I just installed an OCZ Vertex 2 160GB SSD on my HP desktop with an Asus IPIBL-LB motherboard. I shifted my HDDs to SATA slots 1 and 3 on the MoBo, and put the Vertex on slot 0. I then started a clean install of Win7, but I've found that when I reboot, about 3/4 of the team, it doesn't recognize the SSD as a boot device. It always shows up in the list of devices, but the Intel Matrix Storage ROM doesn't report it most of the time, and it doesn't show up on the list of boot devices in the setup menu sometimes. Other times, it shows up on the list just fine, and boots very nicely. I installed the latest BIOS from HP (dated August 2010), but it hasn't helped. I'm about to try buying a PCIe SATA controller, even though I may lose some perf. I'm hoping the auxiliary SATA controller will bypass whatever I'm seeing. Has anyone else encountered a similar problem?