CREATE TABLE table_38741 ("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)

Which FSB/HT frequency (MHz) has a SATA larger than 6 and DDR 266/333/400 Registered/ECC memory?
SELECT "FSB/HT Frequency (MHz)" FROM table_38741 WHERE "SATA" > '6' AND "Memory" = 'ddr 266/333/400 registered/ecc'
SELECT "FSB/HT Frequency (MHz)" FROM "table_38741" WHERE "Memory" = 'ddr 266/333/400 registered/ecc' AND "SATA" > '6'