USB Drive(s) not detected on P4SCE Motherboard under FreeBSD

[Martin Dorschler]

USB drives are not detected on boot (and rarely when connected after  
booting) on P4SCE Mobo (Intel E7210 chipset)
Tried with Seagate 9w2874 and different enclosures w/ WD & Maxtor
Only Occurs under FreeBSD (have tried 5.3 & 5.4) with this board  
(OpenBSD detects fine and FreeBSD w/ other Mobo's works fine)

Suggestions? Patches?