I want to be able to boot my Toshiba Satellite laptop P205D-S7436 using an external sata hard drive using an enclosure connected to an Esata express card. The hard drive is detected in windows, but not in the first screen of the BIOS. The BIOS does not allow search for additonal hard drives. I have a internal Hitachi 120 gb hd installed. The external hd is a Hitachi 500 gb 2.5 sata hd. If I use a USB cable, the drive is detected in the boot section of the BIOS but will not boot. From what I have read on the internet the USB is too slow to boot, but a sata drive should be capable. I don't understand why the esata connected drive is detected in windows, but not in the BIOS. I have looked for BIOS updates that address this problem but have not found any. Any sugestions?