Tagged Questions

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

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2answers
2k views

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
301 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
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
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
6k views

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
26k views

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
317 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
16k views

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
2k views

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
10k views

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 ...
1
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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: ...
3
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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 ...
0
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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 ...
2
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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 ...
1
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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
23k views

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] ...
0
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2answers
136 views

One notebook core 'disappeared'

I've got Acer Aspire 5100, which, as in specifications, had once dual-cored processor. But now, one of the cores has mysteriously disappeared, and I'm not sure why (the processor now reports itself as ...
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4answers
4k views

Monitoring CPU Usage Over the Course of a Day?

Are there any apps I an install on client machines that will generate a report for me what app used what % of the CPU. We have some machines that are running, at times, VERY slowly. The machine will ...
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4answers
1k views

Is it insane to replace a CPU without replacing the heatsink?

I am upgrading my Celeron M 430 (1.8Ghz) with a Dual Core E5300 (2.6Ghz). I'm 90% sure that the processor is supported by the motherboard (a Fujitsu Siemens D2740-A1), but the processor has arrived ...
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5answers
6k views

Why has the size of L1 cache not increased very much over the last 20 years?

The Intel i486 has 8 KB of L1 cache. The Intel Nehalem has 32 KB L1 instruction cache and 32 KB L1 data cache per core. The amount of L1 cache hasn't increased at nearly the rate the clockrate has ...
2
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4answers
886 views

Processor details in Windows XP

I am using Windows XP - SP2. How can I check how many processors are available in my system and how many cores in each?
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2answers
220 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 ...
2
votes
1answer
2k views

Does the MSI V Class motherboard support AMD Phenom™ II X4?

Recently (in the last year) I have configured and upgraded my system. Motherboard: MSI V class Processor: AMD X2 4000+ HDD: 160 GB Now I would like to upgrade the processor. Will an AMD Phenom™ ...
0
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4answers
183 views

Comparing CPU's

I've always understood that a higher clock speed will make a cpu faster, but how much of a difference does the cache and other details of the processor make? Let's say I have a Q6600 that I've ...
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2answers
4k views

Minimum reasonable system requirements for Windows 7 Media Center

I'm looking at getting a Windows 7 Media Center box to replace my current MythTV box. I travel a lot and my wife doesn't like the maintenance required for Myth. Although in the past, I've built my ...
0
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1answer
338 views

945P chipset and quad core CPU - does it work?

I have an MSI 945P Neo3-f motherboard with the 945P chipset. Does it support a quad core Intel CPU, or is it too old? I couldn't find anything useful on the net.
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3answers
295 views

Single Quadcore or Dual Dualcore?

If you have to choose (everything else being equal) between one processor with four cores, and two processors with dual core, what are the points in favour of each solution?
0
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1answer
72 views

Will the newer of these processors be faster?

Here is a comparison of the processor in our current laptop, and a new laptop I'm considering buying: http://ark.intel.com/Compare.aspx?ids=27231,42791, Although the newer one is 1.3 (as opposed to ...
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5answers
3k views

How can I get more info on high-CPU rundll32.exe process?

I recently clean-installed Win7 on my HP8530. Everything works well most of the time, but for the last few days, every morning after my computer has been idle overnight, I find that rundll32.exe is ...
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1answer
5k views

How do I troubleshoot CPU temperatures in Ubuntu?

I have some questions concerning CPU temperature on my Ubuntu 8.10. My laptop shuts itself down, which I guess is due to high CPU temperature. I want to confirm this by looking at some system log ...
0
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3answers
282 views

Remove Unknown Throttling by any means

My CPU is being throttled. I have no idea why or by what app, but when I fire up CoreTemp32.exe it shows my CPU at 100% and my frequency at 999 MHz. I have a Dual Core 2.3 GHz. My coworkers have ...
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1answer
1k views

Windows 7 Via Hyperion 4-1 drivers

I have a clean install of Win 7 on some relatively old hardware. Everything works pretty well however my cpu is pegged at 100% most of the time. Task Manager shows srvchost as being a main culprit ...
0
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4answers
242 views

Per-Cpu utilization

I have read terms such as per-cpu utilization. Don't we have just one cpu in our machines ? Also there are two directories cpu0 and cpu1 in the sub-directory /sys/devices/system/cpu ... Do I have two ...
1
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3answers
259 views

hdd & cpu diasgnostic tools

i have a 4 years old laptop which makes a lot of noise: - hdd noise, - cooler noise. I need to detected which is my CPU temperature and also how to solve hdd noise. Do you have any idea? I just ...
4
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5answers
4k views

How to tell which process is hogging my CPU when they don't add up to 100%?

Ubuntu's System Monitor applet shows 100% CPU usage continuously. If I click it, the resources tab shows it at 100% continuously, too. If I go to processes, though, to find out which process is the ...
0
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5answers
4k views

How to reduce EMI from a computer?

A few months ago, I switched to T-Mobile for an android phone. Upon doing so, I learned that T-Mobile's service tends to be interrupted (drop to no connection randomly) by EMI from a computer. I've ...
5
votes
4answers
6k views

Is there a difference between AMD and Intel processors?

I am about to upgrade my dell machine and will getting a custom pc built soon. There are two options that I see in my budget for the processor: AMD Phenom II X4 965 Black Edition - Quad Core, ...
0
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2answers
5k views

Does a motherboard have to support 64-bit or is it just the CPU?

Do I need to have both components to support 64-bit, motherboard and CPU. Or is it just the CPU that matters?
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2answers
839 views

What is a good hardware monitor?

Does anyone have a good freeware app for monitoring laptop hardware? Things like temperature and fan speed. I had one, but after a few weeks it wanted me to pay.
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3answers
253 views

Do certain CPUs offer certain advantages for Windows 7?

I'm about to buy a new PC that will run Windows 7. My question: Do certain CPUs offer certain advantages for Windows 7? As a rule of thumb, more expensive CPUs yield better performance and more ...
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2answers
616 views

october 2009 imac, macbook, mac mini processor

Does anyone know the processor model used in the new imac, macbook, mac mini ? What I meant is for the 2.26 GHz processor ? Is it P8400 or P7550 or something else ? Thanks Michael
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3answers
3k views

Communicator.exe takes 96% CPU

My Communicator.exe is taking up 96% CPU. I have to run this program for work to chat with my coworkers... what could be causing it to use such a high CPU percent?