nerdygrrl
Well-known member
PS Voltages Tanking When 1 Slot Neo Board Installed
I have been trying to put together a Neo Geo cab with a one slot board for a friend. The one slot PCB is tested and working in my two slot cab.
I installed a brand new Suzo Happ 130W Power Pro Power Supply Part # 80-0210-00
https://na.suzohapp.com/products/power_supplies/80-0210-00
When I plugged it in and tested voltages I was within range on the PS and at the end of harness. When I plug the PCB in the PS stars to squeal and the voltages plummet.
The neg 5 stays within range, but the +5 drops to around 3 and the 12V is basically MIA.
I know my 2/4 slot boards need more power and the cabs usually come with a 150W PS, but I thought the single slot boards were ok with a normal 115W switcher.
I should add I am using a used Neo 4 slot harness in here, but assumed it was ok, given the voltages at the edge connector are cool when tested w/o board.
Any ideas on what would cause the PS to tank like that? Should I toss a 115W in and see how it goes?
I have been trying to put together a Neo Geo cab with a one slot board for a friend. The one slot PCB is tested and working in my two slot cab.
I installed a brand new Suzo Happ 130W Power Pro Power Supply Part # 80-0210-00
https://na.suzohapp.com/products/power_supplies/80-0210-00
When I plugged it in and tested voltages I was within range on the PS and at the end of harness. When I plug the PCB in the PS stars to squeal and the voltages plummet.
The neg 5 stays within range, but the +5 drops to around 3 and the 12V is basically MIA.
I know my 2/4 slot boards need more power and the cabs usually come with a 150W PS, but I thought the single slot boards were ok with a normal 115W switcher.
I should add I am using a used Neo 4 slot harness in here, but assumed it was ok, given the voltages at the edge connector are cool when tested w/o board.
Any ideas on what would cause the PS to tank like that? Should I toss a 115W in and see how it goes?