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MVS-1C Problem - Resetting Issue

I would try clearing backup ram and see if that makes any difference.
 
You mean that it boots fine on MV1C?
So it's a proof that the PCB is 100%.
I left the mvs-1c powered on without a cart for awhile and this is what it started doing.

20210225_020158_HDR.jpg

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After rebooting it again, it gave me this garbage screen each time I rebooted it. Strange.
 
Yeah all of the listed other games work fully on the mvss-1c ONLY the garou doesn't.
You are working with a 22 years old PCB, you know how many carts was inserted and removed from the socket? Of course will be some kind of contact issue.

About the actual error, still happening?
 
You are working with a 22 years old PCB, you know how many carts was inserted and removed from the socket? Of course will be some kind of contact issue.

About the actual error, still happening?
I booted the board this morning and everything worked fine. I booted it without a cart and it went to the I/O menu and I cleared the RAM memory again. It appears to be fine, again, no luck with Garou. I did a continuity test on the cart slot to the underside where the pins were at and everything checked out.
 
Have you tried upping the 5v a bit to see if it helps?
 
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