Hi All, I have problems in the configuration below with Win95a which runs all the HDD in slow MS-DOS compatibility mode. I don't know why !! Autoexec.bat & config.sys do NOT contain any real-mode driver ! Asus patch has been run for PCI detection with Win95. Intel PIIX4 BusMaster driver can't be installed due to above problem. Asus P2L97 mobo (440LX chipset), A Seagate HDD (UDMA2) (Master Primary) A Quantum Fireball 1280A (PIO4) (Slave Primary) A Daewoo BCD 24X (ATAPI) (Master Secondary) Any idea ? Thanks for answer Philippe