Naomi 1 w/ Net DIMM 4.01 Setup

OldFoo · Post by **OldFoo** » Sat Aug 13, 2011 2:09 am

You need a Sun PSU that hooks directly to the Naomi to be able to power it with the NetDIMM, even without a GDROM. You shouldn't hook two power supplies to the Naomi (via a Y cable or whatever) at the time, as it causes issues. With a Sun PS, you'll have to use two power supplies in total with a Capcom I/O, the JAMMA PS you use now to power just the Capcom I/O, and then a Sun or other JVS PS to power the Naomi itself. The current 8-prong AMP connector going from the Capcom gets disconnected.

The Capcom I/O's power converter doesn't seem to be able to handle the power demands of the NetDIMM, and you can't hook a JAMMA PS to the Naomi directly as the Naomi needs 3.3V that the JAMMA PS doesn't output.

OldFoo · Post by **OldFoo** » Sat Aug 13, 2011 12:59 pm

tom61 wrote:You need a Sun PSU that hooks directly to the Naomi to be able to power it with the NetDIMM, even without a GDROM. You shouldn't hook two power supplies to the Naomi (via a Y cable or whatever) at the time, as it causes issues. With a Sun PS, you'll have to use two power supplies in total with a Capcom I/O, the JAMMA PS you use now to power just the Capcom I/O, and then a Sun or other JVS PS to power the Naomi itself. The current 8-prong AMP connector going from the Capcom gets disconnected.

The Capcom I/O's power converter doesn't seem to be able to handle the power demands of the NetDIMM, and you can't hook a JAMMA PS to the Naomi directly as the Naomi needs 3.3V that the JAMMA PS doesn't output.

:smt023

OldFoo · Post by **OldFoo** » Sat Aug 13, 2011 3:30 pm

Got it. Makes perfect sense. Going to try and find a crimping tool w/ edge connectors today and will let you guys know how it goes. Thanks again for all the help and advice!

OldFoo · Post by **OldFoo** » Mon Aug 15, 2011 4:35 pm

Cageman wrote:
tom61 wrote:You need a Sun PSU that hooks directly to the Naomi to be able to power it with the NetDIMM, even without a GDROM. You shouldn't hook two power supplies to the Naomi (via a Y cable or whatever) at the time, as it causes issues. With a Sun PS, you'll have to use two power supplies in total with a Capcom I/O, the JAMMA PS you use now to power just the Capcom I/O, and then a Sun or other JVS PS to power the Naomi itself. The current 8-prong AMP connector going from the Capcom gets disconnected.

The Capcom I/O's power converter doesn't seem to be able to handle the power demands of the NetDIMM, and you can't hook a JAMMA PS to the Naomi directly as the Naomi needs 3.3V that the JAMMA PS doesn't output.

:smt023

yes you need to power the naomi and dimm directly with a naomi power supplier

OldFoo · Post by **OldFoo** » Wed Aug 31, 2011 2:14 pm

Success! I just wanted to thank everyone for their help and provide a quick update for anyone struggling with the same issue. I hooked up the ATX power supply as suggested directly to the Naomi 1 board and left the other power supply running only to the Capcom I/O and made sure all the voltages checked out. I actually still got a black screen when I booted, so I removed the top part of the DIMM board and then got the Naomi screen with an error message which was actually great progress. I then reconnected the top board, moved the jumpers and security chip around and eventually it booted with the network message.

Thanks again for all the help and advice.

OldFoo · Post by **OldFoo** » Wed Aug 31, 2011 7:56 pm

You're welcome. Good to see it is all sorted now!