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

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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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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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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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32 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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2answers
111 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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3answers
5k views

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

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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185 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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38 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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32 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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23 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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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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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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57 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 ...
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1answer
94 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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1answer
1k 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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2answers
48 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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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
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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 ...
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3answers
626 views

Does a higher CPU clock speed compensate for lower cache?

The Athlon X4 860k has a 3.7 GHz clock speed, but the Pentium G3258 can be overclocked to 4.2 GHz. Does the higher clock speed of the G3258 compensate for the fact that it has 1MB less cache?
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1answer
114 views

Lenovo laptop with Intel CPU remains at lowest clock

I have an Lenovo T440p with an Intel Core i5 4300M CPU. 8GB RAM, SSD running with Windows 7 (preinstalled). The only thing I did not like about this laptop was the screen, which I replaced (the whole ...
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369 views

Where can I find the specification about the upcoming i3 Skylake processors?

I saw that i3-6100, i3-6200, i3-6300, i3-6320 ... is coming in September, but no more details about it. Where can I find more information (frequency, cache, hyperthreading, ...)?
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72 views

RAM Limitation on 64 bit arch

I see that there are a lot of places mentioning 16 EB RAM limitation... However, isn't a modern register 64 bit? and if so, 2^64 should point to the number of registers possible and since they are ...
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1answer
134 views

What is CPU utilization and how is it calculated, how does OS scheduling work?

I studied x86_64 assembly language, somewhere in my studies I learned that the CPU cannot stop doing stuff, it must constantly run/execute something. Question 1) I am wondering then, how come there ...
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409 views

My Intel T9300 stuck at 0,75 GHz?

The CPU speed shown in my task manager confuses me. It shows permanently 0,75 GHz. Is it normal (I mean, when I just browse in the Web, it probably doesn't need more...) or might be there any problem? ...
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Can ASRock N68C-GS4FX Motherboard w/ AMD Phenom II X4 940 run DDR3 RAM?

I have recently upgraded my Motherboard and am now looking at RAM. I have an ASRock N68C-GS4FX Motherboard and a AMD Phenom II X4 940 Processor. I have used the CrucialPC system scan application, and ...
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Running G.Skill Ripjaws DDR4 RAM at 3000mhz with a i7-5820K

I have been struggling for the last few days with my new PC set-up consisting of a: MSI X99S Gaming 7 Mainboard i7-5820K CPU G.Skill DDR4 3000mhz (F4-3000C15Q-16GRR) The issue is that once I enable ...
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46 views

Did I get a dead CPU?

I have a shuttle SH67H3 that has had a pentium G620 as the CPU since I built it. I ordered an i3-3220T as an upgrade. I swap the CPUs, connect everything, hit power and...nothing. The fan spins but ...
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75 views

I need a list about the currently available processors [closed]

Basically i need a list of processors (Intel is enough), include desktop, mobile, server, newest ones older ones etc. The best will be an importable format (Access, mysql). Can it be found anywhere? ...
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1answer
73 views

Huge performance differences between i5 i7 SSD/non SSD…which makes more of a difference?

I have 2 pcs both running Windows 8.1 and each with 8b of ram. The differences are one has a solid state drive the other one is 7200rpm and also an i7 vs i5 Running the same application one query ...
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48 views

Desktop overheating room, is it CPU, GPU, or PSU?

If my door is shut, my computer turns my room into an oven, it's that bad. I'm hoping replacing a part will resolve the issue. Here's some specs: CPU: AMD FX 8320 Eight core GPU: AMD Radeon 6670 PSU: ...
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68 views

Does the GHZ of A CPU Make A Huge Difference [duplicate]

I am currently running an i3-2330M @ 2.2GHZ -- I was looking at 5th Gen Intel® Core™ i3-5010U processor. I understand obviously that the new one would be a 5th Gen and it's a 5010U which is obviously ...
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132 views

CPU temperature is too high

I have a problem with one of my old PC's. It's an Intel Celeron @2.4GHz on socket 478. When i enter the BIOS and go to Hardware Monitor, the temperature raises gradually to 65°C and sits like ...
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205 views

Does CPU matters in disk read/write speed

I thinking to buy my old Mac an SSD, but after asking around to some friends, and looking to different disks, some of my friends said that the SSD's read/write speed won't matter because my CPU won't ...
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184 views

How to Turbo Boost permanently?

