Revert "Remove RAM warning"
Revert "Remove RAM warning"

This reverts commit 5738ac727d890f2a661e549117e2fa5ecd96ef7f.

sagemathinc/smc,DrXyzzy/smc,sagemathinc/smc,tscholl2/smc,tscholl2/smc,tscholl2/smc,DrXyzzy/smc,tscholl2/smc,sagemathinc/smc,tscholl2/smc,DrXyzzy/smc,sagemathinc/smc,DrXyzzy/smc