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_name_82 ( processors_supported VARCHAR, pci_express VARCHAR, model VARCHAR )

### Question ###
Which processors are supported with a PCI-express of x16: 1 slot x1: 4 slots and the nforce 550 model?

### Accurate SQL ###

SELECT processors_supported FROM table_name_82 WHERE pci_express = "x16: 1 slot x1: 4 slots" AND model = "nforce 550"