Questions tagged [cpu]

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

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Recommended GFX Card for my motherboard? [on hold]

This is my mother board: https://www.gigabyte.com/Motherboard/GA-H61M-DS2-rev-50#ov I'm planning to buy an i7 processor and a GFX card... what would be a good NVIDIA GFX card for this motherboard ...
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Do I need both the 8 pin and 4 pin cpu power plug for my MSI B450 Pro Carbon?

I have bought a new mainboard, an MSI B450 Gaming Pro Carbon, and to my surprise, it features 12 pins for the cpu power connection. My power supply, a Pure Power 10 BN274 600 Watt, only features 2 x ...
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Does disabled hyperthreading double the performance on single thread?

I have processor with 4 cores (Intel Core I5-8250U @ 1.6 GHz)* and hyperthreading makes it 8 logical processors. I use a program that does some heavy calculation* in a single thread. When I look up ...
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Keras using both CPU and GPU

I am a pretty new user of Keras. Recently I have started using it to train quite simple neural networks. I installed Keras, tensorflow-GPU, CUDA and CUDNN. Here is the code I am running : num_epochs=...
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Second Xeon CPU fails in Intel S5520UR server motherboard

I'm building my first PC and chose cheap old server bits, an Intel S5520UR server motherboard TPS manual here and a pair of (matched) Xeon X5570s. One CPU works fine, with no errors on boot. However, ...
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1answer
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Find full FPO and ATPO Number for Intel CPU from Software

My CPU Is damaged so I need to start the RMA Process, but my computer is running. I don't want to disassemble the CPU Fan just to read the visible numbers from the CPU and then reassemble. Is there a ...
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1answer
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Will My Motherboard and CPU Support Newer RAM?

So I'm looking at getting this (https://www.newegg.com/corsair-16gb-288-pin-ddr4-sdram/p/N82E16820236426?Item=N82E16820236426) RAM and I wanna know beforehand if it will be compatible with my CPU and ...
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Can I put a Core i7-3770 in a DQ67SW motherboard?

I have an Intel DQ67SW motherboard with a Core i5-2500 CPU and I want to upgrade the CPU to Core i7-3770. I checked CPU support list on Intel's website it is not given there, but on Game Debate it is ...
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Can I get a CPU cooler to run without using a motherboard [on hold]

I would like to use a CPU cooler for heat removal of a small laser welded part. Can I get a CPU cooler to run without using a motherboard?
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What are the options for cooling a metal-bodied laptop?

The CPU temperature of my 2014 MBP for years has routinely been in the high 90s C. What are the ways to cool it? (I'm trying to avoid throttling, which causes programs I'm using to slow down.) Ones I'...
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Windows 10 PC with an i5-7600 doesn't run at 3GHz anymore, but at around 1.60GHz, even while gaming/video editing

This is a serious problem, because all the games/software I use perform really badly now. I've had this issue since yesterday and I've never encountered anything like this before. I know that the CPU ...
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Are there devices that implement the ARM (ARMv8) SHA3 (Keccak) instructions? [on hold]

Keccak and related functions are cryptographic mathematical functions used for hashing, encryption, etc. They won the SHA3 NIST secure hash function competition. Since about 2017, ARMv8 has a 64-bit ...
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1answer
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Finding a platform for offloading by FPGA in Linux [on hold]

I have to design a system with an application running in CPU. A part of the application with heavy computation workload tend to be offloaded in Xilinx FPGA (Field Programmable Gate Array). PCIe is ...
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Upgrade Dell Inspiron 3668 from i5-7400 to a better cpu

I want to customize my Dell 3668.i don't have the money to start a whole new comp. I have the Intel i5-7400 with 16gb ram 1 tb ssd with a GTX 730. This is for gaming, and media. Looking at the Ryzen 5....
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How to set CPU frequency on OSX?

My colleagues have been complaining about my computer making too much noise, and they're constantly asking me to do something about it. On my Linux, I used to set a lower CPU frequency to avoid ...
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why i7-860 is two times slower than E3-1220?

