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Topic:

Memory caching

Posted by: Rex M.      31 Jan 2012 @ 13:29
Memory caching

my machine a hp imedia x2416 has worked perfectly since i bought it over a year ago. this weekend just passed it started to cache all my ram memory away all 4gb of it, i also noticed that on task manager under performance it states i only have 3gb of ram!. why does it say this and why did the ram chaching happen and how do i fix it??

thanx for help in advance

Reply by: Jon S. PCIQ IT ProfessionalIT Professional in Morecambe, LA3      31 Jan 2012 @ 13:56
RE: Memory caching

32-bit windows can't address more than around 3.5Gb of RAM, with the result that some PCs mis-represent the amount installed. It depends on the chipset as to how much is shown, but, even if it showed the full 4GB you wouldn't be able to use it all
As to "ram caching" I don't understand what you mean. Where are you finding these reports? What exactly are they telling you?

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Reply by: Wim W. PCIQ IT ProfessionalIT Professional in Rushden, NN10      1 Feb 2012 @ 05:56
RE: Memory caching

A modern OS will use most of the unused RAM to cache files in order to speed up file reading/writing.

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Reply by: Alan B. PCIQ IT ProfessionalIT Professional in Cambridge, CB22      1 Feb 2012 @ 06:50
RE: Memory caching

Rex, I would try a System Restore to a date before your problem arose.

Jon, look under the Performance tab in Task Manager. This distributes the physical memory between "Cached", "Available" and "Free". If you use the tab at the bottom of that page to open the Resource Monitor you can see a more detailed breakdown of memory use. "Cached" memory indicates (I think) memory in use. So Rex is suffering from 100% memory use.

FYI, I have 4 GB of RAM on my computer and currently about half of this (1840 MB) is shown as cached.

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