A CPU (Central Processing Unit) is the chip responsible for actually "doing" most the instructions given to a computer.
0
votes
0answers
31 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 ...
0
votes
0answers
9 views
Identifying disk readr/writer (Debian Linux)
I have the strange activity on my Linode. The Munin reports shows that there is constant writing to /dev/xvda at the rate of 30Kb/s. The Linode Graphs shows constant DiskIO at 48 Blocks/sec average. ...
-1
votes
0answers
20 views
What is a memory bank? [closed]
I'm trying to get an introduction to microprocessors and emulation technology (specifically of game consoles) and when looking at the Atari 2600 documentation/specification, it says that the ROM (or ...
-1
votes
0answers
24 views
What are the best kernel options for last generation Core i7 processors? [closed]
I'm currently playing with Gentoo Linux 3.8.13 kernel, trying to max out the performance of my Intel Core i7 3770K CPU.
Currently I did these changes in kernel. Now my system boots very fast, I can't ...
0
votes
0answers
21 views
Computer randomly restarting: mother board or processor?
My computer randomly restarts. Is it more likely my mother board or processor? So, i know which one to RMA first.
Windows 7 sp1 64bit.
mobo: p8z68 v/gen3
cpu: i7
Times it restarts:
randomly ...
0
votes
1answer
28 views
PC turns on for second [closed]
I bought a pc with the following spec like 1 nd a half year back!
Processor : Intel Core i5 2500
MotherBoard : Intel DH67BL
RAM : G-Skill RipjawsX 4GB
HDD : 500GB Samsung
Graphics Card : EVGA ...
0
votes
1answer
45 views
Using awk or cut command to get CPU percentage
I am trying to execute a Linux command through a PHP script to get the CPU percentage for each core:
… with cut:
$output = null;
passthru("mpstat -P ALL | grep 0 | tr -s ' ' | cut -d ' ' -f 4", ...
-1
votes
1answer
34 views
Faulty PSU or Motherboard? [closed]
I know that this question must have been asked tons of times, but I believe that sometimes it depends very much on the case. That's why I'm taking the risk of making a duplicate.
I have got an old ...
-4
votes
1answer
54 views
Why is Computer Processing Speed Measured in Hertz? [closed]
Why is it that processing speed is measured in hertz, and what is a 'good' processing speed?
Edit: What is it about processing speed that makes cycles per second an appropriate unit of measure. What ...
-3
votes
0answers
28 views
Is it possible to destroy your CPU and/or motherboard? [closed]
Is it? Excluding physical tampering or ridiculous overclocking is there a way in which either the motherboard or the CPU could be destroyed or damaged?
Just curious. Thanks
-2
votes
0answers
21 views
How to fix CPU socket pins and determine if chip is “dead” or not
Ok so the problem is my cpu, the socket pins, or both. Some of the pins are flipped upside down and for fear of breaking them I did not attempt further force. Also, I dumbly turned the computer on ...
0
votes
1answer
28 views
My CPU wont start until I un-plug and re-plug the power cable several times
My CPU wont start until I un-plug and re-plug the power cable several times either from the mains or from the back of the CPU. I have changed the power cable but no go....What might be wrong??
-1
votes
0answers
24 views
Which is better, A8 or i5? [closed]
http://www.flipkart.com/hp-pavilion-g6-2301ax-laptop-apu-quad-core-a8-4gb-500gb-win8-2-5gb-graph/p/itmdgtjcmdusnsky?pid=COMDGTJCRYXXV8CE
I am doing some research on what laptop to buy, and I am ...
-2
votes
1answer
66 views
Computer Randomly Powers Off
A few months ago my computer started randomly powering off, sometimes I would get a few hours, sometimes a few days. I first replaced the power supply (PC Power and Cooling Silencer Mk II) which ...
-1
votes
1answer
75 views
How does the microprocessor make the bits move from memory to inside of it? [closed]
I was just wondering, since it only fetches bytes that are read as circuit instructions to process data and the like, but how exactly does it "move", get the bits going, outside of the RAM IC to ...
0
votes
1answer
37 views
Specing out CPUs (more than just cores and clock)
This is not a production question, just something that I've been thinking about.
When specing out CPUs I know the general rule is a faster clock speed will make a core run faster and the greater ...
-1
votes
2answers
50 views
Dropbox consuming CPU cycles even when paused [closed]
Today I noticed that Dropbox consumes nearly as much as half of CPU time consumed by kernel_task on OS X 10.8.3, which is a pretty decent amount of CPU usage. So I paused it and see what would happen.
...
