M91p 32-bit Ram question

Hi all

I've recently updated my i7 m91p of ram from 4 to 16 gigs, the max allowed on my machine. However only 2.8 are usable, I said that it is because I am on 32-bit os and need to clean install a 64-bit. How would I know if I can install 64, technically if 32-bit does support 4 gigs and this machine is able to 16 gigs ram upgrade is not means that it will run 64-bit... If not, how he would see the ram in 32-bit. Thank you very much


Yes, the processor can run either 32-bit or 64-bit. 64-bit is necessary for more than 4 GB of memory.

No changes to the BIOS settings, but better to be on the most recent, it is working fine for me. Use the method ISO from CD (burn a CD), as Windows 10 not supported for this system, and the Windows flash may not work properly.

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