Neo Drift Out invisible to MV6, but works in MV1

[DrHuxtable]

I've tested TWO Neo Drift Out carts. The first I bought on eBay and returned it for a refund because I thought it was bad. The second I bought from a forum member. Same issue. So... doh.

I've tried it in all slots. MV6 does not "see" it. Verified all slots work with other games. Found a MVS game chipset chart and tried a game with the same chipset. That game works. So I'm at a loss here.

FWIW, the MV6 has the Unibios and the MV1 is vanilla USA. But I'll be damned if I dig into my Big Red to switch the BIOS. It's picky enough as-is.

 

[xsq]

Have you:
- Cleaned the slots with a contact cleaner (like Deoxit)?
- Reset the Backup Ram?

Shouldn't be BIOS related, but switching it out should be easy, it's socketed.

 

[mikejmoffitt]

If the system just won't recognize it's there, then the problem lies in the 68000 bus on the PROG cartridge. Make sure the pins are really clean on that board, and don't hold back on isopropanol.