CREATE TABLE table_38739 ("Model" TEXT, "Processors Supported" TEXT, "FSB/HT Frequency  ( MHz ) " TEXT, "Memory" TEXT, "PCI-Express" TEXT, "SATA" FLOAT, "PATA" FLOAT, "Sound" TEXT, "Network" TEXT, "Features" TEXT)

How many PATAs does an nForce Professional 3400 MCP have?
SELECT SUM("PATA") FROM table_38739 WHERE "Model" = 'nforce professional 3400 mcp'
SELECT SUM("PATA") FROM "table_38739" WHERE "Model" = 'nforce professional 3400 mcp'