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

learn more… | top users | synonyms (2)

1
vote
1answer
16 views

Why does lower latency of audio devices translate to higher CPU consumption?

I'm wondering what the relation is between operating an audio device at a lower latency and it using more CPU power. Can you explain it to me?
0
votes
0answers
12 views

Reliable starting voltage for typical case and CPU cooling fans?

I'm configuring the BIOS for an embedded system centered around a Mini-ATX motherboard. I need to choose fan configuration values, and I'm wondering: what is the minimum voltage that would reliably ...
0
votes
0answers
29 views

CPU overheating [on hold]

I was gone for a week or so when I got home to a PC that suddenly overheated and shutdown. My first theory was that the pump for my Corsair Hydro H60 was broken. I therefore tried to replace the CPU ...
-1
votes
0answers
22 views

Which Intel Processor is best from following models? [on hold]

Intel i5 4th Generation 4440 4590 4590S 4460 4460S I have selected some few latest processors i need help in choosing one of best from this. Please help. This is very helpful for choosing ...
0
votes
1answer
26 views

Can I put an AMD APU and an Nvidia GPU in the same computer

As the title says, can I put an AMD APU Procesor and an Nvidia GPU in the same PC? These kinda bugs me because the APU I’ll be buying has the power of an AMD R9 240 I think. And I know that Nvidia ...
0
votes
1answer
36 views

Can't seem to use 2CPU on Oracle VM VirtualBox 5.0.2

I have an Intel® Celeron® Processor N2815. I've confirmed Virtualization and VT-x are enabled. I can't choose more than one CPU when configuring a Linux machine on VirtualBox; the scroller is grayed ...
0
votes
2answers
19 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 ...
-1
votes
0answers
17 views

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

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
votes
0answers
19 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 ...
0
votes
0answers
30 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 ...
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 ...
0
votes
1answer
38 views

Computer randomly freezes: screen turns black but fans still spin [on hold]

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 ...
0
votes
0answers
27 views

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

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 ...
-2
votes
1answer
28 views

Doubts regarding multithreading and hyperthreading [closed]

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 ...
0
votes
0answers
12 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 ...
7
votes
1answer
536 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 ...
2
votes
1answer
19 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 ...
0
votes
2answers
39 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.
2
votes
2answers
72 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 ...
1
vote
1answer
21 views

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

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 ...
-1
votes
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 ...
0
votes
0answers
41 views

Slow response time windows 10 lenovo [closed]

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
1answer
23 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 ...
0
votes
0answers
40 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 ...
-1
votes
0answers
37 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 ...
0
votes
0answers
18 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 ...
0
votes
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 ...
0
votes
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 ...
-1
votes
1answer
30 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
36 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 ...
1
vote
1answer
22 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 ...
0
votes
2answers
31 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 ...
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 ...
1
vote
0answers
58 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
31 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 ...
1
vote
1answer
29 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 ...
1
vote
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? ...
0
votes
2answers
82 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' ...
1
vote
1answer
21 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 ...
0
votes
0answers
43 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
votes
2answers
2k 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 ...
0
votes
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 ...
-1
votes
1answer
27 views

What's the right choice to run a cooler Cpu (quiter laptop)?

Assuming that on the same laptop with an intel "i-series" processor I could have exactly the same workload, in order to achieve the lowest cpu temperatures it would be better: Higher CPU clock ...
-1
votes
0answers
45 views

Undervolting/underclocking my gaming system?

Let me say first that I get off on efficiency and I'm not a hardcore gamer. Also I'm talking about an entry gaming rig. So I was gonna get an AMD A10 APU because the efficiency appealed to me. 95W ...
0
votes
2answers
52 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 ...
0
votes
1answer
439 views

Windows Update doesn't work and consumes 100% of CPU

I have a fresh installed computer with Windows 7, 64-bit, Service Pack 1. After a few minutes after startup, svchost.exe is consuming 100% of one cpu core. I know there are many threads which are ...
0
votes
1answer
143 views

How are PCI lanes used for graphics and peripherals (eg PCI-e SSD) respectively?

The Skylake architecture supports 16 PCI-E lanes from the CPU and 20 from the PCH. Are the 20 from the Z170 chipset separate from the 16 that allow the CPU to communicate with the GPU(s)? Or is the ...
0
votes
0answers
22 views

CPU “core id” numbering explanation

Question is - why core id numbering is 0 1 9 10, but not 0 1 2 3? What is a principle of assigning specific number to core id? I have 2x L5630 and numbering is 0 1 9 10. On my previous CPUs (E5520) ...
-1
votes
0answers
21 views

For DDR RAM, does the DDR speed matter or the core speed?

I understand that between (SDR) SDRAM and DDR SDRAM, if DDR SDRAM is operating at twice the speed of SDR SDRAM, then the actual digital clock signal over which the data is being transferred has the ...
1
vote
0answers
23 views

cpu cooler thermal inertia

I got a Haswell I7-4790 ( 3.6Ghz ) with a noctua nh-d15 cooler ( only one fan installed ) and I get thermal inertia. Example: Idle cpu stable at 36 degrees. Full load ( rendering something ) : a ...