7.0 RC1 amd64 -- no boot with 3ware 9650-2 port

[Support (Rudy)]

Rudy Rucker wrote:
> 
> Not sure if it is the 3ware card or the motherboard (supermicro X7SBi) 
> that is holding up the boot.
> 
> BUT, when booting the freshly download RC1 ISO from IDE CDROM, the boot 
> stops ... last line is "da0"  (the 3ware array).

I pulled the 3ware card and still no install.

Output was something like this on the console:
ad0...
ad2...
acd0...
SMP: AP CPU #1 Launched!
--------------  STUCK HERE  ---------------

So, I rebooted and put in a 7.0 RC1 i386  (instead of the amd64).
Same problem...

I tried with a 6.2 amd64 disk I had kicking around -- works fine.  Gets 
me to the install menu.

[1] Am I incorrect to assume that an 'amd64' disk will install on my 
Intel Core DUO and give me a 64bit OS?


[2] Is this a compatibility issue with the SUpermicro x7DBi motherboard?

Hoping for answers,
Rudy