4kb error

Hi there! So im using this hardware: - GA-P55A-UD3 (Bios F11) Motherboard - Intel Core i5 760 CPU - Gigabyte GeForce 9800GT 1024Mb (Dual DVI) In addition i use: - 6 Gb of 1333MHz RAM (3 x 2) - 2 x 1Tb SATAIII Seagate HDDs (512b - TimeCapsule at 3rd SATA-port / 4Kb - System at 2nd SATA-port) -...