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Serious memory problem on laptop.
I am not sure what is happening to my laptop lately. It all started about 2 weeks ago. I cannot track down what, if anything, happened at that time to cause this problem.
Anyhow, here is the problem in a nutshell. After 12 hours or so, or after returning from sleep, my laptop gives me a "low memory" message, and wants to close programs. Sometimes it reverts to 640x480 res automatically and just sits there waiting to be restarted. I have a on-screen memory viewer and at this time it says mem use is over 95%.
I have tracked the problem to the following: In Resource Monitor, under Physical Memory, when the problem occurs, the "Modified Memory", "Orange" bar, is well over 2.5GB. When I hover over this, it says Modified mem is "memory whose contents must be written to disk before it can be used". When the laptop is working fine, and on my other computers, Modified mem is never over 200MB, so this is definitely the problem. Why is it not writing this memory to disk? Why does it get to 2GB in the first place? I just don't get it.
What can I do? Please help.
Here are the specs: Dell Studio 17, dual core proc., 4GB memory, Windows 7 Ultimate 64.
Again, I ran this system for about 5 months the same way as now, and this problem just started showing up 2 weeks ago, and since then, it happens every day, and I have to restart (putting the laptop to sleep is no longer an option, neither is leaving it on for any length of time, and I hate that.)