I have two full-sized NTSC/60Hz SNES consoles. One has a CPU v.2/PPU1 v.1/PPU2 v.2 and the second has CPU v.2/PPU1 v.1/PPU2 v.3. The PPU v.3 console has a sticker just below the Power button. On the earlier, PPU v.2 console, I experienced the graphical glitches in Jeopardy and lack of sound and input in Family Feud. Hitting reset caused those problems to go away. In the Later, PPU v.3 console, Family Feud and WWF Raw would not load and Jeopardy would not get past the Gametek logo, when it even got that far at all.
I have had varying success with fixes and hacks. Terranigma (E) [f1] works fine. Super Noah's Ark 3D (U) [h1C] works when Super Noah's Ark 3D (U) [!]. If NSRT, ZSNES or SNES9x report the ROM as bad, good luck getting anything working.