Questions tagged [cpu]

The part of a computer responsible for performing computations, often referred to as a processor.

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Computer only supports up to 32gb ram even though my cpu goes to 64

My motherboard is 2 dimm. My cpu is intel i7 8770, which I checked supports up to 64 gb of ram. However, microcenter's website states my computer supports only up to 32gb. Why can't I have two 32gb ...
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Hyper-V % Total Run Time counter almost never exceeds 50%

the weekend before we saw that some virtual machines had low performance assuming a bottleneck in the cpu since migrating to an other host resolved the issue and the following performance counter was ...
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3.95GB ram usage out of 8gb available windows 7 64bit

EDIT: I did see most of the questions with similar problem, and as stated below I did try most of the things that were proposed as a solution, none of it worked tho, hence why I asked my question to ...
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How do I know if my RAM slot or CPU socket is gone bad

So I recently had some issues with my system booting. At first, It would end up in a boot loops. No beeps, nothing, just fans start spinning for a second, then go off for a second only to start ...
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CPU Spikes and Flickering when using 4 monitors

I am setting up a computer for my father-in-law and I'm running into a rather frustrating issue. In short, the computer works perfectly when using 3 monitors but whenever I attach a 4th monitor to the ...
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New motherboard, fails to boot

I have an Asrock 760GM-HDV motherboard with an AMD FX 8300, 2x4GB HyperX DDR3 RAM and a GTX 750ti 2GB. I had a problem with an older motherboard that broke, so it was exchanged. With the new ...
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1answer
219 views

How to make All Chrome Threads Run High CPU Priority?

Run normally, all Chrome processes have normal priority. The various threads represent various tabs, extensions, etc. But, then i launch chrome with high CPU priority. I'm using: cmd.exe /c start "...
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Is it possible for one CPU to outperform the same CPU at the same Clocks and voltage?

I recently had a power outage and my 6700k mark score dropped from 13,500 (98%) to 12,500 (92%) in CPU mark. Everything was completely clean, no background processes and multiple runs after restarts. ...
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31 views

CPU works louder when I am plugging my laptop in

I noticed that my CPU works louder when I am plugging my laptop in. I am using an HWMonitor Version 1.40.0 Driver version 148 to check my status of CPU. I am worried that my laptop can be damaged ...
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29 views

Will replacing 4 GB DDR3 ram (2GB+2GB) with 10 GB DDR3 ram (8GB+2GB) work with Intel i3 processor?

I have system with Intel i3 processor, 4 GB DDR3 ram (2GB+2GB). I am thinking to expand ram with buying 8GB DDR3 ram. Will Intel i3 processor work with configuration of 10 GB DDR3 ram (8GB+2GB)? What ...
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24 views

Server/Workstation for running 30 Virtual Machines simultaneously

Consider the following scenario: We have a student laboratory with 30 Ethernet enabled monitors. These each need to connect to Virtual Machines (VM), which run on a centralized server/workstation in ...
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1answer
129 views

10Gb PCI-E 4x LAN card on CPU lane, built in intel graphics

Despite searching since a few days, no one seems to have such scenario, world being filled now with high end GPU fans :-) I have an ASUS ROG Strix Z390-F, powered with an i9-9900K. Available MB PCIE ...
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59 views

CPU/PC Freezing (Temperature?)

I have a pc (Windows 10) that randomly freezes throughout the day (Every 20-40 minutes, both while and while not playing games). I have run memory checks and disk checks, and so I wanted to see if it ...
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26 views

Why are my CPU cores distributed over two NUMA nodes?

When I look at the output of lscpu I am used to seeing output similar to this: NUMA node0 CPU(s): 0-8,18-26 NUMA node1 CPU(s): 9-17,27-35 However, I am working on a server at the moment, and ...
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57 views

Recognise Computer Beeps After Launch

When my computer is booted into Windows10 and runs normally, my pc-speaker beeps: "two long times" from times to times. I checked in Hardware monitor and the CPU, GPU and HDD temperatures look fine, I ...
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54 views

MSAcpi_ThermalZoneTerperature not supported or alternatives no readings

I should note Get-WmiObject no longer exists in Powershell 6 and was replaced with Get-CimInstance and Get-CimClass for those not familiar with Powershell 6. I was trying to access the WMI object ...
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Is AES-NI processing speed influenced by CPU frequency?

