Generally I thought you could, other things being equal. I'm trying to upgrade a Micron Vetix server that says it takes fast-page or EDO DRAM in DIMM sockets, with sizes up to 128MB. But the two 128MB PC133 DIMMs I've installed aren't recognized. The initial 128MB (as 4 sticks of 32MB each) are still recognized, and the system still runs, but without the new memory. It says that the "example configurations" are just examples, not the full set of valid configurations -- but the exact one I'm using, 4 32MB sticks in banks 0-3, 2 128MB sticks in banks 4 and 5, *is* one of the examples, so it's not that I'm falling afoul of the legals ways to combine memory sizes. Of course this system was made before PC133, so if that doesn't reliably work that could be the problem. Anybody want to trade two PC133 sticks of 128MB each for PC100 sticks? (These are new from General Nanosystems, back when they had the $15/128MB deal going). This system really *needs* more memory. Running PostgreSQL and Apache and mod_perl and HTML::Mason, and I see swapping starting to happen just when the performance suddenly drags horribly (15 seconds to serve a page sometimes. -- David Dyer-Bennet, dd-b at dd-b.net / New TMDA anti-spam in test John Dyer-Bennet 1915-2002 Memorial Site http://john.dyer-bennet.net Book log: http://www.dd-b.net/dd-b/Ouroboros/booknotes/ New Dragaera mailing lists, see http://dragaera.info