Quote: Originally Posted by xtremak
I have the same problem, my motherboard refuses to boot when +12V is supplied to ignition. I have checked all the rails and the values all look good but the board wont boot up, another thing I noticed is that when I remove +12V from the Ignition wire the board starts to boot up... This to me indicates some timing issue with the ON signal when Ignition is first put to +12V. Has anyone figured out a solution to this as yet.
If you read back a few posts you will see this:
Quote:
Originally Posted by andrewb
EPIA-SP1300 is a bit fussy at startup.
On the M2-ATX, changing R4 to a 80-120K (currently 47K) will soften the 5V rampup.
R4 is a small STM resistor, next to the ATX connector.
Future versions of M2-ATX will have the change in place.
-Andrei