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  1.    16 Nov 2015 #1
    Join Date : Nov 2015
    Posts : 6
    Win10

    CPU throttle, even on 'high performance' power plan


    Hello tenforums!

    I have been having some really annoying performance problems after upgrading my laptop from win8 to win 10.
    My laptop is a asus ux32vd, with an Intel i7-3517U cpu.(normal core speed: 1.7ghz, turbo: 2.4ghz)

    CPU-Z is showing ~990mhz constantly, no matter how high load there is on the cpu, and what temperature it is(usually around 50-60C).

    I just cant figure out what is going on, and why it keeps throttling. Everything is running really slow, chrome is slow, facebook is like a pain in the ass to scroll through. Tried resetting the power plans to default, that didnt work. sometimes it helps changing power plan, and the restarting, but its not consistent at all.

    Anyone who know what it could be?
      My ComputerSystem Spec
  2.    16 Nov 2015 #2
    Join Date : Nov 2015
    Posts : 25
    Windows 10 x64

    Bios version?
      My ComputerSystem Spec
  3.    16 Nov 2015 #3
    Join Date : Jul 2014
    San Jose, California
    Posts : 2,196
    Ubuntu14.04x64 MintMate17x64 Win10Prox64

    Go into BIOS. Look for C1E state and disable it.
      My ComputerSystem Spec
  4.    16 Nov 2015 #4
    Join Date : Nov 2015
    Posts : 6
    Win10
    Thread Starter

    Im running the newest BIOS version available for my device, version 214.

    The BIOS is very limited, there is no "C1E state" option available
      My ComputerSystem Spec
  5.    16 Nov 2015 #5
    Join Date : Aug 2014
    Forever West
    Posts : 3,985
    Win10 Home and Pro, Win10 Insider Preview, Win7 Home, Linux Mint

    When I've seen that I usually fixed it by going to Power Options in Control Panel and change the use of the portable to either Desktop or Always on then rebooted. Seems Windows gets stuck on the Speed Step function and needs to be 'woke up'. Sometimes going back to the original setting works but not always, not a problem if a person keeps it plugged in, not traveling with it. Usually the only effect is a shortened charge when not plugged in.
      My ComputerSystem Spec
  6.    16 Nov 2015 #6
    Join Date : Oct 2015
    Guernsey
    Posts : 50
    Windows 10 Pro 64 bit

    Two suggestions spring immediately to mind: 1) perform a thorough virus and malware check with a proprietory antivirus checker. Make sure it is up to date first. Spyware and malware are notorious at slowing down otherwise roadworthy PCs. 2) Maybe you need more RAM. Go on Crucial.com - DRAM, solid state drive (SSD) memory upgrades for Dell, Mac, Apple, HP, Compaq, Lenovo, Acer, ASUS and run the ram tester to see if you can install more RAM. You don't need to actually buy it there necessarily!
    Also you could try checking in system monitor if there are any processes which seem to be taking up a lot of memory. Rogue processes sitting in RAM could slow down your PC a lot.
    Having said this my PC did also slow down noticably when I upgraded to Windows 10. I hope that helps somewhat.
      My ComputerSystem Spec
  7.    16 Nov 2015 #7
    Join Date : Nov 2015
    Posts : 6
    Win10
    Thread Starter

    Thanks for you answers!

    Berton, hmm yea that might be a fix, but that is not really a proper fix. :/

    Maugli, I started scanning it now to see if there is any malware.
    i have 10gb of ram in it, that should not be an issue.

    Ive noticed that in ressource monitor is states that its max cpu frequency allowed is 40%. I also noticed when i ran a stress test through cpu-z, task manager only showed 40% cpu usage. So somehow there is a lock on the cpu frequency. the power plan is allowing 100% cpu usage with/without charger connected..
      My ComputerSystem Spec
  8.    16 Nov 2015 #8
    Join Date : Oct 2015
    Guernsey
    Posts : 50
    Windows 10 Pro 64 bit

    It could be your DRAM settings and your Front Side Bus. these could be set by the manufacturer in the factory for safety reasons. To prevent overheating. There are forums concerning "overclocking" e.g. Latest OCAU News - Overclockers Australia I can't recommend any or vouch for the results however. It might be that the type of RAM you are using or the RAM timing is preventing the CPU going any higher. Laptops are difficult to overclock unless you have a top end latop that supports overclocking. As you say some CPUs are locked by the factory settings.

    EDIT: Oh and I wouldn't trust the software that is telling you it is only running at 40%. May not be 100% accurate.
      My ComputerSystem Spec
  9.    16 Nov 2015 #9
    Join Date : Nov 2015
    Posts : 6
    Win10
    Thread Starter

    Well it was working fine, scaling like it should etc. on windows 8, so i dont see how any hardware related shouldve changed by formatting to windows 10.
    So far i havnt had a single moment where i was convinced that the upgrade to win10 was worth it, it has only been dissappointment after dissappointment since i installed it..

    EDIT: no malware was found.
      My ComputerSystem Spec
  10.    16 Nov 2015 #10
    Join Date : Dec 2014
    Posts : 437
    Windows 10 Pro x64

    Check the Minimum and Maximum, processor state in the Performance power plan's advance setting. Make sure they are both 100%. Sometimes they get mixed up when switching between plans.
      My ComputerSystem Spec

 
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