Complex sentence: All the models apart from the base 380 could run Windows 2000 exceptionally well, however, for it to run smoothly, the 380 would need to be configured with at least 64MB of RAM and a 2.0GB hard drive or larger.
Split into simpler sentences: All the models apart from the base 380 could run Windows 2000. For it to run smoothly, the 380 would need to be configured with at least 64MB of RAM and a 2.0GB hard drive or larger.