PSU for 12V "Thin" ITX build

[d3sl91]

Hi All,

 

I am building a small ITX system that I need to run at 12V (Due to being used in a situation where other gear is also operating at 12v). 

I am using the Asus Prime H310T, which is a pretty unique motherboard that is used in AIO type installations. It is unique, in that it uses either a 19V or a 12V DC input, rather than your typical PSU. https://www.asus.com/Motherboards/PRIME-H310T/overview/

The manual states: "Use a 90W adapter when a 35W (T-Version) CPU is installed on the system. Use a High-rated adapter (Above 90W) when a high-rated CPU (45W or higher) is installed on the system. I plan to use a G5400 (54W).

My question, is am I correct in assuming that it would require the same wattage regardless of voltage? Or is anyone else familiar with these who can tell me otherwise?

[GDRRiley]

it is talking about a 90w 120v ac adapter.

I think you'll need 8amps or so for 12v DC