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

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Differences between Intel i7 “M” and “U” series

What are differences between 4th-gen i7 M and U processors? I know about: core voltage TDP socket price But is there something more? Some differences like slower cache, reduced instruction set?
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2answers
66 views

What does high ambient CPU mean?

I have run userbenchmark test, the results are here: http://www.userbenchmark.com/UserRun/357122 According to them, the PC has high ambient CPU. !!!Very high ambient CPU load. These results have ...
0
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2answers
17 views

What ram can i use?

The intel website tells me that the Intel Core i7-4510U supports DDR3L 1333/1600, LPDDR3 1333/1600. But the crucial memory site scanned my system and says that i can use 16GB kit (8GBx2) DDR3 ...
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0answers
17 views

Microsoft, Revit and Photoshop are slow on my HP ENVY 15 TouchSmart. Any suggestions to improve?

I am trying to use Microstation, Revit and Photoshop in my laptop but even though I would expect I to go super smooth I need to spend time waiting for it to respond. My laptop is an HP ENVY 15 ...
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0answers
14 views

Weird processes prevent me from clicking Apple logo when I go to shut down MacBook Pro

I just got a brand new MacBook Pro and am very conscientious about keeping it clean and running fast unlike my last MacBook Pro. After about a month I started noticing that when I go to shut down ...
0
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0answers
23 views

Is there an advantage to a good GPU for gaming and programming? [on hold]

I want to build a personal computer that will be used mainly for programming (like writing and compiling software, mostly Android custom ROMs and stuff) and some good gaming. Is there any added ...
3
votes
1answer
20 views

How are clock rate measured and what does it mean?

After some Wiki researches about clock rate, I find two question: What does a cycle mean? How does a cycle affect the processing speed? Sorry for being a noob.... But really hope someone can ...
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2answers
3k views

CPU fan turns on and off repeatedly without booting

My PC has suddenly stopped starting up. On checking with case open, the CPU fan starts running when the power is turned on, but it stops after about 2-3 seconds, restarts again after about 2-3 seconds ...
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2answers
81 views

Instruction assignment with multiple CPUs

Maybe this is a stupid question but I am trying to gain a better understanding of hardware inner workings... If a machine has two or more CPUs, which hardware component is actually responsible for ...
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0answers
28 views

How instructions run in parallel? [on hold]

Maybe this is a stupid question but I am trying to gain a better understanding of hardware inner workings. If a cpu has multi threads and we have a group of instruction set to assign it. As I read ...
0
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1answer
27 views

Computer randomly freezes: screen turns black but fans still spin

So I'm having this strange issue with my HP computer. Randomly when using it, the screen suddenly turns black and I have to restart it. But when this happens, even though the screen is off, fans are ...
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1answer
28 views

Doubts regarding multithreading and hyperthreading [on hold]

Today I was trying to understand what multithreading and hyperthreading are. However I have several doubts regarding it. In multithreading, what happens when two threads try to modify the same ...
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0answers
10 views

Lenovo 3 14, Intel 5500U, HDMI -> Maximum Resolution

I've got the machine listed in the title, a Lenovo 3 14, Intel 5500U, HDMI. I just asked Lenovo technical support to see what kind of display I could attach. I'm thinking about buying a high res ...
5
votes
1answer
475 views

Does a CPU clock frequency vary on-demand?

On my machine (not a personal computer), I have 24 cores (2.4GHz) and I currently don't have any important process running. Right now, are all of my 24 cores running/vibrating at 2.4GHz or are some of ...
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2answers
446 views

Using Server CPU for Desktop Applications

Though it's a n00bish question I haven't found any clear answer anywhere even after long days of googling. Recently I am planning to use an AMD Opteron Quad Core 2350 for my home lab. I'll not run it ...
2
votes
1answer
18 views

Intel i5 4690k randomly started maxing out at 100% usage when I open games?

So first, I should point out that I had a similar experience a few months ago (at least I assume it was the same as the symptoms were the same), and I ended up resorting to reinstalling Windows 8.1 ...
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2answers
35 views

Linux : let process run per CPU

My server has 4 CPUs, and I'm parsing a file using grep. It's very slow using just one process. Is it possible to let run four processes using these 4 CPUs? How to do it ? Thanks.
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1answer
20 views

One Xeon E5-2620 or two Xeon E5-2407 for simple virtualization tasks? [on hold]

i'm configuring our first real server on Dell website and i don't know if i should choose one processor (2620) or two (2407). The server will run XenServer with 5 o 6 VMs (Debian and Windows) with ...
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1answer
18 views

What happens 'internally' on a unstable/overclocked/undervolted CPU?

