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

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Intel® Core™ i7-4700HQ for visual stusio [on hold]

I am looking for a laptop to run visual basic. will the Intel® Core™ i7-4700HQ Processor, be good for this?
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34 views

Constant beeping with new PSU, no video output

So, my friends computer is not producing video output. The monitor works, I've tried the CPU and RAM inside of my computer, so I know they work. On the initial build we forgot standoffs and the ...
1
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1answer
16 views

Is isopropyl alcohol 90+% safe for cleaning copper heatsinks and processors?

I'm preparing to replace my laptop's CPU and I'm curious about using isopropyl alcohol on both the copper heatsink and CPU. Will I be better off purchasing some special surface purifier? Also, if I ...
2
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1answer
25 views

How do I use linux processor affinity to dedicate 2 cores to user1 and 2 cores to user2?

at first I wanted to dedicate 2 cores(4 threads) to one java PID, and 2 cores(4 threads) to the other. However the volatility of these programs makes me think that they will end up crashing and ...
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15 views

Looking for (cheap) Big-Endian Linux/BSD development board [on hold]

I'm looking for a reasonably-priced hardware development board with big-endian CPU, which is capable of running Linux/BSD OS. Sadly most ARM boards (e.g. Raspberry PI/Beagle) are not relevant - their ...
3
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3answers
443 views

Compare Intel Processors - Quad Core vs Dual Core

I have customized hp notebook and I am a bit confused about processors. I prefer quad core since I will have lots of things running simultaneously, web browser, visual studio, ms-sql... But Dual ...
1
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2answers
34 views

What direction should the heatsink fan face?

My current setup looks like the following: Rear fan <----- Heatsink Fan <----- Heatsink Case: Arc Midi R2 Heatsink: Scythe Ashura with stock fan I've placed the Fan so it sucks the air out ...
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0answers
10 views

I7-3630QM Processor clock ratings

I'm researching a laptop for college, and have a loose set of system specs. I found a laptop that meets most of the requirements with little or no modifications, except the processor isn't what I'm ...
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24 views

CPU speed scaling between clock speed, generations

So, how does CPU speed work? Is 1GHz 1000x as fast as 1MHz? If not, how does it scale? Is the i5 different from the i7 or the i3 in a substantial way...what ways?
2
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39 views

MemTest86+ bad adresses constant despite swapping sticks, processor/MOBO to blame?

(Sorry for the wall of text, but people seem equally critical of missing details) After about 2 years without trouble, I've been having issues recently with system instability, BSODs, random ...
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1answer
29 views

Laptop cooling slacking off

Recently i've ran into the problem that my laptop had collected too much dust inside and starts overheating in difficult tasks (i.e. games), this happens every half a year or so, as always i opened ...
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1answer
24 views

Will overclocking my chipset increase the performance of integrated graphics?

My AMD Radeon HD 5830 recently broke (overheated because the fan stopped working), and I am currently attempting to run games on integrated graphics, on my chipset. Many games are responding slowly, ...
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24 views

CPU turns off randomly [on hold]

For the last few days, I have been having a problem. My CPU turns off randomly. Mostly it goes off during start up, but sometimes I can work for 6-7 minutes before it just turns off. As if I had ...
0
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1answer
34 views

x86 i386 i686 amd64 i5 i7 archtecture processor confusion

I noticed those items x86, i386, i686, amd64, i5, i7, archtecture, processor from the web, from my own notebook, from book readings. But I am really confused by those terminologies. I try my best ...
0
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0answers
13 views

mITX Intel dh77df MB and i3 3556 setup not booting, fan comes on for 2 secs

So I was installing a new SSD into the machine. Worked fine then I booted again and it just stopped. ( I did see the mb spark up a little when i booted it ) I got a constant beep (manual says thermal ...
0
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1answer
25 views

How much memory is being used on the gpu by each PID?

How do I know how much memory on the GPU is being used by each process, CUDA compiled code using 1 processor, accessing 1 of 2 M2090 Tesla cards available on a 16 core node on an HPC? ...
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2answers
53 views

CPU usage 99% constantly

My computer is running windows 8, and suddenly started running slowly. When I open the task manager, it tells me that the CPU is using 99% - sometimes the disk usages jumps up as well. The strange ...
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3answers
34 views

Where can I look up the yet highest used cpu speed on my computer?

