GregBs profile shows he has 16gb ram, so the temp remove ram comment was for him. If you have >2gb, and you are getting HAL errors during install, then to you as well.
The temp disconnect non-Apple hardware was for anyone getting HAL errors.
"automated configuration" is what occurs during the GUI portion of the install.
That is, the period after the files are copied (the blue background/white text screens) and the system reboots, and the actual first login to windows.
It is the section that asks about date/time, internet/IP settings, etc.
Short of physically removing it, there is no way to 'adjust' ram during setup. It is seen during the discovery ('windows is checking the system') portion of setup.
Since I had read some systems with >2gb ram complain, I thought it worth mentioning here.
However, if you are using parallels or similar, /after/ installation is complete, I believe Parallels and VMware both let you adjust memory and CPU allocation.