-1
votes
1answer
29 views
My MPC started on its own and the process mpch64.exe was running at 100%, why? [duplicate]
I was working and all of a sudden heard my computer fan spinning extremely fast as if I was playing a 3D intensive game. I checked my processes and quickly discovered the culprit - mpch64.exe. My CPU ...
3
votes
1answer
52 views
CPU gets stuck at 0.90 GHz and 53% usage cap
Configuration in question:
Model - Dell 1558
CPU - Core i7 740 @ 1.73Ghz - 2.93GHz
RAM - 6GB DDR3 1333Mhz
OS - Windows 8 Pro MSDN
Now this problem has started since yesterday.
My computer blanked ...
-4
votes
0answers
31 views
Is there a tablet that is not ARM architecture? [closed]
I have been looking around for a tablet and It seems like every tablet I come across has an ARM processor. Is it possible to have a tablet with a standard x86 or x86_64 processor? And if it is, why ...
0
votes
1answer
26 views
distinguishing between motherboard problems or cpu failure
my pc is not booting. After looking at some of the answers on this site I removed the hard drive( SAMSUNG HD161HJ) and removed the RAM chip. Upon powering it up it did not beep and the monitor also ...
1
vote
0answers
52 views
One CPU core stuck at 100% doing kernel stuff
A few days ago I started experiencing a weird issue - one core was stuck at 100% doing some kernel stuff. This problem is NOT OS specific: it occurs in Windows 7 (including Safe Mode), Ubuntu 12.04 ...
-1
votes
1answer
53 views
Advantages/disadvantages of virtualizing a CPU? [closed]
I saw that my virtualization tool does not virtualize my CPU. But, it virtualizes everything else. I want to know what could be the reason, advantage/disadvantage of virtualizing a CPU.
3
votes
5answers
264 views
How many memory addresses can we get with a 32-bit processor and 1gb ram?
How many memory addresses can we get with a 32-bit processor and 1gb ram and how many with a 64-bit processor?
I think that it's something like this:
1GB of ram divided by 32bits or divided by 4? to ...
0
votes
1answer
41 views
Confusion with terms -> FSB, QPI, HT, DMI, UMI
I'm a bit confused about some terms used by CPU manufacturers.
I know that FSB is a bus that connect CPU to Northbridge and that QPI (Intel) and HT (AMD) replaced this technology. The new ...
3
votes
2answers
310 views
Hyper Threading vs Overclocking
What is the difference between these two, and under what circumstances would I want to implement them? Are there circumstances when I would only want 1 and not the other?
According to Wikipedia, ...
2
votes
1answer
70 views
How can I get Linux to show total CPU usage?
I want to show how much the CPU is used over time.
Using system monitor, I am able to show CPU usage, but only the 4 individual cores. I want to be able to show a graph of the total CPU usage.
In ...
5
votes
2answers
111 views
Custom built PC slowly freezes up [closed]
So this is probably one of the weirdest PC issues I have ever experienced. I built my PC in the winter of 2011, so about 1.5 years ago. Here are the stats:
ASUS P8P67 (REV 3.1) LGA 1155 Intel P67 ...
0
votes
2answers
39 views
CPU Bottlenecking GPU?
At the moment I have these specs:
BIOSTAR Group, A770E3 motherboard
CPU: Processor AMD Athlon(tm) II X3 450 Processor, 3200 Mhz, 3 Core(s), 3 Logical Processor(s)
RAM: G.SKILL Ripjaws Series 12GB (3 ...
-1
votes
0answers
44 views
Dell Inspiron laptop has extreme lag issues as of late [closed]
I have a Dell Inspiron laptop with Windows 7. It's almost 2 years old. For about the last 9 months, the audio would occasionally be choppy when I listen to music. It would usually happen when I was ...
0
votes
0answers
43 views
Choosing between buying or building a midrange workstation [closed]
I need a new computer for data analysis and neuroscience modelling work. I plan to use Matlab and SciPy for modelling neuromodulator interactions in a small neural network. For this, I can purchase or ...
0
votes
1answer
39 views
BIOS provide incorrect CPU tempatures?
I recently built a new AMD computer. The computer runs great (so I think). I have an after market fan on the processor. I installed a program called Core Temp to monitor CPU usage and temperature. The ...
0
votes
1answer
37 views
My laptop says I'm using around 10% CPU but it's running at 1.9GHz (i7 q720 rated at 1.6GHZ) constantly
as the title says, my laptop seems to be running really quick when technically it's not doing anything. The fan is always on full and although it hasn't got any stability issues I can't help thinking ...
0
votes
2answers
50 views
How to determine root cause of poor laptop cooling?
I've been using a Lenovo T420 laptop for 2 years. Usually when playing 3D games with discrete GPU, the CPU/GPU temperature goes to 100 °C-ish. When browsing websites, it's about 70 °C. It seems the ...