Is there a log where I can look up the yet highest performed speed of my cpu on windows 8.1? For example if I wanted to know if the cpu was overclocked at some point.
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26 views

How to detect a bottleneck in the system?

I run a Mathematica code which takes one hour to be finished. During this one hour the CPU never reaches the 100%. It reaches to 50% or around that. The CPU is Xeon e5-1650. Could it be that there is ...
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0answers
47 views

How to benchmark 4k video playback capability [closed]

4K screens are becoming more and more common, and e.g. choosing laptops or building htpc setups it could be the most important hardware aspect. Is there some easy way to get a benchmark of a systems ...
0
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0answers
22 views

Slow Harddrive is Dragging the System

I have an HP Pro 3000 SFF running Window 8.1 Update 1 & Ubuntu 14.04 LTS. It uses an Intel G45s Chipset, a Hitachi HDS721050CLA362 500 GB harddrive, an Intel Core 2 Duo E8400 processor, and has 4 ...
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3answers
54 views

Is it possible for a computer to be too cold?

My computer runs about 25-27 °C, which is okay during Winter, because I keep the house at about 20 °C. I am a bit concerned that it might be too cold during the summer months and that condensation may ...
0
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0answers
16 views

Are there two seperated schedulers in major operating systems, one for processes and one for their threads?

Let's assume a process is given the CPU on a single-core CPU system by the scheduler and let's assume this process has 10 threads. Who decides which of the ten threads gets the CPU? In other words, ...
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1answer
44 views

Is it possible to replace the CPU on my Asus X200MA?

Ok so I have an Asus X200MA and I was wondering if it is capable of getting it's CPU replaced or if it's current CPU is permanent
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21 views

In Virtualbox, is it possible to change the emulated CPU name?

I have a Virtualbox VM running Windows 7. When I open Start -> Right click "Computer" -> Properties, I get the real CPU name and plausible CPU speed (not sure if it's exactly the same). Now I want ...
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2answers
28 views

Best practices for thermal paste for CPUs during maintenance

I built my PC my self with a Core i3 4130 recently. It turned out that I forgotten to apply thermal paste after a time so I "unbuilt" it and removed the CPU fan. There was a big round thing on my CPU. ...
2
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0answers
15 views

Why do I get better performance on VMWare when I enable all cpus along with adding cpulimit?

I'm curious but at the same time also would like to share my findings of the increased gaming performance in VMWare by enabling all virtual cpus and limiting the VMWare process with cpulimit ...
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1answer
85 views

Which CPU is expected to have a better battery life?

I'm considering the following two cpu models for my next laptop: Intel® Core™ i7-4700mq, i7-4500U processors I understand that the 4700 mq will give me much more computing power, and that the 4500u ...
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1answer
35 views

Replacing processor on a motherboard. Any restrictions? [closed]

When I replace the processor module to a compatable one with a motherboard, are there any restrictions that I should follow? I will clean install the os and don't need any of the data I have ...
14
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2answers
934 views

What is the difference between Pentium(number) and just Pentium?

I noticed some older CPUs are branded as Pentium(n) (Pentium followed by a number), but there's some relatively new computers on shelves that just say Pentium with no number. Are those processors ...
0
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1answer
15 views

Segmentation fault while installing any linux distro (or windows)

I'm need of a little help from you. I'm having troubles while installing any distribution of Linux (or even Windows) in a computer .. I never had troubles installing an operating system in this ...
3
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1answer
47 views

Is there a way to identify the busy (CPU-consuming) tab in Firefox?

Sometimes there's a nasty, guilty, CPU-hogging tab in Firefox that's maxing one of my CPU cores and making the whole browser sluggish. I'd like to find it and close it. Sometimes I get lucky, but ...
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2answers
55 views

HP EliteBook 8470p running extremely hot

(tl;dr; see my bold text) I've been using this HP EliteBook 8470p for well over a year - it has an I7 proc with 8gb of RAM and before ever turning it on, I swapped out the HD with a 512gb SSD. I was ...
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26 views

Can a hot PCI adapter slow down the computer?

