June 17, 2024

Antminer S9 U-boot install - boot jumpers

I want to insert an SD card into my Antminer S9 and boot from it.

I am well aware that there are "boot mode" jumpers, and that they are currently set to boot from on-board NAND.

There are 4 jumpers labeled JP1, 2, 3, and JP4.
With the jumper to the left it is set to 1, to the right it is set to 0.
So here is how I find it set up for NAND boot: 

JP4 - MIO5 bm0  0   right
JP3 - MIO3 bm1  0   right
JP2 - MIO4 bm2  1   left
JP1 - MIO2 bm3  0   right
Here is how I want it set up for SD boot: 
JP4 - MIO5 bm0  1   left
JP3 - MIO3 bm1  0   right
JP2 - MIO4 bm2  1   left
JP1 - MIO2 bm3  0   right
In other words, I just need to move the top (JP4) jumper to change from NAND boot to SD boot.
Feedback? Questions? Drop me a line!

Tom's Computer Info / tom@mmto.org