I'm looking but don't see info yet on a USB debug port in ICH5, anyone know?
The issue is that the Dell Server 1850 node I'm trying to get working doesn't give direct COM1 access to the P4; it goes through a (ack! Ptui!) baseboard maintenance controller. So to talk to COM1 you have to know how to talk to the BMC. This may just be another non-standard IPMI interface or something else, not sure, but in any case I figure the USB debug port might be easier.
ron