Using the "watch sensors" command in Fedora, I see that while the temperature of the CPU's are normal (70 degrees at most), the PCI easily exceeds 90 degrees (celcius, of course.) Once the PCI gets ...
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22 views

Both cores run constantly at 100%

I run a dualboot Fedora/Windows 7 computer. It will work fine for the first ten minutes or so after booting, after which it is rendered completely useless and slow. CoreTemp gives that both cores ...
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1answer
38 views

Diagnosing Motherboard/CPU/ (most likely) GPU

OK, so I am trying to salvage my Mum's old PC for which she had bought a new power supply. After that it worked for a long time. After that time, it wouldn't boot (fans would come on very loud, power ...
0
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1answer
31 views

Difference between different hardware of computer of recent times [closed]

While searching for good desktop for software development I came across many configuration.I become confuse over different thing as I don't have detail knowledge of Hardware. Difference between Core ...
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23 views

CPU Clock, Hirens BootCD, Windows XP

I have an older laptop I am thinking of multiple uses for it. The laptop ran windows xp terribly slow so I did a fresh install of windows xp and it still runs terribly slow(yes i installed the correct ...
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2answers
33 views

How are CPUs so freakin fast

I am going through a book on C and it said "Write a program that counts from 1 to 300 million, printing the number only if it is a multiple of 100 million. Use a stopwatch for fun to time the ...
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Is Intel Core i7-4790K compatible with Asrock G41M VS3 R2.0 [on hold]

Is it possible to replace an old Quad Core Q6600 2.4 Ghz with the new Intel Core i7-4790K into a Asrock G41M VS3 R2.0 motherboard? If it does: Will the mobo be able recognize previous Windows 8.1 ...
0
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2answers
33 views

RAM and CPU compared to mobo clock [closed]

I have a general question concerning RAM and CPU speeds compared to a motherboard speed. Motherboards have e.g. 100-133MHz clock. CPUs have some frequency multipliers and memories I suppose have some ...
0
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1answer
28 views

i7 (first-gen) running memory on 1066Mhz vs 1600Mhz - any performance loss?

I tried to read about this, like what is the actual difference, but I could not find any benchmarks or helpful posts. Most of them are simple placebo effects, like "oh my god the 1600mhz module made ...
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2answers
69 views

motor-like whine from CPU area

I have an odd sound coming from the area of my CPU. If i was to describe the sound I would say it sounds something between like a air filtration system for a fish tank when it has no water to pump ...
6
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3answers
448 views

What is the difference between the number of cores and the number of logical processors? [duplicate]

I have been doing some image processing on my computer using Erdas Imagine. Specifically, I am running a 5x5 median filter on imagery. I can specify the number of processes that occur simultaneously ...
0
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2answers
45 views

How specific is RAM to a CPU?

I am fully aware that you need to get RAM with a supported speed (1333mhz or 1600mhz in my case). However, must a CPU also support the RAM in someway I am unaware of. I ask because my RAM just ...
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1answer
29 views

Is it necessary to renew thermal grease on Acer AO722?

Did anyone renewed the thermal grease on the Acer AO722, there is a need to renew it on this laptop? If yes how can I know for sure that I should to do it ?
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1answer
21 views

Upgrading Old Hp Proliant DL180 Processor G1 [on hold]

Can i update the HP Proliant DL180 Generation 1 Processor with: Intel Xeon E5405 (12M Cache, 2.00 GHz, 1333 MHz FSB) or Intel® Xeon® Processor 5130 (4M Cache, 2.00 GHz, 1333 MHz FSB) Is it ...
2
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2answers
57 views

Does my GPU finally needs thermal compound?

I have the following PC configuration and since September 2011 when I bought and assembled it the only maintenance I did was cleaning every fans with compressed air. SSD: Crucial RealSSD M4 128GB ...
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70 views

Why my CPU heavily loaded?

Idle CPU load ranges 30-80%, when performing any tasks - 100%. problem in linux and windows. The computer is not dusty, model acer ao722, fan is working. Sensor shows initial termperature - 57 C, idle ...
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63 views

CPU overheats when display turns off

Since about a week I’ve noticed that my CPU heats up very badly as soon as the display turns off. I can't find any suspicious processes when I resume, but, if I leave the display off for more than 20 ...