BigAdmin is hosting a new tool : Installation Check Tool 1.0
The tool is actually an (68MB) ISO image to burn on a CD. Try to boot from the CD and after the Solaris 10 01/06 kernel is started, the tool will report all devices that were detected together with a flag mentioning whether there is a driver available for it ( from Sun or third party ).
To note :
Why not trying the tool before downloading the 4 CDs of S10 ?
stealed here