Recent content by JLatte64

Fwiw, I've asked ASRock support in an email about 12V compatibility with this board and, unsurprisingly, they've said it will not work with 12V (though the X300 was rated for 19V and worked with 12V just fine... so we shall see!)

Bumping the thread - For the load switch, it seems I can just use a MOSFET and resistor soldered to a board. I'm curious about the MOSFET choice here - would the right one be something like a P-Channel, switching on the high side, rated for (assuming we have +19V from the power supply and 12V...

Fair enough! I'm glad you found something that works for you - you really can't beat that price. XD I look forward to seeing the progress!

Heya @milesvw ! I had the same idea as you, haha! I've been developing a concept for a chassis just like yours. 55mm internal, 200mm in length, with a PIO board and the 4060 LP. Have you seen Mean Well's LOP-300 and LOP-200 series units? They might be the PSUs you're looking for! They are in...

@msystems Thanks for the recommendation - I think that Pololu board would be perfect. I have seen some builds here use them to step-down 19V to 12Vdc for a GPU without a problem (afaik). So it should be good. And @REVOCCASES thank you for all of your links as well - looking at how you wired...

An update on this: I found a 250W AC-DC Power Supply unit that outputs 19V here (its rated voltage ripple is 190mV, the website spec is wrong - though that should be fine for powering the STX motherboard, though I'm not 100% on that.. I think a 1% voltage ripple is pretty standard though)...

Is there anyone here that could help me on how to wire up the PSU, load filter, DC-DC, DC filter, and GPU/Riser?

I might go with a DC-DC from the i7c series, as it's compact (and fits my solution save for the ripple), and connect it to a filter circuit to eliminate the ripple.. I think that can be done in the space I have? Though, I have no idea how to wire all of those things together along with a load...

Thanks for your reply and the examples - those are great references! Unfortunately, I do want to go with this B660 board, as I'd like to keep an Intel CPU for the build. I also want this unit to be brickless, as contained as possible, so I'm going to need a DC-DC converter from 12V to 19V...

Hey, thanks for your thorough and detailed reply! Much appreciated. Unfortunately, I'm wanting to make this build brickless, so I'd like to stay away from using a GaN brick. Even when going with one, they are large and flat, and don't fit well within the space I've allotted for the power...

I'm designing a custom chassis to house an STX motherboard, a low-profile Mean Well PSU, and an RTX 4060 Low-Profile, but I need advice from experienced folk on a power solution. First off, here's the component layout I've come up with (click the left/right arrows to scroll through - there are...