OS: Windows XP Pro SP2 Motherboard: Abit IS7-V RAM: OCZ 1GB DDR 400 2-3-2-6 GPU: Sapphire ATi X800GTO CPU: P4 Prescott @ 2.4GHz HT Enabled Sound: Creative Audigy SE Hard-Disk: Maxtor DiamondMAX 9 Family (Sata 133 supported) Yes i know this pc of myn is a little bit aincient but i just ran a tool to tell me what UDMA mode my pc is running, and it appears to be running in UDMA mode 5 (Sata 100) and not 6 (Sata 133) when UDMA mode 6 is supported! Can anyone help me to enable UDMA mode 6?