Hi, I have recently bought a system based on ASUS P5LD2 motherboard, with Pentium 2.8 GHz Dual Core processor, 2x512 Kingston memory, GigaByte Geforce 7300GT and WD 2500-YS SATA II drive. The problem occurs already at device detection. The hdd is connected to SATA1 (primary) and my DVD-RW is connected to secondary EIDE channel. During the auto-detection phase the BIOS detects the DVD-Rom, but fails to display the hdd connected to the primary sata channel. However, if I enter in the BIOS, the SATA HDD appears on the main display, it appears as connected on the third IDE master channel. The hdd parameters are displayed correctly. I have tried to connect it on every SATA channel, the results are: - on SATA1: third IDE master - on SATA2: fourth IDE master - on SATA3: third IDE slave - on SATA4: fourth IDE slave By the way, on the Main display the DVD drive does not appear. On the Boot menu both of the drives appear. However if I select to boot from the DVD drive, inserting a Windows or Linux boot CD, the system crashes (Windows: blue screen after loading the drives; Linux: freezes). I can't tell if it is a motherboard or a hdd error, or simply a BIOS error and the only issue is to update it. Or there is something wrongly set in the BIOS, although I have tried with the default settings. If the BIOS needs update I will need some guidelines, because I don't have a floppy drive. I have another hdd (not SATA). From this I could boot in safe mode, although with the SATA drive the system crashed when I wanted to boot from this drive. I have to try without the sata drive. Anyway, If somebody knows any sollution please don't hesitate to post it. Thanks in advance!