I have financical trading software. It decodes fast/fix messages. I'm running same binaries on two different machines on very similar set of data. Software receive "messages" and decodes them. The ...
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Big performance drop on own program [migrated]

I am not sure that this right site Stack Exchange. Tell me which one if it's wrong. I have my own program (C#, WinForms) and two computers with CPUs: Intel Core i5-2320, 3200 MHz (Windows 7) Intel ...
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How to limit the maximum CPU resources for a specific process?

I've googled and found this blog but when I try to repeat the steps, I see that my context menu doesn't have the options to limit a process. I restarted Task Manager as admin but it didn't make any ...
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CPU usage decrease dramatically after a while time running my code [migrated]

I am running a python code which includes a lot of loops, i'm using python3 and Ubuntu 16 with an Intel quad core processor. It starts running fast, when I look to CPU usage the process is using 100% ...
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explorer.exe eats up 100%of cpu when playing a game, but no lagging in game

my friend is facing a weird problem, and he gave it to me to fix it. his laptop is a hp 2000 notebook with core i3 (not sure need to confirm). The problem was that when he used to run 'hitman: ...
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PC won't 1st time Post

I've recently built a budget PC for my cousin and the parts are as follows: CPU: Ryzen 5 1600 MB: Asus prime b350 plus CPU cooler: cooler master evo 212 RAM: Corsair vengeance 2666 mhz (2x 4gb) GPU: ...
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1answer
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Do processes stay in memory until completion?

I'm solving a problem in which I'm given several processes, each with it's own required CPU time for completion, memory requirements and time of entry to the ready queue. The algorithm the scheduler ...
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Why does my program scale so poorly on a 32 cores AMD CPU? [closed]

I want to concurrently run independent instances of a program on our 32 core machine (AMD Threadripper 2990wx, 128GB DDR4 RAM, Ubuntu 18.04). The performance gains are almost null after about 12 ...
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Performance issue in a system with better configuration

I am running one line code on my laptop which is taking around 45 minutes whereas same line of code on same dataset is taking less than 2 minutes on another laptop. Below are the configuration of my ...
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Calculate the throughput of a processor in bits per second

Let's say for example you have an 64-bit 3.2 GHz processor with 8 MB of Cache. What is the theoretical and practical throughput as it would write to RAM (assuming there are no RAM bottlenecks)? Thank ...
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solid white debug light for CPU on new computer?

I recently put together my first computer, but when I tried to turn it on the Ez-Debug led turned on solid white next to CPU. The CPU, GPU and case fans are all working, as are some leds. I looked ...
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Does Windows have a “this core may ONLY run this program and should otherwise be idle” setting?

Someone in The Bridge, the main chatroom for Arqade, our gaming site, asked whether they can fully dedicate a CPU core to a specific program, to the point that if that program isn't active, the core ...
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Stop Dell from throttling CPU with power adapter

My Dell laptop is experiencing the old problem of the power adapter failing to be recognized by the computer. I know for a fact it is just a break in the data cable in the line, because if I position ...
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Get cpuid for a particular process thread using ps

How do I get the ps command to output just the cpuid if I know the pid and tid? I can use ps -e -mo pid,tid,psr | grep Thread_Id to display the current cpu the thread is running on, but is there a ...
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What are suitable values for gcc parameter l2-cache-size considering hardware L2 cache size?

During compilation optimization this question about best guesses for gnu gcc compiler parameter --param l2-cache-size=? (default is number for kB block size) came up. What are recommendable values for ...
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How to display CPU and GPU fan speed percentage (instead of RPM) during gaming?

I use MSI Afterburner, RivaTuner and HWiNFO to (on screen) display CPU & GPU temperatures during gaming, but these softwares are not able to display the fan speeds in percentage. They only show ...
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PC turning on and off repeatedly

Yesterday my pc froze had to turn it off by holding the power button. But when i turn it back on its just on for 1-2 sec then off repeatedly then i tried it again after a few mins turned off once then ...
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1answer
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How can Memory device can update its data?

