3 ms·

Such a simple motherboard could even just put the power supply onboard, with a barrel plug or something, similar to how routers like this are configured: https

Such a simple motherboard could even just put the power supply onboard, with a barrel plug or something, similar to how routers like this are configured: https://www.mini-box.com/Alix-APU-Systems https://www.mini-box.com/Alix-APU-Systems

tesseract 3y ago
So much peripheral functionality has been pushed inside the CPU that a modern desktop motherboard is from one point of view essentially a fancy DC-DC converter that happens to also handle I/O port breakout. The motherboard has to translate 12 volts at 10-ish amps from the PSU, into a highly stable 1.2-ish volts at 100-ish amps for the CPU power rail.
paulmd 3y ago
Many motherboards have 12V or 19V DC input barrels, I think thin-itx requires it. Generally the keyword you want to search for is “industrial motherboard”, some server motherboards have them too. Asrock Rack and Asrock Industrial and Supermicro are great. https://www.asrockrack.com/general/productdetail.asp?Model=AM5D4ID-2T/BCM#Specifications https://www.asrockrack.com/general/productdetail.asp?Model=A... https://www.asrockind.com/en-gb/IMB-X1231 https://www.asrockind.com/en-gb/IMB-X1231 https://www.asrock.com/mb/AMD/X300TM-ITX/index.asp https://www.asrock.com/mb/AMD/X300TM-ITX/index.asp (I fucking love asrock rack’s design team, absolute madlads and some seriously impressive density etc. they’re out there making the designs people don’t know they want, romed8-2T and genoad8x-2T are fantastic.) Mini-box themselves sell dc-dc converters and “picoPSUs” that do this as well, although idk if they sell one with pcie power plugs. The M350 is a surprisingly high quality case for the price, and while my first picoPSU failed almost immediately (first shutdown iirc) they warrantied it no problem. A very funny trip through some oracle branded ordering/invoicing framework. Good people, good products. My one criticism is that there is very obviously a lot of psu noise. I had a dell laptop and my pc desktop and the picopsu on an audio push-button switch and I kept getting a ton of ground loop and couldn’t figure it out etc and finally noticed it stopped and then came back as I plugged the M350 from the audio switch. Iirc it also showed through usb dac as well. I had the DIN plug brick and I think it has a lot of noise. Intel NUCs are also extremely high quality implementations and have a great aftermarket with brands like akasa and hdplex etc.

tesseract 3y ago

So much peripheral functionality has been pushed inside the CPU that a modern desktop motherboard is from one point of view essentially a fancy DC-DC converter that happens to also handle I/O port breakout. The motherboard has to translate 12 volts at 10-ish amps from the PSU, into a highly stable 1.2-ish volts at 100-ish amps for the CPU power rail.

paulmd 3y ago

Many motherboards have 12V or 19V DC input barrels, I think thin-itx requires it. Generally the keyword you want to search for is “industrial motherboard”, some server motherboards have them too. Asrock Rack and Asrock Industrial and Supermicro are great. https://www.asrockrack.com/general/productdetail.asp?Model=AM5D4ID-2T/BCM#Specifications https://www.asrockrack.com/general/productdetail.asp?Model=A... https://www.asrockind.com/en-gb/IMB-X1231 https://www.asrockind.com/en-gb/IMB-X1231 https://www.asrock.com/mb/AMD/X300TM-ITX/index.asp https://www.asrock.com/mb/AMD/X300TM-ITX/index.asp (I fucking love asrock rack’s design team, absolute madlads and some seriously impressive density etc. they’re out there making the designs people don’t know they want, romed8-2T and genoad8x-2T are fantastic.) Mini-box themselves sell dc-dc converters and “picoPSUs” that do this as well, although idk if they sell one with pcie power plugs. The M350 is a surprisingly high quality case for the price, and while my first picoPSU failed almost immediately (first shutdown iirc) they warrantied it no problem. A very funny trip through some oracle branded ordering/invoicing framework. Good people, good products. My one criticism is that there is very obviously a lot of psu noise. I had a dell laptop and my pc desktop and the picopsu on an audio push-button switch and I kept getting a ton of ground loop and couldn’t figure it out etc and finally noticed it stopped and then came back as I plugged the M350 from the audio switch. Iirc it also showed through usb dac as well. I had the DIN plug brick and I think it has a lot of noise. Intel NUCs are also extremely high quality implementations and have a great aftermarket with brands like akasa and hdplex etc.