I just built two SN41G2's and put Barton 2500's in them both. Both booted first time, with no worries.
I immediately flashed the bios to the latest version, and had no trouble there, either. My set-ups looked like this:
+ SN41G2
+ 2x512 PC3200 Mushkin Level II Dual Pack
+ WD 200 GB (7200/8...