user: Question: What is the socket for Order Part Number TMDTL68HAX5DM?
Columns: ['Model Number', 'Frequency', 'L2-Cache', 'Multiplier 1', 'Voltage', 'Socket', 'Release date', 'Order Part Number']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Turion 64 X2 TL-56', '1800MHz', '2 x 512 KB', '9x', '1.075/1.10/1.125 V', 'g Socket S1 1', 'May 7, 2007', 'TMDTL56HAX5DC']
SQL:

assistant: SELECT "Socket" FROM "Table" WHERE "Order Part Number" = 'TMDTL68HAX5DM';