Hi all, Have a weird one I can't fathom and looking for any advice/s****tions I can get. My wife's PC uses a Gigabyte GA-8VM800M-775 motherboard. It has two SATA connectors - SATA0 an SATA1. I have a Maxtor SATA HDD drive connected to SATA0. Before now, I never tried connecting it to SATA1 but if I now do, it isn't found in the BIOS or in Windows (XP Pro) despite the SATA switch in the BIOS being set to "Enabled". As I have only the one HDD drive, I installed the SATA driver when I first installed the Maxtor. The SATA type is set in the BIOS to "IDE" rather than "RAID". I have just replaced a Lite-On (IDE) CD-RW drive with an LG (SATA) DVD burner. If I remove the HDD and connect the DVD to SATA0, it is found in the BIOS without problem but connecting it to SATA1 doesn't, just like the HDD. I have installed the latest BIOS for this mobo and chipset drivers from Gigabyte's site but without success. The boot sequence is set to "HDD, CD, and Floppy" though one suggestion was to reverse this - I've done so, without success. To test a solution, I purchased an Ultra ATA (IDE)/SATA connector - it fits into the IDE socket on the mobo but has two SATA outputs; SATA1 is one for a SATA mobo to parallel ATA HDD whilst SATA2 is for a parallel ATA mobo to a SATA HDD. Using this device with the SATA cable connecting the SATA2 output to the DVD drive and inserted into IDE1 socket on the mobo, it's found in IDE Channel 1 as a Master and works in XP OK. When I bought the DVD drive, I thought it was going to be a simple matter of plugging it in. I have searched the Gigabyte site and the Internet but haven't found any reason why the SATA1 connection isn't working or even how to turn it on or off, so perhaps the mobo connector is useless. Ideally, I would prefer to get the SATA1 socket working as it allows geater speed transfers rather than using this connector. Anyone got any other suggestions or ideas I can try on how to get SATA1 turned on? Thanks in advance.