When you undervolt or overlock an CPU, when it passes a certain limit it starts to make the system unstable, reboot, etc. But these are the effects of it. What I'm curious about is what happens on ...
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8answers
7k views

Computer randomly restarting: motherboard or processor?

My computer randomly restarts. Is it more likely my motherboard or processor? So, I know which one to return or replace first. Windows 7 SP1 64-bit Motherboard: Asus P8Z68-V/GEN3 CPU: Intel i7 ...
0
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0answers
27 views

Slow response time windows 10 lenovo [on hold]

I purchased a lenovo edge two weeks ago and upgraded from windows 8 to windows 10. Most of the time my computer is great and I can switch, open, and interact from program to program very fast. ...
0
votes
2answers
75 views

Windows 7, left alone for 5 mins and system pushes cpu to 20% until i press a key or move mouse

I have scanned with avast a few times for virus's but nothing has been found, however.. every time i leave my computer for about 5 minutes the process labelled 'system' which is the 'ntoskrnl.exe' ...
0
votes
1answer
21 views

CPU, RAM and FSB frequency

I built my own PC out of parts from the internet. Motherboard: Asrock G41C-S - motherboard specs CPU: Intel Pentium Dual Core E5700 3GHz GPU: AMD Sapphire Radeon HD 7500 1GB GDDR5 My old RAM ...
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0answers
35 views

Issues with high CPU utilization on a Surface Pro 3

Currently problems being faced constantly is really high CPU demand which is leading to overheating issues in my Surface Pro 3. I have conducted a Power Efficiency Diagnostics Report to understand ...
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0answers
29 views

Late/early CPU initialization

Just finished building my computer today and I have run into a problem.... When I boot up my computer I get a black screen for around 2 mins and the debug LED reads 63 to 67. Once the BIOS screen ...
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1answer
9 views

Motherboard ga-g33-ds3r. pwr supply

I am bench testing a gigabyte ga-g33-ds3r which is giving power problems. When the 4 pin power plug is inserted into the motherboard socket- both CPU and video card fans run but start and stop every ...
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2answers
13k views

What happens if I use RAM of a faster speed than the CPU supports?

Looking at the Intel E3-1230v2 CPU, under Memory types it says "DDR3-1333/1600". My question is, in what way does the CPU limit the RAM speed? What would happen if I put in a DDR3-2133 RAM chip ...
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votes
1answer
52 views

ASUS P9X79 WS sudden failure

I used my build for only 4 hours, then suddenly it shut itself down and now refuses to boot. LED light CPU_LED in glowing blue. According to manual it shows that problem is in CPU. What might the ...
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2answers
50 views

Autothrottle CPU based on usage

Is there a program that allows me to lower the CPU multiplier if the "utilization" goes above a certain percentage? My CPU overclocks fairly heavily (using the multiplier and "turbo-boost"), and if I ...
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0answers
17 views

CPU fan suddenly at 100%

yesterday evening my CPU fan started to do crazy stuff. Currently it only knows "normaly working" and "100%". For the system, it is a quite new medi-core system, configured/build by myself and worked ...
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votes
0answers
41 views

Dual CPU for game server [closed]

Let's say I'm running a server at home which is hosting 3 TF2 (32 players) servers, 3 Garry's Mod servers (24 players) (one with many mods and 32 players) and a Minecraft server with a lot of mods (50 ...
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0answers
28 views

Is there any utilization of “GPU in CPU” (e.g. skylake) if there is stand alone GPU in the computer?

