Seems like if someone were to take the above mentioned item and add the ability to adjust the 3.3V and 5V outputs to get them well dialed then it would awesome to use.
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Powering Naomi's with ATX PSUs
- Thread starter varjak0
- Start date
sorry to resurrect this thread but the happ is dificult to get where I am, are you saying i can just get some separate switching mean well power supplies for the 3.3 and 5v?
I'm trying to power a net-dimm triforce but the atx psu that did run the original non net-dimm triforce will not boot up the new triforce. 5v line reads 4.6 and 3.3 line reads 3.11
irepairsega
Well-known member
These will work fine. I have a one off PSU built by a friend using three units like this all enclosed in a steel box (also one off) and it works great for anything I power up thru Chihiro. You can get as creative as you like doing this. Mine has individual PSUs, individual displays for DCV and current draw, power switch, big Noctua fan across back. You don't have to go to that extreme to make something that will work fine for N1/N2 just as long as you can set the 5 and 3.3.
Attachments
Where are you looking at the Happ psus? There's a few sites selling them. There was no issue shipping to me in the UK, so Europe shouldn't be a problem unless the Netherlands has some postal issues I don't know about? (Sorry, just googled the arcade in your profile picture.)
I ordered from Betson Imperial Parts. Cost about $228 for 3 PSUs and $60 of that was UPS 3-day shipping. Took less than a week to get here.Yep netherlands is correct. When i said hard to get i meant slow / expensive really. I can only find us webshops, where did you order from?
The mean wells i can get next day delivery and free shipping
In my experience at least, in the arcade world you need to get rid of the next day delivery mindset. I agree that it's convenient and nice, but the US & China is king for arcade equipment (and Japan to a slightly lesser extent). So if you're not in those countries, you gotta wait for shipping.
But all in all it's your choice
I could have gone your route and made my own PSU out of smaller individual units, but didn't feel confident doing that. So, I paid more for the convenience of getting a "plug and play" solution.Betson definitely does stock the older ones.
https://www.betsonparts.com/amusement-redemption/peter-chou-up-7-300-watt-atx-power-supply.html
It still lets you add to cart and order, just advises that it's discontinued (with the inferment that you're getting NOS). (Is 'Inferment' even a word?)
While this is bumped, anyone know the correct way to dial the adjustment for the 3.3v and 5v?
Ive been told to adjust when powered on with no load, then again under load. Should I adjust the voltages to be slightly higher when going in the Naomi? (ie 3.4v)
Ive been told to adjust when powered on with no load, then again under load. Should I adjust the voltages to be slightly higher when going in the Naomi? (ie 3.4v)
I set the 5v and 3.3v without load first and then checked them again with everything attached (no difference). I set everything as close to perfect as possible, not slightly higher
Thanks! I was wondering about the "setting it higher" thing since I've heard of it in several places, because the voltage can drop. So it'd be 3.3v going in at the power plugs then 3.25v by the time it gets to whatever needs it.
