Why is the CPU usage low but physical memory high?

All programs use memory, especially anti-virus software or startup items. As long as it is running, it is using memory, but not running the CPU, because it is running but you don’t use it. , so the computer CPU usage is very low but the physical memory is high.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

In fact, this is normal, because all programs use memory when running, especially those anti-virus software, or startup items. As long as it is running, it is using memory. But the CPU is not running, because it is running, but you don't use it, so the brain CPU usage is very low but the physical memory is high.

If you are running a game, if it is a big game, it will require CPU operation, and the CPU usage will be very high. You can end the tasks from the memory for those things that you are not running. My computer generally has around 350 RAM. My RAM is 2G and is rarely used, so running things is very fast and I don’t need to. All things end the task, so that the phenomenon of high physical memory disappears.

What is physical memory

Physical memory (Physical memory) is relative to logical memory. Physical memory refers to the memory space obtained through physical memory sticks, while logical memory refers to dividing an area of ​​the hard disk as memory. The main function of memory is to provide temporary storage for the operating system and various programs when the computer is running.

High physical memory usage Solution 1:

Install one more piece of physical memory. Of course, this is the most fundamental and fastest way to solve the problem. The existing 2G memory is just enough for Win7. If we install too many programs, it will definitely cause the system to run slowly. If possible, directly switch to a 64-bit operating system so that the system can better recognize and call large memory.

Solution 2 for high physical memory usage:

Install some memory sorting software. Before you can run large programs, run the memory sorting software first to sort the memory. to mitigate high memory usage.

Solution three to deal with high physical memory usage:

Set a larger virtual memory. The virtual memory setting must be 1.5 times the actual memory.

Technical documentation: How to set up virtual memory How to set up virtual memory best

System self-test is easy to do

First check whether there is an error in the system's recognition of physical memory The problem. First press Win key G to enter Task Manager and click Memory Applications. If you find that the memory usage exceeds 50%, it may be that the computer has an error in recognizing physical memory. At this time, click Clear Memory and observe the memory recovery. If it returns to 10%, then click the error report in the lower right corner, and the system will automatically detect the data. After a while, the computer's physical memory will return to normal.

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