Saturn heat issue, resets, graphical glitches

Edited original post to make it more helpful for others with a similar problem.

My Sega Saturn was recently having an issue with graphical glitches and disc reading. Oddly, some games ran perfectly fine while others seemed to occasionally exhibit graphical glitches and even cause the Saturn to reset on it's own. (Examples of glitches include: missing buildings and corrupted menus in Road Rash, random out-of-place graphics in Bubble Symphony with random resets, extended load times and/or freezes, missing music, etc.)

I noticed that the Saturn was running rather hot. Again, some games were running fine, others were giving me problems. I then remembered that some games only utilize one of the Saturn's video chips, the VDP1, whereas others use both, VDP1 and VDP2. This led me to suspect that perhaps VDP2 was overheating.

Solution: I had a few spare video ram heat sinks lying in a box, and grabbed a few other heat sinks from spare computer parts. I applied Arctic Silver thermal compound to the three chips circled in the picture below and placed the heat sinks on each. It was a challenge getting everything to fit, as very low profile heat sinks are required with little room available in the Saturn's interior. I even had to trim the mainboard's EM shielding to get everything to fit, so be aware of this challenge.

After stress testing the system for more than four hours, I haven't seen any graphical glitches or resets. Clearly the heat sinks have improved the situation, although with aging hardware there's always the possibility of the situation worsening soon or in the future.

(The system recently had all capacitors replaced, so I know the problem is unrelated to these components.)