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As of late, right after boot, my Windows 8.1 (64 Bit) is using 5-6 GB RAM of the available 8 GB. I found a similar question (Windows using too much RAM, how to diagnose resource hog), which unfortunately only partly helps me. The issue I am facing is that I am failing to identify the driver that is hogging the memory. Here is some information from my system: What the task manager reports: Mask Manager Memory Information Using RamMap to get more detailed information: RamMap

So RamMap clearly shows that my drivers need more than 4GB of RAM. Using the same diagonstics described in above answer, I used poolmon for further analysis (not using the grouping by via P since my issue does not seem to be the nonpaged RAM): Poolmon

So what this essentially tells me is that my most memory intense driver is using ~100MB of RAM. So this surely does not add up to 4GB.

Does anyone know what else could cause the high memory consumption?

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SirRichie
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  • Onboard video card? – krowe Nov 17 '14 at 23:36
  • I'm not using an onboard video card, I have a dedicated video card with dedicated memory (1GB), so I don't think this is shared (video) memory. Thanks though. – SirRichie Nov 17 '14 at 23:38
  • VM, RAM Disk, SQL server, or other large RAM storage media? Also see this thread: http://forum.sysinternals.com/rammap-driver-locked_topic23326.html – krowe Nov 17 '14 at 23:43
  • VM did the trick. I feel stupid now. I was *really* sure that my VMs were turned off, but it seems that for whatever reason, one was still running (using Hyper-V). After suspending it, I got my RAM back. Thanks a lot - do you mind posting this as an answer so I can accept it? – SirRichie Nov 17 '14 at 23:48
  • I would add that your "Paged pool" and "nonpaged pool" counters in Task Manager and RAMmap showed no sign of "excess memory used by drivers". There was no need to run poolmon. – Jamie Hanrahan Jul 21 '15 at 07:59

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VM, RAM Disk, SQL server, or other large RAM storage media are going to be the most likely things that regularly use this much RAM. See this discussion for more information on how these affect 'Driver Locked' memory.

I believe this can also be caused by setting your on-board video memory way too high if you are using an on-board memory card.

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