Intel dedicated roughly half of the die space, on their newest Skylake processor, to the GPU. Is there any utilization of that GPU, when there is a graphic card in a desktop computer? Are there ...
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3answers
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Mac OS X Server 10.6.6 “disables” CPU in VMware Fusion

I installed Mac OS X Server 10.6.0 in VMWare Fusion the other night and it worked perfectly, until I ran Software Update. I upgraded to 10.6.6 through the combo updater, and now when I start the VM it ...
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0answers
25 views

Game server hosted at home [closed]

I am looking to build my own game and webhosting server which will be run at my home. But I have a couple of questions so I can minimize mistakes and cost. What/How many servers will I be running? I ...
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1answer
19 views

Necessity for new cooling unit when moving from a Core 2 Duo to a Core 2 Quad

I own a desktop with the MSI P965 NEO-F motherboard installed. As you can see from the link, this motherboard can only accept Intel Core 2 Duo - generation processors, with the LGA775 socket. It is a ...
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1answer
29 views

My computer shuts down unexpectedly

My PC's specifications are as follows (it's a custom build) : Processor: AMD FX8350 @ stock (4Ghz) GPU: Gigabyte R7 260x 2GB 128bit Factory Overclocked @ 1625Mhz Memory and 1125Mhz Core ...
2
votes
1answer
35 views

How to remove a very stubborn heatsink from a CPU

While replacing a heatsink I accidentally pulled out the CPU with it. And after two days of trying various tips I found online it's still stuck on there. And of course I can't put it back into the ...
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2answers
28 views

New Lenovo, Intel i7, 8GB of RAM, but high CPU usage, loud fan

I just ordered a NEW Lenovo G40 laptop with 8GB of RAM DDR3, and Intel Core i7-5500U CPU @ 2.40 GHz 2.40 GHz. It is acting very strange. The fan is always running. MUCH louder than my previous ...
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1answer
20 views

How can I manually engage turbo on my processor when running Windows (Server 2008 R2) as a VM?

An application I run is heavily dependent upon raw processor speed as opposed to use of multiple cores. The processors in my VM host have a base of 2.9 and can turbo up to 3.3, but it appears Windows ...
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0answers
31 views

How to identify what service is causing high cpu usage for svchost.exe [duplicate]

About twice a day svchost.exe uses 50% CPU for more 20-40 minutes. If I kill the process it starts again. Is there a way to identify what service is causing this without disabling services one by one? ...
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1answer
27 views

Compare efficiency of excel formulas

Is there any way to directly compare for calculation efficiency side by side two different formulas for achieving the same goal in excel? Say I want to know which is more processor intensive (or if ...
2
votes
0answers
30 views

Can CPU performance be permanently be degraded by running at high temperatures?

My question is specifically if a processor can perform worse after extended periods of being too hot. I've had my laptop for four years and my cpu would regularly get to 85C+ watching videos or using ...
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0answers
53 views

How many physical sockets does Windows 10 support?

I would like to build a new computer (it's been 7 years since the last one). Does Windows 10 support more than one CPU socket?
0
votes
1answer
30 views

May RAM failure made no beep?

Several days ago, I added some more RAM to my PC (4x2 to 4x2+2x2) from my old PC. They worked before, i never had any problem with those modules. My motherboard supports up to 16gb on 1066MHZ, and ...
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5answers
12k views

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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1answer
97 views

Which CPUs support TSX, with the erratum fixed?

With the discovery of a bug in the implementation of TSX, all CPUs designed before that discovery have the extension disabled via microcode. Half a year later, I haven't found much about new ...
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0answers
38 views

Windows remove hidden cpuminer sgminer and gpuminer [duplicate]

I found that I have and undesired gpuminer and cpuminer installed on my Windows 7 pc that is consuming a lot of my CPU and overheating my GPU even when its not in use (no gpu consumer application ...
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votes
11answers
29k views

What's the difference between mobile and desktop processors?

I just read about the new Samsung Galaxy Note Edge having a 2.7GHz quad-core processor and 3GB of Ram. The laptop I bought last year by HP is 4GB of ram and 2.3GHz quad-core and my iMac is even ...
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0answers
37 views

Upgrade Lenovo YOGA 3 Pro Processor

I'm a total tech dumbass, so I need your help. I own a Lenovo YOGA 3 Pro, and I heard that it is possible to change the processor, am I right? I love everything about this computer, except how slow it ...
0
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2answers
1k views

Heatsink compatibility for the new Intel Skylake processors (LGA1151)

The new Intel Skylake processors have just released, but they don't come with a fan/heatsink. As a result, I have to purchase a third party heatsink, but it seems there are none yet listed on popular ...