I have often wondered about that myself, though I have never bought a mobo that didnt have a floppy controller. XP is hard coded to look to A drive FIRST for SATA drivers - they key question is can you then search other places to get them - like a usb floppy. But then the followup question is can the XP install CD mount basic USB drivers to access usb floppy during install????
perhaps yes, this link implies you can "steer" install to separate CD
http://www.experts-exchange.com/Hardware/Q_21619840.html
"So what you do here is this: burn the SATA drivers onto a separate CD. Then, begin the OS install as normal. When prompted for the SATA drivers, remove the OS install CD, replace it with the SATA drivers CD, browse that CD (it may do so automatically) and point to the drivers. After driver install, remove that CD and replace it with the OS CD to finish install."
trevelynzx>>>
For my own info, i would really like you to try the 2 CD method - cant hurt.
Just put drivers only on CD - no folder - so XP can find them without complicated path
this link from HP implies you can access usb floppy during install........
http://h20000.www2.hp.com/bizsupport/Te...ocument.jsp?objectID=PSD_EL050616_CW02
Inquiring minds want to know.
Edit: Just want to confirm that "bootability" of CD\USB has ABSOLUTELY NOTHING to do with this problem.