The card is configured in 1+0 . with 128k stripe afaik (I'm a developer, we don't have hardware guys here). Are you's sure about the lack of cache by default on the card ? I thought the difference is that 5104 has 256, and 5105 has 512 ram already on it. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance