Is it stable? If its totally stable, its fine.
To ensure stability, Run Prime95's torture test for an hour or so and Memtest86 overnight. If they don't crash, it's stable.
Not directly applicable, but just FYI about stability - my old Athlon XP runs everything I throw at it at 193fsb except Prime95 - it'd crash after a while. At 191fsb Prime95 was happy, so that's what I run at.