So with the help of the retro computer discord I managed to get my socket 7 computer upgrade from an Intel SY022 133mhz cpu to an Intel SY045 200mhz cpu. After the upgrade the computer was freezing at 14% of the post sequence. Sadly this is an OEM with an permanent splash screen so I couldn't see the error or get into pre-setup info post page. The troubleshooting basically amounted to leaving the system at 66hz and stepping cpu clock down to 133mhz up to 166mhz and then 200mhz. When we got back up to 200mhz the system successfully posted. However, the COAST module that has been installed and working for quite a while at this point is no longer detected by the bios. It threw an error on the first successful post stating that the cache module had been removed and there was no L2 cache listed on the system information either. I cleaned the pins on the coast module with an eraser followed by 99% IPA so they are nice and clean but still no dice.

The computer I'm working with is an HP Vectra VE 5/133 Series 3. No bios settings for cache or anything of the sort were changed during any of this.

If anyone has any ideas I'd very much like to hear them. I've attached pictures of the COAST module in question as well a list of the modules I currently have hanging around. All are synchronous as best I can tell.