[arch-general] System hangs at "Booting the kernel" upon drive addition

Hello, I have a system which is hanging during boot at the line "Booting the kernel" when I have a drive connected to either port of the PCI-Express SATA card I recently installed (chipset ASM1061). When a drive is not connected to the card, the system boots normally, and connecting the drive to the card after booting leads to no errors or other problems. I am running the latest version of linux and linux-headers in the core repository. It is worth noting that I also have an identical SATA card in the same system with two drives identical to the one in question connected to it. This setup has operated smoothly for about six months. Cheers, pants.