Reply 20 of 22, by Baoran
shamino wrote on 2022-04-28, 22:49:Baoran wrote on 2022-04-28, 11:10:From looking documented jumpers on my motherboard it just feels like base voltage is 2.0V with all jumpers open and closing jumpers just add 0.1V, 0.2V, 0.4V and 0.8V to that so closing all of them would make it 3.5V total.
On an Intel spec compliant voltage regulator I believe 2.0V is the minimum if the high order VID signal to the regulator has been hardwired and not connected to a jumper. If it's fully jumpered then there would be 5 VID jumpers. If you were to dig into it it's possible you could find a way to add the extra bit, but it shouldn't be a big deal to run 2.0V.
This is how it is pretty much. JP30 are the ones I mentioned before and I think JP1 and JP2 are probably related to if I/O voltage and cpu voltage are the same or different.