Doug <Doug wrote:
>> BIOS and System|Properties show correct size of installed RAM while
>> System Tools|System Information and Task Manager|Performance show the
>> maximum usable part of the installed RAM. The maximum usable part
>> could be as low as 2GB. Therefor,if 4GB is installed and Task
>> Manager|Performance indicates that the Total Physical Memory is 2GB,
>> then half of the installed RAM is waisted.
> Correct. Your BIOS should tell you how much is detected, your OS how

Thanks for your clarification. I thought about removing the 2GB stick
for use somewhere else, but that makes the memory access be single
channel(two sticks are being used as dual channel operation) so decided
to leave it in.