difference between a dual core computer and a computer with 2 processors on the mother board.. I think it's something related with the threads but a I don't understand it very well....
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What are “Instructions per Cycle”?

I've been learning a little bit more about how processors work, but I haven't been able to find a straight answer about instructions per cycle. For instance, I was under the impression that a four ...
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4answers
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Dual CPU Socket Motherboard for AMD Phenom II X4 [closed]

I have my eyes on the AMD Phenom II X4 955 Black Edition Deneb 3.2GHz at NewEgg. I want to build me an 8 core machine. Is there any motherboards out there that will take 2 of these AMD beasts? The ...
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3answers
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Does Lapping a CPU / Heatsink actually drop the temp?

i've been watching some YouTube vids about Lapping a CPU. I've never heard of this modding technique before and, though extreame, I was wondering if it acutally works? Assuming you lap your cpu and/...
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Is it possible to use an Intel Q8400 CPU in my ASUS P5N-EM HDMI mobo?

I have an ASUS P5N-EM HDMI motherboard. Currently, it's using an oldish P4 cpu. Works fine. I just received a spankin' new Core2 Quad Processor Q8400 a few mins ago. Unopened, in the box. I have no ...
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Can a 32 bit OS run in a 64 bit processor?

What's the difference between 32 bit OS and 64 bit OS? Can a 32 bit OS run in a 64 bit processor?
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Does the Intel i7 offer real improvement over its predecessors? [closed]

As the questions title asks, do the new processors from Intel offer real, as in noticeable, improvement over the previous quad core ones? What does the i7 actually offer that is new or is it simply a ...
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Can I reduce the CPU speed of my MacBook when on battery?

I've got a MacBook with a Core 2 Duo CPU. I've got CoreDuoTemp installed which can show the current speed of the CPU. It appears to always show: Mini : 1.0 GHz Maxi : 2.0 GHz Current : 2.0 GHz I ...
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How fast is each core in a dual-core processor?

My Macbook has a 2.4 GHz dual core processor. Because it has two separate cores, that means it can execute two functions at once, right? So does that mean each core is approx. 1.2GHz each (for a ...
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2answers
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Maximum CPU Temperature for Core 2 Duo E6400

What is considered to be the highest safe CPU temperature when overclocking? I have a Core 2 Duo E6400 overclocked to 2.85GHz with 1.2vCore. This runs at 29C idle and 45C under load. These ...
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5answers
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Why would my computer start booting then suddenly turn off?

I removed the CPU heatsink/fan unit from my desktop computer and put it back. Now when I turn on the computer, it starts to boot, gets to where it starts checking devices, then just turns off ...
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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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Should I choose 32 or 64 bit for Linux?

I own a Linux workstation which currently has 4 GB of RAM and planning to go for 8 GB in the near future. CPU is a Core2Quad Q9550. Should I install a 32 or 64 bit variant of Linux?
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How do Xeon processors differ from regular processors?

Yes I know that Xeons are meant for server use, require different motherboards and you can have more than one of them in a box. But technically how is a Xeon processor itself different from a regular ...
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What are the benefits of a dual-core CPU over a quad-core in a desktop PC?

I know that in most cases when you buy a dual-core CPU for the same price you could get a quad-core, you end up getting 2 cores that are faster individually than the 4 cores individually in the quad-...