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

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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 ...
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1answer
25 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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9 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 ...
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1answer
465 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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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
53 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 ...
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1answer
19 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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24 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. ...
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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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32 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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27 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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0answers
16 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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0answers
41 views

Dual CPU for game server [on hold]

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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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
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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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 ...
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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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1answer
19 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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2answers
27 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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0answers
29 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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48 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?
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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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1answer
26 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 ...
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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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2answers
72 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' ...
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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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0answers
36 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 ...
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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 ...
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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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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 ...
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0answers
43 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 ...
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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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1answer
348 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 ...
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1answer
134 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 ...
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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) ...
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20 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 ...
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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 ...
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7 views

DMA/CPU/BIND/NFS and polling

Which of the following is not true? (a) CPU enables interrupts while the DMA is transmitting information. (b) BIND binds SOCKET to an IP address. (c) NFS executes the same request again even though ...
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280 views

Microsoft Edge - High CPU Usage

Microsoft Edge has abnormally high CPU Usage on my computer, just upgraded to Windows 10. When I open cnn.com in it, it consumes about 50% of my CPU even after the page loads, for a SINGLE tab. When I ...
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0answers
77 views

Windows 100% CPU with no apparent reason

Started this morning to have 100% CPU on Windows 8.1, but without any process that causes it (at least in task manager) Tried several fixes, like disabling the maintenance services, the anti-malware ...
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0answers
32 views

Disable the overheat guard of the cpu (Sensor defect)

So I think that my CPU sensor is defect, let me explain why. The pc is shutting down instantly, even in idle. Some programs like speedfan show that my cpu has more than 80°C . It has a really big ...
0
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1answer
23 views

Is it bad/dangerous/damaging to set laptop fan speed to max all the time? [duplicate]

I use HWiNFO to set my fan speed to maximum (the maximum provided in HWiNFO, there may be higher speeds) all the time I am using my laptop to cool the processor and GPU while video editing and playing ...
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0answers
53 views

What causes “The speed of processor 0 in group 0 is being limited by system firmware” in the event log?

My Windows 10 event log continually states. In fact, I think my system is slowing down due to this fact. The speed of processor 0 in group 0 is being limited by system firmware. The processor ...
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0answers
36 views

What processors are used in HDD controllers

Today I took apart a Seagate hard drive. Its main controller is the LSI B6650B, but there is virtually no information available on it. I guess it is custom made for Seagate, but probably based on a ...
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2answers
29 views

IPv6 CPU utilization in Ubuntu

How can I find out how much CPU is used on my Ubuntu to deal with abrupt IPv6 traffic? I use top command but I can not find out which process ID is dealing with the 11MBps IPv6 inbound into my NIC. ...
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2answers
19 views

Macs CPU temperature increases massively when charger is removed

So I was trying to kill a Java process the other day. I opened htop and looked for Java. This was the first time I really used htop so I figured I would set it up in a way I would like. I added the ...
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4answers
154 views

Windows 10 and new hardware

I recently upgraded my computer to Windows 10 from Windows 7. I am now thinking about installing a new motherboard and processor. Will this require me to purchase a new version of Windows, or will I ...