Capcom Snk Conitinously reboots - need help

OldFoo · Post by **OldFoo** » Thu Sep 22, 2011 4:52 am

My capcom snk 2000 will load to the capcom version and international disclaimer screen, and then the system will promptly reboot. It will do this infinitely until turned off. It had been working without any errors. I checked voltages and they seemed ok. +5 seemed high at the power supply, measured about 5.22 at the MB itself, other voltages checked out fine. Where should I begin looking?

OldFoo · Post by **OldFoo** » Fri Sep 23, 2011 11:33 am

Hi there,

First turn down 5V to read about 5.15. Have to start somewhere

5.22 is a bit too high.

OldFoo · Post by **OldFoo** » Fri Sep 23, 2011 2:19 pm

Cageman wrote:Hi there,

First turn down 5V to read about 5.15. Have to start somewhere 5.22 is a bit too high.

just to be sure..... check voltages while motherbard wired and on!!!!

OldFoo · Post by **OldFoo** » Mon Sep 26, 2011 8:30 pm

Yes, I've already adjusted the +5v down. It's reading about 5.05 at the MB and all other voltages are within tolerance. Found a bunch of caked up dirt inside the cart under the vent holes and cleaned it all up, but still no luck. Rebooting at the same spot every time, definitely making me think it's a rom or ram error.

OldFoo · Post by **OldFoo** » Tue Sep 27, 2011 6:39 pm

Run the RAM and ROM tests from the service menu, that should tell you if either is bad.

Have you checked inside the Naomi? If the cart has that much dirt in it, it may be clogging a heat sink inside the main unit as well.

OldFoo · Post by **OldFoo** » Wed Sep 28, 2011 3:31 am

Will I be able to run the ram/rom tests without booting the game up? I did clean up the naomi board. It wasn't very dirty to be honest, went ahead and changed the super cap by the lithium battery too. I will try to get test menu running.

OldFoo · Post by **OldFoo** » Wed Sep 28, 2011 4:55 am

So long as it displays the boot logo you should be able to get into both RAM and ROM tests.