I was encrypting a hard drive with VeraCrypt using AES, about 1 TB, which takes a few hours. My computer has an Intel i5 6500 with AES-NI (hardware accelerated AES). I noticed the CPU frequency went ...
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31 views

How should I understand hardware benchmarking and running Python scripts?

Most benchmarks refer to your code and not the hardware. Reading posts in the wild, commenters suggest extra RAM doesn't improve performance when you have a bottleneck to disk storage, and endorse SSD ...
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23 views

Ansys parallele job on Slurm Cluster stuck without error or exit message

I am working on a Slurm Cluster, executing Ansys (V18.2) jobs in a parallelized way. Large jobs (meaning large solver files) often stuck with out error message or exit message, the jobs keep running ...
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1answer
44 views

When building a new PC should I consider how powerful the CPU is comparing to the graphic card?

When building a gaming PC with i5 modern processor, does it matter if I get 1060 or 1070 graphics card? I've heard an opinion that i5 "matches" 1060 and buying 1070 would waste money since 1070 would ...
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489 views

Dell G5 5587 Intel Core i7 8750H throttling

I have a problem with my laptop Dell G5 5587 and its CPU Intel Core i7 8750H. I have bought this laptop in December last year and since then I've encountered a power throttling on CPU (more ...
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36 views

CPU Fan Error on Start of Desktop

Over the last couple of days, my PC when starting up from cold displays CPU Fan Error - Please F1 to go to Setup. Now, I will make it perfectly clear that my Desktop has not had a new Fan fitted ...
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computer 100% cpu and 90% memory

My computer is slow to compile apps in android studio and run emulator. I notice that it is using 100% cpu and 90% memory. my question here is, if I update my memory to 8 gb will I have some gain? or ...
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Does spread spectrum clocking degrade a CPU's performance and cause it to operate at higher temperatures?

Does spread spectrum clocking cause a CPU to operate at higher temperatures? If so, why? Spread spectrum clocking minutely varies a CPU's clock speed to spread out RFI to meet FCC and EU guidelines. ...
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326 views

How to enable intel virtualization technology if it is disabled in intel processor identification utiity?

I have installed a virtual machine on Oracle virtual box, but it is showing black screen error with cursor, in logs, there was an issue as: 00:00:06.668127 HM: HMR3Init: Attempting fall back to NEM: ...
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85 views

CPU fan not spinning after powering up computer. Is it normal?

Having the experience of several computer upgrades, I'm doing my first custom build computer attempt. When powering up the computer, the CPU fan spins during half a second only. Is this normal ...
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24 views

Win Service not utilising CPU

There's a CPU-bound Windows service (written in C#) running on a Win Server 2016 (8 core Xeon, 16 GB of RAM). Most of the time, the service does its thing (OCR for ducuments) and uses anywhere between ...
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43 views

How can I dump the output of this register , the MSR - IA32_VMX_PROCBASED_CTLS2 , to see whether unrestricted guest mode is supported/enabled?

How can I dump the output of this register , the MSR - IA32_VMX_PROCBASED_CTLS2 , to see whether unrestricted guest mode is supported/enabled? Context is curiosity. I'm aware that Docker in the ...
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2answers
44 views

Does CPU info change on fresh Windows install?

I developed a commercial software, with system to system licensing. For licensing purpose, I'm using various parameters like CPU info, hard disk info, BIOS, and other stuff. The problem is the ...
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196 views

How to find cpu usage as shown in taskmanager using performance monitor

I want to know the CPU usage of a process(given its PID) as shown in the task manager, using performance monitor, as I have to benchmark the performance of the process. This page shows that %Processor ...
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66 views

CPU, RAM or Motherboard? (PEBCAK!)

I have bought a bunch of used parts (like you do) and now of course they don't work well together, so I am diagnosing to find out which part(s) I need to swap. The mainboard is Supermicro X9DRi-LN4F+ ...
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Processor speed limited at 0.4 GHz

I have an 8th generation Core i5 processor, and it always worked great until these last two days where it doesn't go over 0.4 GHz. I've updated the chipset drivers, removed Intel thermal ...
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Why did formatting win 7 computers to windows 10 double their cpu-z bench score?