We know a CPU connect with Memory with Address Bus, Control Bus, Data Bus. When CPU want to write 11110000 into Memory 0x0001, it will first, Address Bus locate to Memory address. then, Send ...
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1answer
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PC suddenly shutting down. Not turning on. Red CPU light on mobo

I've had this problem with my pc for some time now wherein I am able to use it for atmost 8 hrs but wont eventually turn on after letting it rest after 12 hrs or so. I also noticed the red cpu light ...
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1answer
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Confusion with terms -> FSB, QPI, HT, DMI, UMI

I'm a bit confused about some terms used by CPU manufacturers. I know that FSB is a bus that connect the CPU to the Northbridge and that QPI (Intel) and HT (AMD) replaced this technology. The new ...
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Must a CPU have a GPU if the motherboard provides a display port (when there isn't any separate video card)?

There is such a configuration: MSI A320M PRO-M2 V2 + AMD Ryzen 5 1400 BOX and there isn't any separate video card. When the PC is switched on, the monitor shows nothing. The MSI tech support said: ...
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How a program is executed on a CPU with 3 level of caches? [closed]

We have a system optimization problem that requires a clear workflow of the execution of a CPU. How does a modern CPU (e.g. Intel Xeon) with multiple levels of caches execute a program originally ...
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LSCPU command: what is better in term of concurrency execution

I have 2 Linux machines. I use lscpu command to check its CPU information. Here is the first machine information: CPU(s): 8 On-line CPU(s) list: 0-7 Thread(s) per core: 2 Core(s) ...
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4answers
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Upgraded to a GTX 1080 FTW, now experiencing intermittent stuttering

I upgraded my GTX 1050 ti to a GTX 1080 FTW in a prebuilt Dell XPS 8900. When upgrading the GPU, I replaced my PSU with a 750 watt PSU. I started getting intermittent stutters when gaming after these ...
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1answer
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Is my CPU causing bottleneck for the whole system?

I have this old laptop which I have been using for past 2 years. It works well except sometimes when I use programs like Photoshop and Eclipse, it takes a long time load. Also, there are some minor ...
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How to detect a bottleneck in the system?

I run a Mathematica code which takes one hour to be finished. During this one hour the CPU never reaches the 100%. It reaches to 50% or around that. The CPU is Xeon e5-1650. Could it be that there is ...
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Will my CPU bottleneck this GPU?

I've been meaning to upgrade my computer for quite a long time but money's a bit short and I can't do it all at once, I want to upgrade my GPU first because it's not up to par with most newer games ...
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CPU Bottlenecking GTX 560?

I recently purchased a GTX 560 graphics card, but I feel that it's not performing like it should be based on some tests I've run. I'm wondering if the CPU is the bottleneck; I'm running an AMD Phenom ...
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Would my virus scanner be able to scan multiple files concurrently with dual CPU instead of multi-core?

Anti-virus: Microsoft Security Essentials OS : Windows 7 x64 Silly question perhaps, but somehow I was under the impression that multiple cores would mean the anti-virus scanner would be able ...
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1answer
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CPU does not support AVX instruction set

I just bought myself the Logitech Brio. in order to put the background changing options to use I tried to download ChromaCam’s software. When I tried to install it, I get a message that my CPU does ...
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Can only boot with 2/4 cores disabled after BIOS update

I have an MSI Z170A SLI Plus motherboard and an Intel Core i5-6600K CPU. I decided to upgrade to BIOS from 1.6 to 7998v1E. After this, all version of Linux I tried to boot failed with "Processor ...
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How to check a CPU's version using CPU-Z?

When I use the CPU-Z software to check the CPU information: there it has a param name Family, what's it mean? is it mean the version? Such as the E3-1200 V6, I want to know the version 6 is which ...
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Why do modern multi-core operating systems still throttle scroll speed?

Someone asked Why did moving the mouse cursor cause Windows 95 to run more quickly? over on Retrocomputing. Raffzahn's answer mentions that it's also possible to observe the effect of things running ...
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Meter for Intel Turbo frequency

Hi their I have a laptop with Core i7 2630QM (Base freq 2GHz TurboBoost2 upto 2.9 GHz). I was always curious about to view the dynamic overclocking that occurs in i-series when it is subjected to ...
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“System” process using up cpu [duplicate]

I have a problem with battery life on my laptop, so I decided to investigate. I looked in the task manager to check whether a process was using too much CPU and low and behold, I stumbled upon a ...