Maximum memory with Windows 98 is 1GB (with problems).

Email I wrote to the team I was working with, back in December 2003:


Undoubtedly with the new standard desktop having 512MB RAM, some bunny will try for 1GB.

Memory >512MB requires some entries to be placed into SYSTEM.INI.

From Microsoft:
Windows Me and Windows 98 are not designed to handle more than 1 GB of RAM. More than 1 GB can lead to potential system instability.

Computer May Reboot Continuously with More Than 1.5 GB of RAM (304943)
“Out of Memory” Error Messages with Large Amounts of RAM Installed (253912)

Error Message: Insufficient Memory to Initialize Windows (184447)

Specifying Amount of RAM Available to Windows Using MaxPhysPage (181862)

And yes, we did see a bunny in the field try it, and the answer was “you were warned, we told you it wasn’t supported”.

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