So I work at a company as an IT guy while I am doing my computer engineering degree. Doing hardware and software maintenance of computers is part of my job. I have had a weird experience with two of ...
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95 views

CPU settings stuck on AUTO in BIOS after BIOS update

I've just updated my BIO on my motherboard ( MSI z170a gaming m5) to the last version and, in my “OC Settings Menu,” CPU ratio and Ring ratio are stuck on AUTO. Before that update I was stable on my ...
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55 views

Core i7 performs very badly? [closed]

I would like to know why a core i7 HQ 6700 2.6GHz performs very badly compared to a core i5-4570 3.2GHz. This is the scenario, I'm running a very expensive method to populate a MSSQL DB, the i7 taks (...
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287 views

Reported CPU frequency is lower than what the hardware specs are

My Linux computer with custom kernel configuration seems slow. Even make menuconfig of Linux kernel is as slow as I can see redrawing of the menu. When I run cpupower frequency-info, frequency is ...
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19 views

AMD 5800K + 1050 Ti - Run Dual Graphics

For a long time I've been using an extra monitor on my laptop. Today I thought I'd connect a second monitor to my desktop, so I tried. It didn't work. I checked the Bios, but the option for enabling ...
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41 views

CPU power throttling when unplugged on Windows 10 Only

I have an MSI GV62 8RE-061 laptop and am having an issue with power throttling when unplugged... I have searched the internet for hours and am still unable to resolve my issue. I have enabled "High ...
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1answer
297 views

Does virtualbox require a CPU to support VT-d in order to host 64bit guest OSs?

Does virtualbox require a CPU to support VT-d in order to host 64bit guest OSs? For example ark.intel.com says this for a particular processor I understand that virtualbox requires a CPU ...
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1answer
112 views

LGA1151 physical dimensions?

I'm designing my own PC case and I need to find the physical dimensions (height specifically) of the LGA1151 socket with a CPU installed as I'm dealing with some low clearance heatsinks. I was able ...
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Added CPUs with VBoxManage don't show up in HTOP

Following this question I changed the numbers of CPUs on my guest. I used the following commands # VM is shutdown VBoxManage modifyvm "Ubuntu 12" --cpus 2 VBoxHeadless --startvm "Ubuntu 12" ...
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Dell PowerEdge R730xd Processor Upgrade

I have been tasked with updating a Dell PowerEdge R730xd server to a two processor unit, it currently has one processor (Intel Xeon CPU E5-2640) and I will be adding two Intel Xeon E5-2630 V4. The ...
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38 views

Short dips in Max Core Frequency when testing with Intel Extreme Tuning Utility

I have an Intel i7-3770 (non-k) CPU and I'm trying to figure out why it cannot consistently achieve a Max Core Frequency of 3.69ghz on all cores even though temperatures are stable and within a safe ...
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Custom PC not booting and intermittently turning off / on

I'm building a custom computer with the following specifications: Storage: Crucial P1 3D NANA NVMe PCIe M.2 SSD Memory: G.SKILL Trident Z RGB Series 288-Pin SDRAM DDR4-3000Mhz GPU: MSI GTX 1070 TI ...
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2answers
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Check total usage of physical memory and CPU for a program on Linux

I want to compare how much physical memory and CPU power google chrome and firefox use. So I tried to do this with htop which I usually use to keep track of my system resources and found out that I'm ...
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3 CPU on 4 socket mobo - any gotchas? [closed]

got a 2U Supermicro server with 4 sockets, however only 3 are populated with Xeon E7-4830v4. Various persons advised to either remove 1 or even better add another CPU so I run an even umber of CPUs. ...
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438 views

CPU fan stops when Windows starts

After I cleaned up its wings (I do it every several times a year), my (Fujitsu Lifebook ah530-10) laptop's Cpu fan stopped spinning when windows 10 start. It does spin while in BIOS pages and also ...
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dose tune of the kernel parameters can help to decrease the queue of CPU ( low cpu load average )

We have a machine with 32 CPU. For now the results from uptime ( load average ) for 1 min - 23 for 5 min - 21 for 15 min - 20 We notice when the values are small, like ~3-8, the application ...
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CPU LOAD Average + when to set when threshold

We have a cluster with physical machines HW Each machine contains 32 CPU # lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): ...
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298 views

Possible to replace CPU fans?

I have an Intel CPU that is about 5 years old and the integrated fan is whining. Is it possible to replace just the fan, or will that be problematic? The numbers on the fan are: E21984 DTCAAU01 ...