0
votes
1answer
34 views
Overclocking AMD Sempron +2400
Basically, I wanna ask is there a safe way to overclock the mentioned processor to 2.0Ghz (Stock - 1.67Ghz, Single core). Now it's running @ 1.8Ghz and 1.5something V, as I run it @ 2.0Ghz it becomes ...
0
votes
1answer
89 views
Does the BIOS of a laptop still work if I upgrade the CPU from dual core to quad core?
If a particular laptop model's BIOS supports dual core processors with VXT virtualization and multithreading with turbo boost, then will it also support higher-end quad core processors with VXT ...
0
votes
1answer
93 views
What do Intel's socket package specifications mean in detail?
What is the difference between
FCPGA988
PGA988
rPGA
rPGA988B
BGA1224
FCBGA1224
Do some mean that the BGA is soldered to the board and cannot be removed? BGA is soldered versions only, right?
...
0
votes
1answer
117 views
Can I upgrade my laptop processor from dual core B960 to i7 quad core? [closed]
I have acquired a Lenovo G580 laptop that has a B960 dual core I want to upgrade to an i7
Intel® Pentium® Processor B960 (2M Cache, 2.20 GHz) DDR3-1066/1333
SOCKET supported FCPGA988, PGA988 MAX ...
0
votes
1answer
70 views
How to find different Intel processor's P-states?
Different p-states will let processor core work at different frequency level and voltage level. It's enabled by Intel Enhanced Speedstep technology.
I want to do some power management research. ...
2
votes
2answers
55 views
Video encoding application for a two-processor, 16 core system
I need to perform some video encoding, but most of the applications (or settings) that I've used will not take full advantage of my workstation.
I'm using two Xeon processors, 8 cores per processor ...
0
votes
2answers
27 views
Process explorer cycle and time not matching
I have a question about process explorer.
I am checking the performances of two different processes:
skype cycle : 4,600,000,000 ; skype total cpu time : 5:00.000
chrome cycle 200,000,000 ...
0
votes
0answers
26 views
Are idle tempatures on HWMonitor changing as much as 5 degrees in a second “normal”?
I'm monitoring my heat from about 7% CPU usage on a Core i5 - and HWMonitor is reporting temp. jumps as much as 5 degrees then within 500ms it jumps somewhere else again. Is this normal?
2
votes
1answer
40 views
Execute OpenCL Code on the CPU
I want to execute OpenCL code on a PC which doesn't have a graphics card, neither any other hardware component which is able to execute OpenCL. Is it possible compile my OpenCL code in a way that it ...
1
vote
2answers
89 views
What is wrong with my computer case air circulation. My CPU goes up to 80 degrees
So I assembled this computer and I think I made a mistake with the fan positioning.
My CPU temp goes up to 80 degrees and I have to open the case and put a fan under the case to bring it down. It ...
1
vote
1answer
48 views
What controls the cpu clock speed/bus speed?
Does the cpu clock speed and front side bus get generated by the crystal oscillator/clock generator? Or does it get generated on the cpu? If it gets generated by the oscillator, how does it know what ...
0
votes
2answers
88 views
Upgrading laptop RAM Dell XPS 15
I bought my Dell XPS 15 L502X laptop almost 18 months ago. It has 4GB RAM and am thinking to upgrade it.
Processor: Intel 2nd Generation Core i7 2630QM
According to processor specifications, it ...
0
votes
1answer
64 views
Upgrade laptop CPU from i3-330M to i5-whatever
I have a VPCCW2S1E with:
CPU: i3-330M cpu
Intel® NM10 Express Chipset.
I'd like to upgrade it with an i5. (or anything faster!) I see my socket is either a BGA1288 or PGA988 and an i5 such as ...
0
votes
1answer
123 views
Disabling System Interrupts in Windows 7 - (high CPU usage, semi solved)
I know the system interrupts topic is pretty common with varying solutions but I had a question about how to implement a solution in Windows 7 the way I did in Ubuntu 12.04.
Background:
Bought an ...
-4
votes
2answers
168 views
CPU Isssues reaching 80-100% [closed]
When I turn on the computer and directly go to Process Explorer my System Idle Process is 97% which as far as I've been able to tell is a great thing.
My problem is that after a while with the ...
0
votes
3answers
244 views
64-Bit Supporting Processor and 3GB RAM. Should i go for Windows 8 32-bit or 64-bit?
This might sound like a duplicate but i couldn't find a clear answer in any of the questions answered in this site or any other.
I have a laptop with AMD Athlon(tm) II Dual-Core M320 processor which ...
