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My Windows 10 64bit PC has 16GB of physical RAM:

C:\>wmic MEMORYCHIP get BankLabel, DeviceLocator, Capacity
BankLabel  Capacity     DeviceLocator
BANK 0     17179869184  ChannelA-DIMM0

Also under About your PC it says:

Installed RAM 16.0 GB (15.7 GB usable)

But in Task Manager my memory shows as 83% full. Once in a while some applications get automatically closed because of out of memory issues. So I digged in to check what uses so much RAM. The biggest offender was Firefox with about 800MB of RAM. But that's just not that much. Then I did a tasklist /FO CSV > tasks.csv to sum up all the memory usage, and the result was 6.4GB, which is about 83% out of 7.7GB (assuming that 0.3GB are always reserved for video stuff).

This suggests that even though Windows sees the full 16GB, it only uses 8GB. Or, it uses 8GB for some secret stuff it doesn't want to show in task manager.

Any suggestions on how to investigate this further?

Andrei
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1 Answers1

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Is it system or hardware reserved in task manager? If you have hardware that has shared memory like iGPU, it can reserve RAM to use as iGPU memory. Or you RAM may be installed in an unsupported configuration. Without more details about the hardware itself (how many DIMMs, what motherboard, whats the DIMM capacity, what other hardware is in the machine) or log files it's really impossible to tell.

kamil234
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