MV-1B Resetting at Title screen

daskrabs

Ace Ghost Pilot
10 Year Member
Joined
Aug 23, 2010
Posts
1,313
Any ideas? MV-1B, pretty clean boards, clean slot, good power, cleared backup RAM via DIP1. Crashes at title screen if it ever gets there. Voltage needs to be at least 5.15v, otherwise, crashes after BIOS. I can get into BIOS and do everything, except it crashes when I clear backup RAM.
 

Jonap

Mega Shock!!
Joined
Oct 10, 2006
Posts
100
Any ideas? MV-1B, pretty clean boards, clean slot, good power, cleared backup RAM via DIP1. Crashes at title screen if it ever gets there. Voltage needs to be at least 5.15v, otherwise, crashes after BIOS. I can get into BIOS and do everything, except it crashes when I clear backup RAM.

Hello, im not expert but this boards very usually fails on neo-buff chip, 90% of chinese boards come with the chip changed or repaired.

I repeat i dont know if is this or not, but is a very common problem.
 

daskrabs

Ace Ghost Pilot
10 Year Member
Joined
Aug 23, 2010
Posts
1,313
Hello, im not expert but this boards very usually fails on neo-buff chip, 90% of chinese boards come with the chip changed or repaired.

I repeat i dont know if is this or not, but is a very common problem.

Thanks, but BUF looks original and intact.
 

Xian Xi

JammaNationX,
15 Year Member
Joined
Dec 1, 2005
Posts
27,748
The only other time I experienced random resets was with off brand fast VRAM.
 

daskrabs

Ace Ghost Pilot
10 Year Member
Joined
Aug 23, 2010
Posts
1,313
More details:

Puzzle Bobble - crashes at beginning of attract
Metal Slug 2 - crashes at beginning of attract
Blue's Journey - crashes at beginning of attract
KoF 2002 - Completes attract. Start game, pick fighters, crashes after "Round 1", before "Fight"
SvC Chaos - Crashes at end of attract, before demo fight
AF2 - Attract complete, Plays Fine!!!!???!!!
RotD - Crashes at EVOGA screen
 

Xian Xi

JammaNationX,
15 Year Member
Joined
Dec 1, 2005
Posts
27,748
More details:

Puzzle Bobble - crashes at beginning of attract
Metal Slug 2 - crashes at beginning of attract
Blue's Journey - crashes at beginning of attract
KoF 2002 - Completes attract. Start game, pick fighters, crashes after "Round 1", before "Fight"
SvC Chaos - Crashes at end of attract, before demo fight
AF2 - Attract complete, Plays Fine!!!!???!!!
RotD - Crashes at EVOGA screen

Do you have a Diagnostic bios? If you do, then run the Video ram tests (Palette, fast and main).
 
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