user: Question: What is the brand name associated with the model 4x0?
Columns: ['Processor', 'Brand name', 'Model (list)', 'Cores', 'L2 Cache', 'Socket', 'TDP']
Types: ['text', 'text', 'text', 'real', 'text', 'text', 'text']
Sample row: ['Allendale', 'Xeon', '3xxx', 2.0, '2 MB', 'LGA 775', '65 W']
SQL:

assistant: SELECT "Brand name" FROM "Table" WHERE "Model (list)" = '4x0';