Windows 8 and 8.1 Forums


Running out of memory when running overnight.

  1. #1


    Perth, Western Australia
    Posts : 69
    7 Pro & 8.1 Pro & 8.1 Pro

    Running out of memory when running overnight.


    First let me say, I rarely leave my 8.1 system running all night as I generally switch off before bed.

    On the FEW occasions I leave the system running all night I always get the "Your computer is low on memory" warning.

    For instance, yesterday my software RAID mirror was "Re-synchronizing" and I wanted it to complete syncing so I left it running. NOTHING was running except Disk Manager. I closed down everything else. No browser, no Skype, no directory utility, no paint, no uTorrent....

    Sure enough when I woke up this morning there it was....

    A few days ago I wanted a couple of torrents to keep downloading so I kept the desktop running. Again NOTHING else was running and in the morning there it was....

    I have 16Gb of memory and my pagefile.sys is 42Gb. My OS disc is a 250Gb SSD. I have set my system to hibernate after 5 hours idle. I have set the screen/display to sleep after 30 minutes.

    The system isn't asleep when I wake as moving the mouse immediately brings the display back on line. Checking Task Manager shows NO memory hogs.

    What I suspect is (please feel free to confirm or deny this suspicion), after 5 hours the hibernation process denies access to memory requests or something?

    The strange thing is millions of people on 8.1 must leave their systems running all night but I have seen no mention of this behaviour.

    Comments anyone?
    Attached Thumbnails Attached Thumbnails Low Memory Warning.jpg  

      My System SpecsSystem Spec

  2. #2


    Posts : 467
    Windows 8 Pro


    Check the task manager next time it happens and see if anything obvious is hogging RAM.
      My System SpecsSystem Spec

  3. #3


    Yeah, you should check task manager if memory is still in usage, because some tasks may require some memory, i.e. i have 4 gb ram, and when i fresh install windows, i run windows update, and windows update installer hogs almost all my memory... But of course when it is done installing, it frees the memory.
      My System SpecsSystem Spec

  4. #4


    Perth, Western Australia
    Posts : 69
    7 Pro & 8.1 Pro & 8.1 Pro


    As I said, I did check the task manager and there were no apparent memory hogs.... In fact, when I checked, only about 1% or 2% of memory was in use.

    i think it is something to do with hibernation?

    i will try to switch off hibernation tonight and see if that makes a difference?

    i say "try" because I am still not confident enough with 8.1 to say I can.
      My System SpecsSystem Spec

  5. #5


    Perth, Western Australia
    Posts : 69
    7 Pro & 8.1 Pro & 8.1 Pro


    Sorry, I HAVE set my desktop to "Sleep - Never" so that suspicion was false

    I don't have a clue why I get the "Low Memory" warning when I leave my desktop switched on all night

    I will leave my desktop running again tonight. When I get the warning tomorrow I will snapshot the Task Manager display and post it here.

    I will close the Firefox browser so the ONLY process running will be uTorrent. I have already closed Disk Manager.

    Fingers crossed
    Last edited by louwin; 22 Jun 2014 at 10:23.
      My System SpecsSystem Spec

  6. #6


    Trnava
    Posts : 683
    Win 8.1.1 Pro x64


    Try to use RAMMap to find the culprit. I myself prefer Process Hacker it is much more informative.
    Attached Thumbnails Attached Thumbnails capture_06222014_164956.jpg  
      My System SpecsSystem Spec

  7. #7


    Perth, Western Australia
    Posts : 69
    7 Pro & 8.1 Pro & 8.1 Pro


    Okay, I left it on last night downloading 4 OLD TV series. They were 24 years old so no one should object about copywrites etc

    I got the low memory warning as expected but whatever caused it was well and truly over as Task Manager said 9% of memory was in use. I also attached a couple of RamMaps for anyone who can read them but I suspect the reason for the warning was over?

    The hyberfil.sys file is 12.5Gb, pagefile.sys is 44Gb and swapfile.sys is 256Mb if this helps?

    I am beginning to suspect I have a dodgy motherboard as I also have problems with my external USB3 HDDs too. I will try to raise another thread about the USB3 problem soon
    Attached Thumbnails Attached Thumbnails Task Manager Low Memory NOT.jpg   RamMap User Counts.jpg   RamMap Processes.jpg  
      My System SpecsSystem Spec

  8. #8


    United States
    Posts : 3,093
    Windows 8.1 Pro 64-bit


    I've had this happen with older programs/drivers. Found if I run it in compatibility mode, 7, Vista, Xp it goes away. Have to experiment which mode it likes.

    What download app are you using?
      My System SpecsSystem Spec

  9. #9


    Perth, Western Australia
    Posts : 69
    7 Pro & 8.1 Pro & 8.1 Pro


    Just a quick response - uTorrent.

    But it also happens with JUST Disk Manager running too.

    I would imagine both programs would be current and fully compatible with 8.1
      My System SpecsSystem Spec

  10. #10


    United States
    Posts : 3,093
    Windows 8.1 Pro 64-bit


    Quote Originally Posted by louwin View Post
    Just a quick response - uTorrent.

    But it also happens with JUST Disk Manager running too.

    I would imagine both programs would be current and fully compatible with 8.1
    Take it or leave it. Just telling you my experience.
      My System SpecsSystem Spec

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Running out of memory when running overnight.
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