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Museum of the Game® & International Arcade Museum® Forums
Today I fired-up my Stargate and got an unhealthy looking rug pattern that behaves like it's going through the normal startup ram check, but never stops.
CPU board is throwing a 1-3-1 error code (of course.)
With the CPU board power cable disconnected, the voltages feeding the board are all correct -5, 12, & +5 volts. But when the connector is plugged into CPU board I get about 100 mV everywhere it should be -5 volts (ram and connector pin). 5 and 12 volts stay where they ought to be.