I have purchased 2 of these boards one from a German online retailer and one directly from Asus USA. I currently have a support ticket with Asus USA tier 2. I have 2 discrete power supplies for testing the 19V power input at the 2 pin Molex. An HDPlex 160 watt AC to DC and a 400 watt as well. I have been told and this makes sense to me, The power input from the DC jack for laptop brick PS connection on thin ITX boards is connected in parallel through the PCB so that only ONE power supply type can be used at one time. (BTW the German EU version is not RMAable in the US as the serial number when entered is location proprietary and the RMA will not complete)
So the problem. Both boards will not post from either the 160 or the 400 when connected. The Asus User manual and the PCB board on any of their thin ITX board is not slick screened with the location of the Positive pinout. However the Atx spec for CPU 2 and 4 pin board connection of 12V or 19V places the positive connection from a power supply such as an HDplex or a Luna Designs at the Molex lock pin side. Both of these boards post to the OS with my test 160-watt 19V laptop brick. But, not the Hd Plex's when separately connected. Not even a momentary fan spin-up.
So if the connections are in parallel between the LapTop brick jack and the 2 pin Molex one of the pins at the Molex should be hot 19 v and should be testable with a multimeter. My question is did Asus wire the pins backward as I have not tested this out yet or is there another design flaw in these boards, that prevents the HDPlexs from posting the boards, just as the laptop brick does? Any thoughts on this problem would be appreciated??
I will post Asus's answer to my ticket when I receive it.
So the problem. Both boards will not post from either the 160 or the 400 when connected. The Asus User manual and the PCB board on any of their thin ITX board is not slick screened with the location of the Positive pinout. However the Atx spec for CPU 2 and 4 pin board connection of 12V or 19V places the positive connection from a power supply such as an HDplex or a Luna Designs at the Molex lock pin side. Both of these boards post to the OS with my test 160-watt 19V laptop brick. But, not the Hd Plex's when separately connected. Not even a momentary fan spin-up.
So if the connections are in parallel between the LapTop brick jack and the 2 pin Molex one of the pins at the Molex should be hot 19 v and should be testable with a multimeter. My question is did Asus wire the pins backward as I have not tested this out yet or is there another design flaw in these boards, that prevents the HDPlexs from posting the boards, just as the laptop brick does? Any thoughts on this problem would be appreciated??
I will post Asus's answer to my ticket when I receive it.