Dell OptiPlex 990 with i7-2600. Turbo Boost is enabled and it's working correctly. Speedstep and C1E is disabled. No BIOS options, or hacked BIOS to overclock myself. Is there a way to keep the ...
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2answers
103 views

Brand new rig experiencing terrible fps lag in games. Tried everything I can think of to fix it

I have an entirely new computer SPECS HERE (except for the ram which is ~5 years old) that has been running great. Today however, every game I play has been experiencing lag that makes them nearly ...
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214 views

Why does my CPU have random 100% usage peaks?

I need your help. It's been since a couple of weeks by now that my cpu reaches peaks of 100% usage on tasks that, before, never needed this much work. And it is pretty annoying, seeing that when the ...
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154 views

No Thermal paste on box CPU?

I just bought a boxed i5. There was no thermal paste included. I understand that it is normally pre-applied to the stock fan in box sets. I didn’t notice that before mounting. However there was an ...
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213 views

Is there a way to run apps/games only on discrete card of full amd laptop?

Subj. Dual graphics disabled. Windows power mode - high performance. Same in AMD Vision Engine CC's PowerPlay. Drivers was installed in "recommended" sequence - chipset and all other - first, ...
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Why has my CPU suddenly started running hot?

I have an i7 920, zalman cnps9900 heatsink and fan, arctic silver thermal paste and gigabyte mb with no overclocking at the moment. I have three internal fans one push and 2 pull. but my cpu has ...
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125 views

PC works fine on Windows safe mode, but I can't format using Windows installation CD

I have a laptop that restarts when booting Windows (not showing any errors, or any blue screens), when tested in safe mode it starts without any problems. I thought then that the windows installation ...
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404 views

Why does my CPU only support 32GB RAM when it has 39 address bits?

The following is the output of cat /proc/cpuinfo user@localhost:~$ cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 60 model name : Intel(R) Core(TM) ...
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Will SSD work better than HDD with Intel i3 m330 [duplicate]

I have Intel i3 M330 CPU and a HDD in my laptop (it's 5 years old). I was thinking about replacing the HDD drive with SSD Sandisk (read/write 500mb/s). Will I see a considerable improvement in the ...
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1answer
122 views

Does the Windows registry hold details of the processor's capabilities?

I have a strange situation which I hope someone can shed light on. I have an old HP laptop NC6320 with a triple boot running Windows XP, 7 and Linux Mint. It's an Intel Core 2 T5600 which supports ...
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131 views

PC Case Side loudly vibrating when on high fan RPM

My CPU is an AMD FX-6300 and it is cooled by it's stock cooler. The problem with the stock is that it tends to spin at 6600+ RPM when on heavy load. So every time I start GTA V for example I start ...
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53 views

Computer shutting down randomly - possibly overheating?

My computer will randomly shut down, usually it's while playing a game or doing a high processing task, and the last thing I will hear is my loud fan. But sometimes the fan won't be too loud and I'll ...
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1answer
50 views

What frequency does impedance matching become important [closed]

I am in the process of making a motherboard for a Pentium III processor, with a bus speed of 66/100 MHZ and core clock of 800MHZ. What I need to know is at what frequency in general do I have to start ...
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66 views

Is it ok to use a Haswell CPU with old power supply?

I will buy a i7 4790k, and I want to know if I might encountered any problem using it with a old 250W power supply. I'm planing to get a new power supply also, but only when a I got my video card. ...
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1answer
687 views

Temperatures for AMD A10 6800K APU? [duplicate]

I have AMD A10 6800K, which is APU(is a CPU with GPU included) and I wonder what are the safe temps for the WHOLE package, I don't if I'm mistaking or not. I know the ideal temperature for AMD ...
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267 views

AMD Kaveri + dedicated graphics card

I have red an article about an AMD technology used in A series Kaveri processors called HSA In few words they make processors with GPU cores, and HSA is basically a technology that makes the GPU ...
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Suspend process according to CPU temperature in Windows 8

Is there is a software or a way to suspend a process according to the CPU temperature? Sometimes when I render video the CPU temperature increases a lot, so I have to suspend the process in resource ...