[youtube]http://www.youtube.com/watch?v=jeY0atkyT_c[/youtube] Curiously, the banding seen in the software rendered DOS version of Tomb Raider at 4:21 here seems to correspond to the behavior on the old GPU and VRAM, while the smoother shadows seen on the new GPU and SGRAM look more similar to the ha...

Hi, I'd like to pick up a PSX with the old GPU and VRAM. Is there any way to determine which consoles should have the early PU-8 boards through serial number, similar to the 1CHIP revision of SNES/SFC?