t400 build minor comment

diff --git a/guider.mdwn b/guider.mdwn
index 2a98c2bfb17c79987eeb5b61b7da0ab77ffb3c29..ddedf7b29cc5d13938e70612a7f70fcdb755e3fb 100644 (file)
--- a/guider.mdwn
+++ b/guider.mdwn
@@ -53,6 +53,8 @@
     # NEXT STEPS ARE DONE ON EXTERNAL DEVICE (we used BeagleBoneBlack)
     # See libreboot for external flash, just disassemble laptops (can take a few hours) -> https://libreboot.org/docs/install/t400_external.html
     # Flash with for example BBB: https://libreboot.org/docs/install/bbb_setup.html
+    # (Probably you want to power the BBB with 5V mini-usb or power adapter and connect everything to it. However, when we flashed we connected BBB to 5V on regular ATX PSU, and the chip gets 3.3V directly from the PSU, and ground from BBB)
+
     ./flashrom -p linux_spi:dev=/dev/spidev1.0,spispeed=512 -r factory1.rom
     ./flashrom -p linux_spi:dev=/dev/spidev1.0,spispeed=1024 -r factory2.rom
     ./flashrom -p linux_spi:dev=/dev/spidev1.0,spispeed=1024 -r factory3.rom