Windows 8 and 8.1 Forums


CPU usage won't go over 50%

  1. #1


    Posts : 3
    Windows 8.1

    CPU usage won't go over 50%


    I have Intel I7-3930K running at 3.9GHz and I've noticed that my CPU utilization never goes over 50%, even when rendering, or playing cpu demanding games like BF4. It's also causing huge hiccups(CPU spikes) every 2 minutes or so, while playing games. I've installed all windows updates and latest drivers, disabled all unnecessary programs and tasks. Does anyone know what is causing this?

      My System SpecsSystem Spec

  2. #2


    Orbiting the Moon
    Posts : 2,975
    Windows 10 x64


    Hi there,

    Welcome to the forums.

    Some program is limiting the CPU, most likely through software.

    First thing to check is the power options.

    Click image for larger version

    Make sure the maximum processor state for the active power scheme says 100%.

    For instance i've set mine to 80% and it never goes over that line in Task Manager, even when rendering.

    Good luck.
      My System SpecsSystem Spec

  3. #3


    Posts : 376
    W8.1, W7


    Temp throttling ruled out ?
      My System SpecsSystem Spec

  4. #4


    Posts : 3
    Windows 8.1


    Quote Originally Posted by Hopachi View Post
    Hi there,

    Welcome to the forums.

    Some program is limiting the CPU, most likely through software.

    First thing to check is the power options.

    Click image for larger version

    Make sure the maximum processor state for the active power scheme says 100%.

    For instance i've set mine to 80% and it never goes over that line in Task Manager, even when rendering.

    Good luck.

    It's on 100%, temps never go above 50, I've tried prime95 and stress tested cpu for about an hour, everything went fine, and usage went to 100%, but in game it' won't go over 50, I don't get it
      My System SpecsSystem Spec

  5. #5


    If prime95 will use 100% CPU usage that there is no limits on CPU usage. But the I7-3930K CPU has 6 cores and that is more than most applications are capable of using efficiently. Having more cores does not mean that all will be fully utilized, even with demanding games and other applications.
      My System SpecsSystem Spec

  6. #6


    Posts : 3
    Windows 8.1


    Quote Originally Posted by LMiller7 View Post
    If prime95 will use 100% CPU usage that there is no limits on CPU usage. But the I7-3930K CPU has 6 cores and that is more than most applications are capable of using efficiently. Having more cores does not mean that all will be fully utilized, even with demanding games and other applications.

    But then why I am I having cpu hiccups, I didn't have that problem on windows 7 and cpu usage went above 90%
      My System SpecsSystem Spec

  7. #7


    Orbiting the Moon
    Posts : 2,975
    Windows 10 x64


    Quote Originally Posted by ssssilent View Post
    It's on 100%, temps never go above 50, I've tried prime95 and stress tested cpu for about an hour, everything went fine, and usage went to 100%, but in game it' won't go over 50, I don't get it
    Game you say... that is another thing!
    That means game isn't able to utlilise all the cores OR not all cores are needed by that particular game.
      My System SpecsSystem Spec

  8. #8


    Wynnum Australia
    Posts : 466
    Windows-10-Pro-Build-11099.rs1-x64


    Maybe your GPU is bottlenecking your CPU ?

    Slow / fragmented HDD ?

    Tried different GPU-Drivers ?

    Bad I-Net-Connection ?

    Which Power-Profile ?

    Core-Parking disabled ?

    GPU-Driver Settings ?

    Windows-8.1 doesn't effect BF4 in a negative way, but you get even a smoother experience with Windows-8.1 .

    I play BF4 usually with my 3770k @4200MHz and had never such issues and I paired them with the following GPU's:

    - 1x Gigabyte GTX670-OC-2GB
    - 2x Gigabyte GTX680-SOC-2GB
    - 2x Gigabyte GTX780-Ti-GHz-Edition-3GB

    With all Quality-Settings maxed-out I get atm. 140-200fps @1920x1080 on a 64-Player-Server.

      My System SpecsSystem Spec

CPU usage won't go over 50%
Related Threads
Hi guys, hope you can help me please. I'm not too computer savvy so sorry if I'm missing something important or I say something dumb. I'm really frustrated and I'm trying my best to learn and solve this problem. So I bought this Vaio with Core i5-3210M, 4Gb Ram, Windows 8 64 bit. I had really high...
RAM usage never more than 80%? in Performance & Maintenance
Okay, so I'm playing watch dogs which needs 6GB ram on a 4GB ram PC. I run compact tray meter and one thing I notice is that the ram usage never goes more than 80%. In fact, whenever it loads stuff from the HDD ( I could see HDD usage 100% and stuttering in my game), RAM usage decrease to...
What is wrong with my Disc usage? 100% usage. in Performance & Maintenance
I am currently running Windows 8 (not 8.1), and have been experiencing difficulty with my disc usage. Programs (especially upon startup) have been unresponsive or painfully slow lately, and upon checking the Task Manager, the Disc Usage will be at 100% or close to 100%. I have also noticed this...
100% CPU Usage & 100% Disk Usage in Performance & Maintenance
Hi all, I'm having a bit of trouble with Windows 8 on my laptop (I've named my laptop Romulus for future reference in this thread). First off, let me give you a brief history on Romulus' journey thus far: 1.) Bought pre-built from ACER with Windows 8 64-bit installed. 2.) After playing...
CPU Usage 100% in Performance & Maintenance
Hi Friend on 100% CPU system to a stand. Resulting in a sharp decrease in system speed. please help. Thank's.:o
Solved CPU @ 70% usage in Performance & Maintenance
Clean install of win8 pro on half the HDD in my laptop (other is XP) Disk space 24G, processor 1.6m, ram 1G Had typical CPU usage of 10% until the addition of windows media center pack. Now usage is 70%. Culprit is "system interrupts" which runs at about 60%. Suggestions?
Usage in Network & Sharing
Hi Everyone, Can someone help me please, Just bought new desktop pc with windows 8, previous to this I had vista and was using a daily broadband usage of between 200-300MB but now with windows 8 im using between 600-800 per day, are there program that I need to stop running and if so how, many...
Eight Forums Android App Eight Forums IOS App Follow us on Facebook