Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_10926 ( "Model" text, "FSB (MHz)" text, "Chipset" text, "Memory" text, "Graphics" text )

### Question ###
What is the chipset in the Precision 340 model that has the rambus memory and 400 or 533 FSB (MHz)?

### Accurate SQL ###

SELECT "Chipset" FROM table_10926 WHERE "Memory" = 'rambus' AND "FSB (MHz)" = '400 or 533' AND "Model" = 'precision 340'